U.S. public vehicle records

Mercedes-Benz GLC 300 engine problems

25 complaint narratives mention engine terms.

Key facts

420 owner complaints analyzed

46 distinct recall campaigns

15,200 mi median reported failure mileage

Scope: 2018 to 2026 model years. Data updated: 2026-09-30 (September 30, 2026). 90 complaints include usable failure mileage. View data status.

Engine operation evidence

25 of 420 complaints match this topic (6.0%). The keyword filter can include complaints that mention a transmission without reporting its failure. View matching rules.

Owner report 11632530 · 2024-12-26 (December 26, 2024)

Vehicle experienced transmission shifting issue after having driven for a period of 15 - 20 minutes, with engine oil temp reaching above 103/105 degrees C, transmission won't shift into Drive. Automatically pops into Neutral. Other times engine will stall, required complete restart. This creates hazard for operator and cars following behind as driver needed to steer vehicle out of the way of traffic while in Neutral. Independent MB repair shop and dealership scanned vehicle and identified with code P073E code. Dealer upgraded TCM control mo…

Owner-reported narrative. Look up ODI 11632530 at NHTSA ↗

Owner report 11676731 · 2025-07-28 (July 28, 2025)

The car does not go into drive from reverse and will sometime automatically shift itself from a low drive gear (D1) into Neutral without warning. After this happens - the car also can't get back into D1. It takes about 20 seconds for the car to shift back into a Drive gear and it will jolt into D3 violently. This has been a scary experience on many occassions - especially at red lights when this happens and we can't get the car out of neutral for some time. This was diagnosed by mercedes dealership near us as a fawlty sensor in the transmissi…

Owner-reported narrative. Look up ODI 11676731 at NHTSA ↗

Owner report 11470529 · 2022-06-22 (June 22, 2022)

While driving on the interstate (65mph) in traffic, there was a sudden loss of power causing deceleration and the inability to maintain speed. A collision was barely avoided both from being rear-ended and from trying to safely move to the shoulder while other traffic passed. A certified mechanic later determined the piston in cylinder 2 broke, the spark plug broke and the piston rings pulled to the top. The mechanic also said, "Replacement of engine required." The vehicle has 52,839 miles (2,839 miles above the 50,000 warranty). There were…

Owner-reported narrative. Look up ODI 11470529 at NHTSA ↗

Owner report 11700738 · 2025-11-21 (November 21, 2025)

The contact owns a 2019 Mercedes-Benz GLC300. The contact stated that while shifting from reverse to drive, the vehicle stalled and remained in neutral. After the vehicle stalled, the vehicle took approximately 8 minutes before the vehicle could be shifted into drive. Once in drive, the vehicle would jerk and shift to D3 before accelerating. The check engine warning light would illuminate while in reverse. The vehicle was taken to the dealer, who diagnosed a transmission failure due to a malfunctioning valve body and low pump pressure. The deal…

Owner-reported narrative. 60,000 miles reported. Look up ODI 11700738 at NHTSA ↗

Owner report 11736351 · 2026-05-07 (May 7, 2026)

On April 16, 2026, within minutes of being released from a certified dealership, my 2019 Mercedes-Benz GLC 300 suffered a sudden and total loss of propulsion while traveling at high speed on the Belt Parkway (NY). Despite depressing the accelerator, the vehicle failed to maintain speed and stalled in active traffic. This created an immediate life-safety hazard, forcing me to navigate across multiple lanes without engine power to avoid a high-speed rear-end collision. The vehicle was released to me by Mercedes-Benz of Brooklyn on April 16, 2026,…

Owner-reported narrative. Look up ODI 11736351 at NHTSA ↗

Explore the data

Vehicle analysis explorer

Inspect model-year patterns, reported mileage, monthly activity and the evidence behind each signal.

Data completeness

420 unique complaints in this selection. Analysis snapshot: 2026-09-30.

21.4%Usable mileage90 / 420 records

100.0%Valid incident date420 / 420 records

100.0%Valid filing date420 / 420 records

100.0%Ordered incident and filing dates420 / 420 records

Missing, zero and invalid mileage is excluded. Dates after the snapshot are excluded. Examples are limited selections, not a representative sample.

Problems by model year

Model-wide comparison of the eight most reported components across the model. Cells show counts and shares within each model year. Open a cell for source examples.

