U.S. public vehicle records

2018 Mercedes-Benz GLC 300 problems and owner complaints

Explore the records behind recurring owner reports.

Key facts

87 owner complaints analyzed

12 distinct recall campaigns

10,500 mi median reported failure mileage

Scope: 2018 model year. Data updated: 2026-10-01 (October 1, 2026). 31 complaints include usable failure mileage. View data status.

Owner-reported patterns

Most common problems

Engine is the most frequently named component, appearing in 28 of 87 complaints (32.2%). A complaint can name multiple components.

Recurring terms in complaint narratives
Topic	Matching reports	Share of complaints
Steering behavior	10	11.5%
Transmission and shifting	9	10.3%
Braking behavior	8	9.2%
Engine operation	2	2.3%
Electrical and battery issues	1	1.1%
Fuel system concerns	1	1.1%

Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.

Component breakdown

Number of unique complaints naming each component. Top eight shown.

Engine

Unknown Or Other

Electrical System

Seat Belts

Fuel/Propulsion System

Power Train

Air Bags

Structure:Body

Engine: 28; Unknown Or Other: 20; Electrical System: 13; Seat Belts: 8; Fuel/Propulsion System: 7; Power Train: 7; Air Bags: 6; Structure:Body: 6

Reported problems by failure mileage

Complaint counts in mileage bands. These are not failure rates per vehicle or mile.

Under 25,000

25,000 to 49,999

50,000 to 74,999

75,000 to 99,999

100,000 to 149,999

150,000 and above

Under 25,000: 22; 25,000 to 49,999: 2; 50,000 to 74,999: 6; 75,000 to 99,999: 1; 100,000 to 149,999: 0; 150,000 and above: 0

Under 25,000 miles has the most reports with usable mileage (22). 56 complaints have missing, zero or invalid mileage.

Complaints over time

Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.

2018

2019

2020

2021

2022

2023

2024

2025

2026

2018: 12; 2019: 6; 2020: 5; 2021: 1; 2022: 8; 2023: 26; 2024: 16; 2025: 9; 2026: 4

Pattern summary

Engine leads the component reports. Steering behavior appears in 10 complaint narratives. Transmission and shifting appears in 9 complaint narratives. Braking behavior appears in 8 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.

Calculated from recorded counts. An AI narrative has not been published for this selection.

Complaint evidence

Examples provide context, not a representative sample or a verified diagnosis.

Owner report 11075967 · 2018-03-02 (March 2, 2018)

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.

Owner-reported narrative. 500 miles reported. Look up ODI 11075967 at NHTSA ↗

Owner report 11144554 · 2018-10-31 (October 31, 2018)

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.

Owner-reported narrative. 3,200 miles reported. Look up ODI 11144554 at NHTSA ↗

Owner report 11067322 · 2018-02-06 (February 6, 2018)

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…

Owner-reported narrative. 1,500 miles reported. Look up ODI 11067322 at NHTSA ↗

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 11698021 · 2025-11-06 (November 6, 2025)

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…

Owner-reported narrative. Look up ODI 11698021 at NHTSA ↗

Owner report 11576098 · 2024-03-07 (March 7, 2024)

Car failed to accelerate due to faulty fuel pump, fuel tank, etc. Car stopped and died several times in the middle of heavy traffic. Mercedes Benz of West Houston, Sewell Dealership, has my car that was towed to them late afternoon on 3/5/2024. I have owned a Mercedes for over 40 years and never had this occur or be scared due to the car’s lack of performance.

Owner-reported narrative. Look up ODI 11576098 at NHTSA ↗

Explore the data

Vehicle analysis explorer

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

Data completeness

87 unique complaints in this selection. Analysis snapshot: 2026-10-01.

