U.S. public vehicle records

2018 Mercedes-Benz C 300 problems and owner complaints

Explore the records behind recurring owner reports.

Key facts

99 owner complaints analyzed

18 distinct recall campaigns

50,000 mi median reported failure mileage

Scope: 2018 model year. Data updated: 2026-10-01 (October 1, 2026). 21 complaints include usable failure mileage. View data status.

Owner-reported patterns

Most common problems

Engine is the most frequently named component, appearing in 34 of 99 complaints (34.3%). A complaint can name multiple components.

Recurring terms in complaint narratives
Topic	Matching reports	Share of complaints
Steering behavior	11	11.1%
Electrical and battery issues	9	9.1%
Braking behavior	6	6.1%
Engine operation	3	3.0%
Transmission and shifting	2	2.0%

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

Steering

Electrical System

Fuel/Propulsion System

Structure:Body

Structure

Air Bags

Engine: 34; Unknown Or Other: 20; Steering: 11; Electrical System: 10; Fuel/Propulsion System: 9; Structure:Body: 8; Structure: 6; Air Bags: 4

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: 7; 25,000 to 49,999: 3; 50,000 to 74,999: 7; 75,000 to 99,999: 3; 100,000 to 149,999: 1; 150,000 and above: 0

Under 25,000 miles has the most reports with usable mileage (7). 78 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: 4; 2019: 16; 2020: 1; 2021: 5; 2022: 13; 2023: 24; 2024: 22; 2025: 9; 2026: 5

Pattern summary

Engine leads the component reports. Steering behavior appears in 11 complaint narratives. Electrical and battery issues appears in 9 complaint narratives. Braking behavior appears in 6 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 11169926 · 2019-01-14 (January 14, 2019)

I AM WRITING TO SHARE MY DISSATISFACTION WITH MERCEDES BENZ. I HAVE A 2018 C300 THAT WAS PURCHASED BRAND NEW. THE STEERING WHEEL IS DETERIORATING AND I ADDRESSED THE SERVICE DEPARTMENT OF ONTARIO,CA. I OPENED A CASE WITH CORPORATE AND SPOKE WITH CASE MANAGER JAMES WHO WAS NOT HELPFUL, AND REFUSED TO PUT IN A ESCALATION TO MANAGEMENT ABOUT MY SITUATION. HE ACTUALLY THOUGHT MY CALL WAS FUNNY AND LAUGHED AT ONE POINT. I WAS INSULTED BY MERCEDES BENZ WITH THE COMMENT YOU GUYS TOLD ME ABOUT MY WHEEL, AND HOW YOU WILL NOT STAND BEHIND THE STANDAR…

Owner-reported narrative. Look up ODI 11169926 at NHTSA ↗

Owner report 11174248 · 2019-02-04 (February 4, 2019)

TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 18V850000 (STEERING). THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. MERCEDES-BENZ OF LONG BEACH (2300 E SPRING ST, SIGNAL HILL, CA 90755, [phone removed]) WAS CONTACTED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT.

Owner-reported narrative. Look up ODI 11174248 at NHTSA ↗

Owner report 11413611 · 2021-04-23 (April 23, 2021)

TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 21V058000 (COMMUNICATION, ELECTRICAL SYSTEM) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS NOT YET AVAILABLE. THE CONTACT STATED THAT MERCEDES-BENZ OF SAN FRANCISCO (LOCATED AT 500 8TH ST, SAN FRANCISCO, CA 94103, [phone removed]) EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS NOTIFIED OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT. ## VIN PASSED ## MERCEDES-BENZ …

Owner-reported narrative. Look up ODI 11413611 at NHTSA ↗

Owner report 11475159 · 2022-07-21 (July 21, 2022)

The contact owns a 2018 Mercedes-Benz C300. The contact stated that the SOS warning light was illuminated. Upon testing the SOS system, the contact stated that the system failed to operate as needed. The contact then received notification of NHTSA Campaign Number: 22V365000 (Electrical System, Communication). The vehicle was taken to the dealer for service, however, the failure persisted. The vehicle was taken back to the dealer on multiple occasion for multiple repairs related to the failure. Recently, the contact was informed that the Hermes…

Owner-reported narrative. Look up ODI 11475159 at NHTSA ↗

Owner report 11102627 · 2018-06-19 (June 19, 2018)

I BROUGHT MY VEHICLE TO MERCEDES BENZ FOR A REAR TAIL LIGHT RECALL. WHEN I PICKED UP MY VEHICLE THE BRAKE PEDAL WENT TO THE FLOOR. NOTE: THIS WAS NOT HAPPENING PRIOR TO ME DROPPING THE CAR OFF TO THE DEALER. THE SERVICE MANAGER DROVE MY CAR BACK TO THE MECHANIC. I WAS THEN TOLD THAT, IRONICALLY, THE BRAKE LINE RUSTED (METAL LINE) OUT CAUSING THE BRAKE FLUID TO LEAK OUT. ALSO, PASSENGER FRONT SEAT SENSOR WENT. SEAT WILL NOT MOVE BACK OR FORWARD.

Owner-reported narrative. 75,000 miles reported. Look up ODI 11102627 at NHTSA ↗

Owner report 11163276 · 2018-12-24 (December 24, 2018)

FORWARD COLLISON SYSTEM ($1700 OPTION) AEB, DOES NOT WORK AS DESCRIBED IN MB LITERATURE OR WEBSITE. IN MY OPINION, THE FORWARD COLLISION AVOIDANCE SYSTEM (AEB) IN MY 7 MO. OLD 2018 MERCEDES C300 SIMPLY DOES NOT WORK. I SPECIAL ORDERED THE CAR WITH THE 997 PKG THAT INCLUDES, DRIVER ASSISTANCE, BAS+, AND DISTRONIC THE MB MANUAL STATES: 'IF ACTIVE BRAKE ASSIST DETECTS THAT THERE IS A RISK OF COLLISION, YOU WILL BE WARNED VISUALLY AND ACOUSTICALLY. IF YOU DO NOT REACT AUTONOMOUS BRAKING CAN BE INITIATED IN CRITICAL SITUATIONS.' AND FURTHER THAT…

Owner-reported narrative. 5,000 miles reported. Look up ODI 11163276 at NHTSA ↗

Owner report 11519686 · 2023-04-30 (April 30, 2023)

The code I received is p052e from the check engine light. This can cause the car to stall out mid way through driving and cause a potential fatal accident. This is a common issue across C300 And GLC benz.

Owner-reported narrative. Look up ODI 11519686 at NHTSA ↗

Owner report 11548498 · 2023-10-05 (October 5, 2023)

Engine code: P052e - the widest spread engine issue on Mercedes which fails emissions testing. Crankcase ventilator issue which leads to stalling.

Owner-reported narrative. Look up ODI 11548498 at NHTSA ↗

Owner report 11610269 · 2024-08-22 (August 22, 2024)

The contact owns a 2018 Mercedes-Benz C300. While driving at various speeds, the contact could hear an abnormal sound from the transmission. The vehicle was taken to a local independent mechanic where it was diagnosed that the rack and pinion needed to be replaced. The vehicle was not repaired. The vehicle was then taken to a local dealer for diagnosis, but the failure could not be replicated. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 57,000.

Owner-reported narrative. 57,000 miles reported. Look up ODI 11610269 at NHTSA ↗

Owner report 11744612 · 2026-06-16 (June 16, 2026)

Transmission failed, yes available for inspection Very bad safety issue Yes it has been confirmed by dealship Yes by the deanship Yes there was warning lamps that appeared in January 2026