From model yearThrough model year

Component complaint heatmap
Component	2018	2019	2020	2021	2022	2023	2024	2025	2026
Engine	2832.2% ODI 11094094 · 1,110 mi TL* THE CONTACT OWNED A 2018 MERCEDES-BENZ GLC300. WHILE DRIVING 55 MPH, THE REAR DRIVER'S SIDE TIRE WAS PUNCTURED. THE CONTACT STATED THAT THE VEHICLE WAS EQUIPPED WITH 18 INCH RUN FLAT TIRES. THE CONTACT PULLED THE VEHICLE OVER TO THE SIDE OF THE ROAD. AFTER WAITING APPROXIMATELY 70 MINUTES ON THE SIDE OF THE ROAD, THE TIRE BURST INTO FLAMES. THE CONTACT WAS UNABLE TO PROVIDE THE TIRE MANUFACTURER, TIRE LINE, COMPLETE TIRE SIZE, OR DOT NUMBER. THE CONTACT STATED THAT THE FIRE ORIGINATED IN THE WHEEL WELL OF THE VEHICLE AND WAS NOT NECESSARILY… Look up ODI 11094094 at NHTSA ↗	1123.4% ODI 11443463 I was going through drive thru waiting in line, when suddenly the car started to accelerate sharply, I put two feet on the brakes to stop the forward motion of vehicle - could not stop or place in park or neutral. their was ample room from the vehicle in front.. slightly removed feet from brake, suv lunged at vehicle in front kept on lunging then came to a halt...vehicle went back to normal operation. Look up ODI 11443463 at NHTSA ↗	2130.4% ODI 11455199 · 30,000 mi The contact's wife owns a 2020 Mercedes-Benz GLC300. The contact stated that while his wife was driving at an undisclosed speed, the vehicle stalled. The vehicle was towed to the dealer and diagnosed with ignition failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired and remained at the dealer. The manufacturer was made aware of the failure but declined to buy back the vehicle and offered a two-year service plan for a free oil change per year. The failure mileage was approximately 30,000. Look up ODI 11455199 at NHTSA ↗	3045.5% ODI 11399796 · 10 mi I HAVE PURCHASED THE 2021 MERCEDES-BENZ GLC 300 4MATIC COUPE AND NOTICED A DESIGN FLAW ON THE CAR. AS YOU CAN SEE IN THE ATTACHED PICTURE, THE FRONT BUMPER PROVIDES NO PROTECTION TO THE RADIATOR. IT HAS ALREADY STARTED CHIPPING DUE TO THE ROCK DAMAGE. THIS CAN LEAVE THE CAR IMPAIRED ON THE FREEWAY WHICH CAN BE DANGEROUS. I DID CONTACT THE DEALER AND THEY SAID THERE IS NOTHING THEY CAN DO. Look up ODI 11399796 at NHTSA ↗	1016.9% ODI 11569909 The car randomly shows an empty tank of gas at the start of the day, when there was a half tank of gas remaining. I filled the gas, but the car did not register any fuel-up and kept showing empty. I took it to the dealer for repair and the fuel tank sensor was replaced under warranty a month ago. Now, this week the same issue reappeared. The car began showing no gas in the tank on a random morning last week and remained driveable for a couple of days. The gas levels reappeared corrected on day #3. Today, 4 days later, the car went back to sho… Look up ODI 11569909 at NHTSA ↗	1527.3% ODI 11529864 Sunday, June 25, when I was driving the car on the road, the engine shut off and the car stopped running. 3 warning lights show on screen: engine light; 48v Battery Service Required; 12v Battery service required. I used the break to park the car on the roadside after that. I tried many times to restart the car, Waited over one hour and 40 minutes it finally started again, the engine warning light was still on until the second day morning, and I was able to take pics as evident. 1. What component or system failed or malfunctioned, and is it a… Look up ODI 11529864 at NHTSA ↗	733.3% ODI 11564146 2 SEPERATE ISSUE DIGITAL LIGHTING FAILED, THEN 2ND ISSUE WHICH IS STILL BEING WORKED ON, BEEN A WEEK WITHOUT THE VEHICLE WHICH IS ONLY A MONTH OLD WITH 1100 MILES ON IT, THE ENTITE SYSTEM ISNT WORKING WITH LOTS OF CODE ERROR MESSAGES AND WILL NOT START. THE CURRENT UPDATE FROM MERCEDES IS THEY STARTED A CASE AND TESTING THE VEHICLE AFTER REPLACING THE POWER TRAIN. THE TECHNICIAN AGREED THIS IS NOT NORMAL FOR SUCH A BRAND NEW CAR. I AM CONCERNED FOR MY FAMILYS SAFETY AND THINK THIS IS A LEMON Look up ODI 11564146 at NHTSA ↗	318.8% ODI 11665555 I am writing to formally express my deep dissatisfaction and serious concerns regarding both my 2024 and 2025 Mercedes-Benz vehicles, purchased/leased through your dealership. I am now facing an unacceptable situation that not only violates my consumer rights but has repeatedly placed my personal safety in jeopardy. After significant issues with my original 2024 vehicle, I was provided a replacement, which I took delivery of on October 15, 2024. Unfortunately, within two weeks, the replacement vehicle was already back in the shop for repairs. … Look up ODI 11665555 at NHTSA ↗	0Unavailable No examples available for this selection.
Electrical System	1314.9% ODI 11113400 · 6,124 mi TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ GLC300. THE CONTACT STATED THAT THE VEHICLE DOORS AUTOMATICALLY LOCKED WITH THE KEYS INSIDE OR OUTSIDE OF THE VEHICLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF ALEXANDRIA (200 S PICKETT ST, ALEXANDRIA, VA 22304, [phone removed]) FOR DIAGNOSTIC TESTING AND REPAIRS. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE VIA EMAIL. THE FAILURE MILEAGE WAS 6,124. THE VIN WAS NOT AVAILABLE. Look up ODI 11113400 at NHTSA ↗	1327.7% ODI 11408485 MERCEDES STATES THAT THE UPDATE WILL HAPPEN OVER AIR BUT THEY DON'T TELL ME WHEN OR HOW LONG IT WILL TAKE TO HAPPEN. IT IS A SIMPLE UPDATE AND I NEED THE RECALL OFF MY CAR. Look up ODI 11408485 at NHTSA ↗	45.8% ODI 11454089 The contact owns a 2020 Mercedes-Benz GLC300. The contact received notification of NHTSA Campaign Number: 21V354000 (Back Over Prevention, Electrical System). The dealer was notified of the recall and informed the contact that the recall repair would be performed over-the-air (OTA). The contact then called the manufacturer and was informed that the update was not available; he was informed that there was a waiting list and that he would receive a notification when the update for the vehicle was available. The contact had not experienced a failu… Look up ODI 11454089 at NHTSA ↗	812.1% ODI 11441952 The contact owns a 2021 Mercedes-Benz GLC300. The contact received a recall notification for NHTSA Campaign number: 21V354000 (Back Over Prevention, Electrical System). The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was notified of the issue. The part was not available for the repair. The contact had not experienced a failure. Parts distribution disconnect. Look up ODI 11441952 at NHTSA ↗	1220.3% ODI 11475115 · 925 mi The contact owns a 2022 Mercedes-Benz GLC300. The contact stated that after parking the vehicle, the moon roof and windows independently rolled down. The contact was able to roll the windows up. The contact stated that two days later the radio independently turned on while the vehicle was still turned off. The contact was able to turn off the radio. The GPS and Bluetooth connection also malfunctioned. The dealer performed a software update however, the failure recurred. The manufacturer was made aware of the failure. The approximate failure mil… Look up ODI 11475115 at NHTSA ↗	3054.5% ODI 11525409 When starting the vehicle, all the lights and alarms have come on and vehicle is not drivable. This has happened 4 times. 3/4 times the vehicle has started after an hour or two. One time I have had to have it towed in. I bought this car on April 27th. First time this happened was 5/29. I have been without the use of this car for 28 days today. The service manager called today and Mercedes is trying to fix the problem, they say it is happening to many people. Look up ODI 11525409 at NHTSA ↗	523.8% ODI 11564146 2 SEPERATE ISSUE DIGITAL LIGHTING FAILED, THEN 2ND ISSUE WHICH IS STILL BEING WORKED ON, BEEN A WEEK WITHOUT THE VEHICLE WHICH IS ONLY A MONTH OLD WITH 1100 MILES ON IT, THE ENTITE SYSTEM ISNT WORKING WITH LOTS OF CODE ERROR MESSAGES AND WILL NOT START. THE CURRENT UPDATE FROM MERCEDES IS THEY STARTED A CASE AND TESTING THE VEHICLE AFTER REPLACING THE POWER TRAIN. THE TECHNICIAN AGREED THIS IS NOT NORMAL FOR SUCH A BRAND NEW CAR. I AM CONCERNED FOR MY FAMILYS SAFETY AND THINK THIS IS A LEMON Look up ODI 11564146 at NHTSA ↗	1168.8% ODI 11649883 The instrument cluster panel blacked out when I started driving. Tried to turn off and on, but didn't come back on. Look up ODI 11649883 at NHTSA ↗	0Unavailable No examples available for this selection.
Unknown Or Other	2023.0% ODI 11066706 · 20 mi MY HEEL GOT STUCK WHEN PRESSING THE GAS PEDAL CREATING A SAFETY HAZARD. MY SHOE WAS STUCK AND I HAD TO DRIVE BAREFOOT. I TOOK IT TO THE MERCEDES CALABASAS DEALERSHIP AND THEY SAID THERE WAS NOTHING THEY COULD DO AND I SHOULD NOT WEAR HEELS WHEN DRIVING. I HAVE DRIVEN FOR OVER 30 YEARS WITH NO ISSUES. Look up ODI 11066706 at NHTSA ↗	1225.5% ODI 11469867 -I purchased a GLC300. Today I discovered I own a GLC 230 HAZMAT SUV with a Hydrogen tank and other dangerous items. German hazard lights that do not mirror my driver's manual or the car I purchased. -Hazard lights showing SRS systems malfunctioning - Hazard lights showing projected contact -Two unwanted unknown installations of Mercedesa branded navigation systems have been installed in my car without my permission. This is not over the air updates. I have the serial numbers. Mercedes-Benz has yet to respond to my requests for safety and… Look up ODI 11469867 at NHTSA ↗	1521.7% ODI 11385956 · 500 mi THE AUDIBLE TIC-TOK SOUND OF THE TURN SIGNAL IS WAY TOO SOFT. THE SOUND IS SUPPOSED TO GIVE ONE NOTICE THAT THE TURN SIGNAL IS ON. IT SIMPLY ISN'T LOUD ENOUGH TO PROVIDE THAT FEEDBACK. CONSEQUENTLY I OFTEN FIND THAT I'M DRIVING DOWN THE STREET HAVING COMPLETED A HALF-TURN ( ONE WHERE IT DOESN'T TRIGGER A SHUT OFF) WITH MY TURN SIGNAL ON FOR BLOCKS BEFORE I NOTICE THAT THE TURN BLINKER IS STILL ON. Look up ODI 11385956 at NHTSA ↗	710.6% ODI 11399841 THERE IS AN EXISTING ISSUE FOR MERCEDES-BENZ VEHICLES. SERVICE CAMPAIGN #2019040010. HOWEVER, IT ONLY INCLUDES 2019 MODELS. I PURCHASED A 2021 GLC MODEL AND IT HAS THE SAME ISSUE OF NOT HAVING THE PROTECTION ON FRONT RADIATOR. LOOKS LIKE MERCEDES-BENZ DIDNT DO ANYTHING ABOUT THIS ISSUE AND KEPT MAKING VEHICLES WITH THE SAME DEFECT. Look up ODI 11399841 at NHTSA ↗	711.9% ODI 11557307 My father was driving home from golf. He was driving for about 5 minutes. He was at a red light and smoke started coming out of the car. He turned car off, then on. Smoke started getting worse. He put on the emergency blinkers, got on the sidewalk, and looked underneath the car. Within a few minutes the car blew up. There were no warning lights and the car was driving normally. Car was brand new and was about 1 year old. 2022 GLC. Look up ODI 11557307 at NHTSA ↗	814.5% ODI 11537315 VEHICLE SHUT DOWN WHILE DRIVING. WARNING LIGHTS ILLUMINATE, CHECK ENGINE LIGHT, DO NOT SHIFT INTO GEAR WARNING, 48V BATTERY WARNING, ETC. WOULD NOT STOP ALARMING. COULD NOT SHUT OFF CAR. COULD NOT PUT CAR INTO PARK. COULD NOT START CAR. WARNING BUZZER WOULD GO OFF ENTIRE TIME. CAR WAS ONLY ABLE TO BE STARTED WHEN REMOTE START REQUEST WAS INITIATED WHEN CAR WAS IN THIS MODE, CAR WAS STARTED BUT THEN SHUT OFF 10 SECONDS LATERS APP STATES, “CHECK ENGINE LIGHT ON” WIL SHUT OFF THE CAR. CAR BACK TO NORMAL AFTER EVENT APPROX 60 MIN BUT CHECK ENGINE L… Look up ODI 11537315 at NHTSA ↗	314.3% ODI 11566165 Brand new '24 GLC300 4MATIC. Engine light came on with no error message. Brought it in for service. Miscellaneous engine repair states: "Found current code POA7F00 in drivetrain control unit. Followed LI54.10-P-077250. Cleared codes. Drained 48V battery to below 25% SOC. Charged vehicle to 70% SOC. Job complete." Service foreman mentioned that the service performed may not resolve issue. He contacted Mercedes-Benz Engineering and said no fix at this time and no ETA. Left service with no more engine light on. However, it didn't take… Look up ODI 11566165 at NHTSA ↗	318.8% ODI 11682705 The driver’s seat automatically adjusted while the vehicle was in drive, causing me to lose the ability to reach the pedals and almost resulting in a collision. While driving my 2025 Mercedes-Benz GLC 300 4MATIC with my children in the car, I stopped at a stop sign when the driver’s seat suddenly began adjusting itself backward. My husband also drives this vehicle, and because I had not logged into my driver profile, the car began moving the seat and controls to his saved position, while the car was in drive. The seat moved so far back that I… Look up ODI 11682705 at NHTSA ↗	0Unavailable No examples available for this selection.
Fuel/Propulsion System	78.0% ODI 11166030 · 14,400 mi I WAS WAITING AT A RED TRAFFIC SIGNAL ON ROUTE 7 IN LEESBURG, VA AND THE VEHICLE WAS IN ECO MODE WITH AUTO STOP ENGAGED. WHEN THE LIGHT CHANGED TO GREEN I DEPRESSED THE ACCELERATOR AND THE CAR IMMEDIATELY SHUT OFF AND THE GAUGES ON THE DASH ALL LIT. IT TOOK ME THREE ATTEMPTS BUT IT FINALLY RESTARTED. Look up ODI 11166030 at NHTSA ↗	36.4% ODI 11469867 -I purchased a GLC300. Today I discovered I own a GLC 230 HAZMAT SUV with a Hydrogen tank and other dangerous items. German hazard lights that do not mirror my driver's manual or the car I purchased. -Hazard lights showing SRS systems malfunctioning - Hazard lights showing projected contact -Two unwanted unknown installations of Mercedesa branded navigation systems have been installed in my car without my permission. This is not over the air updates. I have the serial numbers. Mercedes-Benz has yet to respond to my requests for safety and… Look up ODI 11469867 at NHTSA ↗	45.8% ODI 11487421 Driving slowly through a parking lot and had to stop for pedestrians. When the path was clear, the car would not accelerate. It only idled forward and slowly reached about 5 mph. Stepping on the accelerator pedal gave no response after repeatedly trying to accelerate. No warning lights came on to alert me of a problem. I was able to pull into a parking spot and after shutting off the ignition and turning back on, the throttle responded as normal. This was a very scary situation but at least it happened in a parking lot. Look up ODI 11487421 at NHTSA ↗	1015.2% ODI 11413885 · 90 mi ON APRIL 21, 2021 AT ABOUT 1800 (TIME), LESS THAN 45-HOURS AFTER PURCHASE OF THE NEW 2021 GLC 300 VEHICLE, THE INTERNAL COMBUSTION (ENGINE) MISFIRED AND ABRUPTLY MALFUNCTIONED WHILE IN STEADY ACCELERATION AT 65-MPH. MY FAMILY AND I WERE HEADED EASTBOUND ON THE CA-60 FREEWAY IN LANE THREE (LEFTMOST, FASTEST LANE). AS SOON AS THE ENGINE SPONTANEOUSLY SPUTTERED, IT ABRUPTLY STOPPED AND INTENSELY SHOOK THE ENTIRE CAR VIGOROUSLY, AGGRESSIVELY, AND CONTINUOUSLY WITH NO ABILITY FOR CONTROL NOR FOR THE OPTION TO CONTINUE TO ACCELERATE. THERE WERE THREE… Look up ODI 11413885 at NHTSA ↗	1220.3% ODI 11540317 vehicle was recalled for replacement of fuel pump. NHTSA Recall ID 23V445. Mercedes Benz and authorized dealer are unable to repair car at this time. There is a danger of the car losing power and a risk of crash or injury. Look up ODI 11540317 at NHTSA ↗	59.1% ODI 11538784 While driving on highway at 75 mph, the car began slowing down and an alert on the screen said "Stop. Switch off vehicle". Then the alert on the screen showed that the 48 volt system needed to be recharged. The car would not start and had to be towed to the dealership. The dealership says the car was out of gas, but the gauges did not indicated that the fuel was empty, so they will reset all of the sensors, but they still do not know why the car turned off and could not be restarted. They are checking the software because they cannot find an… Look up ODI 11538784 at NHTSA ↗	00.0% No examples available for this selection.	16.3% ODI 11670954 In July 2023, I entered into a lease agreement for a 2023 Mercedes-Benz GLC 300 4MATIC SUV (VIN: [XXX]). From the outset, the vehicle suffered from recurring mechanical failures. It required service visits on August 10, 2023; March 25, 2024; July 26, 2024; September 20, 2024; and October 7, 2024. The final incident on [XXX], involved a fuel pump failure that caused the vehicle to stall in traffic, placing me in a terrifying situation where another driver, enraged and armed, threatened me while I waited for a tow truck. Mercedes-Benz acknowledge… Look up ODI 11670954 at NHTSA ↗	0Unavailable No examples available for this selection.
Exterior Lighting	11.1% ODI 11219924 · 10,000 mi ELECTRONIC SHIFTIER ISSUE. CAR WILL NOT DO WHAT IS BEING INPUT TO THE SHIFTIER. PARTICULAR ISSUE WHEN GOING FROM PARK TO DRIVE, DRIVE TO REVERSE, OR PARK TO DRIVER OR REVERSE. (NOTE THAT THE PRESSURE ON BRAKE PEDAL HAS ALWAYS SEEMED EXCESSIVE TO ME. HAVE HAD ISSUE WHERE CAR GOES INTO NEUTRAL WHEN TRYING TO PLACE THE SHIFTIER INTO PARK. I HAVE HAD TIMES WHERE CLEARLY THE VEHICLE DOESN'T REGISTER THAT THE BRAKE IS ACTUATED WHEN IT IS. HAVE HAD INSTANCE WHERE VEHICLE STARTS OFF IN DRIVE AND ROLLS UNDER POWER AS IT DIDN'T SHIFT INTO PARK AS IN… Look up ODI 11219924 at NHTSA ↗	00.0% No examples available for this selection.	45.8% ODI 11661143 Entire front right headlight assembly and module failed with no headlight, turn signal, park light etc. There is no visible external damage to the assembly although there is some moisture inside assembly. From internet search, it appears that this is a very common failure. Cost is over $2500 for replacement from local mechanics and over $3300 from Mercedes dealerships with little to no warranty for future failures either. Look up ODI 11661143 at NHTSA ↗	1319.7% ODI 11567054 Vehicle left/front headlight has water condensation and entire headlight doesn't work. Its pretty much not drivable. I brought the vehicle to a manufacturer dealership and they claim that the failure of the headlight is due to physical impact to the exterior of head light. There is a minor scratch barely visible and no cracks or physical damage to the headlight or seal, or car or that matter. When I asked if they performed an inspection due to a recall associated with the headlight (recall # 2022050005), they confirmed that they did not inspect… Look up ODI 11567054 at NHTSA ↗	00.0% No examples available for this selection.	1018.2% ODI 11529864 Sunday, June 25, when I was driving the car on the road, the engine shut off and the car stopped running. 3 warning lights show on screen: engine light; 48v Battery Service Required; 12v Battery service required. I used the break to park the car on the roadside after that. I tried many times to restart the car, Waited over one hour and 40 minutes it finally started again, the engine warning light was still on until the second day morning, and I was able to take pics as evident. 1. What component or system failed or malfunctioned, and is it a… Look up ODI 11529864 at NHTSA ↗	314.3% ODI 11564146 2 SEPERATE ISSUE DIGITAL LIGHTING FAILED, THEN 2ND ISSUE WHICH IS STILL BEING WORKED ON, BEEN A WEEK WITHOUT THE VEHICLE WHICH IS ONLY A MONTH OLD WITH 1100 MILES ON IT, THE ENTITE SYSTEM ISNT WORKING WITH LOTS OF CODE ERROR MESSAGES AND WILL NOT START. THE CURRENT UPDATE FROM MERCEDES IS THEY STARTED A CASE AND TESTING THE VEHICLE AFTER REPLACING THE POWER TRAIN. THE TECHNICIAN AGREED THIS IS NOT NORMAL FOR SUCH A BRAND NEW CAR. I AM CONCERNED FOR MY FAMILYS SAFETY AND THINK THIS IS A LEMON Look up ODI 11564146 at NHTSA ↗	16.3% ODI 11754184 The screen goes blank not only in the middle where the maps, air conditioning and radio is but the screen where the speed gas tank are as well. We have taken the car in at least 5 times stayed the issue and were told there’s no recall yet for the car. I see here that there is. The car was a Richmond Mercedes today the screen went down amd I was told there’s no fix but maybe I could look on the internet. So here I am! Look up ODI 11754184 at NHTSA ↗	0Unavailable No examples available for this selection.
Power Train	78.0% ODI 11075967 · 500 mi WHILE SLOWLY ACCELERATING THE TRANSMISSION MADE A LOUD BANG AND THE CAR SLOWED TO A CRAWL IN THE MIDDLE OF AN INTERSECTION NEARLY CAUSING A MAJOR ACCIDENT, STEERING WAS NEARLY GONE AS WELL WITH NO RESPONSE FROM ACCELERATOR. THE VEHICLE DISPLAY ALSO SAID IT LOST COMMUNICATION WITH THE KEY WHICH WAS IN THE VEHICLE. Look up ODI 11075967 at NHTSA ↗	510.6% ODI 11443463 I was going through drive thru waiting in line, when suddenly the car started to accelerate sharply, I put two feet on the brakes to stop the forward motion of vehicle - could not stop or place in park or neutral. their was ample room from the vehicle in front.. slightly removed feet from brake, suv lunged at vehicle in front kept on lunging then came to a halt...vehicle went back to normal operation. Look up ODI 11443463 at NHTSA ↗	45.8% ODI 11461938 It took a few minutes to be able to completely turn left out of a shopping center while waiting in line. When finally able to turn left, the car stalled into what appeared to be neutral where I had no control to increase speed and was turning very slowly. Oncoming traffic from both ways were coming and luckily stopped on-time. I had to turn off the entire car and restart in the middle of the road in order to be able to drive again. There could've been a massive collision if cars were not paying attention on both sides. Note that the car was NO… Look up ODI 11461938 at NHTSA ↗	46.1% ODI 11559715 This is the 3rd incidence of this issue (July, Oct, Dec), but we have been advised that a software update is not yet available from the manufacturer. In all instances, we were travelling at a normal rate of in-city traffic (30-45 mph) and all of sudden the vehicle will not accelerate above 25 mph regardless of the position of the throttle. My dealer, Mercedes Benz of Tampa, advises that the problem can only be corrected permanently with a "software update" which is not yet available. This is a major safety issue, especially on the highway, a… Look up ODI 11559715 at NHTSA ↗	46.8% ODI 11613083 · 20,370 mi The contact owns a 2022 Mercedes-Benz GLC300. The contact stated while driving 76 MPH, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that the vehicle speed independently decelerated. The contact safely drove the vehicle to the shoulder of the road. The contact stated that a warning light illuminated indicating do not shift the gear, contact the dealer. In addition, the contact stated that the gear shifter seized, and the wheels locked up. The contact stated that the failure occurr… Look up ODI 11613083 at NHTSA ↗	35.5% ODI 11535976 The 2023 GLC300 would not start. The internal alarms kept going off, the push-start/stop would not respond. The vehicle was acting like it was being stolen, this lasted for 75 to 80 minutes. The display said 12V On-Board Electrical System Service Required and Blind Spot Assist Inoperative - over and over again. Couldn't get the key to make car lock or unlock. The car would not turn on, it would not turn off. The alarm message was persistent. Had to call a tow-truck to take it in for service. After 3+ hours the car restarted. Mercedes initiated … Look up ODI 11535976 at NHTSA ↗	523.8% ODI 11566165 Brand new '24 GLC300 4MATIC. Engine light came on with no error message. Brought it in for service. Miscellaneous engine repair states: "Found current code POA7F00 in drivetrain control unit. Followed LI54.10-P-077250. Cleared codes. Drained 48V battery to below 25% SOC. Charged vehicle to 70% SOC. Job complete." Service foreman mentioned that the service performed may not resolve issue. He contacted Mercedes-Benz Engineering and said no fix at this time and no ETA. Left service with no more engine light on. However, it didn't take… Look up ODI 11566165 at NHTSA ↗	00.0% No examples available for this selection.	0Unavailable No examples available for this selection.
Steering	33.4% ODI 11339659 · 8,000 mi TL* THE CONTACT OWNS A 2018 MERCEDES BENZ GLC300. THE CONTACT STATED THAT AT START-UP, THE STEERING CEASED WITH THE POWER STEERING ASSIST WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TOWED TO CRITZ INC MERCEDES-BENZ OF SAVANNAH (7000 ABERCORN ST, SAVANNAH, GA 31406) TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE FAILURE WAS DUE TO AN UNSTATED SOFTWARE FAILURE. THE SOFTWARE WAS UPDATED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 8,000.BFJB Look up ODI 11339659 at NHTSA ↗	00.0% No examples available for this selection.	57.2% ODI 11311725 · 20 mi THE VEHICLE WONDERS WITHIN THE LANE WHEN MERCEDES DISTRONIC DRIVER ASSISTANCE IS ACTIVATED, PARTICULARLY ON GENTLE CURVES AT HIGHWAY SPEEDS. IT WILL HIT LANE BUMPS UNLESS THE DRIVER ACTIVELY STEERS AWAY FROM THE LANE MARKINGS. THE 2020 GLC3004MATIC HAS BEEN DOING THIS SINCE WE PURCHASED IT NEW ON JANUARY 2, 2020. MERCEDES DEALER HAS CHECKED THE VEHICLE AND IS NOW DESCRIBING THE VEHICLES BEHAVIOR AS NORMAL. ACCORDING TO MERCEDES THIS IS A NEW DRIVER ASSISTANCE PACKAGE IN THE 2020 GLC. IT IS A MAJOR SAFETY HAZARD IF THE VEHICLE IS NOT ACTIVELY … Look up ODI 11311725 at NHTSA ↗	00.0% No examples available for this selection.	1423.7% ODI 11445381 When driving at 40 to 60 MPH and hit shallow pot hole or bump in the road the front wheels violently shake and the steering wheel (electric steering) violently vibrates for 5 to 8 seconds. Dealer checked the vehicle and claims there is nothing wrong with it but did turn off the "attention assist" setting from sensitive setting claiming it was the cause. The issue still exists but not as violent. I'm concerned of loosing control of the car/my safety. FYI: never experienced this issue with my previous car (same car two years older ,2020 GLC 300).… Look up ODI 11445381 at NHTSA ↗	23.6% ODI 11538722 This 2023 GLC, a newly redesigned model, has a number of issues. The two most severe are the adaptive speed limit and the lane keeping assist. I had to disable the traffic sign recognition feature because I was on I-95 in Maryland where the posted speed limit was 65. The car abruptly slowed me down to 35 because it saw an exit sign speed limit but I was not on the exit. I was lucky the car behind me didn't hit me. A warning would be good but to brake the vehicle for a speed limit sign seems problematic. The more serious issue is the lane … Look up ODI 11538722 at NHTSA ↗	00.0% No examples available for this selection.	16.3% ODI 11682705 The driver’s seat automatically adjusted while the vehicle was in drive, causing me to lose the ability to reach the pedals and almost resulting in a collision. While driving my 2025 Mercedes-Benz GLC 300 4MATIC with my children in the car, I stopped at a stop sign when the driver’s seat suddenly began adjusting itself backward. My husband also drives this vehicle, and because I had not logged into my driver profile, the car began moving the seat and controls to his saved position, while the car was in drive. The seat moved so far back that I… Look up ODI 11682705 at NHTSA ↗	0Unavailable No examples available for this selection.
Service Brakes	55.7% ODI 11067322 · 1,500 mi I AM HAVING AN ISSUE OF SQUEAKY BRAKE. IT USUALLY HAPPENS IN SNOWING DAY OR DAY AFTER FROM FRONT WHEEL. BUT, IT WOULD HAVE HAPPENED AT SUNNY DAY TOO. IT SOUNDS VERY LOUD, SO ANNOYING. I TOOK MY CAR MERCEDES DEALERSHIP WHERE I LEASED THE CAR. FOR THE FIRST TIME, THEY FIXED. ACCORDING TO THE INVOICE, THE TECHNICIAN FOUND AND CONFIRMED THE ISSUE OF SQUEAKY COMES FROM REAR WHEEL. BUT, IT HAPPENS NOW AT FRONT. IT IS PRETTY MUCH DOUBTFUL ABOUT WHETHER THEY DID GOOD JOB OR NOT. I ATTACH A LINK OF YOUTUBE WHICH I RECORDED THE ISSUE MY SELF. PL… Look up ODI 11067322 at NHTSA ↗	12.1% ODI 11433403 · 10,000 mi The contact owns a 2019 Mercedes Benz GCLCLASS. The contact stated that the brake system failed. The contact stated when driving at 25mph when the brake pedal was engaged the brake pedal went to the floorboard the vehicle crashed a pole and came to stop. there were no warning lights before during or after the failure occurred. The vehicle was towed to a mechanic shop. The vehicle was not repaired. The manufacturer was contacted. The approximate failure mileage was 10,000. Look up ODI 11433403 at NHTSA ↗	34.3% ODI 11299643 · 2,000 mi DRIVING ALONG RANDOM TRAFFIC NO PATTERN, AUTOMATIC BRAKE ASSIST IS TEMPORARILY NOT ACTIVE , BRIGHT YELLOW WORDING, DANGER AUTO BRAKE ASSIST WILL NOT FUNCTION AT THIS TIME. Look up ODI 11299643 at NHTSA ↗	00.0% No examples available for this selection.	46.8% ODI 11699636 I was involved in a severe front-end collision where my vehicle struck another vehicle with significant force. Despite the major impact, the front airbags did NOT deploy. The entire front end of the vehicle was crushed, including destruction of the radiator, damage to engine components, internal structural collapse, and leaking fluids. Based on the severity and direct frontal nature of the crash, airbags should have deployed but did not. As a result of the impact, I sustained a neck and upper shoulder injury and required medical evaluation. Th… Look up ODI 11699636 at NHTSA ↗	59.1% ODI 11547469 2023 Mercedes Benz GLC 300. Several Electrical, Braking, Collision, Check Battery related issues noted. At approximately 500 miles on vehicle battery system began sending critical voltage error messages to notification app after the vehicle had been turned off. --Owner recharged battery on front terminals. At various intervals, check engine light would come on while driving, sometimes for days at a time. Sometimes for less than an hour, sometimes for a day or so but not long enough to get into a MB Dealer.---MB has less than 5,000 Miles. … Look up ODI 11547469 at NHTSA ↗	314.3% ODI 11555404 After giving a pressure to the brakes, the car feels like the brakes are being slipped towards the end, so I have to hold the brakes hard at the end. I have tried different models of Mercedes such as E class but the brake of E class works exactly opposite from GLC 300. When I give a pressure to E class, first it will stop slowly and towards the end, it will stop more aggressively. When I drive GLC 300 on highway, I had to make several sudden stops because I couldn't estimate the brake range. I made several different people to drive my car, and … Look up ODI 11555404 at NHTSA ↗	212.5% ODI 11684967 The brakes did not function at all. Upon trying to brake, the brake pedal was hard and the car would not stop. The car went into s storefront where the cashier is located and could have resulted in serious injury or death to anyone waiting to pay at the store. The forward collision alarm did not sound, the dashboard indicator for an impending forward collision did not illuminated. The car did not slow down or stop to avoid the collision. The car is currently at the body shop. Look up ODI 11684967 at NHTSA ↗	0Unavailable No examples available for this selection.

Darker cells indicate a larger share of submitted complaints. Components overlap. This measures complaint composition, not failure probability.

Failure mileage by component

Median and middle 50% of usable owner-reported mileages. Ranges require at least five records.

