U.S. public vehicle records

Mercedes-Benz C 300 problems and owner complaints

Explore the records behind recurring owner reports.

Key facts

495 owner complaints analyzed

46 distinct recall campaigns

25,751 mi median reported failure mileage

Scope: 2017 to 2026 model years. Data updated: 2026-10-01 (October 1, 2026). 131 complaints include usable failure mileage. View data status.

Owner-reported patterns

Most common problems

Engine is the most frequently named component, appearing in 150 of 495 complaints (30.3%). A complaint can name multiple components.

Recurring terms in complaint narratives
Topic	Matching reports	Share of complaints
Electrical and battery issues	47	9.5%
Braking behavior	40	8.1%
Steering behavior	36	7.3%
Engine operation	24	4.8%
Fuel system concerns	23	4.6%
Transmission and shifting	8	1.6%

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

150

Unknown Or Other

Electrical System

Fuel/Propulsion System

Structure:Body

Steering

Air Bags

Power Train

Engine: 150; Unknown Or Other: 77; Electrical System: 73; Fuel/Propulsion System: 56; Structure:Body: 34; Steering: 32; Air Bags: 26; Power Train: 26

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: 64; 25,000 to 49,999: 29; 50,000 to 74,999: 21; 75,000 to 99,999: 10; 100,000 to 149,999: 6; 150,000 and above: 1

Under 25,000 miles has the most reports with usable mileage (64). 364 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.

2016

2017

2018

2019

2020

2021

2022

2023

101

2024

2025

2026

2016: 1; 2017: 17; 2018: 14; 2019: 32; 2020: 20; 2021: 42; 2022: 63; 2023: 101; 2024: 92; 2025: 71; 2026: 42

Pattern summary

Engine leads the component reports. Electrical and battery issues appears in 47 complaint narratives. Braking behavior appears in 40 complaint narratives. Steering behavior appears in 36 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 10981577 · 2017-05-01 (May 1, 2017)

TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V114000 (ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM). THE PART TO DO THE RECALL REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE DEALER WAS NOT CONTACTED AND THE MANUFACTURER WAS NOT NOTIFIED. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.

Owner-reported narrative. Look up ODI 10981577 at NHTSA ↗

Owner report 10992424 · 2017-05-31 (May 31, 2017)

TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V114000 (ELECTRICAL SYSTEM, ENGINE AND ENGINE COOLING); 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. THE VEHICLE WAS TAKEN TO THE DEALER (MERCEDES-BENZ OF EL CAJON LOCATED AT 875 EL CAJON BLVD, EL CAJON, CA 92020; [phone removed]) WHERE IT WAS CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY UNTIL OCTOBER OF 201…

Owner-reported narrative. Look up ODI 10992424 at NHTSA ↗

Owner report 11055855 · 2017-12-21 (December 21, 2017)

11 MONTHS OLD CAR AND AROUND 3,000 MILES - CHECK BRAKE PAD WARNING WENT OFF. WILL TAKE THE CAR TO THE DEALER TO FIX THE ISSUE.

Owner-reported narrative. 3,000 miles reported. Look up ODI 11055855 at NHTSA ↗

Owner report 11203356 · 2019-04-24 (April 24, 2019)

ON 7/30/18 I WAS STRANDED IN THE MIDDLE OF THE STREET AFTER THE COOLANT MALFUNCTION LIGHT CAME ON. THE CAR BEGAN OVERHEATING, AND THERE WAS NO AC. I WAITED FOR ROADSIDE ASSISTANCE MORE THAN 3 HOURS. I WAS INFORMED OF THE INCORRECT POSITIONING OF THE ALTERNATOR FROM MANUFACTURING, WHICH RESULTED IN MULTIPLE LIGHTS ON CLUSTER. THEY FOUND THE ENGINE BELT FELL OFF & REPLACED THE V-BELT. THEY PERFORMED LI13.22-P-060187, AND RELEASED STRESS OF ALTERNATOR AND CORRECTED TORQUE. THEY ALSO WORKED ON A CAMPAIGN/RECALL (#2018070005) I HAD NOT BEEN INFORMED…

Owner-reported narrative. Look up ODI 11203356 at NHTSA ↗

Owner report 11055406 · 2017-12-18 (December 18, 2017)

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.

Owner-reported narrative. Look up ODI 11055406 at NHTSA ↗

Owner report 11090429 · 2018-04-27 (April 27, 2018)

SINCE I BOUGHT IN FEBRUARY 2017 BRAND NEW 2017 MERCEDES BENZ C300 CONVERTIBLE IN ONE YEAR OF OWNERSHIP I HAD TO BRING MY CAR SEVERAL TIMES FOR SERVICES LIKE, THE CONVERTIBLE TOP WOULD NOT WORK, THE MIRRORS WOULD NOT FOLD, THE STEERING WHEEL WOULD NOT ADJUST, ELECTRONICAL ISSUES LIKE CONNECTING MY CELL PHONE TO THE CAR. ( I HAD THE TOP GOT REPLACED ONLY AFTER COUPLE OF MONTHS AFTER I PURCHASED THE CAR.) TODAY APRIL 27 2018 I COULD NOT START THE CAR IN THE MORNING TO GO TO WORK, THE DISPLAY WAS SHOWING THE KEY IS NOT DETECTED( HAD TO EXIT THE C…

Owner-reported narrative. Look up ODI 11090429 at NHTSA ↗

Owner report 11282140 · 2019-11-25 (November 25, 2019)

THE 2017 MERCEDES-BENZ C300 VEHICLE SUFFERED A COMPLETE LOSS OF POWER/ELECTRICS WHILE IN MOTION AT SPEED AND IN TRAFFIC, CAUSING THE VEHICLE TO UNEXPECTEDLY STOP ON TWO SEPARATE OCCASIONS. THE LOSS OF ALL ELECTRICAL SUPPLY LEAVES THE VEHICLE IMMOBILE, WITHOUT WARNING INDICATORS AND CANNOT BE MOVED. THE FIRST INCIDENT WAS AROUND 5PM IN A BUSY ROAD JUNCTION IN THE DARK, WITH LIMITED LIGHTING. AS THE VEHICLE IS BLACK COLORED IT IT IS DIFFICULT TO SEE IN THESE CIRCUMSTANCES. THE SECOND INCIDENT WAS AT ANOTHER BUSY ROAD JUNCTION IN HEAVY TRAFFIC, AT…

Owner-reported narrative. 20,000 miles reported. Look up ODI 11282140 at NHTSA ↗

Owner report 11402743 · 2021-03-13 (March 13, 2021)

WHEN THE CAR IS IN THE A FEATURE, WHERE IT TURNS ON AND OFF WHEN NOT IN MOTION, IT GETS STUCK IN THAT MODE AS IF A MAGNET IS HOLDING IT IN THAT POSITION. IT WILL NOT MOVE, IT STALLS. I TURN IT OFF AND TURN IT BACK ON AND SOMETIMES IT STILL WILL NOT MOVE, SOMETIMES, IT WILL NOT TURN BACK ON. THIS HAS HAPPENED ON SEVERAL DIFFERENT OCCASIONS. ONCE, I PULLED TO THE SIDE OF MY MAILBOX TO PICK UP MAIL, AND ANOTHER OCCASION I PULLED INTO MY GARAGE, AND IT STOPPED, AND WOULD NOT TURN ON. THIS IS VERY DANGEROUS, I WOULD HATE TO BE IN TRAFFIC, RAILWAY CR…