Owner-reported narrative. Look up ODI 11744612 at NHTSA ↗

Explore the data

Vehicle analysis explorer

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

Data completeness

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

21.2%Usable mileage21 / 99 records

100.0%Valid incident date99 / 99 records

100.0%Valid filing date99 / 99 records

100.0%Ordered incident and filing dates99 / 99 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	2017	2018	2019	2020	2021	2022	2023	2024	2025	2026
Engine	7735.6% ODI 10978794 "TAKATA RECALL" I HAD MY 2017 MERCEDES BENZ C300 FIR ONLY A FEW MONTHS AND I HAVE EXPERIENCE 4 ENCOUNTERS AS TO WHERE MY VEHICLE WOULDNT START BACK UP WHILE SITTING INSIDE OF MY VEHICLE FOR AT LEAST 2 TO 3 MINS ITS LIKE BEING LOCKED INSIDE OF MY OWN CAR EVERYTHING COMPLETELY SHUTS DOWN THE ENGINE NOR PUSH START WOULDNT WORK MY CAR IS ALWAYS PARKED FOR SMALL PERIODS OF TIME WGEN THIS INCIDENT TOOK PLACE I TOOK IT OVER TO THE MERCEDES-BENZ DEALER AND I WAS TOLD MY CAR IS NEW AND IT DOES THAT TIME TO TIME Look up ODI 10978794 at NHTSA ↗	3434.3% ODI 11257284 · 14,000 mi TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300. WHILE OPERATING THE VEHICLE, THE CONTACT NOTICED A BURNT CRAYON ODOR INSIDE THE VEHICLE. THE ODOR MADE IT DIFFICULT TO BREATHE INSIDE THE VEHICLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF GOLDENS BRIDGE (321 NY-22, GOLDENS BRIDGE, NY 10526), BUT THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 14,000. Look up ODI 11257284 at NHTSA ↗	1724.6% ODI 11220826 · 1,700 mi TL* THE CONTACT OWNS A 2019 MERCEDES-BENZ C300W. THE CONTACT PURCHASED THE VEHICLE ON APRIL 6, 2019. ON APRIL 10, 2019 HE TOOK THE VEHICLE BACK TO THE DEALER (MERCEDES-BENZ OF SARASOTA, 4754 CLARK RD, SARASOTA, FL 34233, [phone removed]) BECAUSE IT SHOOK VIOLENTLY WHILE DRIVING AND THE ENGINE FELT LIKE IT WAS LOSING POWER AT 20 MPH. ALSO, AN ABNORMAL NOISE WAS HEARD. THE DEALER STATED THAT THE FAILURES WERE NOT ABNORMAL. THE DEALER TEST DROVE THE VEHICLE WITH THE WINDOWS UP AND COULD NOT REPLICATE THE FAILURES; HOWEVER, THEY STATED THAT THE NOI… Look up ODI 11220826 at NHTSA ↗	824.2% ODI 11382939 · 55,000 mi MY 2016 C300 (IN-LINE 4 TURBO, "PETROL" WITH 241HP) AT 55K MILES HAD 1ST CYLINDER CRACKED WHILE DRIVING ON HIGHWAY, AND MY CAR IS OUT OF WARRANTY. I TALKED TO MY DEALERSHIP AND THE CORPORATE SEPARATELY. THE DEALERSHIP WOULD COVER THE COST OF THE PARTS WHETHER THE ENGINE NEEDS REPLACEMENT OR NOT, AS I BOUGHT MY CAR THERE NEW AND HAVE BEEN USING THEM THROUGH PREPAID MAINTENANCE. I DECIDED TO FIX THE CAR AND PAY THEM PRE-ARRANGED LABOR. BUT HERE IS THE RESPONSE FROM THE CORPORATE: THANK YOU FOR YOUR EMAIL TO MERCEDES-BENZ USA, ALTHOUGH WE R… Look up ODI 11382939 at NHTSA ↗	857.1% ODI 11525102 Piston Connecting Rod broke and left the engine making holes in both sides of the block; Mercedes Benz rejected any responsibility because the car has a branded title. Currently a new engine (brand new) is being installed, my concern is that what will happen if the new engine has the same defective part and blew up again. Look up ODI 11525102 at NHTSA ↗	28.0% ODI 11527619 Throughout the year, the car had many issues, the blind spot sensors and glass sensors didn't work, and it constantly showed that the stop/start system wasn't working. Twice, the car turned off by itself at a stoplight. Since everything is controlled through the car's large monitor, including the navigation, air conditioning, and all other functions, the monitor frequently shut off and it was necessary to turn it off and on again, or wait until the next day for it to work again. The scariest incident happened during a heavy rainstorm. I was dri… Look up ODI 11527619 at NHTSA ↗	29.1% ODI 11540331 · 3,900 mi The contact owns a 2023 Mercedes-Benz C300. The contact stated while reversing, the check engine warning light illuminated and the vehicle lost motive power, stalled and shutoff. The contact was able to restart the vehicle, but had the vehicle towed to the dealer. The dealer stated that no cause for the failure was found but updated the software. The failure reoccurred. The vehicle was taken back to the dealer and the contact was informed that the water pump needed to be replaced. The vehicle was not repaired. The manufacturer was not contacted… Look up ODI 11540331 at NHTSA ↗	218.2% ODI 11692765 On Friday [XXX] at approximately [XXX]. My wife and I were driving our 2024 C-Class 300 (~8,000 miles on this vehicle) on [XXX] and entering the intersection of [XXX]. Riverside, CA 92506 when all of sudden the car just died (the engine stopped running, pushing the gas pedal with no power) and all the dashboard lights came on flashing like crazy. This incident paced my wife and I in a very venerable bad not safe situation. If there was any traffic at in this intersection at that moment it would have been a bad situation. I called MB Walter's… Look up ODI 11692765 at NHTSA ↗	00.0% No examples available for this selection.	00.0% No examples available for this selection.
Unknown Or Other	3415.7% ODI 10934527 · 5 mi SUNROOF EXPLOSION TOOK PLACE IN TRANSIT TO DELIVERY TO MY HOME IN CENTERVILLE, OHIO FROM HOUSTON, TEXAS. IT WAS STATIONARY INSIDE OF ENCLOSED TRANSIT VEHICLE. Look up ODI 10934527 at NHTSA ↗	2020.2% ODI 11163276 · 5,000 mi FORWARD COLLISON SYSTEM ($1700 OPTION) AEB, DOES NOT WORK AS DESCRIBED IN MB LITERATURE OR WEBSITE. IN MY OPINION, THE FORWARD COLLISION AVOIDANCE SYSTEM (AEB) IN MY 7 MO. OLD 2018 MERCEDES C300 SIMPLY DOES NOT WORK. I SPECIAL ORDERED THE CAR WITH THE 997 PKG THAT INCLUDES, DRIVER ASSISTANCE, BAS+, AND DISTRONIC THE MB MANUAL STATES: 'IF ACTIVE BRAKE ASSIST DETECTS THAT THERE IS A RISK OF COLLISION, YOU WILL BE WARNED VISUALLY AND ACOUSTICALLY. IF YOU DO NOT REACT AUTONOMOUS BRAKING CAN BE INITIATED IN CRITICAL SITUATIONS.' AND FURTHER THAT… Look up ODI 11163276 at NHTSA ↗	811.6% ODI 11291475 · 11,550 mi THE PANORAMA SUNROOF EXPLODED, NO OTHER CARS NEAR ME, NO ROCK HIT IT NO BIG BUMP IN THE ROAD, IT JUST EXPLODED...WAS TRAVELING AT NORMAL HIGHWAY SPEED, AND IT SOUNDED LIKE THE CAR HAD EXPLODED, VERY SCARY, AND IF THE INSIDE COVER HAD NOT BEEN CLOSED WOULD HAVE HAD GLASS SHARDS RAIN DOWN ON ME AND POSSIBLE GET IN MY EYES...MERCEDES NEEDS TO ADDRESS THIS PROBLEM RIGHT AWAY BEFORE PEOPLE GET INTO ACCIDENTS WHEN THIS HAPPENS. Look up ODI 11291475 at NHTSA ↗	515.2% ODI 11385957 · 1,000 mi ON A NUMBER OF OCCASIONS, I HAVE RECEIVED AN AUDITABLE WARNING, AND A RED LIGHT ON THE DASH THAT DISAPPEARS AS QUICKLY AS IT HAPPENS. I CANNOT CONTRIBUTE ANY CAUSE FOR THE WARNING AND THERE ISN'T ANY RESIDUAL INFORMATION ABOUT THE SOURCE OF THE WARNING. Look up ODI 11385957 at NHTSA ↗	00.0% No examples available for this selection.	28.0% ODI 11478169 There have been two complete failures of the control module /screen in the center dash of the vehicle which operates all vehicle features and some key safety features. The screen simply ceases operation and shuts down all controls for the vehicle. The first incident occurred shortly after purchasing the vehicle new in June 2022 and then again on 8/7/22 Look up ODI 11478169 at NHTSA ↗	418.2% ODI 11523001 First week, the car would take off fast as soon as the brakes were released. Then first time I used the heat there was a crackling sound coming form the side of the center display and it got extremely hot, I was on the FWY driving in the rain. Brakes: Intermittently, when braking, the car speeds up as if shifting to N, problematic in the FWY traffic behind another car, sometimes the brake pedal can be heard rattling really lose underfoot, brakes also used to groan when backing up. Electrical: intermittently, the door/trunk lock, side mir… Look up ODI 11523001 at NHTSA ↗	327.3% ODI 11588272 The vehicle was in drive, as I was turning right, the vehicle shifted from p(park) to n(netural) on the roadway. The car would not allow me to shift back to drive. I had to literally turn the car off and then back on in the middle of the road in order to put it back in drive Thankfully, there was not a vehicle nearby at the time, which could have caused a major accident or lost of life. At the time there was not a warning message at the time. Three days later tire pressure warning with fluctuating numbers occurred. I have only had this ve… Look up ODI 11588272 at NHTSA ↗	125.0% ODI 11741578 The panoramic sunroof unexpectedly shattered while the vehicle was parked in my driveway overnight. There was no collision, impact, weather event, vandalism, or any other external cause that could explain the failure. The damaged sunroof remains available for inspection upon request, and security camera footage from my property shows no outside influence that could have caused the glass to break. The unexpected failure of the panoramic sunroof created a significant safety risk. Had this occurred while I was driving, shattered glass could have … Look up ODI 11741578 at NHTSA ↗	00.0% No examples available for this selection.