Component failure mileage distribution
Component	Mileage range (25th–75th percentile)	Median	Usable records	Examples
Engine	755–29,000 mi	9,200 mi	15	ODI 11094094 · 1,110 mi TL* THE CONTACT OWNED A 2018 MERCEDES-BENZ GLC300. WHILE DRIVING 55 MPH, THE REAR DRIVER'S SIDE TIRE WAS PUNCTURED. THE CONTACT STATED THAT THE VEHICLE WAS EQUIPPED WITH 18 INCH RUN FLAT TIRES. THE CONTACT PULLED THE VEHICLE OVER TO THE SIDE OF THE ROAD. AFTER WAITING APPROXIMATELY 70 MINUTES ON THE SIDE OF THE ROAD, THE TIRE BURST INTO FLAMES. THE CONTACT WAS UNABLE TO PROVIDE THE TIRE MANUFACTURER, TIRE LINE, COMPLETE TIRE SIZE, OR DOT NUMBER. THE CONTACT STATED THAT THE FIRE ORIGINATED IN THE WHEEL WELL OF THE VEHICLE AND WAS NOT NECESSARILY… Look up ODI 11094094 at NHTSA ↗ ODI 11140717 · 6,000 mi 'THE FIRST INCIDENT - OCCURRED IN AUGUST WHEN I STOPPED AT A STOP-LIGHT. I STARTED DRIVING WHEN THE LIGHT TURNED GREEN AND THE CAR WAS ACCELERATING AS NORMAL. THERE WERE CARS BEHIND ME ACCELERATING AS WELL AS NORMAL. MY SUV AUTOMATICALLY SHIFTED FROM DRIVE TO NEUTRAL BY ITSELF AS I CONTINUE TO ACCELERATE TO MOVE WITH THE NORMAL FLOW OF TRAFFIC. THE VEHICLE AUTOMATICALLY SLOWED DOWN TO NEUTRAL '2ND INCIDENT - THE SAME ISSUE OCCURRED AGAIN WITHIN TWO WEEKS I WAS DRIVING ON THE LONG ISLAND EXPRESSWAY AT APPROXIMATELY 40 MILES PER HOUR IN HEAVY TR… Look up ODI 11140717 at NHTSA ↗ ODI 11556012 · 9,200 mi The contact owns a 2018 Mercedes-Benz GLC300. The contact stated that while driving 65 MPH, the vehicle started to hesitate while depressing the accelerator pedal. The contact stated that the vehicle also started shaking and vibrating with the check engine warning light illuminated. The contact managed to pull the vehicle off the highway and had the vehicle towed to a dealer. The vehicle remained in the dealer's possession for several weeks before the contact was informed that it was discovered that the piston rings were burned and that the cyl… Look up ODI 11556012 at NHTSA ↗
Electrical System	2,687–11,000 mi	6,124 mi	15	ODI 11113400 · 6,124 mi TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ GLC300. THE CONTACT STATED THAT THE VEHICLE DOORS AUTOMATICALLY LOCKED WITH THE KEYS INSIDE OR OUTSIDE OF THE VEHICLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF ALEXANDRIA (200 S PICKETT ST, ALEXANDRIA, VA 22304, [phone removed]) FOR DIAGNOSTIC TESTING AND REPAIRS. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE VIA EMAIL. THE FAILURE MILEAGE WAS 6,124. THE VIN WAS NOT AVAILABLE. Look up ODI 11113400 at NHTSA ↗ ODI 11140717 · 6,000 mi 'THE FIRST INCIDENT - OCCURRED IN AUGUST WHEN I STOPPED AT A STOP-LIGHT. I STARTED DRIVING WHEN THE LIGHT TURNED GREEN AND THE CAR WAS ACCELERATING AS NORMAL. THERE WERE CARS BEHIND ME ACCELERATING AS WELL AS NORMAL. MY SUV AUTOMATICALLY SHIFTED FROM DRIVE TO NEUTRAL BY ITSELF AS I CONTINUE TO ACCELERATE TO MOVE WITH THE NORMAL FLOW OF TRAFFIC. THE VEHICLE AUTOMATICALLY SLOWED DOWN TO NEUTRAL '2ND INCIDENT - THE SAME ISSUE OCCURRED AGAIN WITHIN TWO WEEKS I WAS DRIVING ON THE LONG ISLAND EXPRESSWAY AT APPROXIMATELY 40 MILES PER HOUR IN HEAVY TR… Look up ODI 11140717 at NHTSA ↗ ODI 11144554 · 3,200 mi THE STEERING COLUMN STALK CONTROLS DRIVE, REVERSE, NEUTRAL AND PARKING. I STOPPED THE VEHICLE ON AN INCLINE IN A PARKING LOT. I HAD MY FOOT ON THE BRAKE. I SHIFTED INTO NEUTRAL. THE ENGINE WAS STILL RUNNING. I THOUGHT I PUSHED THE PARK BUTTON BUT THE CAR ROLLED BACK INTO ANOTHER VEHICLE. Look up ODI 11144554 at NHTSA ↗
Unknown Or Other	292–7,125 mi	1,750 mi	8	ODI 11066706 · 20 mi MY HEEL GOT STUCK WHEN PRESSING THE GAS PEDAL CREATING A SAFETY HAZARD. MY SHOE WAS STUCK AND I HAD TO DRIVE BAREFOOT. I TOOK IT TO THE MERCEDES CALABASAS DEALERSHIP AND THEY SAID THERE WAS NOTHING THEY COULD DO AND I SHOULD NOT WEAR HEELS WHEN DRIVING. I HAVE DRIVEN FOR OVER 30 YEARS WITH NO ISSUES. Look up ODI 11066706 at NHTSA ↗ ODI 11071995 · 200 mi MY WORK HEELS GOT STUCK BETWEEN THE CARPET AND GAS PEDAL CREATING A DRIVING HAZARD. THERE IS A GAP THAT IS DANGEROUS AND AFTER NOTIFYING THE DEALER AND MB, THEY SAID THAT I SHOULD NOT WEAR WORK HEELS. I AM A PROFESSIONAL WOMAN AND WEAR BUSINESS SHOES. THE HEEL GOT STUCK CAUSING ME TO DRIVE WITH NO SHOES ON THE FREEWAY. Look up ODI 11071995 at NHTSA ↗ ODI 11163043 · 10,500 mi WAS DRIVING DOWN HIGHWAY DURING CLEAR SUNNY DAY ON 12/21/18 AT ABOUT 2:30 PM ON I-10 EAST JUST OUTSIDE OF HOUSTON WHEN MY SUNROOF SUDDENLY EXPLODED OUTWARD. NO SIGNS OF ANY DEBRIS BEING FLUNG UP OR STRIKING SUNROOF AND THERE WERE NO VEHICLES CLOSE TO US AT THE TIME. Look up ODI 11163043 at NHTSA ↗
Fuel/Propulsion System	Too few reports for a range	7,245 mi	2 (sparse)	ODI 11166030 · 14,400 mi I WAS WAITING AT A RED TRAFFIC SIGNAL ON ROUTE 7 IN LEESBURG, VA AND THE VEHICLE WAS IN ECO MODE WITH AUTO STOP ENGAGED. WHEN THE LIGHT CHANGED TO GREEN I DEPRESSED THE ACCELERATOR AND THE CAR IMMEDIATELY SHUT OFF AND THE GAUGES ON THE DASH ALL LIT. IT TOOK ME THREE ATTEMPTS BUT IT FINALLY RESTARTED. Look up ODI 11166030 at NHTSA ↗ ODI 11413885 · 90 mi ON APRIL 21, 2021 AT ABOUT 1800 (TIME), LESS THAN 45-HOURS AFTER PURCHASE OF THE NEW 2021 GLC 300 VEHICLE, THE INTERNAL COMBUSTION (ENGINE) MISFIRED AND ABRUPTLY MALFUNCTIONED WHILE IN STEADY ACCELERATION AT 65-MPH. MY FAMILY AND I WERE HEADED EASTBOUND ON THE CA-60 FREEWAY IN LANE THREE (LEFTMOST, FASTEST LANE). AS SOON AS THE ENGINE SPONTANEOUSLY SPUTTERED, IT ABRUPTLY STOPPED AND INTENSELY SHOOK THE ENTIRE CAR VIGOROUSLY, AGGRESSIVELY, AND CONTINUOUSLY WITH NO ABILITY FOR CONTROL NOR FOR THE OPTION TO CONTINUE TO ACCELERATE. THERE WERE THREE… Look up ODI 11413885 at NHTSA ↗
Exterior Lighting	Too few reports for a range	41,000 mi	3 (sparse)	ODI 11219924 · 10,000 mi ELECTRONIC SHIFTIER ISSUE. CAR WILL NOT DO WHAT IS BEING INPUT TO THE SHIFTIER. PARTICULAR ISSUE WHEN GOING FROM PARK TO DRIVE, DRIVE TO REVERSE, OR PARK TO DRIVER OR REVERSE. (NOTE THAT THE PRESSURE ON BRAKE PEDAL HAS ALWAYS SEEMED EXCESSIVE TO ME. HAVE HAD ISSUE WHERE CAR GOES INTO NEUTRAL WHEN TRYING TO PLACE THE SHIFTIER INTO PARK. I HAVE HAD TIMES WHERE CLEARLY THE VEHICLE DOESN'T REGISTER THAT THE BRAKE IS ACTUATED WHEN IT IS. HAVE HAD INSTANCE WHERE VEHICLE STARTS OFF IN DRIVE AND ROLLS UNDER POWER AS IT DIDN'T SHIFT INTO PARK AS IN… Look up ODI 11219924 at NHTSA ↗ ODI 11656755 · 92,700 mi The contact owns a 2021 Mercedes-Benz GLC300. The contact stated that there was condensation inside the front passenger’s side headlight housing after it had rained. The contact then stated that while driving at night, the passenger’s side headlight failed to operate as needed. There was no warning light illuminated. The dealer was notified of the failure, and the contact was informed that the vehicle was not included in NHTSA Campaign Number: 22V261000 (Exterior Lighting); and the contact was provided an estimate for the repair. The vehicle wa… Look up ODI 11656755 at NHTSA ↗ ODI 11710686 · 41,000 mi The contact owns a 2021 Mercedes-Benz GLC300. The contact stated that the passenger’s side headlight was developing fog, causing the light to be dim. The vehicle was taken to the dealer, who diagnosed the vehicle and determined that the headlight needed to be replaced. The vehicle was not repaired. The contact learned of NHTSA Campaign Number: 22V261000 (Exterior Lighting); however, the VIN was not included. The manufacturer was informed of the failure and confirmed that the VIN was not included in the recall. The manufacturer referred the cont… Look up ODI 11710686 at NHTSA ↗
Power Train	8,300–60,875 mi	35,945 mi	8	ODI 11075967 · 500 mi WHILE SLOWLY ACCELERATING THE TRANSMISSION MADE A LOUD BANG AND THE CAR SLOWED TO A CRAWL IN THE MIDDLE OF AN INTERSECTION NEARLY CAUSING A MAJOR ACCIDENT, STEERING WAS NEARLY GONE AS WELL WITH NO RESPONSE FROM ACCELERATOR. THE VEHICLE DISPLAY ALSO SAID IT LOST COMMUNICATION WITH THE KEY WHICH WAS IN THE VEHICLE. Look up ODI 11075967 at NHTSA ↗ ODI 11144554 · 3,200 mi THE STEERING COLUMN STALK CONTROLS DRIVE, REVERSE, NEUTRAL AND PARKING. I STOPPED THE VEHICLE ON AN INCLINE IN A PARKING LOT. I HAD MY FOOT ON THE BRAKE. I SHIFTED INTO NEUTRAL. THE ENGINE WAS STILL RUNNING. I THOUGHT I PUSHED THE PARK BUTTON BUT THE CAR ROLLED BACK INTO ANOTHER VEHICLE. Look up ODI 11144554 at NHTSA ↗ ODI 11219924 · 10,000 mi ELECTRONIC SHIFTIER ISSUE. CAR WILL NOT DO WHAT IS BEING INPUT TO THE SHIFTIER. PARTICULAR ISSUE WHEN GOING FROM PARK TO DRIVE, DRIVE TO REVERSE, OR PARK TO DRIVER OR REVERSE. (NOTE THAT THE PRESSURE ON BRAKE PEDAL HAS ALWAYS SEEMED EXCESSIVE TO ME. HAVE HAD ISSUE WHERE CAR GOES INTO NEUTRAL WHEN TRYING TO PLACE THE SHIFTIER INTO PARK. I HAVE HAD TIMES WHERE CLEARLY THE VEHICLE DOESN'T REGISTER THAT THE BRAKE IS ACTUATED WHEN IT IS. HAVE HAD INSTANCE WHERE VEHICLE STARTS OFF IN DRIVE AND ROLLS UNDER POWER AS IT DIDN'T SHIFT INTO PARK AS IN… Look up ODI 11219924 at NHTSA ↗
Steering	5,807–49,025 mi	7,000 mi	6	ODI 11339659 · 8,000 mi TL* THE CONTACT OWNS A 2018 MERCEDES BENZ GLC300. THE CONTACT STATED THAT AT START-UP, THE STEERING CEASED WITH THE POWER STEERING ASSIST WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TOWED TO CRITZ INC MERCEDES-BENZ OF SAVANNAH (7000 ABERCORN ST, SAVANNAH, GA 31406) TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE FAILURE WAS DUE TO AN UNSTATED SOFTWARE FAILURE. THE SOFTWARE WAS UPDATED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 8,000.BFJB Look up ODI 11339659 at NHTSA ↗ ODI 11560725 · 70,000 mi The contact owns a 2018 Mercedes-Benz GLC300. The contact stated that while driving at various speeds, the steering wheel malfunctioned, and became difficult to turn in either direction. The vehicle was taken to the local dealer who diagnosed that the electronic power steering module was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was offered. The approximate failure mileage was 70,000. Look up ODI 11560725 at NHTSA ↗ ODI 11635080 · 62,700 mi The contact owns a 2018 Mercedes Benz GLC 300. The contact stated while attempting to park, a loud clanking noise was coming from the steering wheel as the air bag warning light illuminated. The vehicle was taken to the dealer where it was diagnosed that the clock spring in the steering wheel which caused the steering wheel to fail and the steering module needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and referred the contact to the NHSTA Hotline for assistance. The approximate failure mileag… Look up ODI 11635080 at NHTSA ↗
Service Brakes	2,375–21,250 mi	8,390 mi	8	ODI 11067322 · 1,500 mi I AM HAVING AN ISSUE OF SQUEAKY BRAKE. IT USUALLY HAPPENS IN SNOWING DAY OR DAY AFTER FROM FRONT WHEEL. BUT, IT WOULD HAVE HAPPENED AT SUNNY DAY TOO. IT SOUNDS VERY LOUD, SO ANNOYING. I TOOK MY CAR MERCEDES DEALERSHIP WHERE I LEASED THE CAR. FOR THE FIRST TIME, THEY FIXED. ACCORDING TO THE INVOICE, THE TECHNICIAN FOUND AND CONFIRMED THE ISSUE OF SQUEAKY COMES FROM REAR WHEEL. BUT, IT HAPPENS NOW AT FRONT. IT IS PRETTY MUCH DOUBTFUL ABOUT WHETHER THEY DID GOOD JOB OR NOT. I ATTACH A LINK OF YOUTUBE WHICH I RECORDED THE ISSUE MY SELF. PL… Look up ODI 11067322 at NHTSA ↗ ODI 11096619 · 22,000 mi BREAKS CONTINUALLY SQUEAK IN REVERSE ON COLDER MORNINGS AT SLOW SPEEDS. EVEN IF THE CAR WARMS UP FOR SEVERAL MINUTES, THE LOUD SQUEAKING DOES NOT STOP. Look up ODI 11096619 at NHTSA ↗ ODI 11157119 · 2,500 mi THE BRAKES SQUEAL VERY LOUD AND I AM CONSTANTLY HAVING TO BRAKE HARD SEVERAL TIMES TO MAKE THIS NOISE TEMPORARILY GO AWAY. I HAVE TAKEN IT TO MERCEDES AND THEY SAY THAT THIS IS NOT UNDER WARRANTY. I TOOK THE SUV ONCE EARLY ON AFTER THE CAR WAS PURCHASED. THE DEALER TOLD ME TO BRAKE HARD A FEW TIMES AND THIS WOULD GO AWAY. IT DIDN'T I TOOK THE CAR THREE TIMES TO THE DEALER UNTIL FINALLY THEY REPLACED THE REAR BRAKE PADS BUT TRIED TO CHARGE ME FOR IT. THE BRAKES CONTINUED TO SQUEAL. I TOOK IT TO AND INDEPENDENT GARAGE TO HAVE THE PADS REPLACED AT… Look up ODI 11157119 at NHTSA ↗

Complaint and recall timeline

Explore monthly filing activity alongside recall announcements. Up to ten years of monthly history is available.

ComponentPeriod

Solid line: filed complaints. Dashed amber lines: recall announcement dates for this vehicle selection; markers include all recall components. The latest month is partial. Temporal proximity does not establish causation.