Owner-reported narrative. 36,000 miles reported. Look up ODI 11402743 at NHTSA ↗

Owner report 11383821 · 2020-12-16 (December 16, 2020)

TL* THE CONTACT OWNS A 2017 MERCEDES BENZ C300. THE CONTACT STATED THAT WHILE THE HEATER WAS ACTIVATED, THERE WAS AN ABNORMAL FUEL ODOR COMING FROM THE VENTS INTO THE VEHICLE. THE VEHICLE WAS NOT TAKEN TO A DEALER OR MECHANIC TO BE DIAGNOSED. THE CONTACT STATED THAT THE FUEL ODOR ONLY OCCURRED DURING THE WINTER. THE CONTACT ALSO STATED THAT THE FUEL TANK HOSE CLIP THAT GOES TO THE ENGINE BECAME LOOSE AND CAUSE THE FUEL ODOR TO PENETRATE INSIDE THE VEHICLE. THE MANUFACTURER WAS CONTACTED. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MI…

Owner-reported narrative. 55,000 miles reported. Look up ODI 11383821 at NHTSA ↗

Owner report 11395633 · 2021-02-10 (February 10, 2021)

GAS LEAKING IS COMMON ISSUE AND WHEN TURNING CAR ON THERE IS A GAS SMELL. WHEN TURNING HEAT ON THERE IS A GAS SMELL. MERCEDES BENZ SAID THERE IS A LOT OF ISSUES WITH THE CLAMPS. IT IS A COMMON ISSUE. CAN CAUSE FIRE.

Owner-reported narrative. Look up ODI 11395633 at NHTSA ↗

Owner report 11580064 · 2024-03-29 (March 29, 2024)

The contact owns a 2017 Mercedes-Benz C300. The contact stated that while at a stop light the vehicle stalled. There were no warning lights illuminated. The vehicle was taken to the local dealer where it was diagnosed and determined that the battery cable needed to be replaced. The vehicle was repaired but the failure recurred. The vehicle was taken back to the local dealer where it was diagnosed that an update to the powertrain software was needed, and the transmission pump needed to be replaced. The vehicle was repaired but the failure persis…

Owner-reported narrative. 80,000 miles reported. Look up ODI 11580064 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 ↗

Compare model years

Recalls by model year

All campaigns in the snapshot affecting each model year, including recalls announced years later.

From yearThrough year

Recall campaigns

Shared campaigns appear once in each affected model year.

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026

2017: 15; 2018: 18; 2019: 17; 2020: 9; 2021: 7; 2022: 9; 2023: 9; 2024: 3; 2025: 2; 2026: 1

First model yearSecond model year

Year-by-year records

Mercedes-Benz C 300 model-year comparison
Model year	Complaints	Recalls	Change in recalls
2017	216	15	Not available
2018	99	18	+3
2019	69	17	-1
2020	33	9	-8
2021	14	7	-2
2022	25	9	+2
2023	22	9	0
2024	11	3	-6
2025	4	2	-1
2026	2	1	-1