Electrical System	3013.9% ODI 10949803 · 8,000 mi VEHICLE HORN WILL NOT FUNCTION WHEN IGNITION SWITCH IS IN OFF POSITION. Look up ODI 10949803 at NHTSA ↗	1010.1% ODI 11257284 · 14,000 mi TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300. WHILE OPERATING THE VEHICLE, THE CONTACT NOTICED A BURNT CRAYON ODOR INSIDE THE VEHICLE. THE ODOR MADE IT DIFFICULT TO BREATHE INSIDE THE VEHICLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF GOLDENS BRIDGE (321 NY-22, GOLDENS BRIDGE, NY 10526), BUT THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 14,000. Look up ODI 11257284 at NHTSA ↗	1217.4% ODI 11267955 TL* THE CONTACT OWNS A 2019 MERCEDES-BENZ C300W4. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V586000 (ELECTRICAL SYSTEM). THE CONTACT STATED THAT MERCEDES-BENZ OF CALDWELL (LOCATED AT 1230 BLOOMFIELD AVE, WEST CALDWELL, NJ 07006, [phone removed]) EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS NOT NOTIFIED. THE PART WAS NOT AVAILABLE FOR THE REPAIR. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT. Look up ODI 11267955 at NHTSA ↗	39.1% ODI 11418528 · 6,000 mi The contact owns a 2020 Mercedes-Benz C300. The contact stated that her son was driving at an undisclosed speed when another vehicle's muffler detached and crashed into the undercarriage of the contact's vehicle. The front driver and passenger side tires exploded and fractured the rims. The contact stated that the vehicle's alert system failed to warn her son of the incoming object which resulted in the collision. The contact's son did not receive medical attention. A police report was filed. The vehicle was towed to the dealer and repaired. Th… Look up ODI 11418528 at NHTSA ↗	17.1% ODI 11568290 First day leasing the vehicle within 6 hours lights malfunction and malfunction warning on dash to seek workshop, vehicle was taken for inspection to original dealer (Mercedes Benz of Bakersfield). During inspection I added additional concerning complaints about passenger door not closing correctly/wind noise seeping through when closed, and hood not closing promptly. One month into leasing vehicle passenger window malfunction, took for inspection and repair to original dealer (MBofBakersfield). Concerned with caution for me, my family, and fr… Look up ODI 11568290 at NHTSA ↗	728.0% ODI 11478169 There have been two complete failures of the control module /screen in the center dash of the vehicle which operates all vehicle features and some key safety features. The screen simply ceases operation and shuts down all controls for the vehicle. The first incident occurred shortly after purchasing the vehicle new in June 2022 and then again on 8/7/22 Look up ODI 11478169 at NHTSA ↗	522.7% ODI 11523001 First week, the car would take off fast as soon as the brakes were released. Then first time I used the heat there was a crackling sound coming form the side of the center display and it got extremely hot, I was on the FWY driving in the rain. Brakes: Intermittently, when braking, the car speeds up as if shifting to N, problematic in the FWY traffic behind another car, sometimes the brake pedal can be heard rattling really lose underfoot, brakes also used to groan when backing up. Electrical: intermittently, the door/trunk lock, side mir… Look up ODI 11523001 at NHTSA ↗	436.4% ODI 11576712 Within the first week of ownership (delivery on 1/15/24), the car's parking and/or front collision sensors started malfunctioning on a regular basis. The sensors repeatedly gave off false alerts when the car would approach intersections even though no obstacles were in front of, or behind, the car. The false alerts were quite startling and they consisted of loud alarms and warning images in both the driver's display and the car's heads up display. The repeated false alarms posed a significant safety hazard because they initially caused me to… Look up ODI 11576712 at NHTSA ↗	125.0% ODI 11725129 After driving the 2025 c300 sedan and leaving it parked for an hour or two, I come back to the car and turn it on. Neither the central screen or drivers screen were operable. The engine, interior lighting, sounds, and other systems were working however all the screens were completely dead. The car had no speedometer, gear selection, park brake, A/C control, or any function. This is the second time it has happened first on 02/12/2026 and then today on 03/17/2026. After locking the car and leaving it alone for an hour, functions restart normally.… Look up ODI 11725129 at NHTSA ↗	00.0% No examples available for this selection.
Fuel/Propulsion System	3013.9% ODI 11279530 · 55,000 mi TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ C300. WHEN THE CONTACT STARTED THE VEHICLE WITH THE MOBILE APP, SHE NOTICED A FUEL ODOR EMITTING FROM THE VEHICLE. WHEN THE VEHICLE WAS STARTED MANUALLY, THE ODOR WAS NOT PRESENT. THE CONTACT TOOK THE VEHICLE TO PARK PLACE MOTORCARS DALLAS (LOCATED AT 6113 LEMMON AVE, DALLAS, TX 75209, [phone removed]) WHERE IT WAS DIAGNOSED THAT THE FUEL HOSE WAS LEAKING AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 55,000. Look up ODI 11279530 at NHTSA ↗	99.1% ODI 11446178 · 62,000 mi CYLINDER 1 SPARK PLUGS IS DAMAGED DUE TO PISTON DAMAGE, HOLE IN PISTON. IF EXTRA DAMAGE IS FOUND ON TEAR DOWN, COMPLETE ENGINE REPLACEMENT. This is direct from the repair facilities reports. While driving my 2018 C-300 there was smoking out of tail pipe, a rough vibration, hard to control the vehicle and it was starting to lose power. Not a good situation, had to pull over and have vehicle towed to the dealership. Worst part is this is a vehicle used to transport my 5 children to and from school and activities. My 16 year old also drives this … Look up ODI 11446178 at NHTSA ↗	710.1% ODI 11395598 · 28,000 mi I WAS PULLING OUT OF A PARKING LOT ONTO A HIGHWAY WITH A POSTED LIMIT OF 55 MPH. AS I PULLED OUT ONTO THE HIGHWAY THE GAS PEDAL JUST STOPPED WORKING. THE CAR WAS ON BUT IT JUST WOULDN'T GO ANYWHERE. A VEHICLE COMING FROM MY LEFT AT A HIGH RATE OF SPEED HAD TO PUT ON IT'S BRAKES IN ORDER NOT TO STRIKE THE DRIVER'S SIDE OF MY DOOR. IT CAME WITHIN 2 FEET OF MY VEHICLE. I TURNED OFF THE CAR AND RESTARTED IT. WHEN I RESTARTED THE VEHICLE I TURNED OFF THE "ECO" BUTTON AND DROVE A COUPLE OF MILES BACK TO MY HOME WITH NO PROBLEMS. NOTE....I HAVE… Look up ODI 11395598 at NHTSA ↗	39.1% ODI 11390106 · 87,000 mi THE FUEL SMELL IS COMING FROM THE RUBBER FUEL, THEY ARE NOT COVER BY MY CPO- WARRANTY ( 3000 USD PAID PACKAGE). I FOUND OVER 100 FRIENDS ON FACEBOOK GROUP HAS THE SAME PROBLEMS. DEALLER REFUSE TO COVER. MY KID IS FELL BAD ABOUT THE SMELL LEAKING. Look up ODI 11390106 at NHTSA ↗	214.3% ODI 11691568 While driving car on Sunday 10/5, it suddenly failed to respond to gas pedal pressure. The car stopped accelerating and rather slowed to 15 MPH, almost causing a car from behind to hit me in the rear side. Look up ODI 11691568 at NHTSA ↗	416.0% ODI 11537819 A recall was issued for the fuel pump, creating a major safety issue and increased risk of collision, which still no available remedy. The manufacturer has failed to provide a resolution in a timely manner, especially for such a vital competent wearing down every day. Furthermore, the manufacturer has offered not other alternatives such as loaned vehicle or compensation for the risk of sudden motor failure. Look up ODI 11537819 at NHTSA ↗	14.5% ODI 11555944 The above multiple problems/parts at issue. To include Other/I am not sure. Started at or approximately February 2023. The (Automatic Folding Side View Folding Mirrors before resolution) Malfunctioned 3 separate times before being fixed. During that time the (Cooling System Malfunction Reduced Drive Performance Service Required), displayed 2 separate Unknown Dates on the Dashboard Screen. The MB Dealership Service Diagnostic Check made was not Able to Detect the Trouble and was Never Fixed). On Monday, 08/21/2023, by (USPS) delivered a Merc… Look up ODI 11555944 at NHTSA ↗	00.0% No examples available for this selection.	00.0% No examples available for this selection.	00.0% No examples available for this selection.