Monthly counts, recall campaigns and complaint examples

Monthly complaint and recall timeline
Month	Complaints	Campaigns announced	Examples
2024-10	10	24V808000	ODI 11621613 Transmissiongoes into neutral while driving car at times. sometimes it will not go back into gear No movement of car on freeway potential of being hit from behind. problem reproduced, inspected by independent shop not inspected no lights Look up ODI 11621613 at NHTSA ↗ ODI 11618779 Sunroof exploded while I was driving. No other cars around me, pretty day, not a very hot day. I’m driving along and suddenly hear a loud POP that sounded like a shotgun going off! I swerved, but thankfully did not leave the road. Shattered glass was contained in the cover of the sunroof as I didn’t have it open at the time. A huge hole is in my roof of my car! I called the dealership who said it was not covered under any warranty although I just got the vehicle in Feb of this year. He said I would have to contact corporate. I contacted corpora… Look up ODI 11618779 at NHTSA ↗ ODI 11618239 SRS malfunction warning displayed on vehicles dashboard. Vehicle was diagnosed and displayed code B009749 Indicating: the crash sensor on the right hand side has a malfunction. There is an internal electrical fault. Look up ODI 11618239 at NHTSA ↗
2024-11	6	24V862000	ODI 11623992 · 30,000 mi The contact owns a 2020 Mercedes-Benz GLC300. The contact stated that while operating the vehicle, the air bag warning light remained illuminated, indicating that the front passenger’s side seat air bag was inoperable. The cause of the failure was not yet determined. The local dealer and manufacturer were notified of the failure, but no assistance was offered. The failure mileage was approximately 30,000. Look up ODI 11623992 at NHTSA ↗ ODI 11626183 My headlight is absorbing moisture & causing my light to have a shortage. Look up ODI 11626183 at NHTSA ↗ ODI 11627113 My vehicle suddenly starting getting moisture in the passenger side head light.Many people brought this my attention.After some time of moisture the head light begin to flicker on and off while I was driving.Then it just went out and stopped working.Eventually I took it to the dealer and they informed me that my vehicle didn't have a recall for this issue.As I search the Internet I found that lots of other customers experienced this same exact issue.I called Mercedes USA and they informed me to present the issue to you all. Thank You in advance… Look up ODI 11627113 at NHTSA ↗
2024-12	9	None	ODI 11630856 I have engine light on and when I scanned it, I got a error code P052E For crankcase vent valve issues. It is most common problem with Mercedes-Benz Glc . Look up ODI 11630856 at NHTSA ↗ ODI 11632530 Vehicle experienced transmission shifting issue after having driven for a period of 15 - 20 minutes, with engine oil temp reaching above 103/105 degrees C, transmission won't shift into Drive. Automatically pops into Neutral. Other times engine will stall, required complete restart. This creates hazard for operator and cars following behind as driver needed to steer vehicle out of the way of traffic while in Neutral. Independent MB repair shop and dealership scanned vehicle and identified with code P073E code. Dealer upgraded TCM control mo… Look up ODI 11632530 at NHTSA ↗ ODI 11629875 · 40,000 mi The contact owns a 2020 Mercedes-Benz GLC300. The contact stated that while stopped at a red light, the vehicle started shaking and jerking. The check engine warning light was illuminated. The vehicle was taken to a dealer where it was diagnosed that the cylinder head needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 40,000. Look up ODI 11629875 at NHTSA ↗
2025-01	6	None	ODI 11635080 · 62,700 mi The contact owns a 2018 Mercedes Benz GLC 300. The contact stated while attempting to park, a loud clanking noise was coming from the steering wheel as the air bag warning light illuminated. The vehicle was taken to the dealer where it was diagnosed that the clock spring in the steering wheel which caused the steering wheel to fail and the steering module needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and referred the contact to the NHSTA Hotline for assistance. The approximate failure mileag… Look up ODI 11635080 at NHTSA ↗ ODI 11635665 Car was running rough so I took it to the mercedes benz dealer they diagnosed the problem as cylinder 1 misfire and and cylinder head needed to to be replaced which I did $5500 dollars later this is a common problem and Mercedex Benz needs to recall the engine and reimburse me Look up ODI 11635665 at NHTSA ↗ ODI 11633770 Safety was at risk when the gears switched to neutral while I was driving in car with my children. A recall was completed when bought car was not aware of fuel pumps recall issue. Says completed repair but the car is still having issues and was sold to me without telling me about the recall. First appeared about a week ago. Making a ticking noise, losing power when accelerating. Look up ODI 11633770 at NHTSA ↗
2025-02	5	None	ODI 11641513 The component that failed was the right front differential. My safety and the safety of others was put at high risk as I was driving at 60 mph on the highway and my vehicle suddenly and abruptly reduced speed to about 15mph without any warning. This created an extremely dangerous and potentially hazardous situation as I tried to maneuver my car at this very low speed on the highway in the middle lane safely to the side of the highway. Cars around me quickly maneuvered around me in attempts to avoid my slow moving vehicle and not hit me. The en… Look up ODI 11641513 at NHTSA ↗ ODI 11640706 The check engine light illuminated, I took the car to the dealer I bought. They said the cylinder head on the engine needs to be replaced, when I check the internet it seems it is a known issue for Mercedes X253 but there is not a recall program. I bought the car from the dealer, and put on 5k miles in a year. Look up ODI 11640706 at NHTSA ↗ ODI 11641925 While slowly backing out of the driveway and without contacting anything at all, the rear window completely shattered. The window has never been hit by anything and had no defects yet it completely shattered so clearly reflects a manufacturing defect of some sort that is incredibly dangerous to passengers or other vehicles, since it happens without warning and without the necessity of an impact of any kind. Look up ODI 11641925 at NHTSA ↗
2025-03	10	None	ODI 11648715 I was backing out of my driveway and was putting the car in Drive when the airbag located in my steering wheel deployed without a reason. The car has not been inspected by anyone as of today. I was told there was a warning but that it was not of immediate attention in November of 2024. Look up ODI 11648715 at NHTSA ↗ ODI 11650016 Faulty Positive Crankcase Ventilation Valve. Seems a very common failure which causes poor emissions and potentially further engine damage. Look up ODI 11650016 at NHTSA ↗ ODI 11651058 Dear Sirs: I own a 2020 GLC300W Mercedes SUV. As of this date, It has stalled 5 times while driving on the highway and on the roads within an 8 month period. Throughout this period, I have taken the vehicle to the Mercedes dealership in Riverside, CA three times to have this inspected. After their first inspection, the dealership claimed that the problem was due to a recall on a computer software update needed. However, the vehicle stalled two more times while driving on the highway. After the second inspection, the dealership claimed the prob… Look up ODI 11651058 at NHTSA ↗
2025-04	6	None	ODI 11653722 The check engine light was on. There is a problem with the oil pump valve of the engine. The problem has been confirmed by a dealer and an independent mechanic. Look up ODI 11653722 at NHTSA ↗ ODI 11656070 · 35,886 mi The contact owns a 2020 Mercedes-Benz GLC300. The contact stated while attempting to reverse, the back over prevention camera displayed a blank screen. The vehicle was not taken to an independent mechanic or dealer to be diagnosed. The contact stated that the failure had occurred on several occasions. The vehicle was repaired. The manufacturer was notified of the failure, and informed the contact that the VIN was not under recall for the failure. The contact related the failure to NHTSA Campaign Number: 22V232000 (BACK OVER PREVENTION); however… Look up ODI 11656070 at NHTSA ↗ ODI 11657175 Some M264 Engines are predisposition to premature cylinder head failure, this issue can cause significant misfire issues. It also leads to a costly repair. We experienced issues with a P219D code , we had the coils and plugs replaced on a 2020 GLC 300 with 38.5 k miles. We assumed that this issues with a misfire and check engine light were corrected. My wife was turning onto [XXX] in Pascagoula MS last week, the car misfired and stalled with cars and semi trucks rapidly approaching, several cars had to slam on breaks and this issues al… Look up ODI 11657175 at NHTSA ↗
2025-05	3	25V255000	ODI 11661143 Entire front right headlight assembly and module failed with no headlight, turn signal, park light etc. There is no visible external damage to the assembly although there is some moisture inside assembly. From internet search, it appears that this is a very common failure. Cost is over $2500 for replacement from local mechanics and over $3300 from Mercedes dealerships with little to no warranty for future failures either. Look up ODI 11661143 at NHTSA ↗ ODI 11660968 Our 2021 Mercedes is 4 years old and had the engine light come on. The vehicle has always been maintenance by Mercedes and well taken care of. The engine had a Cylinder Head Failure which resulted in a $7600 repair for a 4 year old vehicle. Mercedes refused to offer a good will repair. This is A major issue reported in 2015–2016 M274 engine which can lead to catastrophic engine failure 1. These failures often result in loss of power, strange engine noises, and in severe cases, engine seizure. The damage can extend to the cylinder head, especia… Look up ODI 11660968 at NHTSA ↗ ODI 11661749 In September 2024 my vehicle's engine light came off and the car was struggling to accelerate, especially in highway. I took it to Mercedes Benz of Cincinnati and they acknowledged the fault, made some repairs (under warranty) but the mechanic told us he had already seen quite a few of these cars needing the engine to be replaced. The problem keep coming back and took in in May 2025 (4 months after warranty expired) with the same exact issue. Now they said it is a cylinder head that needs replacement and that it will cost me $10K. This pr… Look up ODI 11661749 at NHTSA ↗
2025-06	8	25V365000, 25V379000	ODI 11666424 On May 22, 2025, while parked, my 2019 Mercedes-Benz GLC300 spontaneously caught fire, completely destroying the vehicle. Thankfully, no one was inside, and no injuries occurred, but the property damage was significant. I later discovered Recall 21V961000 / Campaign 2022030003 affecting some 2019 GLC300s for fuel leaks at the fuel rail/injector interface, which pose a serious fire hazard. Further research has shown reports of loose ground connections in these vehicles as well, increasing the risk of sparks igniting leaked fuel. Given that my … Look up ODI 11666424 at NHTSA ↗ ODI 11666765 - My transmission is malfunctioning. It is available for inspection. - My car is not allowing me to shift from reverse to drive. When I try to put it in drive, it gets stuck in neutral. My safety is at risk as I was trying to do a quick 3-point turn and got stuck in the lane. - Yes, the problem has been confirmed by an independent service center. There was a recall by Mercedes Benz for the same issue in 2020, but for some reason my car isn't included. - The vehicle has been inspected by an independent service center - No warning lamps or mes… Look up ODI 11666765 at NHTSA ↗ ODI 11665281 •Jan 2025, while the car owner was driving her GLC300, a warning light came on, the car shook and then shut down. AAA tow truck suggested Green’s Garage as an approved nearby repair shop. Car was towed there and repaired for approximately $450.00. •[XXX], late afternoon, the same problem arose but the car did not shut down. The car owner drove the car home and the car was dropped off at Green's Garage (GG) on the morning of May 27. Late that afternoon, GG called us to tell us the problem is not related to the January repair…Even though the symp… Look up ODI 11665281 at NHTSA ↗
2025-07	6	None	ODI 11676731 The car does not go into drive from reverse and will sometime automatically shift itself from a low drive gear (D1) into Neutral without warning. After this happens - the car also can't get back into D1. It takes about 20 seconds for the car to shift back into a Drive gear and it will jolt into D3 violently. This has been a scary experience on many occassions - especially at red lights when this happens and we can't get the car out of neutral for some time. This was diagnosed by mercedes dealership near us as a fawlty sensor in the transmissi… Look up ODI 11676731 at NHTSA ↗ ODI 11672995 FIRE! NHTSA Vehicle Safety Complaint – Mercedes-Benz GLC300 Complainant Information: [XXX] [XXX] Phone: [XXX] Email: [XXX] Vehicle Information: 2019 Mercedes-Benz GLC300 4MATIC VIN: [XXX] Purchase Location: Missouri Incident Location: St. Louis, MO Date of Incident: [XXX] Date of Report Submission: July 12, 2025 Summary of Incident: On [XXX] , my 2019 Mercedes-Benz GLC300 4MATIC spontaneously caught fire while parked. I immediately contacted Mercedes-Benz Roadside Assistance, and the vehicle was towed for inspection. Mercedes-Benz late… Look up ODI 11672995 at NHTSA ↗ ODI 11676892 While driving on Route 95 the Front Stationary Sunroof Panel separated and flew off Look up ODI 11676892 at NHTSA ↗
2025-08	12	25V533000	ODI 11680717 · 63,500 mi The contact owns a 2019 Mercedes-Benz GLC300. The contact stated that while stopped at a stoplight on a hill, the vehicle rolled backwards. The contact stated that the brake pedal was depressed to stop the vehicle from rolling backwards, preventing the vehicle from hitting the vehicle behind. The contact stated that the failure had occurred several times. The vehicle was taken to the dealer; however, the failure was not duplicated. The contact was informed that rolling backwards was normal. The manufacturer was not made aware of the failure. Th… Look up ODI 11680717 at NHTSA ↗ ODI 11680728 · 30,000 mi The contact owns a 2019 Mercedes-Benz GLC 300. The contact stated that while driving 60 MPH, there was an abnormal cracking sound coming from the roof. The contact stated that upon arriving to the destination and parking the vehicle, the contact became aware that the panoramic roof panel had detached. The dealer was notified of the failure. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Numbers: 23V854000 (Structure) and 21V197000 (Structure). The manufacturer was notified of the failure and informed the contact… Look up ODI 11680728 at NHTSA ↗ ODI 11682374 · 48,000 mi The contact owned a 2019 Mercedes-Benz GLC 300. The contact stated that while driving at 15 MPH up and down the street on the fourth trip, the vehicle pulled to the left and suddenly accelerated, traveled over the curb, went through a sign on a pole, vegetation, and crashed into a concrete planter box. There were no warning lights illuminated. The air bag deployed. The contact sustained bruises on her knees and hands. Medical attention was provided at the hospital. The paramedics, the police department, and the fire department were on the scene… Look up ODI 11682374 at NHTSA ↗
2025-09	6	None	ODI 11687525 While pulling into a parking spot with my foot hovering above/on the break, the car lurched forward as if someone had floored the gas pedal. As my foot was already on the break, I slammed down onto the break and the car came to a stop, several feet ahead of the top of the parking spot, and into the woods. I called roadside assistance for the vehicle to be towed to the dealership for repair, as I did not find it safe to drive it. The dealership was unable to replicate the issue, but they told me that due to the severity of the issue, they weren'… Look up ODI 11687525 at NHTSA ↗ ODI 11689240 On August 15, 2025, I was driving my Mercedes-Benz GLC 300 4MATIC on the freeway under normal conditions. Without any warning lights, error messages, or prior signs of mechanical issues, the vehicle suddenly and completely lost power. The accelerator pedal became unresponsive and felt locked, and the vehicle came to an abrupt stop in the middle of an active freeway, in the second lane from the left. I had no ability to control or prevent the stoppage. This unexpected power loss directly led to a rear-end collision. The vehicle behind me sustai… Look up ODI 11689240 at NHTSA ↗ ODI 11688954 Check engine light came on. Code was P219D mixture formation is irregular on cylinder 2. Informed today, the cylinder will need to be replaced entirely for about $10,000. Concerned that although this did not happen to me, others have stated the vehicle completely stalls while driving. Look up ODI 11688954 at NHTSA ↗
2025-10	11	None	ODI 11692479 The engine is failing, I was on my way to drop my [XXX] off at daycare when suddenly my car went above and stayed above 5rpms meanwhile I was only able to drive 8mph. This caused a tractor trailer swerving into on coming traffic, if he didn’t my toddler and I would have been killed. As I managed to pull off and call my husband to get the baby the engine started making a strange clicking noise. There’s maybe 60,000 miles on this vehicle none of this should be happening. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.… Look up ODI 11692479 at NHTSA ↗ ODI 11693266 Problem (repeat failure / prior warranty replacement): This vehicle has a recurring headlamp defect involving moisture ingress into the headlamp housing/connectors, causing electrical shorting and warning messages, with risk of headlight failure. Mercedes-Benz replaced this same headlamp under warranty in 2021 for the identical issue (moisture/shorting). The defect has recurred on the same vehicle.Recent verification: On Oct 13, 2025, the dealer (Mercedes-Benz of North Palm Beach) observed visible condensation/fogging in the lamp and confirmed … Look up ODI 11693266 at NHTSA ↗ ODI 11694592 I am the owner of a 2020 Mercedes-Benz GLC300 with the M264 engine. I am hoping that you can assist me with a widely reported, systemic defect: the premature failure of the master cylinder, regardless of vehicle mileage. This issue is extensively documented by numerous owners of the 2020 and 2021 GLC300 models across various public forums, including Reddit and dedicated GLC owner communities. I took my vehicle to Mercedes dealearship for annual service and an intermittent check engine light. The dealership informed me it was a spark plug issue.… Look up ODI 11694592 at NHTSA ↗
2025-11	8	None	ODI 11698021 I had the engine light come on and took it to the dealership. They quoted me over 8 thousand dollars to fix. I took it to a repair shop that works on luxury cars and they fixed it for less than 1000 dollars. I had to have the transducer fixed in the turbo in my engine and when they did that they found oil in the electrical harness. That was caused by the oil seperator. They told me that it was a manufacture defect that has been well documented and to take it back to Mercedees Benz. They looked and found the oil but said my car did not produc… Look up ODI 11698021 at NHTSA ↗ ODI 11698503 · 60,000 mi The contact owns a 2018 Mercedes-Benz GLC300. The contact stated that while operating the vehicle, the message "Front Air Bag Malfunction" was displayed, and the horn became inoperable. The vehicle was taken to the local dealer who diagnosed that the steering column and air bag clock spring were faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure and informed the contact that the VIN was not included in NHTSA Campaign Number: 17V627000 (AIR BAGS). The contact stated that the vehicle h… Look up ODI 11698503 at NHTSA ↗ ODI 11699931 I have P052E71 error code. It’s a crankcase ventilation malfunction. Seems to be a common issue reported widely online on various forums. Mercedes should place a recall on this. The car has 55k miles on it. Look up ODI 11699931 at NHTSA ↗
2025-12	8	None	ODI 11702561 · 90,000 mi The contact owns a 2018 Mercedes-Benz GLC300. The contact stated that while driving at various speeds, the vehicle shifted into gear initially without warning. The contact stated that while stopped at a light, the vehicle shut off with the "Transmission Malfunction Stop" message displayed on the instrument panel. The contact was unable to move the vehicle, and the vehicle was towed to an independent mechanic. The mechanic ran a diagnostic test on the vehicle and initially stated that the front drive wheel sensor was defective; however, the cont… Look up ODI 11702561 at NHTSA ↗ ODI 11708077 The contact's friend owns a 2018 Mercedes-Benz GLC 300. The contact stated that while the owner was driving at an undisclosed speed, the accelerator pedal was depressed, but the vehicle failed to accelerate as intended, and the gear shifter independently shifted to neutral(N). No warning lights were illuminated. In addition, the contact stated that the failure was persistent. The contact stated that the owner forced the gear shifter out of neutral(N). The vehicle was taken to the dealer, where it was diagnosed that the transmission control unit… Look up ODI 11708077 at NHTSA ↗ ODI 11702836 My 2020 Mercedes-Benz GLC 300 experienced a complete engine failure at ~51,000 miles, shortly after a major repair for a known defect. Initially, the vehicle showed a misfire on cylinder #3, which was diagnosed at RBM of Alpharetta as low compression due to valve seat damage, matching MB TSB LI01.30-P-072328. The cylinder head was replaced in Aug 2025. About two months later, while driving under normal conditions, the vehicle made a loud cranking/knocking noise and completely stalled in traffic without any check engine light or warning. This s… Look up ODI 11702836 at NHTSA ↗
2026-01	7	None	ODI 11714225 I was driving on a street 5mph and all of a sudden my car surged and led me to curb where i knocked hit a steer din and it veered onto someone’s lawn and hit a huge planter and stopped . Air bags were deployed . I had no control over the car . EDR was preformed and I’m sure it was a throttle surge issue and cause unintended acceleration . The edr shows I was going 5 miles an hour but then says pedal was pushed to 100%. While traveling at approximately 4–5 mph during a low-speed maneuver, with light accelerator input, the vehicle unexpectedly s… Look up ODI 11714225 at NHTSA ↗ ODI 11711256 Water condensation within the driver side headlight which caused the complete headlight unit, control unit, and module to fail. This is a huge safety issue due to unable to operate vehicle safely during the when it comes to making left turns due to no signal indicator and a safety issue/hazard when driving at night. The issue has been inspected with a local dealer and with corporate being aware of the manufacturer defect. There were no indicators nor warning lamps prior to this issue. Look up ODI 11711256 at NHTSA ↗ ODI 11712746 Premature oil pump failure on a 2020 Mercedes-Benz GLC 300 with 71,000 miles. The check engine light illuminated on December 29th, 2025 and with no other warning symptoms. The vehicle has been maintained properly, including regular visits to Mercedes-Benz dealerships. The oil pump is a critical engine component that should not fail at this mileage. It has been recommended to not drive the vehicle without repairing as oil can leak onto a hot engine. This issue has been confirmed by a Mercedes dealer. Mercedes-Benz has offered $1,000 in goodwil… Look up ODI 11712746 at NHTSA ↗
2026-02	5	None	ODI 11716844 My sunroof just exploded while driving on the highway without any impact or warning. It was a clear sunny day. There wasn't a vehicle in front of me. Nothing fell on my windshield nor sunroof. The sudden explosion and shattering of the glass was extremely startling. I had a mesh underneath the sunroof that contained some of the shattered glass so it did not fall on me while I was driving. I'm so thankful there wasn't a car behind me for the glass debris to fall on. Mercedes USA was not helpful, unresponsive for many weeks. They eventua… Look up ODI 11716844 at NHTSA ↗ ODI 11721035 SUNROOF EXPLODED AND SHATTERED. I HEARD IT WHILE DRIVING AND HELD ON TIGHTLY TO THE STEERING WHEEL BEFORE I REALIZED WHAT IT WAS. THE DEALER AND MY AUTO INSURANCE HAVE BEEN CALLED, NEITHER PICKED UP, AND I LEFT EACH A VOICE MAIL MESSAGE. NO WARNING LAMPS, MESSAGES OR OTHER SYMPTOMS OF THE PROBLEM OCCURRED. Look up ODI 11721035 at NHTSA ↗ ODI 11715247 · 53,035 mi The contact owns a 2020 Mercedes-Benz GLC300. The contact stated that while driving at an undisclosed speed, the panoramic roof unexpectedly shattered. There was no warning light illuminated. The vehicle was taken to the dealer, where it was determined that the panoramic sunroof and the sunroof protector needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was opened. The approximate failure mileage was 53,035. Look up ODI 11715247 at NHTSA ↗
2026-03	10	26V172000	ODI 11723228 While driving on interstate 4 in Florida with our grandchildren going approximately 70 mph the sunroof on our 2018 Mercedes GLC just exploded no object came into the vehicle and while glass came into the vehiclenot all the glass that made up the sunroof came into vehicle suggesting a pressure issue as apparently blew out Look up ODI 11723228 at NHTSA ↗ ODI 11726943 A message that passenger air bag is damaged/will not deploy appears. Passenger seat belt gets stuck and cannot be opened. Check engine light on-pvc valve issue most likely. Look up ODI 11726943 at NHTSA ↗ ODI 11724095 Headlight is defective and is filled with condensation which has caused the entire light to fail. The problem has been confirmed by a independent service center. The light has not been inspected by a manufacturer however the manufacturer was contacted and denied that a recall exists however other purchasers have reported the same issue. There have been no apparent issues prior to this problem. Look up ODI 11724095 at NHTSA ↗
2026-04	7	None	ODI 11732752 Safety Issue: Infotainment display screen produces scrambled pixels during Apple CarPlay navigation while driving. Description: When Apple CarPlay is connected and navigation is in use, the vehicle's infotainment display screen suddenly produces scrambled pixels, rendering the map and display unreadable. This malfunction occurs without warning while the vehicle is in motion, creating a dangerous visual distraction for the driver and uncertainty of where and when to turn or exit. This is a known, recurring issue. On January 7, 2021, I brought … Look up ODI 11732752 at NHTSA ↗ ODI 11728476 I have a MC Benz 300 GLC with $50,000 miles. I was having heating issues so took it to the dealership, which basically advised of the issue describer below, which would cost $14k to repair. Contaminated coolant in Mercedes-Benz GLC 300 models often results from the internal failure of a "desiccant bag" inside the coolant expansion tank, which disintegrates, releasing material that clogs the heater core. Symptoms include black residue in the tank, reduced cabin heat, and engine overheating. Key actions include replacing the expansion tank (res… Look up ODI 11728476 at NHTSA ↗ ODI 11729435 · 106,706 mi The contact owns a 2019 Mercedes-Benz GLC300. The contact stated that while driving 65 MPH on the interstate, the sunroof suddenly shattered into pieces and flew off the vehicle. The vehicle was driven to a dealer but was not repaired. The manufacturer was notified of the failure. The failure mileage was 106,706. Look up ODI 11729435 at NHTSA ↗
2026-05	7	26V281000	ODI 11736351 On April 16, 2026, within minutes of being released from a certified dealership, my 2019 Mercedes-Benz GLC 300 suffered a sudden and total loss of propulsion while traveling at high speed on the Belt Parkway (NY). Despite depressing the accelerator, the vehicle failed to maintain speed and stalled in active traffic. This created an immediate life-safety hazard, forcing me to navigate across multiple lanes without engine power to avoid a high-speed rear-end collision. The vehicle was released to me by Mercedes-Benz of Brooklyn on April 16, 2026,… Look up ODI 11736351 at NHTSA ↗ ODI 11737705 I have had my car for almost two years. This problem has been on-going the whole time. It happens intermittently, I never know. I will be driving it and usually when I am making a turn or pulling onto a main road, you press the gas to go and the car hesitates and makes a loud brooooooooom sound like it is trying to go or figure out what to do and if you are pulling out onto a main road with on comming traffic, this is dangerous. We have seen information that on the 2019 and 2018 GLC300's this has been documented, my car is a 2020 but it's the … Look up ODI 11737705 at NHTSA ↗ ODI 11735862 Getting P06DA trouble code meaning that there is something wrong with the oil pressure solenoid in the oil sump. this is a known issue where the wiring of the solenoid get frayed. cost of repair for the (cheap part) is $7,500 because of 18 hour labor involved. MB knows this is an issue with the wiring in the solenoid. I'm not sure if there is a fire risk because of the frayed wires. Look up ODI 11735862 at NHTSA ↗
2026-06	5	None	ODI 11741952 Component Failure: The vehicle is equipped with the M274 2.0L turbocharged engine, which suffered a major internal mechanical defect. An authorized Mercedes-Benz dealership diagnosed the vehicle at 79,504 miles with a malfunction in the crankcase ventilation system alongside severe internal defects, quoting a total repair estimate of $9,851 to perform extensive engine work. Safety Risk: This known manufacturing defect involves premature failure and cracking of the pistons, which poses an immediate safety hazard due to potential catastrophic eng… Look up ODI 11741952 at NHTSA ↗ ODI 11746524 My 2020 Mercedes-Benz GLC 300 triggered check engine light with code P06DA (engine oil pressure control) at 40,000 miles. The failed component is an oil pressure control sensor/solenoid worth approximately $200. However, due to Mercedes-Benz's engine design (M264 engine), the entire engine must be removed from the vehicle to access and replace this part. Repair estimate from authorized Mercedes-Benz dealership (Mercedes-Benz of Stevens Creek): $8,391. SAFETY CONCERN: Loss of oil pressure can cause catastrophic engine failure while driving. Eng… Look up ODI 11746524 at NHTSA ↗ ODI 11742050 My vehicle got stuck on a EPB(electronic parking brake) and I was unable to disengage it. I tried a few things and none worked. I contacted Mercedes to tow it to the dealer and the tow truck came and driver had to “drag” my vehicle on to the flatbed. My car has been at Mercedes for 5 days now and they gave me a response saying that they are having a hard time trying to disengage the EPB. I’m aware of a EPB recall but my model is specified as being a part of it, however the issue is closely related to the recall so please take further interest i… Look up ODI 11742050 at NHTSA ↗
2026-07	3	26V481000	ODI 11753763 Error code P052E71 on a 2018 Mercedes-Benz GLC 300 4MATIC means the Positive Crankcase Ventilation (PCV) Regulator Valve Performance has a malfunction, specifically that the partial-load ventilation valve actuator is blocked. By research, i found that this is a very common problem on those engines, and no recalls from the company to fix their fault. Look up ODI 11753763 at NHTSA ↗ ODI 11748161 While driving down a busy neighborhood street 2 lanes with cars on both sides making it a 1 lane road pulled over to the side a little to let cars pass. All of a sudden ALL electrical and engine stopped and turned off. Only thing that was powered was instrument cluster with multiple warnings like SRS Malfunction, Steering Malfunction, SOS Inoperative, Parking Brake and more. We believe the car had also shifted to park on its own. No power to anything not even hazard lights. Nothing electrical had any sort of power. Could not even turn car off… Look up ODI 11748161 at NHTSA ↗ ODI 11751934 My vehicle's infotainment system both center console and dashbboard went completely black 2 weeks after I purchased the car in August of 2025. The vehicle was in the shop for a week and a half, and they finally fixed the issue. The vehicle at the time was bought used with about 2,200 miles on it at time of purchase. Now in July of 2026, exactly one year from the day i bought the car, with only 9,500 miles on it, we are having the same issue again with both the dashboard and center console going completely dark, not allowing us to see any critic… Look up ODI 11751934 at NHTSA ↗
2026-08	11	None	ODI 11760501 What component or system failed or malfunctioned, and is it available for inspection upon request? The Forward Collision Avoidance / Active Brake Assist (Automatic Emergency Braking) system failed by falsely identifying a non-existent threat and initiating uncommanded emergency stopping. The vehicle and its onboard control modules are fully available for physical and diagnostic inspection upon request. How was your safety or the safety of others put at risk? While traveling at approximately 35 mph, the vehicle suddenly executed maximum emergenc… Look up ODI 11760501 at NHTSA ↗ ODI 11761172 My check-engine light recently illuminated, and diagnostic testing identified fault code P06DA00, relating to the oil pump control valve circuit. I have been quoted over $5,000 to replace the oil control valve and oil pump harness. I was quoted the following by Mercedes Servuce in Manchester, NH- Oil Pressure Regulator Valve: need to remove lower oil pan only to access oil control valve and replace the valve and sub harness. $5013.52. This is a known issue. My vehicle has been well maintained, and I have been advised that it is otherwise in ex… Look up ODI 11761172 at NHTSA ↗ ODI 11760363 While the vehicle was being operated normally, it caught fire. We were driving on a summer day in August. Conditions were humid, with temperatures in the mid-80s. The vehicle was on the return leg of an approximately 30-mile drive. Traffic was somewhat heavy, with speeds generally below 20 mph and occasional stops. We first noticed a slight burning smell, followed shortly afterward by a distinct puff of white smoke coming from under the hood on the passenger side, near the windshield. We immediately decided to stop the vehicle and get out. Wi… Look up ODI 11760363 at NHTSA ↗
2026-09 (partial)	4	None	ODI 11764849 vehicle: 2019 Mercedes-Benz GLC 300 Component Involved: Integrated Transmission Control Module (TCM) / Mechatronic Unit Active Diagnostic Code: P073E (Unable to Engage Reverse) Description of Event: While attempting to back out of a driveway, the vehicle experienced a sudden, catastrophic electronic transmission failure. Without any warning or prior symptoms, the vehicle abruptly kicked itself out of gear and dropped into Neutral. The vehicle completely lost all propulsion and ability to move backward or forward, rendering it entirely disable… Look up ODI 11764849 at NHTSA ↗ ODI 11762288 My 2021 Mercedes-Benz GLC 300 is not currently included in NHTSA Recall 22V-261 / Mercedes-Benz Campaign 2022050005, but my vehicle is experiencing substantially the same defect described in that recall. Moisture/water entered the left headlamp assembly/electrical connection, resulting in condensation/water accumulation and damage/corrosion around the headlamp electrical module/connector. The headlamp system subsequently malfunctioned. Recall 22V-261 describes a condition where the headlamp electrical connection may not be watertight, allowin… Look up ODI 11762288 at NHTSA ↗ ODI 11763491 My vehicle is experiencing moisture intrusion caused by a defective headlight housing seal. The water intrusion has resulted in a short circuit and failure of the turn signal module within the headlamp assembly. I am aware of NHTSA Safety Recall 22V-261, which addresses a substantially similar defect involving inadequate watertight sealing of the headlamp assembly that can allow moisture intrusion and lead to headlamp electrical failure. My vehicle is experiencing the same type of moisture intrusion and resulting electrical failure described i… Look up ODI 11763491 at NHTSA ↗