Explore the data

Vehicle analysis explorer

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

Data completeness

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

26.5%Usable mileage131 / 495 records

100.0%Valid incident date495 / 495 records

100.0%Valid filing date495 / 495 records

100.0%Ordered incident and filing dates495 / 495 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	5,350–61,000 mi	34,000 mi	23	ODI 11022984 · 40 mi TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ C300. THE CONTACT STATED THAT THE VEHICLE WAS EQUIPPED WITH THE PUSH TO START FEATURE. WHEN THE VEHICLE WAS STARTED, IT VIBRATED ABNORMALLY. THE CONTACT STATED THAT THE VEHICLE WAS TAKEN TO HENDRICK MOTORS OF CHARLOTTE-MERCEDES BENZ (5201 E INDEPENDENCE BLVD, CHARLOTTE, NC 28212, [phone removed]). THE CONTACT WAS INFORMED THAT THE VEHICLE PERFORMED AS INTENDED. THE VEHICLE WAS INCLUDED IN NHTSA CAMPAIGN NUMBER: 17V114000 (ELECTRICAL SYSTEM, ENGINE AND ENGINE COOLING). THE VEHICLE WAS NOT REPAIRED. THE M… Look up ODI 11022984 at NHTSA ↗ ODI 11337524 · 48,000 mi PISTON 1 CRACKED AT 48,000 MILES. MB TOLD OWNER THAT THE ENGINE HAD TO BE REPLACED BUT WHEN FINDING OUT THAT THE WARRANTY WAS UP AT 50,000 THEY REPLACED THE PISTON INSTEAD. CAR IS STILL SHAKING AT IDLE AND ROUGH RIDE. ENGINE SHAKES AND JERKS. Look up ODI 11337524 at NHTSA ↗ ODI 11342812 · 48,000 mi 2017 MERCEDES C300 COUPE 49,000 MILES. THIS CAR HAS BEEN TO THE SERVICE CENTER 10 TIMES FOR ENGINE PROBLEMS " VIBRATIING, JERKING, SHAKING AND TICKING" LAST VISIT AT HOEHN MERCEDES,. SERVICE TECH SAID THAT THESE ENGINES AUTOMATICALLY VIBRATE AND JERK AND THAT IS JUST THE NATURE OF THE BEAST?? WTHECK???!! HAVE ALREADY HAD PISTON 1 CRACK AND BREAK, MECHANIC NEVER FOUND THE BROKEN PIECE. CAR IS MUCH WORSE SINCE THAT REPAIR. HOEHNN MB TOLD ME THAT THEY WERE REPLACING THE ENGIBE BUT WHWN I PICKED UP THE VAN THEY SAID THEY DECIDED JUST TO REPLACE PIS… Look up ODI 11342812 at NHTSA ↗
Unknown Or Other	774–32,750 mi	5,500 mi	12	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 ↗ ODI 11041430 · 95 mi WHILE DRIVING THE CARE, I NOTICED THE SEAT BELT LIGHT REMAINED ON DESPITE BEING BUCKLED AND THE PASSENGER AIR WAS NOT SET DESPITE MY WIFE SITTING IN THE SEAT. I FOUND THIS ODD, CONTACTED THE DEALERSHIP FOR SERVICE AND RESEARCHED IF THE CAR HAD A RECALL...THIS CAR DID HAVE A RECALL AND WAS SOLD WHILE IN ACTIVE RECALL STATUS. FEDERAL LAW EXPLICITLY PROHIBITS DEALERSHIPS FROM SELLING A NEW CAR IF A PENDING RECALL HASN'T BEEN PERFORMED. AS, A RESULT, I NO LONGER WANT THIS CAR BECAUSE THE CAR SHOULD NOT HAVE BEEN SOLD UNTIL THE RECALL WAS PREPARED. … Look up ODI 11041430 at NHTSA ↗ ODI 11042803 · 2,500 mi WINDSHIELD QUALITY DOES NOT MEET MY EXPECTATION. MY WINDSHIELD CRACKED WITHIN A COUPLE MONTHS BY A PIECE OF ROCK ON THE ROAD WHILE DRIVING ON FREEWAY. Look up ODI 11042803 at NHTSA ↗
Electrical System	6,000–52,800 mi	20,000 mi	17	ODI 10949803 · 8,000 mi VEHICLE HORN WILL NOT FUNCTION WHEN IGNITION SWITCH IS IN OFF POSITION. Look up ODI 10949803 at NHTSA ↗ ODI 11022984 · 40 mi TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ C300. THE CONTACT STATED THAT THE VEHICLE WAS EQUIPPED WITH THE PUSH TO START FEATURE. WHEN THE VEHICLE WAS STARTED, IT VIBRATED ABNORMALLY. THE CONTACT STATED THAT THE VEHICLE WAS TAKEN TO HENDRICK MOTORS OF CHARLOTTE-MERCEDES BENZ (5201 E INDEPENDENCE BLVD, CHARLOTTE, NC 28212, [phone removed]). THE CONTACT WAS INFORMED THAT THE VEHICLE PERFORMED AS INTENDED. THE VEHICLE WAS INCLUDED IN NHTSA CAMPAIGN NUMBER: 17V114000 (ELECTRICAL SYSTEM, ENGINE AND ENGINE COOLING). THE VEHICLE WAS NOT REPAIRED. THE M… Look up ODI 11022984 at NHTSA ↗ 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 ↗
Fuel/Propulsion System	32,750–60,250 mi	51,000 mi	6	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 ↗ ODI 11298512 · 15,555 mi EXHAUST WAS COMING INTO THE CAR FOR MONTH. WHEN I STARTED THE CAR TO LET IT WARM UP IN WINTER MONTHS, I WOULD GET IN AND WONDER WHY I SMELLED GAS OR FUMES. FIGURED IT WAS FROM SITTING. NO DASHBOARD LIGHTS CAME ON, NO C02 SENSORS IF THERE ARE ANY, NOTHING CAME ON IN THE INTERIOR TO WARN ME THERE WAS AN INSANE. ONE PERSON TOLD ME THE PART WAS 'DEFECTIVE' ANOTHER PERSON TOLD MY BOYFRIEND THE PART WAS 'SPLIT MOST LIKELY FROM ROAD CONDITIONS' - THIS PUT MY LIFE AND MY 10 YEAR OLD'S LIFE AT RISK. IT REALLY NEEDS TO BE CHECKED OUT BECAUSE THE C300 COU… Look up ODI 11298512 at NHTSA ↗ ODI 11396042 · 47,000 mi A FUEL LINE IN THE ENGINE COMPARTMENT JUST ABOVE THE SKID PLATE ON THE DRIVES SIDE JUST RIGHT OF THE FRONT WHEEL WELL LEAKS FUEL WHERE THE LINE IS CRIMPED COMING FROM THE HIGH PRESSURE FUEL PUMP. FUEL COLLECTS ON THE SKID PLATE AND WHEN A STOP AT IDEA PRODUCES A STRONG FUEL SMELL IN THE CABIN OF THE CAR Look up ODI 11396042 at NHTSA ↗
Structure:Body	7,738–15,000 mi	8,500 mi	6	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 ↗ ODI 11112163 · 17,000 mi I HIT A BEAR IN MONTANA IN MY 2017 MERCEDES C300 AT 86MPH AND DESTROYED THE FRONT OF MY CAR. THE SEATBELTS DEPLOYED AND WRENCHED US INTO OUR SEATS AND SMOKE CAME OUT OF THE FRONT AIR VENTS BUT THE AIRBAGS DID NOT GO OFF. ON THE DASH THE VEHICLES STATED THAT THE AIRBAGS IN ALL 4 ZONES IN THE CAR MALFUNCTIONED AND SERVICE IS REQUIRED. MERCEDES IS STATING THAT THE LIGHT IS FROM A SEATBELT ERROR CODE BUT THE DASH DID NOT SAY ANYTHING ABOUT SRS OR SEATBELTS. I DO NOT WANT TO PUT MY FAMILY BACK IN THE CAR AND DO NOT FEEL IT SHOULD BE REPAIRED. PLEASE… Look up ODI 11112163 at NHTSA ↗ ODI 11286307 · 8,000 mi SUDDEN ACCELERATION AFTER PULLING VERY SLOWLY INTO PARKING SPACE. ALMOST STOPPED. CAR SUDDENLY ACCELERATED, JUMPED A CURB FROM, WENT UP AN EMBANKMENT AND HIT A TREE. WAS ABLE TO REVERSE AND BACK DOWN. IT WILL TAKE A MONTH FOR BODY WORK. NOTIFIED MERCEDES DEALER. THEY WILL RUN DIAGNOSTICS ON JAN. 7. Look up ODI 11286307 at NHTSA ↗
Steering	13,348–43,886 mi	25,000 mi	7	ODI 11140698 · 9,190 mi PROBLEM "POWER STEERING MALFUNCTION" . FRIST TIME OF THIS HAPPENED WAS FROM MAY 17, 2018,THE STEERING WHEEL CANNOT MOVE WHEN THE VEHICLE WAS START UP. SECOND TIME IS TODAY,OCT 16,2018. WHEN I START UP THE CAT, "POWER STEERING MALFUNCTION" COME UP ON SCREEN. THINK IF STEERING CANNOT TURNING WHILE DRIVING ON HIGHWAY, WHAT WILL HAPPEN! ONE OF MY FRIEND BOSS HAD SAME PROBLEM WHILE HE IS TURNING ON THE ROAD AND HIT THE WALL! Look up ODI 11140698 at NHTSA ↗ ODI 11176106 · 3,000 mi POWER STEERING FAILED WHILE DRIVING NEARLY CAUSING A MULTI CAR ACCIDENT. Look up ODI 11176106 at NHTSA ↗ ODI 11415611 · 44,771 mi SO I JUST GOT MY MERCEDES BENZ C300 4MATIC I ONLY HAVE 44,711 MILES ON IT AND I BARELY DRIVE IT, SO TODAY I WAS DRIVING AND THE WHOLE DAY THINGS WERE GREAT AND I STOPPED AT A STORE GOT BACK IN AND IT SAYS 'POWER STEERING MALFUNCTION' I WAS ON A STREET IN THE CITY, I'M ON CONFUSED ON HOW THIS IS HAPPENING TO A CAR I JUST GOT FROM THE DEALERSHIP THAT IS PRACTICALLY NEW, NOW LET ME MENTION THAT THIS IS A ON AND OFF ISSUE THROUGH OUT THIS WHOLE DAY IT HAS CAME ON AND OFF TWICE Look up ODI 11415611 at NHTSA ↗