Structure:Body	188.3% ODI 11080335 · 9,000 mi TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ C300. WHILE DRIVING APPROXIMATELY 35 MPH, THE GLASS MOON ROOF SUDDENLY EXPLODED, CAUSING GLASS TO ENTER THE CABIN OF THE VEHICLE. THERE WERE NO INJURIES. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF LOVELAND (4040 BYRD DR, LOVELAND, CO), BUT THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 9,000. Look up ODI 11080335 at NHTSA ↗	88.1% ODI 11114956 TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 18V456000 (STRUCTURE); HOWEVER, THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR AS THE RECALL NOTICE WAS RECEIVED OVER THREE WEEKS AGO. THE DEALER (MERCEDES-BENZ OF ONTARIO, 3787 E GUASTI RD, ONTARIO, CA 91761) WAS CONTACTED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS NOT NOTIFIED. THE CONTACT HA… Look up ODI 11114956 at NHTSA ↗	57.2% ODI 11432020 The automatic trunk lid started to close and hit my head while I was loading groceries into the trunk. It also started to close and hit my wife in the head when she was unloading the groceries about 15 minutes later. This situation was not reproduced or confirmed by a dealer or independent service center. There was no notice or warning of pending failure. There appeared to be no visible injury to either person except for a short pain in the head. Look up ODI 11432020 at NHTSA ↗	13.0% ODI 11625377 Roof panel is peeling and rattling loose. I’m afraid it will come off like the other C-300s that were recalled for their roof panel flying off. Look up ODI 11625377 at NHTSA ↗	00.0% No examples available for this selection.	00.0% No examples available for this selection.	14.5% ODI 11662742 While driving at 60mph my panoramic sunroof completely shattered. Nothing at all hit the sunroof to cause it to shatter. If my sunshade cover had not been on, the glass would have fallen on me while operating my vehicle. This is not only dangerous but unacceptable. It was also a distraction that could have caused an accident. Mercedes did not make me aware of the class action lawsuit they have with the panoramic sunroofs, and I feel that was neglectful on their part. Upon inspection from a service advisor at a Mercedes Benz dealership, they tol… Look up ODI 11662742 at NHTSA ↗	00.0% No examples available for this selection.	125.0% ODI 11741578 The panoramic sunroof unexpectedly shattered while the vehicle was parked in my driveway overnight. There was no collision, impact, weather event, vandalism, or any other external cause that could explain the failure. The damaged sunroof remains available for inspection upon request, and security camera footage from my property shows no outside influence that could have caused the glass to break. The unexpected failure of the panoramic sunroof created a significant safety risk. Had this occurred while I was driving, shattered glass could have … Look up ODI 11741578 at NHTSA ↗	00.0% No examples available for this selection.
Steering	136.0% ODI 11055406 STEERING WHEEL MALFUNCTION. CAR PARKED AT GARAGE AND WHEN I WENT TO START I GOT THE MALFUNCTION MESSAGE AND THE STEERING WHEEL WOULD NOT TURN. I CALLED MERCEDES AND THEY WILL TOW THE CAR TOMORROW. FOR A BRAND NEW 2017 MERCEDES THIS IS UNACCEPTABLE. Look up ODI 11055406 at NHTSA ↗	1111.1% ODI 11169926 I AM WRITING TO SHARE MY DISSATISFACTION WITH MERCEDES BENZ. I HAVE A 2018 C300 THAT WAS PURCHASED BRAND NEW. THE STEERING WHEEL IS DETERIORATING AND I ADDRESSED THE SERVICE DEPARTMENT OF ONTARIO,CA. I OPENED A CASE WITH CORPORATE AND SPOKE WITH CASE MANAGER JAMES WHO WAS NOT HELPFUL, AND REFUSED TO PUT IN A ESCALATION TO MANAGEMENT ABOUT MY SITUATION. HE ACTUALLY THOUGHT MY CALL WAS FUNNY AND LAUGHED AT ONE POINT. I WAS INSULTED BY MERCEDES BENZ WITH THE COMMENT YOU GUYS TOLD ME ABOUT MY WHEEL, AND HOW YOU WILL NOT STAND BEHIND THE STANDAR… Look up ODI 11169926 at NHTSA ↗	57.2% ODI 11360247 · 17,506 mi TL* THE CONTACT OWNS A 2019 MERCEDES-BENZ C300. THE CONTACT STATED THAT WHENEVER THE STEERING WHEEL WAS TURNED LEFT OR RIGHT, THERE WAS A GRINDING SOUND COMING FROM THE STEERING WHEEL. THE CONTACT CONTACTED MERCEDES BENZ OF BROOKLYN (1800 SHORE PKWY BROOKLYN NY 11214; [phone removed]) WHO STATED THEY WERE AWARE OF SIMILAR ISSUES HOWEVER, THERE WAS NO RECALL. THE VEHICLE HAD NOT BEEN DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND INFORMED THE CONTACT THAT THE FAILURE WAS TYPICALLY CAUSED BY AN IMPACT. THE MANUFACTURER… Look up ODI 11360247 at NHTSA ↗	26.1% ODI 11423100 While driving on the turnpike without warning my steering locked and I lost control of my car. Look up ODI 11423100 at NHTSA ↗	00.0% No examples available for this selection.	14.0% ODI 11545779 - What component or system failed or malfunctioned, and is it available for inspection upon request? NHTSA Recall ID: 23V445, Fuel Pump Delivery Module How was your safety or the safety of others put at risk? Vehicle at risk to lose drive power, increasing the chance of crashing while operating. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? No. Mercedes dealership states they will not repair recalls on the weekends only M-F. I work at the hospital M-F 0800-1700. The dea… Look up ODI 11545779 at NHTSA ↗	00.0% No examples available for this selection.	00.0% No examples available for this selection.	00.0% No examples available for this selection.	00.0% No examples available for this selection.
Air Bags	156.9% ODI 11040900 TAKATA RECALL. WHAT IS CONSIDERED TO BE A "TIMELY MANNER" FOR THE DEALER TO FIX A CAR? Look up ODI 11040900 at NHTSA ↗	44.0% ODI 11186601 · 10,000 mi TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300W. THE CONTACT STATED THAT THE VEHICLE WAS REPAIRED PER NHTSA CAMPAIGN NUMBER: 18V838000 (AIR BAGS) BY MERCEDES-BENZ OF ARCADIA (101 N SANTA ANITA AVE, ARCADIA, CA 91006, [phone removed]). HOWEVER, THE AIR BAG WARNING INDICATOR ILLUMINATED AFTER THE REPAIR. THE DEALER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED A SECOND TIME. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 10,000. Look up ODI 11186601 at NHTSA ↗	11.4% ODI 11457824 i was involve in a accident, i was Tbone and the driver side airbags didnt deploy. Look up ODI 11457824 at NHTSA ↗	26.1% ODI 11428078 On July 17, 2021 I was driving at the posted rate of speed down I-275 Southbound here in Michigan. All of the sudden and without warning, there was a loud explosion which happened, from as near as I can tell, in the driver's side windshield pillar, where there is an airbag. No warning lights came on, and the car did not change its driving characteristics. Only after I reached my destination and searched under the dash, and every where else (including the exterior), did I find that the plastic "cover" on the pillar is pushed away from the pillar… Look up ODI 11428078 at NHTSA ↗	17.1% ODI 11453645 The contact owns a 2021 Mercedes-Benz C300. The contact stated while driving at an unknown speed, there was a burning odor inside the vehicle. The contact stated the passenger side air bags was enabled warning light was illuminated. The contact also stated the vehicle made an abnormal noise. The contact took the vehicle to the local dealer but was unable to duplicate the failure. The manufacturer had not been informed of the failure. The failure mileage was unknown. Look up ODI 11453645 at NHTSA ↗	00.0% No examples available for this selection.	00.0% No examples available for this selection.	218.2% ODI 11576712 Within the first week of ownership (delivery on 1/15/24), the car's parking and/or front collision sensors started malfunctioning on a regular basis. The sensors repeatedly gave off false alerts when the car would approach intersections even though no obstacles were in front of, or behind, the car. The false alerts were quite startling and they consisted of loud alarms and warning images in both the driver's display and the car's heads up display. The repeated false alarms posed a significant safety hazard because they initially caused me to… Look up ODI 11576712 at NHTSA ↗	00.0% No examples available for this selection.	150.0% ODI 11765781 · 1,729 mi The contact owns a 2026 Mercedes-Benz C300. The contact stated that there was white powder discovered inside the vehicle. The contact initially thought that it was mold. The contact stated that the heating system had caused the issue. The air bag dust was on the headliner and the driver's side A-pillar. The vehicle was taken to the local dealer, who was unable to determine the cause of the issue. The vehicle was then taken to another dealer, Mercedes-Benz Atlanta South Parts Department (3800 Royal S Pkwy, Atlanta, GA 30349), who was unable to d… Look up ODI 11765781 at NHTSA ↗