Emerging complaint spikes

Complete months in the latest six months with at least 10 complaints, at least twice the preceding 12-month average, and at least three square-root deviations above that average.

This is a descriptive screening rule, not a statistical defect finding. Publicity and reporting changes can increase submissions.

No complete months meet the spike thresholds for this selection.

Equal-age model-year comparison

Model-wide cumulative reports during the first three or five calendar years, starting with the model year (age 0). Only fully elapsed windows are compared.

Observation windowFirst model yearSecond model year

2022: 35 complaints · 2023: 53 complaints

Equal observation windows
Model year	Through age 0	Through age 1	Through age 2
2022	11	29	35
2023	32	50	53

Date coverage across each selected cohort

Date basis for all complaints in selected model years
Year	Incident dates used	Filing date fallbacks	Excluded dates
2022	58	0	1
2023	55	0	0

Incident date is preferred when valid and no later than filing; otherwise filing date is used. Model year approximates age. Equal observation time does not adjust for sales, distance driven or reporting delays. One complaint linked to multiple model years can appear in each cohort.

Components reported together

Each cell counts unique complaints naming both components. Open a nonzero cell for examples.

Component co-occurrence matrix
Component	Engine	Electrical System	Unknown Or Other	Fuel/Propulsion System	Exterior Lighting	Power Train	Steering	Service Brakes
Engine	—	30 ODI 11140717 · 6,000 mi 'THE FIRST INCIDENT - OCCURRED IN AUGUST WHEN I STOPPED AT A STOP-LIGHT. I STARTED DRIVING WHEN THE LIGHT TURNED GREEN AND THE CAR WAS ACCELERATING AS NORMAL. THERE WERE CARS BEHIND ME ACCELERATING AS WELL AS NORMAL. MY SUV AUTOMATICALLY SHIFTED FROM DRIVE TO NEUTRAL BY ITSELF AS I CONTINUE TO ACCELERATE TO MOVE WITH THE NORMAL FLOW OF TRAFFIC. THE VEHICLE AUTOMATICALLY SLOWED DOWN TO NEUTRAL '2ND INCIDENT - THE SAME ISSUE OCCURRED AGAIN WITHIN TWO WEEKS I WAS DRIVING ON THE LONG ISLAND EXPRESSWAY AT APPROXIMATELY 40 MILES PER HOUR IN HEAVY TR… Look up ODI 11140717 at NHTSA ↗ ODI 11525173 Vehicle stopped while driving on road. Car show "active brake assist malfunction" on the dashboard, immediately following the car will not accelerate. Shut the car off and restart, then the "check engine light" comes up. The active brake assist does not come up again, but the check engine light states on. I have taken the vehicle 5 times for this issue to the dealer, car is currently at the dealer. Reason of my report, is that I consider this situation extremely dangerous and should be investigated further. [XXX] INFORMATION Redacted PURSUAN… Look up ODI 11525173 at NHTSA ↗ ODI 11544396 Vehicle is switching gears automatically from Drive to Neutral in the middle of the road, in the middle of driving, VERY dangerous situation. I cannot put in reverse sometimes it switches back to N. . It always switch his back to neutral. Thankfully no accidents. Don’t know what to do? Look up ODI 11544396 at NHTSA ↗	8 ODI 11544396 Vehicle is switching gears automatically from Drive to Neutral in the middle of the road, in the middle of driving, VERY dangerous situation. I cannot put in reverse sometimes it switches back to N. . It always switch his back to neutral. Thankfully no accidents. Don’t know what to do? Look up ODI 11544396 at NHTSA ↗ ODI 11555853 I m having issue with te code po52e its annoying i fixed and still the same issue Look up ODI 11555853 at NHTSA ↗ ODI 11579424 I brought my vehicle in to get serviced because the check engine light came on and I was told it was CODE PRESENT P0521E71 VALVE FOR CRANK CASE VENT. HAS MALFUNCTION / BLOCKED. I was told I have warranty on it so Mercedes of Massapequa took the car to fix.I was told the part was fixed but oil was found on my engine computer from the crank case vent malfunctioning but the warranty won't cover it although it was a direct result of a part that was covered part and had caused the damage.They gave me my car back and my car is worse it has problems s… Look up ODI 11579424 at NHTSA ↗	20 ODI 11511961 Crankcase Breather Intake Line - Part number 274090560080 is malfunctioning and replacement of this requires over $2,000 at the dealership. This is a very common issue among the Mercedes-Benz vehicles that uses this same engine. Look up ODI 11511961 at NHTSA ↗ ODI 11515523 P052E PCV value problem requiring a $2000 repair. Has happened 2 times in 70k miles. Look up ODI 11515523 at NHTSA ↗ ODI 11520527 Code P052E---crankcase Vent Solenoid Valve issue---------common issue with this model----under 65,000 miles Look up ODI 11520527 at NHTSA ↗	6 ODI 11646060 High beam can't auto dim Fuel pump fail to operate, misfires, and shut down while driving Look up ODI 11646060 at NHTSA ↗ ODI 11529864 Sunday, June 25, when I was driving the car on the road, the engine shut off and the car stopped running. 3 warning lights show on screen: engine light; 48v Battery Service Required; 12v Battery service required. I used the break to park the car on the roadside after that. I tried many times to restart the car, Waited over one hour and 40 minutes it finally started again, the engine warning light was still on until the second day morning, and I was able to take pics as evident. 1. What component or system failed or malfunctioned, and is it a… Look up ODI 11529864 at NHTSA ↗ ODI 11536672 Unexpectedly and without any indication or warning, at [XXX] on [XXX] I experienced multiple system failures/engine light/critical warning lights/. Transmission error message states do not shift into gear, take for service. Engine check light on. Car would not start, car was unable to be put into park. Door alarm for transmission not in park was alarming audible. After car shut off and attempt to put into park the car would not engage into park and the car electronics malfunctioned, would not stop alarming despite off, multiple error messages, … Look up ODI 11536672 at NHTSA ↗	12 ODI 11741952 Component Failure: The vehicle is equipped with the M274 2.0L turbocharged engine, which suffered a major internal mechanical defect. An authorized Mercedes-Benz dealership diagnosed the vehicle at 79,504 miles with a malfunction in the crankcase ventilation system alongside severe internal defects, quoting a total repair estimate of $9,851 to perform extensive engine work. Safety Risk: This known manufacturing defect involves premature failure and cracking of the pistons, which poses an immediate safety hazard due to potential catastrophic eng… Look up ODI 11741952 at NHTSA ↗ ODI 11443463 I was going through drive thru waiting in line, when suddenly the car started to accelerate sharply, I put two feet on the brakes to stop the forward motion of vehicle - could not stop or place in park or neutral. their was ample room from the vehicle in front.. slightly removed feet from brake, suv lunged at vehicle in front kept on lunging then came to a halt...vehicle went back to normal operation. Look up ODI 11443463 at NHTSA ↗ ODI 11737705 I have had my car for almost two years. This problem has been on-going the whole time. It happens intermittently, I never know. I will be driving it and usually when I am making a turn or pulling onto a main road, you press the gas to go and the car hesitates and makes a loud brooooooooom sound like it is trying to go or figure out what to do and if you are pulling out onto a main road with on comming traffic, this is dangerous. We have seen information that on the 2019 and 2018 GLC300's this has been documented, my car is a 2020 but it's the … Look up ODI 11737705 at NHTSA ↗	0	3 ODI 11748161 While driving down a busy neighborhood street 2 lanes with cars on both sides making it a 1 lane road pulled over to the side a little to let cars pass. All of a sudden ALL electrical and engine stopped and turned off. Only thing that was powered was instrument cluster with multiple warnings like SRS Malfunction, Steering Malfunction, SOS Inoperative, Parking Brake and more. We believe the car had also shifted to park on its own. No power to anything not even hazard lights. Nothing electrical had any sort of power. Could not even turn car off… Look up ODI 11748161 at NHTSA ↗ ODI 11547469 2023 Mercedes Benz GLC 300. Several Electrical, Braking, Collision, Check Battery related issues noted. At approximately 500 miles on vehicle battery system began sending critical voltage error messages to notification app after the vehicle had been turned off. --Owner recharged battery on front terminals. At various intervals, check engine light would come on while driving, sometimes for days at a time. Sometimes for less than an hour, sometimes for a day or so but not long enough to get into a MB Dealer.---MB has less than 5,000 Miles. … Look up ODI 11547469 at NHTSA ↗ ODI 11595907 First of all, this is a new car produced in 2023. Since I bought it, the engine has shown alarms more than four times. Every time I went to the 4S shop, no problems were found. Today, the engine still shows a yellow alarm. Secondly, the brake disc makes a loud noise when I park the car and then start the accelerator. Mercedes-Benz has not paid attention to these problems. I think it greatly affects driving safety.This car has been sent to the 4S store many times, but the inspection has always failed. The above-mentioned problems with the car ha… Look up ODI 11595907 at NHTSA ↗
Electrical System	30 ODI 11140717 · 6,000 mi 'THE FIRST INCIDENT - OCCURRED IN AUGUST WHEN I STOPPED AT A STOP-LIGHT. I STARTED DRIVING WHEN THE LIGHT TURNED GREEN AND THE CAR WAS ACCELERATING AS NORMAL. THERE WERE CARS BEHIND ME ACCELERATING AS WELL AS NORMAL. MY SUV AUTOMATICALLY SHIFTED FROM DRIVE TO NEUTRAL BY ITSELF AS I CONTINUE TO ACCELERATE TO MOVE WITH THE NORMAL FLOW OF TRAFFIC. THE VEHICLE AUTOMATICALLY SLOWED DOWN TO NEUTRAL '2ND INCIDENT - THE SAME ISSUE OCCURRED AGAIN WITHIN TWO WEEKS I WAS DRIVING ON THE LONG ISLAND EXPRESSWAY AT APPROXIMATELY 40 MILES PER HOUR IN HEAVY TR… Look up ODI 11140717 at NHTSA ↗ ODI 11525173 Vehicle stopped while driving on road. Car show "active brake assist malfunction" on the dashboard, immediately following the car will not accelerate. Shut the car off and restart, then the "check engine light" comes up. The active brake assist does not come up again, but the check engine light states on. I have taken the vehicle 5 times for this issue to the dealer, car is currently at the dealer. Reason of my report, is that I consider this situation extremely dangerous and should be investigated further. [XXX] INFORMATION Redacted PURSUAN… Look up ODI 11525173 at NHTSA ↗ ODI 11544396 Vehicle is switching gears automatically from Drive to Neutral in the middle of the road, in the middle of driving, VERY dangerous situation. I cannot put in reverse sometimes it switches back to N. . It always switch his back to neutral. Thankfully no accidents. Don’t know what to do? Look up ODI 11544396 at NHTSA ↗	—	9 ODI 11544396 Vehicle is switching gears automatically from Drive to Neutral in the middle of the road, in the middle of driving, VERY dangerous situation. I cannot put in reverse sometimes it switches back to N. . It always switch his back to neutral. Thankfully no accidents. Don’t know what to do? Look up ODI 11544396 at NHTSA ↗ ODI 11579424 I brought my vehicle in to get serviced because the check engine light came on and I was told it was CODE PRESENT P0521E71 VALVE FOR CRANK CASE VENT. HAS MALFUNCTION / BLOCKED. I was told I have warranty on it so Mercedes of Massapequa took the car to fix.I was told the part was fixed but oil was found on my engine computer from the crank case vent malfunctioning but the warranty won't cover it although it was a direct result of a part that was covered part and had caused the damage.They gave me my car back and my car is worse it has problems s… Look up ODI 11579424 at NHTSA ↗ ODI 11732752 Safety Issue: Infotainment display screen produces scrambled pixels during Apple CarPlay navigation while driving. Description: When Apple CarPlay is connected and navigation is in use, the vehicle's infotainment display screen suddenly produces scrambled pixels, rendering the map and display unreadable. This malfunction occurs without warning while the vehicle is in motion, creating a dangerous visual distraction for the driver and uncertainty of where and when to turn or exit. This is a known, recurring issue. On January 7, 2021, I brought … Look up ODI 11732752 at NHTSA ↗	9 ODI 11469867 -I purchased a GLC300. Today I discovered I own a GLC 230 HAZMAT SUV with a Hydrogen tank and other dangerous items. German hazard lights that do not mirror my driver's manual or the car I purchased. -Hazard lights showing SRS systems malfunctioning - Hazard lights showing projected contact -Two unwanted unknown installations of Mercedesa branded navigation systems have been installed in my car without my permission. This is not over the air updates. I have the serial numbers. Mercedes-Benz has yet to respond to my requests for safety and… Look up ODI 11469867 at NHTSA ↗ ODI 11666424 On May 22, 2025, while parked, my 2019 Mercedes-Benz GLC300 spontaneously caught fire, completely destroying the vehicle. Thankfully, no one was inside, and no injuries occurred, but the property damage was significant. I later discovered Recall 21V961000 / Campaign 2022030003 affecting some 2019 GLC300s for fuel leaks at the fuel rail/injector interface, which pose a serious fire hazard. Further research has shown reports of loose ground connections in these vehicles as well, increasing the risk of sparks igniting leaked fuel. Given that my … Look up ODI 11666424 at NHTSA ↗ ODI 11486730 My car was bought new in October 2021 & I began having problems after having it for 6 months & the mileage at that time was about 4000 miles - it was in April 2022 & the check engine light came on & I had a loss of power to where it slowed down & would not go any faster than about 30/35 miles an hour going on a straight road way & no faster than about 10 miles an hour going uphill. The engine sounded funny as well. It had to be towed to the dealership for repair. This incident happened again a month later & it was towed to the dealership at th… Look up ODI 11486730 at NHTSA ↗	10 ODI 11627113 My vehicle suddenly starting getting moisture in the passenger side head light.Many people brought this my attention.After some time of moisture the head light begin to flicker on and off while I was driving.Then it just went out and stopped working.Eventually I took it to the dealer and they informed me that my vehicle didn't have a recall for this issue.As I search the Internet I found that lots of other customers experienced this same exact issue.I called Mercedes USA and they informed me to present the issue to you all. Thank You in advance… Look up ODI 11627113 at NHTSA ↗ ODI 11657172 I seen a recall for certain 2021 GLC 300 vehicles for moisture in right side headlamp, causing headlamp to blow (go out). This happened on my 2021 GLC 300. Same moisture issue, same year, same model, however, my vin number does not show that it has a recall. I believe this safety issue needs to be expanded to include my vehicle. Same issue, same year, same make and same model Look up ODI 11657172 at NHTSA ↗ ODI 11674539 Have been getting condensate inside vehicle headlights inwhich have cause the headlight to completely not work anymore.. There is no damage to headlight which means to be cause due to a problem with the seal. Checked with local and also statewide Mercedes advisors which was told there isn’t a recall for my vehicle inwhich I looked online and found an recall for vehicles just like the one I have.. Recall number 22V261000-Recall Date 04-14-2022. I’m asking for my vehicle to be inspected and repaired free of charge . Thanks and sorry for the bothe… Look up ODI 11674539 at NHTSA ↗	8 ODI 11144554 · 3,200 mi THE STEERING COLUMN STALK CONTROLS DRIVE, REVERSE, NEUTRAL AND PARKING. I STOPPED THE VEHICLE ON AN INCLINE IN A PARKING LOT. I HAD MY FOOT ON THE BRAKE. I SHIFTED INTO NEUTRAL. THE ENGINE WAS STILL RUNNING. I THOUGHT I PUSHED THE PARK BUTTON BUT THE CAR ROLLED BACK INTO ANOTHER VEHICLE. Look up ODI 11144554 at NHTSA ↗ ODI 11443463 I was going through drive thru waiting in line, when suddenly the car started to accelerate sharply, I put two feet on the brakes to stop the forward motion of vehicle - could not stop or place in park or neutral. their was ample room from the vehicle in front.. slightly removed feet from brake, suv lunged at vehicle in front kept on lunging then came to a halt...vehicle went back to normal operation. Look up ODI 11443463 at NHTSA ↗ ODI 11736351 On April 16, 2026, within minutes of being released from a certified dealership, my 2019 Mercedes-Benz GLC 300 suffered a sudden and total loss of propulsion while traveling at high speed on the Belt Parkway (NY). Despite depressing the accelerator, the vehicle failed to maintain speed and stalled in active traffic. This created an immediate life-safety hazard, forcing me to navigate across multiple lanes without engine power to avoid a high-speed rear-end collision. The vehicle was released to me by Mercedes-Benz of Brooklyn on April 16, 2026,… Look up ODI 11736351 at NHTSA ↗	4 ODI 11480906 Vehicle vibrates quite violently when hit some potholes. Steering wheel is the part that vibrates more but vibration is felt throughout the vehicle. It is more prevalent at highway between 55-65 mph speed. I also noticed that car shakes unusually and tilts to one side at times making it quite uncomfortable for driver. back tires make slipping noice on potholes and feels like car is going to be unstable momentarily . All these issues are putting driver and others at risk. I joined Facebook page of glc300 owners and almost everyone reported thi… Look up ODI 11480906 at NHTSA ↗ ODI 11530039 Excessive steering wheel vibration after the software update. Mercedes main office in Georgia was notified and they instructed there is a fix after I threatened the lemon law. Time on dash will read random times, then will fix itself. Air conditioner will not run cold to drivers side. Look up ODI 11530039 at NHTSA ↗ ODI 11538722 This 2023 GLC, a newly redesigned model, has a number of issues. The two most severe are the adaptive speed limit and the lane keeping assist. I had to disable the traffic sign recognition feature because I was on I-95 in Maryland where the posted speed limit was 65. The car abruptly slowed me down to 35 because it saw an exit sign speed limit but I was not on the exit. I was lucky the car behind me didn't hit me. A warning would be good but to brake the vehicle for a speed limit sign seems problematic. The more serious issue is the lane … Look up ODI 11538722 at NHTSA ↗	7 ODI 11349114 · 21,000 mi WHEN I WAS PULLING INTO A PARKING SPOT AT A LOW SPEED, THE CAR ACCELERATED AND LURCHED FORWARD, HITTING A WALL, WHICH DEPLOYED THE AIRBAGS. WHEN THE CAR STARTED TO ACCELERATE, I HIT THE BRAKES BUT THEY DID NOT ENGAGE. Look up ODI 11349114 at NHTSA ↗ ODI 11742050 My vehicle got stuck on a EPB(electronic parking brake) and I was unable to disengage it. I tried a few things and none worked. I contacted Mercedes to tow it to the dealer and the tow truck came and driver had to “drag” my vehicle on to the flatbed. My car has been at Mercedes for 5 days now and they gave me a response saying that they are having a hard time trying to disengage the EPB. I’m aware of a EPB recall but my model is specified as being a part of it, however the issue is closely related to the recall so please take further interest i… Look up ODI 11742050 at NHTSA ↗ ODI 11748161 While driving down a busy neighborhood street 2 lanes with cars on both sides making it a 1 lane road pulled over to the side a little to let cars pass. All of a sudden ALL electrical and engine stopped and turned off. Only thing that was powered was instrument cluster with multiple warnings like SRS Malfunction, Steering Malfunction, SOS Inoperative, Parking Brake and more. We believe the car had also shifted to park on its own. No power to anything not even hazard lights. Nothing electrical had any sort of power. Could not even turn car off… Look up ODI 11748161 at NHTSA ↗