Air Bags	4,865–15,500 mi	10,000 mi	7	ODI 11041430 · 95 mi WHILE DRIVING THE CARE, I NOTICED THE SEAT BELT LIGHT REMAINED ON DESPITE BEING BUCKLED AND THE PASSENGER AIR WAS NOT SET DESPITE MY WIFE SITTING IN THE SEAT. I FOUND THIS ODD, CONTACTED THE DEALERSHIP FOR SERVICE AND RESEARCHED IF THE CAR HAD A RECALL...THIS CAR DID HAVE A RECALL AND WAS SOLD WHILE IN ACTIVE RECALL STATUS. FEDERAL LAW EXPLICITLY PROHIBITS DEALERSHIPS FROM SELLING A NEW CAR IF A PENDING RECALL HASN'T BEEN PERFORMED. AS, A RESULT, I NO LONGER WANT THIS CAR BECAUSE THE CAR SHOULD NOT HAVE BEEN SOLD UNTIL THE RECALL WAS PREPARED. … Look up ODI 11041430 at NHTSA ↗ ODI 11112163 · 17,000 mi I HIT A BEAR IN MONTANA IN MY 2017 MERCEDES C300 AT 86MPH AND DESTROYED THE FRONT OF MY CAR. THE SEATBELTS DEPLOYED AND WRENCHED US INTO OUR SEATS AND SMOKE CAME OUT OF THE FRONT AIR VENTS BUT THE AIRBAGS DID NOT GO OFF. ON THE DASH THE VEHICLES STATED THAT THE AIRBAGS IN ALL 4 ZONES IN THE CAR MALFUNCTIONED AND SERVICE IS REQUIRED. MERCEDES IS STATING THAT THE LIGHT IS FROM A SEATBELT ERROR CODE BUT THE DASH DID NOT SAY ANYTHING ABOUT SRS OR SEATBELTS. I DO NOT WANT TO PUT MY FAMILY BACK IN THE CAR AND DO NOT FEEL IT SHOULD BE REPAIRED. PLEASE… Look up ODI 11112163 at NHTSA ↗ ODI 11172855 · 14,000 mi TL* THE CONTACT OWNED A 2017 MERCEDES-BENZ C300. WHILE AT A STOP LIGHT, THE CONTACT'S VEHICLE WAS INVOLVED IN AN HEAD ON COLLISION. THE DRIVER'S AIR BAG DEPLOYED, BUT NOT TO FULL CAPACITY. THE CONTACT SUSTAINED HEAD AND NECK INJURIES THAT REQUIRED MEDICAL ATTENTION. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO A TOW YARD. THE VEHICLE WAS NOT DIAGNOSED. THE VEHICLE WAS DESTROYED. THE MANUFACTURER AND DEALER WERE NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 14,000. Look up ODI 11172855 at NHTSA ↗
Power Train	36,000–62,000 mi	36,000 mi	5	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 ↗ ODI 11402743 · 36,000 mi WHEN THE CAR IS IN THE A FEATURE, WHERE IT TURNS ON AND OFF WHEN NOT IN MOTION, IT GETS STUCK IN THAT MODE AS IF A MAGNET IS HOLDING IT IN THAT POSITION. IT WILL NOT MOVE, IT STALLS. I TURN IT OFF AND TURN IT BACK ON AND SOMETIMES IT STILL WILL NOT MOVE, SOMETIMES, IT WILL NOT TURN BACK ON. THIS HAS HAPPENED ON SEVERAL DIFFERENT OCCASIONS. ONCE, I PULLED TO THE SIDE OF MY MAILBOX TO PICK UP MAIL, AND ANOTHER OCCASION I PULLED INTO MY GARAGE, AND IT STOPPED, AND WOULD NOT TURN ON. THIS IS VERY DANGEROUS, I WOULD HATE TO BE IN TRAFFIC, RAILWAY CR… Look up ODI 11402743 at NHTSA ↗ ODI 11580064 · 80,000 mi The contact owns a 2017 Mercedes-Benz C300. The contact stated that while at a stop light the vehicle stalled. There were no warning lights illuminated. The vehicle was taken to the local dealer where it was diagnosed and determined that the battery cable needed to be replaced. The vehicle was repaired but the failure recurred. The vehicle was taken back to the local dealer where it was diagnosed that an update to the powertrain software was needed, and the transmission pump needed to be replaced. The vehicle was repaired but the failure persis… Look up ODI 11580064 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	8	None	ODI 11624452 small to much gas inside the cab and outside and bouth seatbelt doosent work corectly Look up ODI 11624452 at NHTSA ↗ ODI 11625696 The valve for crankcase ventilation has a malfunction. The actuator is blocked Select 'Error codes / Events' menu in Engine Control Unit. Then read fault memory. Look up ODI 11625696 at NHTSA ↗ ODI 11624574 I was leaving a gas station after pumping gas, and as I began to turn onto the road my car failed to respond in any way. It would not accelerate or break, the wipers suddenly came on and the headlights and emergency lights began blinking off and on. I was 1/2 second from being t-boned in the driver-side door by an oncoming Ford F350. The Ford F350 driver lost control of their vehicle trying to swerve to avoid hitting my car and did a 360-degree turn in the middle of the road, almost being hit multiple times by other vehicles because the Ford F… Look up ODI 11624574 at NHTSA ↗
2024-12	1	None	ODI 11628347 When starting vehicle, center screen of vehicle was completely off and dark. Moreover, with this screen being off, you are not able to control any of the vehicle functions such as AC, Maps, Radio, Rear Camera, etc. On the other hand, on the digital speedometer screen, a warning message states "Blind Spot Assist Inoperative" and when putting the vehicle in gear, a loud beep sounds within the car and then the next warning message appears that states, "PARKTRONIC" inoperative see owners manual" Look up ODI 11628347 at NHTSA ↗
2025-01	5	None	ODI 11635619 Error code P052E71 on a 2017 c300 with 100k miles. It seems to be a very common and recurring issue that appears to have no real solution and is costing consumers thousands upon thousands. This malfunction does relate to emissions and this vehicle is operated in California. Look up ODI 11635619 at NHTSA ↗ ODI 11635775 PVC VALVE CODE. P052E Mercedes should fix this! Look up ODI 11635775 at NHTSA ↗ ODI 11633699 Leaking fuel as described in one of the previous recalls for the car. There is a fire hazard but the VIN is not listed as being eligible. Look up ODI 11633699 at NHTSA ↗
2025-02	4	None	ODI 11643047 this is my send time writing in. mercedes used the wrong wrist pins for the pistons leading to my wife getting a cracked piston on freeway in phx.if you look up cylinder 1 issues on this model there is a lot of people who have encountered this. why this hasn't been recalled and sticking consumers with a10k plus repair is beyond me. if you use the wrong parts you should be responsible for the repair!!! Look up ODI 11643047 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 ↗ 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	5	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 ↗ ODI 11648766 Po52E71- Emissions issue with crankcase. Mercedes implemented an extended warranty on various models but excluded 2019 C300, which definitely has the same issues. See below in reference to previous models. IMPORTANT EMISSION EXTENDED WARRANTY INFORMATION In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC (“MBUSA”) is extending the warranty coverage on the intake line assembly in certain Model Year (“MY”) vehicles listed below from the o… Look up ODI 11648766 at NHTSA ↗ ODI 11647724 Sunroof is not closing Look up ODI 11647724 at NHTSA ↗
2025-04	4	None	ODI 11654348 ESP control unit software Recall 2016090002 Recall 2017110002 Recall 2020080016 And my car shows there’s cero recall active but is giving me problem showing code: U0121 u1110 U0122 B227d U0423 B227d Look up ODI 11654348 at NHTSA ↗ ODI 11656486 unknown Look up ODI 11656486 at NHTSA ↗ ODI 11656739 · 60,000 mi The contact owns a 2019 Mercedes-Benz C300. The contact stated that while at a stoplight, there was an abnormal odor of fuel inside the vehicle. The contact stated that the vehicle failed to respond as needed. The vehicle was restarted and shut off independently. The check engine warning light was illuminated. The contact stated that the failure was related to NHTSA Campaign Number: 21V961000 (Fuel System, Gasoline). The vehicle was towed to an independent mechanic who determined that the failure was a fuel rail failure. The local dealer was no… Look up ODI 11656739 at NHTSA ↗