Power Train	125.6% ODI 11197127 · 29,000 mi WHEN IDLING AT THE LIGHT. THE CAR WOULD SHUT ITSELF OFF. ALL THE WARNING LIGHTS WILL COME ON. I THEN HAVE TO RESTART THE CAR WITH THE PUSH START TO RESET IT. THEN IT'LL WORK FINE. I HAVE BEEN TO MERCEDES DEALERSHIP IN NEW ROCHELLE FOR FOUR TIMES ABOUT THIS ISSUE. THEY CHANGED THE BATTERY THE FIRST TIME. TWO DAYS LATER THE SITUATION OCCURRED AGAIN. THEN THE SECOND AND THIRD TIME THEY GAVE ME BACK THE CAR AND SAID THEY DIDN'T SEE ANYTHING WRONG BECAUSE NO CODES POPPED UP. BOTH TIMES I TOOK THE CAR BACK AND THE SITUATION OCCURRED AGAIN. THIS PROB… Look up ODI 11197127 at NHTSA ↗	22.0% ODI 11446178 · 62,000 mi CYLINDER 1 SPARK PLUGS IS DAMAGED DUE TO PISTON DAMAGE, HOLE IN PISTON. IF EXTRA DAMAGE IS FOUND ON TEAR DOWN, COMPLETE ENGINE REPLACEMENT. This is direct from the repair facilities reports. While driving my 2018 C-300 there was smoking out of tail pipe, a rough vibration, hard to control the vehicle and it was starting to lose power. Not a good situation, had to pull over and have vehicle towed to the dealership. Worst part is this is a vehicle used to transport my 5 children to and from school and activities. My 16 year old also drives this … Look up ODI 11446178 at NHTSA ↗	68.7% ODI 11637804 · 36,000 mi The contact owns a 2019 Mercedes-Benz C 300. The contact stated that while driving 65 MPH, the vehicle inadvertently lost motive power, and was unable to accelerate above 25 MPH. The check engine warning light was illuminated. The vehicle was taken to the dealer, who determined that the PCM required a software update. The vehicle was repaired. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 36,000. Look up ODI 11637804 at NHTSA ↗	39.1% ODI 11589214 My wife was driving our 2020 Mercedes Benz C300 coupe near our house and the engine light came on. Then the car could not be driven over the speed of 30 miles per hour. Then it stopped and had to be towed. Fortunately, she was able to avoid being hit by other vehicles.The car only has 25219 miles. It was towed to a mechanic who performed a diagnostic test which provided a series of codes regarding the malfunction. Three codes were related to the CAMTRONIC camshaft system and its Solenoid ( Codes: P003C-53; P34AE-00; P34AD-09). Camshaft positi… Look up ODI 11589214 at NHTSA ↗	17.1% ODI 11678865 My C300 only had about 42,000 miles and was less than 5 years old. Just after the factory warranty expired, the engine was running rough and hot, and "check engine" light illuminated. My local garage quickly diagnosed the problem as a failed cylinder head, stated that it is common with Mercedes 4-cylinder engines from about 2017, and said Mercedes may cover it since it is a "known problem" and shouldn't happen with that mileage. I was charged $7,860 by my local Mercedes dealer, and despite multiple contacts with MercedezUSA, they refuse to ack… Look up ODI 11678865 at NHTSA ↗	00.0% No examples available for this selection.	14.5% ODI 11577612 On 2/17/24 the vehicle was parked in front of my house. There is a slight grade. The vehicle had been parked for approximately 1 hour when my neighbor called me to tell me that the vehicle had rolled down the hill and into his storage building. The vehicle rolled on its own. I have video evidence that no one was in or around the car at the time of this occurrence. I also, have 2 eyewitnesses who can corroborate this story. Due to safety concerns, I immediately returned the vehicle to Mercedes. I have .MOV files and pictures JPEG that will not u… Look up ODI 11577612 at NHTSA ↗	19.1% ODI 11610577 Issue: Post-Airbag Deployment PCM Lockout Description: I am reporting a critical safety concern regarding the 2024 Mercedes-Benz C300. After an airbag deployment, the vehicle's Powertrain Control Module (PCM) is designed to automatically lock, preventing the engine from being restarted. While this feature is intended to enhance safety, it poses significant risks in certain emergency situations. For instance, in scenarios such as a landslide, attempted robbery, or a collision with wildlife in a remote area with poor cell signal, this design co… Look up ODI 11610577 at NHTSA ↗	00.0% No examples available for this selection.	00.0% 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	14,000 mi	3 (sparse)	ODI 11257284 · 14,000 mi TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300. WHILE OPERATING THE VEHICLE, THE CONTACT NOTICED A BURNT CRAYON ODOR INSIDE THE VEHICLE. THE ODOR MADE IT DIFFICULT TO BREATHE INSIDE THE VEHICLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF GOLDENS BRIDGE (321 NY-22, GOLDENS BRIDGE, NY 10526), BUT THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 14,000. Look up ODI 11257284 at NHTSA ↗ ODI 11287701 · 4 mi WHEN AT A STOP THE ENGINE WILL NOT RESTART SOMETIMES. I HAVE TO START THE ENGINE MANUALLY. THIS HAS HAPPENED TO ME FOUR TIMES IN 5 MONTHS . Look up ODI 11287701 at NHTSA ↗ ODI 11446178 · 62,000 mi CYLINDER 1 SPARK PLUGS IS DAMAGED DUE TO PISTON DAMAGE, HOLE IN PISTON. IF EXTRA DAMAGE IS FOUND ON TEAR DOWN, COMPLETE ENGINE REPLACEMENT. This is direct from the repair facilities reports. While driving my 2018 C-300 there was smoking out of tail pipe, a rough vibration, hard to control the vehicle and it was starting to lose power. Not a good situation, had to pull over and have vehicle towed to the dealership. Worst part is this is a vehicle used to transport my 5 children to and from school and activities. My 16 year old also drives this … Look up ODI 11446178 at NHTSA ↗
Unknown Or Other	Too few reports for a range	17,500 mi	2 (sparse)	ODI 11163276 · 5,000 mi FORWARD COLLISON SYSTEM ($1700 OPTION) AEB, DOES NOT WORK AS DESCRIBED IN MB LITERATURE OR WEBSITE. IN MY OPINION, THE FORWARD COLLISION AVOIDANCE SYSTEM (AEB) IN MY 7 MO. OLD 2018 MERCEDES C300 SIMPLY DOES NOT WORK. I SPECIAL ORDERED THE CAR WITH THE 997 PKG THAT INCLUDES, DRIVER ASSISTANCE, BAS+, AND DISTRONIC THE MB MANUAL STATES: 'IF ACTIVE BRAKE ASSIST DETECTS THAT THERE IS A RISK OF COLLISION, YOU WILL BE WARNED VISUALLY AND ACOUSTICALLY. IF YOU DO NOT REACT AUTONOMOUS BRAKING CAN BE INITIATED IN CRITICAL SITUATIONS.' AND FURTHER THAT… Look up ODI 11163276 at NHTSA ↗ ODI 11341232 · 30,000 mi THE SUNROOF SPONTANEOUSLY EXPLODED OUT OF NO WHERE. SOUNDED LIKE A SHOTGUN BLAST. Look up ODI 11341232 at NHTSA ↗
Electrical System	Too few reports for a range	52,800 mi	3 (sparse)	ODI 11257284 · 14,000 mi TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300. WHILE OPERATING THE VEHICLE, THE CONTACT NOTICED A BURNT CRAYON ODOR INSIDE THE VEHICLE. THE ODOR MADE IT DIFFICULT TO BREATHE INSIDE THE VEHICLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF GOLDENS BRIDGE (321 NY-22, GOLDENS BRIDGE, NY 10526), BUT THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 14,000. Look up ODI 11257284 at NHTSA ↗ ODI 11511208 · 85,000 mi The contact owns a 2018 Mercedes-Benz C300. The contact stated that after starting the vehicle, the S.O.S. Not Active message displayed. The contact was concerned that in the event of an emergency, the emergency services function would be inoperable. The vehicle had previously been serviced under NHTSA Campaign Number: 21V058000 (Electrical System, Communication) however, the failure recurred. The dealer was made aware of the failure; however, the vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The fai… Look up ODI 11511208 at NHTSA ↗ ODI 11564953 · 52,800 mi The contact owns a 2018 Mercedes-Benz C300. The contact stated that while driving at an undisclosed speed, there was a message was displayed that there was a light bulb malfunction. The contact stated that the rear turn signal lights and brake lights were not operating properly. Additionally, the contact stated that the fuel door failed to operate properly, and occasionally opened independently while driving. The vehicle was taken to a local dealer, where it was diagnosed and determined that the cause of the electrical issues was water in the s… Look up ODI 11564953 at NHTSA ↗
Fuel/Propulsion System	Too few reports for a range	62,000 mi	1 (sparse)	ODI 11446178 · 62,000 mi CYLINDER 1 SPARK PLUGS IS DAMAGED DUE TO PISTON DAMAGE, HOLE IN PISTON. IF EXTRA DAMAGE IS FOUND ON TEAR DOWN, COMPLETE ENGINE REPLACEMENT. This is direct from the repair facilities reports. While driving my 2018 C-300 there was smoking out of tail pipe, a rough vibration, hard to control the vehicle and it was starting to lose power. Not a good situation, had to pull over and have vehicle towed to the dealership. Worst part is this is a vehicle used to transport my 5 children to and from school and activities. My 16 year old also drives this … Look up ODI 11446178 at NHTSA ↗
Structure:Body	Too few reports for a range	3,843 mi	2 (sparse)	ODI 11129095 · 7,650 mi TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300 CONVERTIBLE. THE CONTACT STATED THAT THE FRONT PASSENGER SIDE FENDER BECAME PARTIALLY DETACHED FROM THE BODY OF THE VEHICLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF FORT WASHINGTON (404 PENNSYLVANIA AVE, FORT WASHINGTON, PA 19034, [phone removed]) AND THE CONTACT WAS CHARGED FOR THE REPAIR ON A FAIRLY NEW VEHICLE. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 7,650. THE VIN WAS UNKNOWN. Look up ODI 11129095 at NHTSA ↗ ODI 11413726 · 35 mi DATE: APRIL 13, 2021. MODEL: C300 YEAR : 2018 MILAGE: 16,000. TIME: 2.30 P.M. WHETHER: SUNNY. ROAD CONDITION: SMOOTH PROBLEM: WHILE DRIVING ON 405 SOUTH AT SPEED OF APPROX 65 TO 70 MPH FOR NO APPARENT REASON , THE CAR UDDENLY , UNEXPECTEDLY, AND FORCEFULLY SLAMMED ON THE BRAKES ( 65 TO 0 MPH) IN MATTER OF SECONDS, AND LOCKED ITS WHEELS. LEFT ME STOCK ON THE FWY. THE MOST SCARIEST EXPERIENCE AS YOU DON'T KNOW WHAT IS GOING ON OR WHAT IS GOING TO HAPPEN TO . LUCKILY THERE WERE NO VEHICLES IN MY CLOSE PROXIMITY OR WE COULD HAVE DIED ! THE WA… Look up ODI 11413726 at NHTSA ↗