Unknown Or Other	8 ODI 11544396 Vehicle is switching gears automatically from Drive to Neutral in the middle of the road, in the middle of driving, VERY dangerous situation. I cannot put in reverse sometimes it switches back to N. . It always switch his back to neutral. Thankfully no accidents. Don’t know what to do? Look up ODI 11544396 at NHTSA ↗ ODI 11555853 I m having issue with te code po52e its annoying i fixed and still the same issue Look up ODI 11555853 at NHTSA ↗ ODI 11579424 I brought my vehicle in to get serviced because the check engine light came on and I was told it was CODE PRESENT P0521E71 VALVE FOR CRANK CASE VENT. HAS MALFUNCTION / BLOCKED. I was told I have warranty on it so Mercedes of Massapequa took the car to fix.I was told the part was fixed but oil was found on my engine computer from the crank case vent malfunctioning but the warranty won't cover it although it was a direct result of a part that was covered part and had caused the damage.They gave me my car back and my car is worse it has problems s… Look up ODI 11579424 at NHTSA ↗	9 ODI 11544396 Vehicle is switching gears automatically from Drive to Neutral in the middle of the road, in the middle of driving, VERY dangerous situation. I cannot put in reverse sometimes it switches back to N. . It always switch his back to neutral. Thankfully no accidents. Don’t know what to do? Look up ODI 11544396 at NHTSA ↗ ODI 11579424 I brought my vehicle in to get serviced because the check engine light came on and I was told it was CODE PRESENT P0521E71 VALVE FOR CRANK CASE VENT. HAS MALFUNCTION / BLOCKED. I was told I have warranty on it so Mercedes of Massapequa took the car to fix.I was told the part was fixed but oil was found on my engine computer from the crank case vent malfunctioning but the warranty won't cover it although it was a direct result of a part that was covered part and had caused the damage.They gave me my car back and my car is worse it has problems s… Look up ODI 11579424 at NHTSA ↗ ODI 11732752 Safety Issue: Infotainment display screen produces scrambled pixels during Apple CarPlay navigation while driving. Description: When Apple CarPlay is connected and navigation is in use, the vehicle's infotainment display screen suddenly produces scrambled pixels, rendering the map and display unreadable. This malfunction occurs without warning while the vehicle is in motion, creating a dangerous visual distraction for the driver and uncertainty of where and when to turn or exit. This is a known, recurring issue. On January 7, 2021, I brought … Look up ODI 11732752 at NHTSA ↗	—	3 ODI 11469867 -I purchased a GLC300. Today I discovered I own a GLC 230 HAZMAT SUV with a Hydrogen tank and other dangerous items. German hazard lights that do not mirror my driver's manual or the car I purchased. -Hazard lights showing SRS systems malfunctioning - Hazard lights showing projected contact -Two unwanted unknown installations of Mercedesa branded navigation systems have been installed in my car without my permission. This is not over the air updates. I have the serial numbers. Mercedes-Benz has yet to respond to my requests for safety and… Look up ODI 11469867 at NHTSA ↗ ODI 11589246 The error code is P052E and it is a PCV Code Crankcase Ventilation Oil Separator. It's a time-consuming and expensive repair that seems to be regularly occurring on a lot Mercedes Benz that have this installed. And it happens often on cars with under 50K miles on them and when it's just been out of warranty this is a small inexpensive part that the customer funds through the cost of labor. Not that mechanics don't deserve their labor costs, but Mercedes ought to fix this is issue as it is borne by the consumer of a high end vehicle for a con… Look up ODI 11589246 at NHTSA ↗ ODI 11651058 Dear Sirs: I own a 2020 GLC300W Mercedes SUV. As of this date, It has stalled 5 times while driving on the highway and on the roads within an 8 month period. Throughout this period, I have taken the vehicle to the Mercedes dealership in Riverside, CA three times to have this inspected. After their first inspection, the dealership claimed that the problem was due to a recall on a computer software update needed. However, the vehicle stalled two more times while driving on the highway. After the second inspection, the dealership claimed the prob… Look up ODI 11651058 at NHTSA ↗	2 ODI 11629760 Attention Assist System Suspended notification comes on randomly on vehicle while driving, rendering driver defenseless with regard to safety warnings that would otherwise be in effect, such as blind spot assist, attention assist, which are vital components for safe driving. This has happened on numerous occasions, most recently on 12/06/2024 while driving under destination route guidance. It has also happened when car was stopped to retrieve mail at residence mail box and, at other times for no apparent reason, while driving. Each time when e… Look up ODI 11629760 at NHTSA ↗ ODI 11754184 The screen goes blank not only in the middle where the maps, air conditioning and radio is but the screen where the speed gas tank are as well. We have taken the car in at least 5 times stayed the issue and were told there’s no recall yet for the car. I see here that there is. The car was a Richmond Mercedes today the screen went down amd I was told there’s no fix but maybe I could look on the internet. So here I am! Look up ODI 11754184 at NHTSA ↗	2 ODI 11537315 VEHICLE SHUT DOWN WHILE DRIVING. WARNING LIGHTS ILLUMINATE, CHECK ENGINE LIGHT, DO NOT SHIFT INTO GEAR WARNING, 48V BATTERY WARNING, ETC. WOULD NOT STOP ALARMING. COULD NOT SHUT OFF CAR. COULD NOT PUT CAR INTO PARK. COULD NOT START CAR. WARNING BUZZER WOULD GO OFF ENTIRE TIME. CAR WAS ONLY ABLE TO BE STARTED WHEN REMOTE START REQUEST WAS INITIATED WHEN CAR WAS IN THIS MODE, CAR WAS STARTED BUT THEN SHUT OFF 10 SECONDS LATERS APP STATES, “CHECK ENGINE LIGHT ON” WIL SHUT OFF THE CAR. CAR BACK TO NORMAL AFTER EVENT APPROX 60 MIN BUT CHECK ENGINE L… Look up ODI 11537315 at NHTSA ↗ ODI 11566165 Brand new '24 GLC300 4MATIC. Engine light came on with no error message. Brought it in for service. Miscellaneous engine repair states: "Found current code POA7F00 in drivetrain control unit. Followed LI54.10-P-077250. Cleared codes. Drained 48V battery to below 25% SOC. Charged vehicle to 70% SOC. Job complete." Service foreman mentioned that the service performed may not resolve issue. He contacted Mercedes-Benz Engineering and said no fix at this time and no ETA. Left service with no more engine light on. However, it didn't take… Look up ODI 11566165 at NHTSA ↗	3 ODI 11516174 There is a squeaky noise from the suspension, shock absorbers or somewhere in that area. They have fixed the issue multiple times. Kept my car in the workshop for days multiple times but it’s not getting fixed. They probably sold me a lemon. I need help in rectifying this issue. Look up ODI 11516174 at NHTSA ↗ ODI 11696517 Loss of Steering Control at Highway Speeds – 2022 Mercedes-Benz GLC300 Vehicle: 2022 Mercedes-Benz GLC300, VIN [XXX] Dates of Incident: September 13th and October 4th Mileage at Time of Incident: 39,500 While driving on a four-lane expressway at highway speeds, my vehicle suddenly and completely lost steering control, resulting in a total inability to steer. First Incident The first event occurred during light rain with mildly wet road conditions. Without warning, the vehicle hydroplaned and violently crossed all four lanes approximately 20… Look up ODI 11696517 at NHTSA ↗ ODI 11682705 The driver’s seat automatically adjusted while the vehicle was in drive, causing me to lose the ability to reach the pedals and almost resulting in a collision. While driving my 2025 Mercedes-Benz GLC 300 4MATIC with my children in the car, I stopped at a stop sign when the driver’s seat suddenly began adjusting itself backward. My husband also drives this vehicle, and because I had not logged into my driver profile, the car began moving the seat and controls to his saved position, while the car was in drive. The seat moved so far back that I… Look up ODI 11682705 at NHTSA ↗	1 ODI 11562589 I have had issues with squeaky, very loud noises at slow speed and reverse braking. I have had this issue since I purchased this vehicle. I have brought it in a few times to have 2 different dealers fix the noise as I believe it is a safety issue as well. They said this is a common issue with GLC that they have noises while braking but there is no fix. I had an advisor drive the vehicle and witness loud squeaky noises while braking. Spending a lot of money on this vehicle, and Mercedes should fix this issue. I believe the brake system falls und… Look up ODI 11562589 at NHTSA ↗
Fuel/Propulsion System	20 ODI 11511961 Crankcase Breather Intake Line - Part number 274090560080 is malfunctioning and replacement of this requires over $2,000 at the dealership. This is a very common issue among the Mercedes-Benz vehicles that uses this same engine. Look up ODI 11511961 at NHTSA ↗ ODI 11515523 P052E PCV value problem requiring a $2000 repair. Has happened 2 times in 70k miles. Look up ODI 11515523 at NHTSA ↗ ODI 11520527 Code P052E---crankcase Vent Solenoid Valve issue---------common issue with this model----under 65,000 miles Look up ODI 11520527 at NHTSA ↗	9 ODI 11469867 -I purchased a GLC300. Today I discovered I own a GLC 230 HAZMAT SUV with a Hydrogen tank and other dangerous items. German hazard lights that do not mirror my driver's manual or the car I purchased. -Hazard lights showing SRS systems malfunctioning - Hazard lights showing projected contact -Two unwanted unknown installations of Mercedesa branded navigation systems have been installed in my car without my permission. This is not over the air updates. I have the serial numbers. Mercedes-Benz has yet to respond to my requests for safety and… Look up ODI 11469867 at NHTSA ↗ ODI 11666424 On May 22, 2025, while parked, my 2019 Mercedes-Benz GLC300 spontaneously caught fire, completely destroying the vehicle. Thankfully, no one was inside, and no injuries occurred, but the property damage was significant. I later discovered Recall 21V961000 / Campaign 2022030003 affecting some 2019 GLC300s for fuel leaks at the fuel rail/injector interface, which pose a serious fire hazard. Further research has shown reports of loose ground connections in these vehicles as well, increasing the risk of sparks igniting leaked fuel. Given that my … Look up ODI 11666424 at NHTSA ↗ ODI 11486730 My car was bought new in October 2021 & I began having problems after having it for 6 months & the mileage at that time was about 4000 miles - it was in April 2022 & the check engine light came on & I had a loss of power to where it slowed down & would not go any faster than about 30/35 miles an hour going on a straight road way & no faster than about 10 miles an hour going uphill. The engine sounded funny as well. It had to be towed to the dealership for repair. This incident happened again a month later & it was towed to the dealership at th… Look up ODI 11486730 at NHTSA ↗	3 ODI 11469867 -I purchased a GLC300. Today I discovered I own a GLC 230 HAZMAT SUV with a Hydrogen tank and other dangerous items. German hazard lights that do not mirror my driver's manual or the car I purchased. -Hazard lights showing SRS systems malfunctioning - Hazard lights showing projected contact -Two unwanted unknown installations of Mercedesa branded navigation systems have been installed in my car without my permission. This is not over the air updates. I have the serial numbers. Mercedes-Benz has yet to respond to my requests for safety and… Look up ODI 11469867 at NHTSA ↗ ODI 11589246 The error code is P052E and it is a PCV Code Crankcase Ventilation Oil Separator. It's a time-consuming and expensive repair that seems to be regularly occurring on a lot Mercedes Benz that have this installed. And it happens often on cars with under 50K miles on them and when it's just been out of warranty this is a small inexpensive part that the customer funds through the cost of labor. Not that mechanics don't deserve their labor costs, but Mercedes ought to fix this is issue as it is borne by the consumer of a high end vehicle for a con… Look up ODI 11589246 at NHTSA ↗ ODI 11651058 Dear Sirs: I own a 2020 GLC300W Mercedes SUV. As of this date, It has stalled 5 times while driving on the highway and on the roads within an 8 month period. Throughout this period, I have taken the vehicle to the Mercedes dealership in Riverside, CA three times to have this inspected. After their first inspection, the dealership claimed that the problem was due to a recall on a computer software update needed. However, the vehicle stalled two more times while driving on the highway. After the second inspection, the dealership claimed the prob… Look up ODI 11651058 at NHTSA ↗	—	2 ODI 11646060 High beam can't auto dim Fuel pump fail to operate, misfires, and shut down while driving Look up ODI 11646060 at NHTSA ↗ ODI 11568908 I have taken the delivery of this car on May 2023 and has been having many issues including but not limited to rear seatbelt malfunction that needed replacement. Recent major issue is constant 'check engine light on' for various issues. Below is the 'F' and 'I' items from 'initial quick test log' as of [XXX] and also attaching detail log file. No resolution or action has been taken after several trips to the dealership in past couple of weeks and not being able to drive due to safety concern. N127 - Control unit "Drivetrain" (PTCU) -F- N73/3*1 … Look up ODI 11568908 at NHTSA ↗	3 ODI 11737705 I have had my car for almost two years. This problem has been on-going the whole time. It happens intermittently, I never know. I will be driving it and usually when I am making a turn or pulling onto a main road, you press the gas to go and the car hesitates and makes a loud brooooooooom sound like it is trying to go or figure out what to do and if you are pulling out onto a main road with on comming traffic, this is dangerous. We have seen information that on the 2019 and 2018 GLC300's this has been documented, my car is a 2020 but it's the … Look up ODI 11737705 at NHTSA ↗ ODI 11559715 This is the 3rd incidence of this issue (July, Oct, Dec), but we have been advised that a software update is not yet available from the manufacturer. In all instances, we were travelling at a normal rate of in-city traffic (30-45 mph) and all of sudden the vehicle will not accelerate above 25 mph regardless of the position of the throttle. My dealer, Mercedes Benz of Tampa, advises that the problem can only be corrected permanently with a "software update" which is not yet available. This is a major safety issue, especially on the highway, a… Look up ODI 11559715 at NHTSA ↗ ODI 11760688 The vehicle is experiencing an intermittent, sudden, and life-threatening drop into "limp home mode" while driving, creating an severe speed differential with surrounding traffic.First Incident (50,584 miles): The vehicle entered limp mode. Authorized Mercedes service center scanned the car, confirming Fault Code P019185 (Rail pressure sensor malfunction / signal above permissible limit value). The dealer applied an Engine Control Module software patch under Mercedes TSB LI07.70-P-078047.Second Incident (53,695 miles): Less than 3,000 miles lat… Look up ODI 11760688 at NHTSA ↗	1 ODI 11614976 Loss of propulsion at highway speeds with subsequent failure of digital light system at night resulting in injury crash Look up ODI 11614976 at NHTSA ↗	0