2025-05	4	25V253000, 25V255000	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 ↗ ODI 11664002 I had a A1 service completed on 5.23.25 with Mercedes Benz dealership in Sourh San Francisco. 2233 Gellert Blvd. On [XXX] 48 hrs later as I was leaving working- 4-5 blocks before entering the freeway, my car suddenly struggled to drive over 20MPH and the check engine light came on. I pulled over a block before entering freeway. I had it towed and got a Lyft’ ride home. It was a holiday weekend and I had to rent a car . Vehicle accessed 2 days later . I was told it needed a software update and there was a bulletin that came out in 2024 recomm… Look up ODI 11664002 at NHTSA ↗ 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 ↗
2025-06	4	None	ODI 11665836 The sunroof is very glitchy and this is common in all Benz I have had a few different Benz and they all eventually have this same issue with their panoramic sunroof. Sometimes it opens half way life one side is up and the other side is closed and other times it will open fully but not close and other times it won’t open at all. This is a common problem that many Benz owners have stated this in the Benz forums all over. This is a safety issue due to unexpected weather conditions if it rains and it’s stuck inside gets damage and owners get wet wh… Look up ODI 11665836 at NHTSA ↗ ODI 11666563 The contact owns a 2017 Mercedes-Benz C300. The contact stated that both the front driver’s side seat belt and front passenger's side seat belt had failed to retract as needed. There was no warning light illuminated. Additionally, the contact stated that the seat belts buckles would unintendedly lodge under the seats. The vehicle was taken to the local dealer, but was not diagnosed or repaired. The contact related the failure to NHTSA Campaign Number: 21V032000(Seat Belts); however, the VIN was not included. The manufacturer was notified of the… Look up ODI 11666563 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 ↗
2025-07	6	None	ODI 11674814 My car caught on fire due to AC malfunction Look up ODI 11674814 at NHTSA ↗ ODI 11676702 In October 2024, the rear subframe was replaced due to rust perforation in the area of the suspension arm mounting bracket. I had no warning. The car was in for routine service at Mercedes Benz of New London. It had rusted from the inside out and was considered unsafe to drive by the Mercedes service advisor. I could have had a serious accident! I had no choice but to replace the subframe as it is my only vehicle. Shockingly I learned many others have had this issue with various Mercedes models/years and that Mercedes Benz knows of this se… Look up ODI 11676702 at NHTSA ↗ ODI 11676589 Engine stuttered violently while driving 40mph. Check engine light was coming on and off. I immediately pulled to the roadside for my safety. I put the vehicle in park and cycled the ignition and the problem disappeared. the vehicle stuttered twice a few miles as I was taking the vehicle to the garage. I haven't had it serviced yet. The vehicle was serviced in the past for a Recall that had similar issues. Look up ODI 11676589 at NHTSA ↗
2025-08	9	None	ODI 11680437 The sunroof exploded spontaneously while driving to a destination. When the incident happened, I was stopped at a red light. I panicked as it sounded like gunshots hitting my car. I pulled over to the nearest safest destination to inspect the car. This put the safety of myself at risk and others at risk who were driving along the sides and/or behind me. This incident was confirmed by a dealer, as I went to Mercedes Benz Sugar Land on the following day of the incident and was quoted around $3,700 to have it repaired. The vehicle not been inspect… Look up ODI 11680437 at NHTSA ↗ ODI 11681330 · 129,000 mi The contact owns a 2017 Mercedes-Benz C300. The contact stated that while driving at 60 MPH, the contact became aware that an unknown part had detached from the vehicle. The contact stated that after stopping to refuel the vehicle, it was discovered that the roof panel was missing. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact related the failure to NHTSA Campaign Number: 23V854000 (Structure); however, the VIN was not included in the recall. The manufacturer was not made aware of the failure. The f… Look up ODI 11681330 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 ↗
2025-09	4	None	ODI 11690472 Sunroof Front Trim for Mercedes-Benz GLC300 IS ALL SCRATCHED BUT MERCEDES BENZ SAYS IT IS NOT COVERED BY THEM. Look up ODI 11690472 at NHTSA ↗ 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 ↗ ODI 11688189 · 157,000 mi The contact owns a 2019 Mercedes-Benz C300. The contact stated that while driving at various speeds, the vehicle suddenly lost motive power and decelerated. The accelerator pedal was depressed while attempting to accelerate. The contact stated that the fuel gauge failed to accurately display the level of fuel in the tank. The check engine warning light was intermittently illuminated. The vehicle was taken to the dealer, who diagnosed that the fuel level sensors had failed. The fuel tank and fuel pump needed to be replaced. The vehicle was not r… Look up ODI 11688189 at NHTSA ↗
2025-10	11	None	ODI 11693851 See attached document for complaint. Look up ODI 11693851 at NHTSA ↗ ODI 11693928 Sunroof detachment Sunroof fell off while driving Look up ODI 11693928 at NHTSA ↗ ODI 11695341 This is the same as recall for NHTSA ID: 21V-197. The panel flew off my 2017 Mercedes C300 W205. My vin number is not included in the recall. This is a safety issue and will need to be replaced. Look up ODI 11695341 at NHTSA ↗
2025-11	9	None	ODI 11697621 · 105,000 mi The contact owns a 2017 Mercedes-Benz C300. The contact stated that while driving 65 MPH on the highway, the contact heard a popping sound coming from an unknown part of the vehicle. The contact pulled over to the side of the road, exited the vehicle, and became aware that the roof panel had shuddered. The contact stated there was no glass in the vehicle. No injuries were sustained. The contact stated that the failure had occurred on two occasions. The vehicle was not taken to an independent mechanic or the dealer to be diagnosed. The vehicle w… Look up ODI 11697621 at NHTSA ↗ ODI 11698322 Cabin smells heavily like fuel and has a check engine light possibly a fuel leak Look up ODI 11698322 at NHTSA ↗ ODI 11699173 · 67,000 mi The contact owns a 2017 Mercedes-Benz C300. The contact stated that upon arriving at his destination and exiting the vehicle, the driver’s side seat belt retracted and became stuck in the retracted position. As a result, the contact was unable to use the driver's side seat belt. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the seat belt assembly. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 21V032000 (Seat Belts),… Look up ODI 11699173 at NHTSA ↗