35.6%Usable mileage31 / 87 records

100.0%Valid incident date87 / 87 records

100.0%Valid filing date87 / 87 records

100.0%Ordered incident and filing dates87 / 87 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	Too few reports for a range	6,000 mi	3 (sparse)	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 ↗
Unknown Or Other	200–10,500 mi	323 mi	5	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 ↗
Electrical System	Too few reports for a range	6,062 mi	4 (sparse)	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 ↗
Seat Belts	Too few reports for a range	34,000 mi	2 (sparse)	ODI 11343895 · 20,000 mi THE SEAT BELT LATCH PLATES (THE PARTS THAT INSERT INTO THE BUCKLES) FOR THE REAR SEAT RETRACTED INTO THE INTERIOR PANELING, PREVENTING THE OCCUPANT FROM BEING ABLE TO USE THE SEAT BELT. (REFER TO SIMILAR RECALL # 18V177000). ALTHOUGH THERE WAS A RECALL FOR THE SAME ISSUE, MY VIN WAS NOT INCLUDED. I WAS ULTIMATELY ABLE TO FIX IT ON MY OWN BY FISHING IT OUT FROM THE INTERIOR PANEL WITH MY FINGERS WHICH WAS DIFFICULT TO DO. IT IS NOT CLEAR HOW IT HAPPENED, BUT WE THINK IT WAS AFTER THE REAR SEAT WAS DOWN AND WHEN IT WAS RETURNED TO IT'S NORMAL… Look up ODI 11343895 at NHTSA ↗ ODI 11590569 · 48,000 mi The contact owns a 2018 Mercedes-Benz GLC300. The contact stated that when the driver's side seat belt was buckled, the seat belt alarm chimed as if the seat belt was not buckled. The contact had to buckle and unbuckle the seat belt several times before the warning chime stopped. The contact had taken the vehicle to a local dealer who diagnosed the vehicle and determined that there was no issue with the seat belt system. The vehicle was not repaired. The contact stated that the failure was intermittent. The contact researched online and related… Look up ODI 11590569 at NHTSA ↗
Fuel/Propulsion System	Too few reports for a range	14,400 mi	1 (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 ↗
Power Train	Too few reports for a range	6,600 mi	4 (sparse)	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 ↗
Air Bags	Too few reports for a range	60,000 mi	3 (sparse)	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. Look up ODI 11364560 at NHTSA ↗ ODI 11586069 · 72,000 mi The contact owns a 2018 Mercedes-Benz GLC300. The contact stated while driving approximately 30 MPH, the air bag warning light illuminated. Additionally, the contact stated that he observed a rattling noise emanating from the steering column while making right turns. The vehicle was taken to an independent mechanic where it was diagnosed that the clockspring needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 72,000. Look up ODI 11586069 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 ↗
Structure:Body	Too few reports for a range	9,600 mi	2 (sparse)	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 11233534 · 16,000 mi WHILE DRIVING ON THE HIGHWAY MY SUNROOF SUDDENLY EXPLODED. Look up ODI 11233534 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
2024-11	0	None	No examples available for this selection.
2024-12	2	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 ↗
2025-01	1	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 ↗
2025-02	0	None	No examples available for this selection.
2025-03	1	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 ↗
2025-04	0	None	No examples available for this selection.
2025-05	0	None	No examples available for this selection.
2025-06	0	None	No examples available for this selection.
2025-07	1	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 ↗
2025-08	0	None	No examples available for this selection.
2025-09	1	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 ↗
2025-10	0	None	No examples available for this selection.
2025-11	3	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	2	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 ↗
2026-01	0	None	No examples available for this selection.
2026-02	0	None	No examples available for this selection.
2026-03	1	None	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 ↗
2026-04	1	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 ↗
2026-05	0	None	No examples available for this selection.
2026-06	1	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 ↗
2026-07	1	None	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 ↗
2026-08	0	None	No examples available for this selection.
2026-09	0	None	No examples available for this selection.
2026-10 (partial)	0	None	No examples available for this selection.