Exterior Lighting	6 ODI 11646060 High beam can't auto dim Fuel pump fail to operate, misfires, and shut down while driving Look up ODI 11646060 at NHTSA ↗ ODI 11529864 Sunday, June 25, when I was driving the car on the road, the engine shut off and the car stopped running. 3 warning lights show on screen: engine light; 48v Battery Service Required; 12v Battery service required. I used the break to park the car on the roadside after that. I tried many times to restart the car, Waited over one hour and 40 minutes it finally started again, the engine warning light was still on until the second day morning, and I was able to take pics as evident. 1. What component or system failed or malfunctioned, and is it a… Look up ODI 11529864 at NHTSA ↗ ODI 11536672 Unexpectedly and without any indication or warning, at [XXX] on [XXX] I experienced multiple system failures/engine light/critical warning lights/. Transmission error message states do not shift into gear, take for service. Engine check light on. Car would not start, car was unable to be put into park. Door alarm for transmission not in park was alarming audible. After car shut off and attempt to put into park the car would not engage into park and the car electronics malfunctioned, would not stop alarming despite off, multiple error messages, … Look up ODI 11536672 at NHTSA ↗	10 ODI 11627113 My vehicle suddenly starting getting moisture in the passenger side head light.Many people brought this my attention.After some time of moisture the head light begin to flicker on and off while I was driving.Then it just went out and stopped working.Eventually I took it to the dealer and they informed me that my vehicle didn't have a recall for this issue.As I search the Internet I found that lots of other customers experienced this same exact issue.I called Mercedes USA and they informed me to present the issue to you all. Thank You in advance… Look up ODI 11627113 at NHTSA ↗ ODI 11657172 I seen a recall for certain 2021 GLC 300 vehicles for moisture in right side headlamp, causing headlamp to blow (go out). This happened on my 2021 GLC 300. Same moisture issue, same year, same model, however, my vin number does not show that it has a recall. I believe this safety issue needs to be expanded to include my vehicle. Same issue, same year, same make and same model Look up ODI 11657172 at NHTSA ↗ ODI 11674539 Have been getting condensate inside vehicle headlights inwhich have cause the headlight to completely not work anymore.. There is no damage to headlight which means to be cause due to a problem with the seal. Checked with local and also statewide Mercedes advisors which was told there isn’t a recall for my vehicle inwhich I looked online and found an recall for vehicles just like the one I have.. Recall number 22V261000-Recall Date 04-14-2022. I’m asking for my vehicle to be inspected and repaired free of charge . Thanks and sorry for the bothe… Look up ODI 11674539 at NHTSA ↗	2 ODI 11629760 Attention Assist System Suspended notification comes on randomly on vehicle while driving, rendering driver defenseless with regard to safety warnings that would otherwise be in effect, such as blind spot assist, attention assist, which are vital components for safe driving. This has happened on numerous occasions, most recently on 12/06/2024 while driving under destination route guidance. It has also happened when car was stopped to retrieve mail at residence mail box and, at other times for no apparent reason, while driving. Each time when e… Look up ODI 11629760 at NHTSA ↗ ODI 11754184 The screen goes blank not only in the middle where the maps, air conditioning and radio is but the screen where the speed gas tank are as well. We have taken the car in at least 5 times stayed the issue and were told there’s no recall yet for the car. I see here that there is. The car was a Richmond Mercedes today the screen went down amd I was told there’s no fix but maybe I could look on the internet. So here I am! Look up ODI 11754184 at NHTSA ↗	2 ODI 11646060 High beam can't auto dim Fuel pump fail to operate, misfires, and shut down while driving Look up ODI 11646060 at NHTSA ↗ ODI 11568908 I have taken the delivery of this car on May 2023 and has been having many issues including but not limited to rear seatbelt malfunction that needed replacement. Recent major issue is constant 'check engine light on' for various issues. Below is the 'F' and 'I' items from 'initial quick test log' as of [XXX] and also attaching detail log file. No resolution or action has been taken after several trips to the dealership in past couple of weeks and not being able to drive due to safety concern. N127 - Control unit "Drivetrain" (PTCU) -F- N73/3*1 … Look up ODI 11568908 at NHTSA ↗	—	1 ODI 11219924 · 10,000 mi ELECTRONIC SHIFTIER ISSUE. CAR WILL NOT DO WHAT IS BEING INPUT TO THE SHIFTIER. PARTICULAR ISSUE WHEN GOING FROM PARK TO DRIVE, DRIVE TO REVERSE, OR PARK TO DRIVER OR REVERSE. (NOTE THAT THE PRESSURE ON BRAKE PEDAL HAS ALWAYS SEEMED EXCESSIVE TO ME. HAVE HAD ISSUE WHERE CAR GOES INTO NEUTRAL WHEN TRYING TO PLACE THE SHIFTIER INTO PARK. I HAVE HAD TIMES WHERE CLEARLY THE VEHICLE DOESN'T REGISTER THAT THE BRAKE IS ACTUATED WHEN IT IS. HAVE HAD INSTANCE WHERE VEHICLE STARTS OFF IN DRIVE AND ROLLS UNDER POWER AS IT DIDN'T SHIFT INTO PARK AS IN… Look up ODI 11219924 at NHTSA ↗	0	0
Power Train	12 ODI 11741952 Component Failure: The vehicle is equipped with the M274 2.0L turbocharged engine, which suffered a major internal mechanical defect. An authorized Mercedes-Benz dealership diagnosed the vehicle at 79,504 miles with a malfunction in the crankcase ventilation system alongside severe internal defects, quoting a total repair estimate of $9,851 to perform extensive engine work. Safety Risk: This known manufacturing defect involves premature failure and cracking of the pistons, which poses an immediate safety hazard due to potential catastrophic eng… Look up ODI 11741952 at NHTSA ↗ ODI 11443463 I was going through drive thru waiting in line, when suddenly the car started to accelerate sharply, I put two feet on the brakes to stop the forward motion of vehicle - could not stop or place in park or neutral. their was ample room from the vehicle in front.. slightly removed feet from brake, suv lunged at vehicle in front kept on lunging then came to a halt...vehicle went back to normal operation. Look up ODI 11443463 at NHTSA ↗ ODI 11737705 I have had my car for almost two years. This problem has been on-going the whole time. It happens intermittently, I never know. I will be driving it and usually when I am making a turn or pulling onto a main road, you press the gas to go and the car hesitates and makes a loud brooooooooom sound like it is trying to go or figure out what to do and if you are pulling out onto a main road with on comming traffic, this is dangerous. We have seen information that on the 2019 and 2018 GLC300's this has been documented, my car is a 2020 but it's the … Look up ODI 11737705 at NHTSA ↗	8 ODI 11144554 · 3,200 mi THE STEERING COLUMN STALK CONTROLS DRIVE, REVERSE, NEUTRAL AND PARKING. I STOPPED THE VEHICLE ON AN INCLINE IN A PARKING LOT. I HAD MY FOOT ON THE BRAKE. I SHIFTED INTO NEUTRAL. THE ENGINE WAS STILL RUNNING. I THOUGHT I PUSHED THE PARK BUTTON BUT THE CAR ROLLED BACK INTO ANOTHER VEHICLE. Look up ODI 11144554 at NHTSA ↗ ODI 11443463 I was going through drive thru waiting in line, when suddenly the car started to accelerate sharply, I put two feet on the brakes to stop the forward motion of vehicle - could not stop or place in park or neutral. their was ample room from the vehicle in front.. slightly removed feet from brake, suv lunged at vehicle in front kept on lunging then came to a halt...vehicle went back to normal operation. Look up ODI 11443463 at NHTSA ↗ ODI 11736351 On April 16, 2026, within minutes of being released from a certified dealership, my 2019 Mercedes-Benz GLC 300 suffered a sudden and total loss of propulsion while traveling at high speed on the Belt Parkway (NY). Despite depressing the accelerator, the vehicle failed to maintain speed and stalled in active traffic. This created an immediate life-safety hazard, forcing me to navigate across multiple lanes without engine power to avoid a high-speed rear-end collision. The vehicle was released to me by Mercedes-Benz of Brooklyn on April 16, 2026,… Look up ODI 11736351 at NHTSA ↗	2 ODI 11537315 VEHICLE SHUT DOWN WHILE DRIVING. WARNING LIGHTS ILLUMINATE, CHECK ENGINE LIGHT, DO NOT SHIFT INTO GEAR WARNING, 48V BATTERY WARNING, ETC. WOULD NOT STOP ALARMING. COULD NOT SHUT OFF CAR. COULD NOT PUT CAR INTO PARK. COULD NOT START CAR. WARNING BUZZER WOULD GO OFF ENTIRE TIME. CAR WAS ONLY ABLE TO BE STARTED WHEN REMOTE START REQUEST WAS INITIATED WHEN CAR WAS IN THIS MODE, CAR WAS STARTED BUT THEN SHUT OFF 10 SECONDS LATERS APP STATES, “CHECK ENGINE LIGHT ON” WIL SHUT OFF THE CAR. CAR BACK TO NORMAL AFTER EVENT APPROX 60 MIN BUT CHECK ENGINE L… Look up ODI 11537315 at NHTSA ↗ ODI 11566165 Brand new '24 GLC300 4MATIC. Engine light came on with no error message. Brought it in for service. Miscellaneous engine repair states: "Found current code POA7F00 in drivetrain control unit. Followed LI54.10-P-077250. Cleared codes. Drained 48V battery to below 25% SOC. Charged vehicle to 70% SOC. Job complete." Service foreman mentioned that the service performed may not resolve issue. He contacted Mercedes-Benz Engineering and said no fix at this time and no ETA. Left service with no more engine light on. However, it didn't take… Look up ODI 11566165 at NHTSA ↗	3 ODI 11737705 I have had my car for almost two years. This problem has been on-going the whole time. It happens intermittently, I never know. I will be driving it and usually when I am making a turn or pulling onto a main road, you press the gas to go and the car hesitates and makes a loud brooooooooom sound like it is trying to go or figure out what to do and if you are pulling out onto a main road with on comming traffic, this is dangerous. We have seen information that on the 2019 and 2018 GLC300's this has been documented, my car is a 2020 but it's the … Look up ODI 11737705 at NHTSA ↗ ODI 11559715 This is the 3rd incidence of this issue (July, Oct, Dec), but we have been advised that a software update is not yet available from the manufacturer. In all instances, we were travelling at a normal rate of in-city traffic (30-45 mph) and all of sudden the vehicle will not accelerate above 25 mph regardless of the position of the throttle. My dealer, Mercedes Benz of Tampa, advises that the problem can only be corrected permanently with a "software update" which is not yet available. This is a major safety issue, especially on the highway, a… Look up ODI 11559715 at NHTSA ↗ ODI 11760688 The vehicle is experiencing an intermittent, sudden, and life-threatening drop into "limp home mode" while driving, creating an severe speed differential with surrounding traffic.First Incident (50,584 miles): The vehicle entered limp mode. Authorized Mercedes service center scanned the car, confirming Fault Code P019185 (Rail pressure sensor malfunction / signal above permissible limit value). The dealer applied an Engine Control Module software patch under Mercedes TSB LI07.70-P-078047.Second Incident (53,695 miles): Less than 3,000 miles lat… Look up ODI 11760688 at NHTSA ↗	1 ODI 11219924 · 10,000 mi ELECTRONIC SHIFTIER ISSUE. CAR WILL NOT DO WHAT IS BEING INPUT TO THE SHIFTIER. PARTICULAR ISSUE WHEN GOING FROM PARK TO DRIVE, DRIVE TO REVERSE, OR PARK TO DRIVER OR REVERSE. (NOTE THAT THE PRESSURE ON BRAKE PEDAL HAS ALWAYS SEEMED EXCESSIVE TO ME. HAVE HAD ISSUE WHERE CAR GOES INTO NEUTRAL WHEN TRYING TO PLACE THE SHIFTIER INTO PARK. I HAVE HAD TIMES WHERE CLEARLY THE VEHICLE DOESN'T REGISTER THAT THE BRAKE IS ACTUATED WHEN IT IS. HAVE HAD INSTANCE WHERE VEHICLE STARTS OFF IN DRIVE AND ROLLS UNDER POWER AS IT DIDN'T SHIFT INTO PARK AS IN… Look up ODI 11219924 at NHTSA ↗	—	0	0
Steering	0	4 ODI 11480906 Vehicle vibrates quite violently when hit some potholes. Steering wheel is the part that vibrates more but vibration is felt throughout the vehicle. It is more prevalent at highway between 55-65 mph speed. I also noticed that car shakes unusually and tilts to one side at times making it quite uncomfortable for driver. back tires make slipping noice on potholes and feels like car is going to be unstable momentarily . All these issues are putting driver and others at risk. I joined Facebook page of glc300 owners and almost everyone reported thi… Look up ODI 11480906 at NHTSA ↗ ODI 11530039 Excessive steering wheel vibration after the software update. Mercedes main office in Georgia was notified and they instructed there is a fix after I threatened the lemon law. Time on dash will read random times, then will fix itself. Air conditioner will not run cold to drivers side. Look up ODI 11530039 at NHTSA ↗ ODI 11538722 This 2023 GLC, a newly redesigned model, has a number of issues. The two most severe are the adaptive speed limit and the lane keeping assist. I had to disable the traffic sign recognition feature because I was on I-95 in Maryland where the posted speed limit was 65. The car abruptly slowed me down to 35 because it saw an exit sign speed limit but I was not on the exit. I was lucky the car behind me didn't hit me. A warning would be good but to brake the vehicle for a speed limit sign seems problematic. The more serious issue is the lane … Look up ODI 11538722 at NHTSA ↗	3 ODI 11516174 There is a squeaky noise from the suspension, shock absorbers or somewhere in that area. They have fixed the issue multiple times. Kept my car in the workshop for days multiple times but it’s not getting fixed. They probably sold me a lemon. I need help in rectifying this issue. Look up ODI 11516174 at NHTSA ↗ ODI 11696517 Loss of Steering Control at Highway Speeds – 2022 Mercedes-Benz GLC300 Vehicle: 2022 Mercedes-Benz GLC300, VIN [XXX] Dates of Incident: September 13th and October 4th Mileage at Time of Incident: 39,500 While driving on a four-lane expressway at highway speeds, my vehicle suddenly and completely lost steering control, resulting in a total inability to steer. First Incident The first event occurred during light rain with mildly wet road conditions. Without warning, the vehicle hydroplaned and violently crossed all four lanes approximately 20… Look up ODI 11696517 at NHTSA ↗ ODI 11682705 The driver’s seat automatically adjusted while the vehicle was in drive, causing me to lose the ability to reach the pedals and almost resulting in a collision. While driving my 2025 Mercedes-Benz GLC 300 4MATIC with my children in the car, I stopped at a stop sign when the driver’s seat suddenly began adjusting itself backward. My husband also drives this vehicle, and because I had not logged into my driver profile, the car began moving the seat and controls to his saved position, while the car was in drive. The seat moved so far back that I… Look up ODI 11682705 at NHTSA ↗	1 ODI 11614976 Loss of propulsion at highway speeds with subsequent failure of digital light system at night resulting in injury crash Look up ODI 11614976 at NHTSA ↗	0	0	—	1 ODI 11534401 The first day the car was picked up by us, we turned back and complained about the steering wheel and drivers' seat vibration. They checked it and we were told they cannot find anything. We were told to drive the car for awhile and return it if this complaint persists. We returned it to Okemos Mercedes with the same complaint. They said it is the tires and they replaced the right front tire. I told them I was driving since I was 17 and I know the difference between body and tire problems. We were told to try it again and come back and if … Look up ODI 11534401 at NHTSA ↗
Service Brakes	3 ODI 11748161 While driving down a busy neighborhood street 2 lanes with cars on both sides making it a 1 lane road pulled over to the side a little to let cars pass. All of a sudden ALL electrical and engine stopped and turned off. Only thing that was powered was instrument cluster with multiple warnings like SRS Malfunction, Steering Malfunction, SOS Inoperative, Parking Brake and more. We believe the car had also shifted to park on its own. No power to anything not even hazard lights. Nothing electrical had any sort of power. Could not even turn car off… Look up ODI 11748161 at NHTSA ↗ ODI 11547469 2023 Mercedes Benz GLC 300. Several Electrical, Braking, Collision, Check Battery related issues noted. At approximately 500 miles on vehicle battery system began sending critical voltage error messages to notification app after the vehicle had been turned off. --Owner recharged battery on front terminals. At various intervals, check engine light would come on while driving, sometimes for days at a time. Sometimes for less than an hour, sometimes for a day or so but not long enough to get into a MB Dealer.---MB has less than 5,000 Miles. … Look up ODI 11547469 at NHTSA ↗ ODI 11595907 First of all, this is a new car produced in 2023. Since I bought it, the engine has shown alarms more than four times. Every time I went to the 4S shop, no problems were found. Today, the engine still shows a yellow alarm. Secondly, the brake disc makes a loud noise when I park the car and then start the accelerator. Mercedes-Benz has not paid attention to these problems. I think it greatly affects driving safety.This car has been sent to the 4S store many times, but the inspection has always failed. The above-mentioned problems with the car ha… Look up ODI 11595907 at NHTSA ↗	7 ODI 11349114 · 21,000 mi WHEN I WAS PULLING INTO A PARKING SPOT AT A LOW SPEED, THE CAR ACCELERATED AND LURCHED FORWARD, HITTING A WALL, WHICH DEPLOYED THE AIRBAGS. WHEN THE CAR STARTED TO ACCELERATE, I HIT THE BRAKES BUT THEY DID NOT ENGAGE. Look up ODI 11349114 at NHTSA ↗ ODI 11742050 My vehicle got stuck on a EPB(electronic parking brake) and I was unable to disengage it. I tried a few things and none worked. I contacted Mercedes to tow it to the dealer and the tow truck came and driver had to “drag” my vehicle on to the flatbed. My car has been at Mercedes for 5 days now and they gave me a response saying that they are having a hard time trying to disengage the EPB. I’m aware of a EPB recall but my model is specified as being a part of it, however the issue is closely related to the recall so please take further interest i… Look up ODI 11742050 at NHTSA ↗ ODI 11748161 While driving down a busy neighborhood street 2 lanes with cars on both sides making it a 1 lane road pulled over to the side a little to let cars pass. All of a sudden ALL electrical and engine stopped and turned off. Only thing that was powered was instrument cluster with multiple warnings like SRS Malfunction, Steering Malfunction, SOS Inoperative, Parking Brake and more. We believe the car had also shifted to park on its own. No power to anything not even hazard lights. Nothing electrical had any sort of power. Could not even turn car off… Look up ODI 11748161 at NHTSA ↗	1 ODI 11562589 I have had issues with squeaky, very loud noises at slow speed and reverse braking. I have had this issue since I purchased this vehicle. I have brought it in a few times to have 2 different dealers fix the noise as I believe it is a safety issue as well. They said this is a common issue with GLC that they have noises while braking but there is no fix. I had an advisor drive the vehicle and witness loud squeaky noises while braking. Spending a lot of money on this vehicle, and Mercedes should fix this issue. I believe the brake system falls und… Look up ODI 11562589 at NHTSA ↗	0	0	0	1 ODI 11534401 The first day the car was picked up by us, we turned back and complained about the steering wheel and drivers' seat vibration. They checked it and we were told they cannot find anything. We were told to drive the car for awhile and return it if this complaint persists. We returned it to Okemos Mercedes with the same complaint. They said it is the tires and they replaced the right front tire. I told them I was driving since I was 17 and I know the difference between body and tire problems. We were told to try it again and come back and if … Look up ODI 11534401 at NHTSA ↗	—