2025-12	6	None	ODI 11702507 any action on Case 11699173 ? Look up ODI 11702507 at NHTSA ↗ ODI 11705275 While driving home from work, without any warning or blunt force the sunroof exploded and shattered glass was everywhere Look up ODI 11705275 at NHTSA ↗ ODI 11708103 UNKNOWN it was just one day I started my car and turned the A/C on and I started getting this strong gasoline smell. I went on like a saw there is a recall for this problem for the M274 engines. Look up ODI 11708103 at NHTSA ↗
2026-01	8	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 ↗ ODI 11708992 While driving at approximately 65 mph on the I-405 freeway in Irvine, CA during rainy conditions, my 2019 Mercedes-Benz C300 suddenly and completely lost acceleration without warning. At the same moment, a Check Engine Light illuminated on the dash. I was forced to coast across all lanes and stop in the emergency shoulder in a very unsafe area with high-speed traffic passing close by in low visibility rainy conditions. Multiple vehicles nearly struck us, including one that had to emergency brake directly behind my car in the shoulder. I contac… Look up ODI 11708992 at NHTSA ↗ ODI 11712677 While driving on highway, the engine light came on, a diagnostic test was performed by dealer, oil control valve defected) This could cause engine to lock up while driving, a serious safety concern. I contacted Mercedes Benz corporate office seeking help, because of factory defect. They're not assisting me with this extreme safety matter!! Look up ODI 11712677 at NHTSA ↗
2026-02	2	None	ODI 11716768 · 54,000 mi Odometer Fraud. The contact purchased a 2019 Mercedes-Benz C300. The contact stated that after purchasing the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. The contact stated that at the time of purchase, the odometer reading was approximately 54,000 miles. At the time of registration, the mileage was approximately 54,000 miles, and the same mileage was also reflected on the Carfax report. The contact stated that the mileage discrepancy was later discovered through a public report with the Feder… Look up ODI 11716768 at NHTSA ↗ ODI 11718583 I am reporting a catastrophic repeat engine failure on my 2020 Mercedes-Benz C300. On October 9, 2025, with 26,589 miles, the vehicle suffered a Cylinder 2 failure (exhaust valves), causing a dangerous loss of power in traffic. I paid $4,100.43 for a $10,000 plus cylinder head replacement at an authorized dealer (Mercedes-Benz of Atlanta South) on November 13, 2025. Following the repair, the vehicle continued to exhibit multiple 'Check Engine Oil Level' warnings. On February 4, 2026, less than 90 days after the major repair, the engine suffered a… Look up ODI 11718583 at NHTSA ↗
2026-03	4	None	ODI 11725960 Check engine light for P052E which has been coming and going off for years now. Now the check engine light is there permanently. I spoke to Mercedes Benz customer service and requested for them to fix the problem now that the light is on permanently but they refuse to fix it because the car has 222,000 miles on it. This should be a recall from the manufacturer not an extended warranty coverage. The Mercedes dealer in Valencia California told me they now only do a software update and put a plug cap on the sensor and want to charge me $850 even t… Look up ODI 11725960 at NHTSA ↗ 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 ↗ ODI 11721425 VEHICLE IS NEW TO ME AS OF JAN 6, 2026. THE BRAKES ARE SPONGY, BUT WHEN THE CAR SHIFTS FROM D3 TO D2, IT RELEASES AND UNLESS I PRESS THE BRAKE AGAIN IT WOULD GLIDE INTO AN INTERSECTION OR INTO THE VEHICLE IN FRONT OF ME. THIS HAS BEEN LOOKED AT BY MY SELLING DEALER THREE TIMES AND ANOTHER DEALER ONE MORE TIME. BRAKES HAVE BEEN FLUSHED, ELECTRONIC BOX HAS BEEN EXCHANGED BUT THE PROBLEM STILL IS PRESENT. I AM CONCERNED THAT I MAY HAVE A MAJOR BRAKE FAILURE. I FOUND OUT THERE HAVE BEEN MANY SIMILAR REPORTS OF THIS CONDITION BUT MERCEDES IS DO… Look up ODI 11721425 at NHTSA ↗
2026-04	3	None	ODI 11729410 · 53,000 mi The contact owns a 2019 Mercedes-Benz C300. The contact stated that while driving and attempting to close the sunroof, the sunroof made an abnormal popping sound. The contact pulled over and attempted to close the sunroof, but the sunroof failed to close. The contact related the failure to NHTSA Campaign Number: 21V197000 (Structure); however, the VIN was not associated with the recall. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not contacted. The failure mileage was approximately 53… Look up ODI 11729410 at NHTSA ↗ ODI 11731613 · 100,000 mi The contact owns a 2020 Mercedes-Benz C300. The contact stated that while at a stop, the vehicle failed to accelerate as intended. There was no warning light illuminated. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 100,000. Look up ODI 11731613 at NHTSA ↗ ODI 11733212 Vehicle has ongoing and recurring electrical and engine-related defects that affect safe operation. The primary systems involved are the electrical system, engine ignition system, and powertrain. The vehicle is available for inspection upon request. Prior service records show issues beginning in 2020 involving repeated electronic system failures requiring multiple repairs and component replacements. Since purchasing the vehicle in April 2023, the vehicle has developed more serious failures, including: – September 2024: Check engine light with… Look up ODI 11733212 at NHTSA ↗
2026-05	5	26V281000	ODI 11735746 strong evident fuel/ gas smell when driving and when the car is in park after driving. Look up ODI 11735746 at NHTSA ↗ ODI 11738037 · 65,422 mi The contact owns a 2017 Mercedes-Benz C300. While driving at approximately 15 mph, the contact observed smoke emanating from under the hood. The vehicle was driven to her work location and parked. Upon exiting the vehicle and opening the hood, she observed orange flames coming from the engine compartment. A parking attendant extinguished the fire, and a police and/or fire report was filed. The vehicle was towed to a dealer and diagnosed with a fuel line leak that caused the engine harness to come apart. The leaking fuel hose from the high-press… Look up ODI 11738037 at NHTSA ↗ ODI 11738906 Upon starting engine while parked the engine vibrated roughly then stopped. Engine light and coolant light illuminated but shut off. Vehicle proceeded as normal, however, as I proceeded for the highway about 1 - 1/2 blocks and approximately 1,200 feet before approaching highway the vehicle 1200 abruptly lost acceleration; engine light and coolant light illuminated again, then engine abruptly shut down in the middle of the road causing a severe safety hazard. Putting myself and others at risk. There were no symptoms of the problems prior to the … Look up ODI 11738906 at NHTSA ↗