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	Unknown Or Other	Electrical System	Seat Belts	Fuel/Propulsion System	Power Train	Air Bags	Structure:Body
Engine	—	4 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 ↗	5 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 ↗	0	4 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 ↗	1 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 ↗	0	0
Unknown Or Other	4 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 ↗	—	3 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 ↗	0	0	0	0	0
Electrical System	5 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 ↗	3 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 ↗	—	0	0	1 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 ↗	1 ODI 11535378 All of the buttons on my steering wheel including the horn stopped working. I hear a clicking noise when i turn the steering wheel and the passenger air bag light randomly goes on and off. This leads me to believe the clock spring is broken. If the clock spring is the problem, this could create an airbag malfunction causing it to not deploy when needed or randomly deploy while i’m driving. Look up ODI 11535378 at NHTSA ↗	1 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 ↗
Seat Belts	0	0	0	—	0	0	1 ODI 11486199 Driver's seatbelt is latched and it shows as unlatched with tge seatbelt sensor going off. On the dashboard it also shows the airbag icon Look up ODI 11486199 at NHTSA ↗	1 ODI 11098638 TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ GLC300. THE CONTACT RECEIVED A RECALL NOTICE FOR NHTSA CAMPAIGN NUMBER: 18V177000 (STRUCTURE, SEAT BELTS) MONTHS AGO. THE DEALER (ZT MOTORS OF FORT WALTON BEACH, 1000 N BEAL PKWY NW, FORT WALTON BEACH, FL 32547, [phone removed]) STATED THAT PARTS WERE UNAVAILABLE AND DID NOT KNOW WHEN THEY WOULD ARRIVE. THE MANUFACTURER WAS CONTACTED TO DETERMINE WHEN THE PART WOULD BE SUPPLIED TO THE DEALER. THE VIN WAS NOT AVAILABLE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. Look up ODI 11098638 at NHTSA ↗
Fuel/Propulsion System	4 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 ↗	0	0	0	—	0	0	0
Power Train	1 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 ↗	0	1 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 ↗	0	0	—	0	1 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 ↗
Air Bags	0	0	1 ODI 11535378 All of the buttons on my steering wheel including the horn stopped working. I hear a clicking noise when i turn the steering wheel and the passenger air bag light randomly goes on and off. This leads me to believe the clock spring is broken. If the clock spring is the problem, this could create an airbag malfunction causing it to not deploy when needed or randomly deploy while i’m driving. Look up ODI 11535378 at NHTSA ↗	1 ODI 11486199 Driver's seatbelt is latched and it shows as unlatched with tge seatbelt sensor going off. On the dashboard it also shows the airbag icon Look up ODI 11486199 at NHTSA ↗	0	0	—	0
Structure:Body	0	0	1 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 ↗	1 ODI 11098638 TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ GLC300. THE CONTACT RECEIVED A RECALL NOTICE FOR NHTSA CAMPAIGN NUMBER: 18V177000 (STRUCTURE, SEAT BELTS) MONTHS AGO. THE DEALER (ZT MOTORS OF FORT WALTON BEACH, 1000 N BEAL PKWY NW, FORT WALTON BEACH, FL 32547, [phone removed]) STATED THAT PARTS WERE UNAVAILABLE AND DID NOT KNOW WHEN THEY WOULD ARRIVE. THE MANUFACTURER WAS CONTACTED TO DETERMINE WHEN THE PART WOULD BE SUPPLIED TO THE DEALER. THE VIN WAS NOT AVAILABLE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. Look up ODI 11098638 at NHTSA ↗	0	1 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 ↗	0	—

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

5 patterns with matching reports.

Warning lights and dashboard alerts

17 mentions · 19.5% of complaints

Median mileage: 57,000 mi (5 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

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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

Hard or delayed shifting

2 mentions · 2.3% of complaints

Median mileage: 21,000 mi (1 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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Matching rule

Stalling or loss of power

2 mentions · 2.3% of complaints

Median mileage: Unavailable (0 usable records).

ODI 11632530

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ODI 11676731

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Matching rule

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

Steering assistance concerns

2 mentions · 2.3% 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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Matching rule

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

Brake response concerns

1 mentions · 1.1% of complaints

Median mileage: 10,000 mi (1 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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Matching rule