Structure	Too few reports for a range	66,000 mi	4 (sparse)	ODI 11551799 · 45,000 mi The contact owns a 2018 Mercedes-Benz C300. The contact stated while attempting to close the sunroof, the sunroof failed to close properly. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 21V197000 (Structure) but the VIN was not included. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 45,000. Look up ODI 11551799 at NHTSA ↗ ODI 11664906 · 49,000 mi The contact owns a 2018 Mercedes-Benz C300. The contact stated that after washing the vehicle, the contact became aware that the adhesive attaching the rear window to the convertible top had started to detach. Upon further inspection, the contact became aware that water had seeped into the vehicle through the crack. There was no warning light illuminated. The local dealer was contacted; however, the vehicle was not diagnosed. The contact was also informed that the VIN was not under recall. The vehicle was not repaired. The manufacturer was noti… Look up ODI 11664906 at NHTSA ↗ ODI 11681537 · 109,000 mi The contact owns a 2018 Mercedes-Benz C300. The contact stated that while driving approximately 60 MPH, a part of the panoramic roof towards the driver's side detached from the vehicle. The contact pulled over to inspect the vehicle. The part was no longer attached, and the contact had to continue driving. The failure caused additional electrical failures due to water entering the cabin of the vehicle. The contact stated that the sunroof failed to open, and the infotainment center was inoperable. The contact found information on NHTSA Campaign … Look up ODI 11681537 at NHTSA ↗
Air Bags	Too few reports for a range	10,000 mi	1 (sparse)	ODI 11186601 · 10,000 mi TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300W. THE CONTACT STATED THAT THE VEHICLE WAS REPAIRED PER NHTSA CAMPAIGN NUMBER: 18V838000 (AIR BAGS) BY MERCEDES-BENZ OF ARCADIA (101 N SANTA ANITA AVE, ARCADIA, CA 91006, [phone removed]). HOWEVER, THE AIR BAG WARNING INDICATOR ILLUMINATED AFTER THE REPAIR. THE DEALER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED A SECOND TIME. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 10,000. Look up ODI 11186601 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	0	None	No examples available for this selection.
2025-01	0	None	No examples available for this selection.
2025-02	2	None	ODI 11640265 The engine light is on with only 35000 miles. Upon using an OBD2 scanner, error code P052e positive crankcase ventilation(PCV) malfunction was detected. It's a problem that I researched and noticed a lot of people having the same issue. I was told that this can cause the car to stall or shut down? This causes serious risk and safety issues to drivers, passengers, and pedestrians. With so many complains about this problem, I believe the manufacturer and dealers should take responsibility before tragedies happen. Look up ODI 11640265 at NHTSA ↗ ODI 11642176 · 52,300 mi The contact owns a 2018 Mercedes-Benz C300. The contact stated that while the vehicle was parked inside the garage, there was a strong fuel odor inside the garage. The contact stated that there was fuel leaking from the vehicle. There were no warning lights illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 52,300. Look up ODI 11642176 at NHTSA ↗
2025-03	1	None	ODI 11647340 I recently purchased a 2018 Mercedes C300 and I noticed the rear view camera will not show an image. It mechanically will open and all other cameras are fully functional but the image will not show instead I see a icon of a camera in a red crossed circle. When doing VIN serch on my vehicle I don't see any open recalls. However, I noticed that NHTSA campaign number 22V232000 has recalled this exact issue. Although the report 573 says for it applying to 2019 models but with a production date between 2017 to 2021 vehicles applying. So I believe th… Look up ODI 11647340 at NHTSA ↗
2025-04	0	None	No examples available for this selection.
2025-05	1	None	ODI 11663518 In August 2024, a Mercedes-Benz dealership in Salisbury, MD installed the wrong type of rear tires on my vehicle. I was not informed they were mismatched or inappropriate for my vehicle. I later drove across the country with my infant child in the backseat, believing the tires were new and safe. On April 17, 2025, a certified tire shop in Texas (Discount Tire) inspected the tires and told me they were not suitable for my car and were already too old to be considered new , despite having been installed just 8 months earlier. They refused to buy… Look up ODI 11663518 at NHTSA ↗
2025-06	1	None	ODI 11664906 · 49,000 mi The contact owns a 2018 Mercedes-Benz C300. The contact stated that after washing the vehicle, the contact became aware that the adhesive attaching the rear window to the convertible top had started to detach. Upon further inspection, the contact became aware that water had seeped into the vehicle through the crack. There was no warning light illuminated. The local dealer was contacted; however, the vehicle was not diagnosed. The contact was also informed that the VIN was not under recall. The vehicle was not repaired. The manufacturer was noti… Look up ODI 11664906 at NHTSA ↗
2025-07	0	None	No examples available for this selection.
2025-08	1	None	ODI 11681537 · 109,000 mi The contact owns a 2018 Mercedes-Benz C300. The contact stated that while driving approximately 60 MPH, a part of the panoramic roof towards the driver's side detached from the vehicle. The contact pulled over to inspect the vehicle. The part was no longer attached, and the contact had to continue driving. The failure caused additional electrical failures due to water entering the cabin of the vehicle. The contact stated that the sunroof failed to open, and the infotainment center was inoperable. The contact found information on NHTSA Campaign … Look up ODI 11681537 at NHTSA ↗
2025-09	1	None	ODI 11689895 I have noticed the driver seat belt not retracting after usage. Upon looking online I saw a post about a recall. Called local Benz dealership and BenzUSA customer service both said my Vin is not part of the specified recall. Look up ODI 11689895 at NHTSA ↗
2025-10	2	None	ODI 11692113 Rearview Camera is not displayed when the vehicle is placed in reverse. The display shows a black screen. A Recall Notice has been published for other vehicles of the same year, make, and model. The failure of the Rearview Camera results in safety risks during normal use of the vehicle. Look up ODI 11692113 at NHTSA ↗ ODI 11695170 My vehicle only had 31,000 miles and I experienced engine failure. I bought a new engine for 16, 500. 00 dollars. Mercedes Benz did nothing. I almost got in to several accidents because the engine completely stop on the interstate. Almost got hit by several cars. This is unacceptable. Look up ODI 11695170 at NHTSA ↗
2025-11	0	None	No examples available for this selection.
2025-12	0	None	No examples available for this selection.
2026-01	1	None	ODI 11709871 Check engine light comes on, Error Code P052E, after a lot of research, this is a known defective part by Benz. Huge safety issue not addressed by them. Very costly to fix for a customer. There is a new and improved replacement part from Benz indicating they are aware of the faulty old parts that are currently in those cars but yet they have failed to do a recall. Look up ODI 11709871 at NHTSA ↗
2026-02	0	None	No examples available for this selection.
2026-03	1	None	ODI 11722229 The contact's wife owns a 2018 Mercedes-Benz C300. The contact stated that while washing the vehicle, a part of the panoramic roof started moving while depressing the glass. The contact stated that there was water leaking into the vehicle from the glass. Upon investigation, the contact discovered NHTSA Campaign Number: 23V854000 (Structure); however, the VIN was not included in the recall. The vehicle was not repaired. The manufacturer was notified of the failure, and a case was filed. The manufacturer confirmed that the VIN was not included in… Look up ODI 11722229 at NHTSA ↗
2026-04	0	None	No examples available for this selection.
2026-05	0	None	No examples available for this selection.
2026-06	1	None	ODI 11744612 Transmission failed, yes available for inspection Very bad safety issue Yes it has been confirmed by dealship Yes by the deanship Yes there was warning lamps that appeared in January 2026 Look up ODI 11744612 at NHTSA ↗
2026-07	0	None	No examples available for this selection.
2026-08	1	None	ODI 11759626 · 83,000 mi The contact owns a 2018 Mercedes-Benz C-300. The contact stated that while driving 70 MPH South on the interstate towards Miami, the front panel detached without warning. The contact pulled over to inspect the vehicle and became aware that the panel between the windshield and sunroof had detached. The contact stated that water started entering the vehicle from several areas. The sunroof was inoperable. The contact called the insurance company. The contact associated the failure with NHTSA Campaign Number: 23V854000 (Structure). The local dealer… Look up ODI 11759626 at NHTSA ↗
2026-09	1	None	ODI 11764699 Front roof panel came detached at hwy speed Look up ODI 11764699 at NHTSA ↗
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: 20 complaints · 2023: 20 complaints