2026-06	5	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 ↗ ODI 11742426 My 2019 Mercedes-Benz C300 Coupe’s front driver seat belt will not fully retract to its stowed position. This creates THREE safety hazards: 1.Passenger Trip Hazard: The extended belt causes difficulty when exiting from the rear seat , passengers can easily trip over the non-retracting belt 2.Door Damage Risk: Belt gets stuck in the door, preventing proper closure and potentially damaging the door or wearing down the seat belt webbing 3.Safety System Failure: A belt that doesn’t retract properly may not fully restrain occupants in a crash, compr… Look up ODI 11742426 at NHTSA ↗ ODI 11745068 Car fails to accelerate past 25 mph when entering roadway. Roadway area is 45mph and vehicle would not accelerate to reach safe levels. This out myself and occupants of my vehicle in danger as traffic is already at the 45+ mph limit. Vehicle has 30,000 miles. Engine light came on after incident. Look up ODI 11745068 at NHTSA ↗
2026-07	5	26V481000	ODI 11753176 2017 Mercedes c300 the switchover valve in the diagnostic module of the evaporative emission control system is jammed open. This issue was called for recall for models 2018 or later, but 2017 was not part of it. Look up ODI 11753176 at NHTSA ↗ ODI 11747712 Throttle body and accelerator pedal position sensors failed. Component is available for inspection upon request. Independent service center confirmed failure on 1/3/2026 with 6 stored fault codes: P2101, P0122, P0222, P0123, P0223, P2135. Vehicle shuts off while driving without warning at various speeds. Loss of power steering and power brakes occurs when engine stalls, creating immediate risk of crash, injury or death to occupants and other drivers. Manufacturer customer service confirmed in writing 4 times that engine shutting off while dri… Look up ODI 11747712 at NHTSA ↗ ODI 11747837 Automatic trunk closing mechanism caused the trunk hood to close on my head as I was putting groceries in the trunk. This has occurred several times in the past but this time it hit my head with more force. I have not brought it to a dealer and it has not been inspected by the manufacturer, police or any other entity. There was no warning or alarm before it closed. This could cause serious head injury to an individual on blood thinners. Look up ODI 11747837 at NHTSA ↗
2026-08	5	None	ODI 11759861 The convertible roof gets stuck partially in open or closed position. It has to be forced closed. The vehicle is always garaged and the convertible was used very carefully but still has been troublesome from the beginning Look up ODI 11759861 at NHTSA ↗ 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 ↗ ODI 11757307 Shifting gears when stopped and the car lunged forward while I was stopped at a red light. I almost hit the car in front of me at the red light. Very rough gear changes and changing out of the correct gear to the wrong one and then back into another one. Severe speed changes - jerking the car back or it lunges forward, while driving results in loss of reasonable control of the vehicle and inability to to shift correctly out of traffic. Mercedes benz has a technical service bulletin on this problem and is aware that the 9G-Tronic - internally d… Look up ODI 11757307 at NHTSA ↗
2026-09	5	None	ODI 11764699 Front roof panel came detached at hwy speed Look up ODI 11764699 at NHTSA ↗ ODI 11764481 The vehicle experienced a severe safety issue involving a sudden loss of motive power in active traffic. 1. Initial Symptoms & Diagnosis: Recently, the Check Engine Light illuminated. Although the light turned off before my scheduled appointment, I still brought the vehicle to an authorized Mercedes-Benz dealership for a safety inspection. 2. Dealer Confirmation: The dealership inspected the vehicle and diagnosed an internal electrical fault with the engine oil control valve and harness. They recommended replacing the parts. Because the vehic… Look up ODI 11764481 at NHTSA ↗ ODI 11766013 The M264 2.0L engine suffered a catastrophic internal failure. While making a left turn at an intersection, the vehicle suddenly shut off and stalled, leaving the car stranded in active traffic and creating an immediate safety risk. Prior to the shutdown, the check engine light came on accompanied by severe shaking and misfires. The vehicle was inspected by an authorized dealership service center, which confirmed complete engine failure. Mercedes-Benz issued a 15-year/150,000-mile extended warranty for the M264 exhaust valve and cylinder head a… Look up ODI 11766013 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	Electrical System	Fuel/Propulsion System	Structure:Body	Steering	Air Bags	Power Train
Engine	—	5 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 ↗ ODI 11492970 Crankcase Breather System: Vent Valve Fault code stored for block crankcase breather valve. The fault code is 052E71. A lot of Mercedes cars are reporting it online and no recall has been made. The labor to change this takes around 8-9 hours and the part costs 300. Company is doing nothing about it as a lot of W205 engines are having this issue Look up ODI 11492970 at NHTSA ↗ 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 ↗	24 ODI 10981577 TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V114000 (ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM). THE PART TO DO THE RECALL REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE DEALER WAS NOT CONTACTED AND THE MANUFACTURER WAS NOT NOTIFIED. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE. Look up ODI 10981577 at NHTSA ↗ ODI 10992424 TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V114000 (ELECTRICAL SYSTEM, ENGINE AND ENGINE COOLING); 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. THE VEHICLE WAS TAKEN TO THE DEALER (MERCEDES-BENZ OF EL CAJON LOCATED AT 875 EL CAJON BLVD, EL CAJON, CA 92020; [phone removed]) WHERE IT WAS CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY UNTIL OCTOBER OF 201… Look up ODI 10992424 at NHTSA ↗ ODI 11003589 TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V114000(ELECTRICAL SYSTEM, ENGINE AND ENGINE COOLING); 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. THE MERCEDES-BENZ OF CORAL GABLES DEALER WAS CONTACTED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE AND WAS NOT ABLE TO CONFIRM WHEN THE PARTS WERE TO BECOME A… Look up ODI 11003589 at NHTSA ↗	21 ODI 11453550 When starting the car in the morning there is fuel smell that gets into the cabin. Additionally, as the car is idle during the drive, the smell of fuel is very obvious. Windows have to be rolled down to avoid the smell Look up ODI 11453550 at NHTSA ↗ ODI 11461236 At approximately 26,500 miles of use, the check engine light came on in my Mercedes Benz C300. I brought the vehicle to the dealership and they informed me that the diagnosis was a crankcase vent valve malfunction. The MB fault code is P52E71. After paying Mercedes to fix the issue, I found forums on the internet where many other MB owners reported the same issue at around the same mileage. Being that this seems to be a common malfunction with the C300, I believe that it should be considered as a recall issue. I don't know what could have h… Look up ODI 11461236 at NHTSA ↗ ODI 11471458 Diagnosis code P052E PCV regulator valve replacement/crankcase replacement. Dealership does not want to acknowledge code while car was under warranty despite proof that it existed when check engine was diagnosed. Now code keeps coming back with check engine light on