Co-reporting does not establish that one component caused another concern.

Recurring narrative patterns

Specific keyword mentions beyond broad component labels. Matching includes negations and comparisons and does not confirm a diagnosis.

Search patterns

8 patterns with matching reports.

Warning lights and dashboard alerts

98 mentions · 23.3% of complaints

Median mileage: 35,000 mi (27 usable records).

ODI 11339659 · 8,000 mi

TL* THE CONTACT OWNS A 2018 MERCEDES BENZ GLC300. THE CONTACT STATED THAT AT START-UP, THE STEERING CEASED WITH THE POWER STEERING ASSIST WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TOWED TO CRITZ INC MERCEDES-BENZ OF SAVANNAH (7000 ABERCORN ST, SAVANNAH, GA 31406) TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE FAILURE WAS DUE TO AN UNSTATED SOFTWARE FAILURE. THE SOFTWARE WAS UPDATED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 8,000.*BF*JB

Look up ODI 11339659 at NHTSA ↗

ODI 11364560 · 57,000 mi

TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ GLC300. THE CONTACT STATED THAT THE AIR BAG WARNING LIGHT WAS ILLUMINATED AT START-UP. THE CONTACT TOOK THE VEHICLE TO MERCEDES-BENZ OF MYRTLE BEACH (936 JASON BLVD, MYRTLE BEACH, SC 29577) WHERE SHE WAS INFORMED THAT THE AIR BAG CONTROL UNIT PROCESSOR WAS DEFECTIVE AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND INFORMED THE CONTACT THAT THE VEHICLE WAS NOT UNDER RECALL. THE FAILURE MILEAGE WAS APPROXIMATELY 57,000.

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ODI 11499373

Check engine light came on with code P052E : Positive Crankcase Ventilation Regulator Valve Performance.

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Matching rule

\b(warning light\w*|check engine|dashboard warning\w*|malfunction indicator)\b

Stalling or loss of power

33 mentions · 7.9% of complaints

Median mileage: 19,369 mi (5 usable records).

ODI 11632530

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ODI 11676731

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ODI 11470529

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Matching rule

\b(stall\w*|loss of power|lost power|engine shut\w* off)\b

Battery drain and no-start mentions

10 mentions · 2.4% of complaints

Median mileage: Unavailable (0 usable records).

ODI 11517337

Our 2019 GLC with 25,000 miles flooded from the inside out with no warning -- a terrifying safety concern. One day when driving to work the car felt slightly odd while driving on streets in Washington, DC. Pulled over to the side of the road and car would not start. Dealer sent tech and jumped the car after a few attempts. Dealer/repair thought the car had a bad battery and voltage dip limiter. Repaired both and returned car. The next day the car drove in the morning but would not start again; was towed to dealer. Dealer/repair reported the…

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ODI 11421457

Entered parked vehicle and noticed very strong gas fumes. Vehicle would not start. Looked under the vehicle and noticed very large quantity of gasoline on the ground. Vehicle was towed to Mercedes dealership in Rochester, Michigan. Diagnosis was an incorrectly installed fuel line bracket. New bracket was installed and problem was corrected.

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ODI 11535976

The 2023 GLC300 would not start. The internal alarms kept going off, the push-start/stop would not respond. The vehicle was acting like it was being stolen, this lasted for 75 to 80 minutes. The display said 12V On-Board Electrical System Service Required and Blind Spot Assist Inoperative - over and over again. Couldn't get the key to make car lock or unlock. The car would not turn on, it would not turn off. The alarm message was persistent. Had to call a tow-truck to take it in for service. After 3+ hours the car restarted. Mercedes initiated …

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Matching rule

Brake response concerns

9 mentions · 2.1% of complaints

Median mileage: 11,000 mi (6 usable records).

ODI 11219924 · 10,000 mi

ELECTRONIC SHIFTIER ISSUE. CAR WILL NOT DO WHAT IS BEING INPUT TO THE SHIFTIER. PARTICULAR ISSUE WHEN GOING FROM PARK TO DRIVE, DRIVE TO REVERSE, OR PARK TO DRIVER OR REVERSE. (NOTE THAT THE PRESSURE ON BRAKE PEDAL HAS ALWAYS SEEMED EXCESSIVE TO ME. HAVE HAD ISSUE WHERE CAR GOES INTO NEUTRAL WHEN TRYING TO PLACE THE SHIFTIER INTO PARK. I HAVE HAD TIMES WHERE CLEARLY THE VEHICLE DOESN'T REGISTER THAT THE BRAKE IS ACTUATED WHEN IT IS. HAVE HAD INSTANCE WHERE VEHICLE STARTS OFF IN DRIVE AND ROLLS UNDER POWER AS IT DIDN'T SHIFT INTO PARK AS IN…

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ODI 11433403 · 10,000 mi

The contact owns a 2019 Mercedes Benz GCLCLASS. The contact stated that the brake system failed. The contact stated when driving at 25mph when the brake pedal was engaged the brake pedal went to the floorboard the vehicle crashed a pole and came to stop. there were no warning lights before during or after the failure occurred. The vehicle was towed to a mechanic shop. The vehicle was not repaired. The manufacturer was contacted. The approximate failure mileage was 10,000.

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ODI 11680717 · 63,500 mi

The contact owns a 2019 Mercedes-Benz GLC300. The contact stated that while stopped at a stoplight on a hill, the vehicle rolled backwards. The contact stated that the brake pedal was depressed to stop the vehicle from rolling backwards, preventing the vehicle from hitting the vehicle behind. The contact stated that the failure had occurred several times. The vehicle was taken to the dealer; however, the failure was not duplicated. The contact was informed that rolling backwards was normal. The manufacturer was not made aware of the failure. Th…

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Matching rule

Hard or delayed shifting

9 mentions · 2.1% of complaints

Median mileage: 30,500 mi (4 usable records).

ODI 11349114 · 21,000 mi

WHEN I WAS PULLING INTO A PARKING SPOT AT A LOW SPEED, THE CAR ACCELERATED AND LURCHED FORWARD, HITTING A WALL, WHICH DEPLOYED THE AIRBAGS. WHEN THE CAR STARTED TO ACCELERATE, I HIT THE BRAKES BUT THEY DID NOT ENGAGE.

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ODI 11687525

While pulling into a parking spot with my foot hovering above/on the break, the car lurched forward as if someone had floored the gas pedal. As my foot was already on the break, I slammed down onto the break and the car came to a stop, several feet ahead of the top of the parking spot, and into the woods. I called roadside assistance for the vehicle to be towed to the dealership for repair, as I did not find it safe to drive it. The dealership was unable to replicate the issue, but they told me that due to the severity of the issue, they weren'…

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ODI 11700738 · 60,000 mi

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Matching rule

Steering assistance concerns

6 mentions · 1.4% of complaints

Median mileage: 39,000 mi (2 usable records).

ODI 11339659 · 8,000 mi

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ODI 11560725 · 70,000 mi

The contact owns a 2018 Mercedes-Benz GLC300. The contact stated that while driving at various speeds, the steering wheel malfunctioned, and became difficult to turn in either direction. The vehicle was taken to the local dealer who diagnosed that the electronic power steering module was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was offered. The approximate failure mileage was 70,000.

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ODI 11583628

the power steering wheel adjustment stopped working, leaving the steering wheel stuck in a very unconfutable position for driving. The car just ended its 4 yr warranty

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Matching rule

\b(power steer\w*|steering assist\w*|steering lock\w*|steering wheel lock\w*)\b

Fuel smell or leak mentions

4 mentions · 1.0% of complaints

Median mileage: 17,107 mi (1 usable records).

ODI 11666424

On May 22, 2025, while parked, my 2019 Mercedes-Benz GLC300 spontaneously caught fire, completely destroying the vehicle. Thankfully, no one was inside, and no injuries occurred, but the property damage was significant. I later discovered Recall 21V961000 / Campaign 2022030003 affecting some 2019 GLC300s for fuel leaks at the fuel rail/injector interface, which pose a serious fire hazard. Further research has shown reports of loose ground connections in these vehicles as well, increasing the risk of sparks igniting leaked fuel. Given that my …

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ODI 11724468

The engine starts shaking, smell of gas car than stops while driving, could caused an accident and severely injured someone on the freeway. This is a major safety issue after further researching this particular issue MB of Canada issue a warranty letter extension for this particular but nothing for US.

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ODI 11685600

Vehicle has a significant engine oil leak without being driven. Engine oil electronic meter still shows engine oil to be in "Ok" range. Vehicle is 2023 with only 19680 miles and is rarely driven till the last 2 months. Other 2023 Model Year MB GLC300's manufactured at the same Bremen Germany plant are already being recalled for engine and fuel leaks, however, this one is not on the list. This vehicle is also the 2.0L Inline 4 engine and may be the same engine as the others being recalled. The others are recalled due to an imperfect sea…

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Matching rule

\b(fuel leak\w*|gas leak\w*|gas(?:oline)? smell|smell\w* (?:of )?(?:fuel|gas))\b

Oil consumption or dilution

1 mentions · 0.2% of complaints

Median mileage: Unavailable (0 usable records).

ODI 11434738

The contact owns a 2021 Mercedes-Benz GLC300. The contact stated that while his wife was driving at an undisclosed speed, the "Add 1 quart of oil" message was illuminated. The contact's wife did not pull over and continued driving while the "Stop driving" warning message was illuminated. The contact's wife was able to drive to the residence. The contact noticed there was a quart of oil on the floor from the engine compartment and detected a burning oil odor. The vehicle was towed to the dealer and the dealer replaced the O-ring. The vehicle was…

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Matching rule

\b(oil consumption|burn\w* oil|consum\w* oil|oil dilution|gas(?:oline)? in (?:the )?oil)\b