Equal observation windows
Model year	Through age 0	Through age 1	Through age 2
2022	6	16	20
2023	10	15	20

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	25	0	0
2023	20	0	2

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	Steering	Electrical System	Fuel/Propulsion System	Structure:Body	Structure	Air Bags
Engine	—	2 ODI 11533877 My c300 2018 only has 50k and suddenly the engine light is on, when I check it shows that I need the Positive Crankcase ventilation valve replaced. it cost $2300. As I know a lot of people who own Mercedes have the same problem. Three mechanics claim it on almost all C, CLA, and GLA models. Please make Mercedes recall it finally. Look up ODI 11533877 at NHTSA ↗ ODI 11604857 The day after I purchased my c300, the engine light popped on. I went back to dealer and they said it was a recall because of a crank case (PCV). I was upset because they never said anything about it. This was April of 2024. Note:(This Dealer was not Ray Catina’s of Edison). I went to Ray Catina’s in Edison for them to inspect car and I have been calling because I was told it was a national recall and it was on back order and should be here in June. It is now almost August and I called on the 23rd of July and received a call from Ray Catena on… Look up ODI 11604857 at NHTSA ↗	0	1 ODI 11257284 · 14,000 mi TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300. WHILE OPERATING THE VEHICLE, THE CONTACT NOTICED A BURNT CRAYON ODOR INSIDE THE VEHICLE. THE ODOR MADE IT DIFFICULT TO BREATHE INSIDE THE VEHICLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF GOLDENS BRIDGE (321 NY-22, GOLDENS BRIDGE, NY 10526), BUT THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 14,000. Look up ODI 11257284 at NHTSA ↗	7 ODI 11446178 · 62,000 mi CYLINDER 1 SPARK PLUGS IS DAMAGED DUE TO PISTON DAMAGE, HOLE IN PISTON. IF EXTRA DAMAGE IS FOUND ON TEAR DOWN, COMPLETE ENGINE REPLACEMENT. This is direct from the repair facilities reports. While driving my 2018 C-300 there was smoking out of tail pipe, a rough vibration, hard to control the vehicle and it was starting to lose power. Not a good situation, had to pull over and have vehicle towed to the dealership. Worst part is this is a vehicle used to transport my 5 children to and from school and activities. My 16 year old also drives this … Look up ODI 11446178 at NHTSA ↗ ODI 11508445 at 67000 miles the check engine light came on and is was engine code p052e crankcase ventilation regulator valve failure. This failure will cause the ending to exhaust increased contaniments in to the air. This is a know problem by MBUSA and they have changed the part design on new vehicles , this problems comes up right after the cars warranty and they cost to repair is in excess of $2500. For this to be an emission know problem by MBUSA a recall should be issued and this problem corrected under the recall process of the NHTSA ASAP. This h… Look up ODI 11508445 at NHTSA ↗ ODI 11508446 Failed positive crankcase ventilator after 40,000 miles common problem regulating oil consumption to the engine. Causing oil burn, oil leak, inconsistent oil ventilation. Dealer is aware of the problem. Engine light is on with code P052E. Commonly reported problem for this model on the internet. Look up ODI 11508446 at NHTSA ↗	0	0	0
Unknown Or Other	2 ODI 11533877 My c300 2018 only has 50k and suddenly the engine light is on, when I check it shows that I need the Positive Crankcase ventilation valve replaced. it cost $2300. As I know a lot of people who own Mercedes have the same problem. Three mechanics claim it on almost all C, CLA, and GLA models. Please make Mercedes recall it finally. Look up ODI 11533877 at NHTSA ↗ ODI 11604857 The day after I purchased my c300, the engine light popped on. I went back to dealer and they said it was a recall because of a crank case (PCV). I was upset because they never said anything about it. This was April of 2024. Note:(This Dealer was not Ray Catina’s of Edison). I went to Ray Catina’s in Edison for them to inspect car and I have been calling because I was told it was a national recall and it was on back order and should be here in June. It is now almost August and I called on the 23rd of July and received a call from Ray Catena on… Look up ODI 11604857 at NHTSA ↗	—	0	3 ODI 11423935 To Whom It May Concern, I bought this certified preowned Mercedes Benz, and the recall is open. I have taken the car to the dealership, they deny me from service because its an over the air recall. The Mercedes Benz website clearly states on their letter for consumer that the remedy for this recall can be taken care at the dealership free of charge or an over the air update. Its July and I got the car back in February. Look up ODI 11423935 at NHTSA ↗ ODI 11446466 The sunroof on the vehicle jams and either stays partially open or won’t close in the rear completely. I finally got it to close but it will not open again. I know multiple mercedes owners who have this issue with the sunroof and if the sunroof will continue to not lock properly this could be a hazard on the highway if the brackets were to break and the glass slides off. Look up ODI 11446466 at NHTSA ↗ ODI 11543013 According to the dealership, if the car is not started every 3 days, it will shut itself down. The car was towed 6 times, I'm a business woman, my coworkers, friends drives Mercedes Benz, and no one have heard of any such issues. Any cheaper cars, after 2 weeks at the airport, the car starts. Something is wrong with the car, something is draining the car battery if not started every 3/ 4 days. They are taking advantage to the fact, that I'm a female and older. They need to replace the car, fix, or junk their car. Someone needs to take responsi… Look up ODI 11543013 at NHTSA ↗	1 ODI 11533877 My c300 2018 only has 50k and suddenly the engine light is on, when I check it shows that I need the Positive Crankcase ventilation valve replaced. it cost $2300. As I know a lot of people who own Mercedes have the same problem. Three mechanics claim it on almost all C, CLA, and GLA models. Please make Mercedes recall it finally. Look up ODI 11533877 at NHTSA ↗	1 ODI 11504289 This is 2018 Mercedes Benz - C300 and it seems across this model line up and models from that year it looks like headliner particularly fabric starts to separate from the pillars in the rear. Across google there is bunch of C300 with the same issue in the same spot starting. The Car is only 5 years old and if it would be any other brand I would not be to upset about it. But this is Mercedes and they pride themselves of being a " Luxury " Vehicle where their standards should be much higher. Needles to say we contacted and went to one of the Merc… Look up ODI 11504289 at NHTSA ↗	0	0
Steering	0	0	—	0	0	0	0	2 ODI 11190243 TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300W. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBERS: 18V850000 (STEERING) AND 18V838000 (AIR BAGS). THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. MERCEDES-BENZ OF ORANGE PARK (7018 BLANDING BLVD, JACKSONVILLE, FL 32244, [phone removed]) WAS CONTACTED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT… Look up ODI 11190243 at NHTSA ↗ ODI 11423998 While driving in a curved onramp connecting from one street to another the vehicle experienced a complete loss of steering ability which resulted in the vehicle continuing to move straight, off the pavement, and into a wall. The vehicle bounced off of the wall and loss of steering ability continued and the vehicle could not be controlled, crossed the road, went over a guardrail, and down an embankment until it came to a stop (approx 100ft). The vehicle engine never turned off until it came to a stop at which point the vehicle was manually turne… Look up ODI 11423998 at NHTSA ↗
Electrical System	1 ODI 11257284 · 14,000 mi TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300. WHILE OPERATING THE VEHICLE, THE CONTACT NOTICED A BURNT CRAYON ODOR INSIDE THE VEHICLE. THE ODOR MADE IT DIFFICULT TO BREATHE INSIDE THE VEHICLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF GOLDENS BRIDGE (321 NY-22, GOLDENS BRIDGE, NY 10526), BUT THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 14,000. Look up ODI 11257284 at NHTSA ↗	3 ODI 11423935 To Whom It May Concern, I bought this certified preowned Mercedes Benz, and the recall is open. I have taken the car to the dealership, they deny me from service because its an over the air recall. The Mercedes Benz website clearly states on their letter for consumer that the remedy for this recall can be taken care at the dealership free of charge or an over the air update. Its July and I got the car back in February. Look up ODI 11423935 at NHTSA ↗ ODI 11446466 The sunroof on the vehicle jams and either stays partially open or won’t close in the rear completely. I finally got it to close but it will not open again. I know multiple mercedes owners who have this issue with the sunroof and if the sunroof will continue to not lock properly this could be a hazard on the highway if the brackets were to break and the glass slides off. Look up ODI 11446466 at NHTSA ↗ ODI 11543013 According to the dealership, if the car is not started every 3 days, it will shut itself down. The car was towed 6 times, I'm a business woman, my coworkers, friends drives Mercedes Benz, and no one have heard of any such issues. Any cheaper cars, after 2 weeks at the airport, the car starts. Something is wrong with the car, something is draining the car battery if not started every 3/ 4 days. They are taking advantage to the fact, that I'm a female and older. They need to replace the car, fix, or junk their car. Someone needs to take responsi… Look up ODI 11543013 at NHTSA ↗	0	—	0	1 ODI 11591967 I am wanting to add information to my original complaint. Tracking#11589822 When I called in the electrical issue to AAA the agent said this is a common problem on these cars. Next, I want to add photos the Mercedes of Fresno service department sent me during the 2nd time my car was taken in to be checked. I honestly don't remember off hand when the collision occurred, I have that paper work somewhere. I will find it and send it in also. I will also get paper work from the auto body place that fixed as much of the wiring that it could. There … Look up ODI 11591967 at NHTSA ↗	0	0
Fuel/Propulsion System	7 ODI 11446178 · 62,000 mi CYLINDER 1 SPARK PLUGS IS DAMAGED DUE TO PISTON DAMAGE, HOLE IN PISTON. IF EXTRA DAMAGE IS FOUND ON TEAR DOWN, COMPLETE ENGINE REPLACEMENT. This is direct from the repair facilities reports. While driving my 2018 C-300 there was smoking out of tail pipe, a rough vibration, hard to control the vehicle and it was starting to lose power. Not a good situation, had to pull over and have vehicle towed to the dealership. Worst part is this is a vehicle used to transport my 5 children to and from school and activities. My 16 year old also drives this … Look up ODI 11446178 at NHTSA ↗ ODI 11508445 at 67000 miles the check engine light came on and is was engine code p052e crankcase ventilation regulator valve failure. This failure will cause the ending to exhaust increased contaniments in to the air. This is a know problem by MBUSA and they have changed the part design on new vehicles , this problems comes up right after the cars warranty and they cost to repair is in excess of $2500. For this to be an emission know problem by MBUSA a recall should be issued and this problem corrected under the recall process of the NHTSA ASAP. This h… Look up ODI 11508445 at NHTSA ↗ ODI 11508446 Failed positive crankcase ventilator after 40,000 miles common problem regulating oil consumption to the engine. Causing oil burn, oil leak, inconsistent oil ventilation. Dealer is aware of the problem. Engine light is on with code P052E. Commonly reported problem for this model on the internet. Look up ODI 11508446 at NHTSA ↗	1 ODI 11533877 My c300 2018 only has 50k and suddenly the engine light is on, when I check it shows that I need the Positive Crankcase ventilation valve replaced. it cost $2300. As I know a lot of people who own Mercedes have the same problem. Three mechanics claim it on almost all C, CLA, and GLA models. Please make Mercedes recall it finally. Look up ODI 11533877 at NHTSA ↗	0	0	—	0	0	0
Structure:Body	0	1 ODI 11504289 This is 2018 Mercedes Benz - C300 and it seems across this model line up and models from that year it looks like headliner particularly fabric starts to separate from the pillars in the rear. Across google there is bunch of C300 with the same issue in the same spot starting. The Car is only 5 years old and if it would be any other brand I would not be to upset about it. But this is Mercedes and they pride themselves of being a " Luxury " Vehicle where their standards should be much higher. Needles to say we contacted and went to one of the Merc… Look up ODI 11504289 at NHTSA ↗	0	1 ODI 11591967 I am wanting to add information to my original complaint. Tracking#11589822 When I called in the electrical issue to AAA the agent said this is a common problem on these cars. Next, I want to add photos the Mercedes of Fresno service department sent me during the 2nd time my car was taken in to be checked. I honestly don't remember off hand when the collision occurred, I have that paper work somewhere. I will find it and send it in also. I will also get paper work from the auto body place that fixed as much of the wiring that it could. There … Look up ODI 11591967 at NHTSA ↗	0	—	0	0
Structure	0	0	0	0	0	0	—	0
Air Bags	0	0	2 ODI 11190243 TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300W. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBERS: 18V850000 (STEERING) AND 18V838000 (AIR BAGS). THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. MERCEDES-BENZ OF ORANGE PARK (7018 BLANDING BLVD, JACKSONVILLE, FL 32244, [phone removed]) WAS CONTACTED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT… Look up ODI 11190243 at NHTSA ↗ ODI 11423998 While driving in a curved onramp connecting from one street to another the vehicle experienced a complete loss of steering ability which resulted in the vehicle continuing to move straight, off the pavement, and into a wall. The vehicle bounced off of the wall and loss of steering ability continued and the vehicle could not be controlled, crossed the road, went over a guardrail, and down an embankment until it came to a stop (approx 100ft). The vehicle engine never turned off until it came to a stop at which point the vehicle was manually turne… Look up ODI 11423998 at NHTSA ↗	0	0	0	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 · 17.2% of complaints

Median mileage: 50,650 mi (4 usable records).

ODI 11423998

While driving in a curved onramp connecting from one street to another the vehicle experienced a complete loss of steering ability which resulted in the vehicle continuing to move straight, off the pavement, and into a wall. The vehicle bounced off of the wall and loss of steering ability continued and the vehicle could not be controlled, crossed the road, went over a guardrail, and down an embankment until it came to a stop (approx 100ft). The vehicle engine never turned off until it came to a stop at which point the vehicle was manually turne…

Look up ODI 11423998 at NHTSA ↗

ODI 11459021 · 54,000 mi

The contact owns a 2018 Mercedes-Benz C300. The contact stated while driving 35 MPH, there was white smoke coming from exhaust. The contact stated that the check engine warning light illuminated. The contact stated that after turning off the vehicle the smoke cleared. The vehicle was towed to dealer but was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 54,000.

Look up ODI 11459021 at NHTSA ↗

ODI 11475159

Look up ODI 11475159 at NHTSA ↗

Matching rule

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

Stalling or loss of power

3 mentions · 3.0% of complaints

Median mileage: Unavailable (0 usable records).

ODI 11519686

Look up ODI 11519686 at NHTSA ↗

ODI 11548498

Engine code: P052e - the widest spread engine issue on Mercedes which fails emissions testing. Crankcase ventilator issue which leads to stalling.

Look up ODI 11548498 at NHTSA ↗

ODI 11640265

The engine light is on with only 35000 miles. Upon using an OBD2 scanner, error code P052e positive crankcase ventilation(PCV) malfunction was detected. It's a problem that I researched and noticed a lot of people having the same issue. I was told that this can cause the car to stall or shut down? This causes serious risk and safety issues to drivers, passengers, and pedestrians. With so many complains about this problem, I believe the manufacturer and dealers should take responsibility before tragedies happen.

Look up ODI 11640265 at NHTSA ↗

Matching rule

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

Brake response concerns

1 mentions · 1.0% of complaints

Median mileage: 75,000 mi (1 usable records).

ODI 11102627 · 75,000 mi

Look up ODI 11102627 at NHTSA ↗

Matching rule

Fuel smell or leak mentions

1 mentions · 1.0% of complaints

Median mileage: 52,300 mi (1 usable records).

ODI 11642176 · 52,300 mi

The contact owns a 2018 Mercedes-Benz C300. The contact stated that while the vehicle was parked inside the garage, there was a strong fuel odor inside the garage. The contact stated that there was fuel leaking from the vehicle. There were no warning lights illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 52,300.

Look up ODI 11642176 at NHTSA ↗

Matching rule

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

Oil consumption or dilution

1 mentions · 1.0% of complaints

Median mileage: Unavailable (0 usable records).

ODI 11508446

Failed positive crankcase ventilator after 40,000 miles common problem regulating oil consumption to the engine. Causing oil burn, oil leak, inconsistent oil ventilation. Dealer is aware of the problem. Engine light is on with code P052E. Commonly reported problem for this model on the internet.

Look up ODI 11508446 at NHTSA ↗

Matching rule

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