dashboard. To replace part, the engine has to be taken down since the crankcase is inside the engine. This is a malfunction during assembly/manufacturing, it is impossible to damage part while under usage. Mercedes Benz should be held responsible for part replacement and labor. I ur… Look up ODI 11471458 at NHTSA ↗	1 ODI 11696497 I am reporting a serious vehicle safety hazard caused by improper and unsafe repair work performed by USA Platinum Motor, located at 1221 California Lane #126B, Arlington, TX. I brought my 2017 Mercedes-Benz C300 in for a cold start rattle with no warning lights or prior issues. The shop diagnosed a loose timing chain and I authorized the repair. After the repairs, the vehicle was returned with critical safety defects, including a loose fuel pump, unsecured fuel line, missing bolts, and improperly reassembled engine components. Shortly after p… Look up ODI 11696497 at NHTSA ↗	0	0	15 ODI 11402743 · 36,000 mi WHEN THE CAR IS IN THE A FEATURE, WHERE IT TURNS ON AND OFF WHEN NOT IN MOTION, IT GETS STUCK IN THAT MODE AS IF A MAGNET IS HOLDING IT IN THAT POSITION. IT WILL NOT MOVE, IT STALLS. I TURN IT OFF AND TURN IT BACK ON AND SOMETIMES IT STILL WILL NOT MOVE, SOMETIMES, IT WILL NOT TURN BACK ON. THIS HAS HAPPENED ON SEVERAL DIFFERENT OCCASIONS. ONCE, I PULLED TO THE SIDE OF MY MAILBOX TO PICK UP MAIL, AND ANOTHER OCCASION I PULLED INTO MY GARAGE, AND IT STOPPED, AND WOULD NOT TURN ON. THIS IS VERY DANGEROUS, I WOULD HATE TO BE IN TRAFFIC, RAILWAY CR… Look up ODI 11402743 at NHTSA ↗ ODI 11461236 At approximately 26,500 miles of use, the check engine light came on in my Mercedes Benz C300. I brought the vehicle to the dealership and they informed me that the diagnosis was a crankcase vent valve malfunction. The MB fault code is P52E71. After paying Mercedes to fix the issue, I found forums on the internet where many other MB owners reported the same issue at around the same mileage. Being that this seems to be a common malfunction with the C300, I believe that it should be considered as a recall issue. I don't know what could have h… Look up ODI 11461236 at NHTSA ↗ ODI 11482136 My car leaked oil very fast while me & my wife were on a trip and it stopped on the highway and engine was stalling and misfiring due to a manufacture defect that is common with this model so it did put us in a very dangerous & risky situation. Now after i paid $1,740 the dealer is saying that my car needs a new engine due to cracked piston in cylinder 1 that damaged the engine which is a common problem with this model around the 50k miles. Look up ODI 11482136 at NHTSA ↗
Unknown Or Other	5 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 ↗ ODI 11492970 Crankcase Breather System: Vent Valve Fault code stored for block crankcase breather valve. The fault code is 052E71. A lot of Mercedes cars are reporting it online and no recall has been made. The labor to change this takes around 8-9 hours and the part costs 300. Company is doing nothing about it as a lot of W205 engines are having this issue Look up ODI 11492970 at NHTSA ↗ 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 ↗	—	12 ODI 11090429 SINCE I BOUGHT IN FEBRUARY 2017 BRAND NEW 2017 MERCEDES BENZ C300 CONVERTIBLE IN ONE YEAR OF OWNERSHIP I HAD TO BRING MY CAR SEVERAL TIMES FOR SERVICES LIKE, THE CONVERTIBLE TOP WOULD NOT WORK, THE MIRRORS WOULD NOT FOLD, THE STEERING WHEEL WOULD NOT ADJUST, ELECTRONICAL ISSUES LIKE CONNECTING MY CELL PHONE TO THE CAR. ( I HAD THE TOP GOT REPLACED ONLY AFTER COUPLE OF MONTHS AFTER I PURCHASED THE CAR.) TODAY APRIL 27 2018 I COULD NOT START THE CAR IN THE MORNING TO GO TO WORK, THE DISPLAY WAS SHOWING THE KEY IS NOT DETECTED( HAD TO EXIT THE C… Look up ODI 11090429 at NHTSA ↗ ODI 11415611 · 44,771 mi SO I JUST GOT MY MERCEDES BENZ C300 4MATIC I ONLY HAVE 44,711 MILES ON IT AND I BARELY DRIVE IT, SO TODAY I WAS DRIVING AND THE WHOLE DAY THINGS WERE GREAT AND I STOPPED AT A STORE GOT BACK IN AND IT SAYS 'POWER STEERING MALFUNCTION' I WAS ON A STREET IN THE CITY, I'M ON CONFUSED ON HOW THIS IS HAPPENING TO A CAR I JUST GOT FROM THE DEALERSHIP THAT IS PRACTICALLY NEW, NOW LET ME MENTION THAT THIS IS A ON AND OFF ISSUE THROUGH OUT THIS WHOLE DAY IT HAS CAME ON AND OFF TWICE Look up ODI 11415611 at NHTSA ↗ ODI 11665836 The sunroof is very glitchy and this is common in all Benz I have had a few different Benz and they all eventually have this same issue with their panoramic sunroof. Sometimes it opens half way life one side is up and the other side is closed and other times it will open fully but not close and other times it won’t open at all. This is a common problem that many Benz owners have stated this in the Benz forums all over. This is a safety issue due to unexpected weather conditions if it rains and it’s stuck inside gets damage and owners get wet wh… Look up ODI 11665836 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 ↗	5 ODI 11404183 · 43,000 mi FRONT PANEL GLASS OF PANORAMIC SUNROOF FLEW OFF THE CAR AS I WAS DRIVING ON THE HIGHWAY. Look up ODI 11404183 at NHTSA ↗ ODI 11680437 The sunroof exploded spontaneously while driving to a destination. When the incident happened, I was stopped at a red light. I panicked as it sounded like gunshots hitting my car. I pulled over to the nearest safest destination to inspect the car. This put the safety of myself at risk and others at risk who were driving along the sides and/or behind me. This incident was confirmed by a dealer, as I went to Mercedes Benz Sugar Land on the following day of the incident and was quoted around $3,700 to have it repaired. The vehicle not been inspect… Look up ODI 11680437 at NHTSA ↗ 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 ↗	3 ODI 11415611 · 44,771 mi SO I JUST GOT MY MERCEDES BENZ C300 4MATIC I ONLY HAVE 44,711 MILES ON IT AND I BARELY DRIVE IT, SO TODAY I WAS DRIVING AND THE WHOLE DAY THINGS WERE GREAT AND I STOPPED AT A STORE GOT BACK IN AND IT SAYS 'POWER STEERING MALFUNCTION' I WAS ON A STREET IN THE CITY, I'M ON CONFUSED ON HOW THIS IS HAPPENING TO A CAR I JUST GOT FROM THE DEALERSHIP THAT IS PRACTICALLY NEW, NOW LET ME MENTION THAT THIS IS A ON AND OFF ISSUE THROUGH OUT THIS WHOLE DAY IT HAS CAME ON AND OFF TWICE Look up ODI 11415611 at NHTSA ↗ ODI 11438296 I was driving on a straight away doing the speed limit which is reported seconds before the car crash. The steering wheel turned to the left really hard out of no where and wouldn’t let me gain control over the car again. I was sober it was 9am and I was aware of my driving. I ended up spinning out and landed in the ditch feet away from the light pole. I made it know to everyone what happened, but they looked at me crazy. I stopped driving that car and sent it back to Mercedes to get a detailed inspection. Which lasted about 30 days for them to… Look up ODI 11438296 at NHTSA ↗ 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 ↗	3 ODI 11041430 · 95 mi WHILE DRIVING THE CARE, I NOTICED THE SEAT BELT LIGHT REMAINED ON DESPITE BEING BUCKLED AND THE PASSENGER AIR WAS NOT SET DESPITE MY WIFE SITTING IN THE SEAT. I FOUND THIS ODD, CONTACTED THE DEALERSHIP FOR SERVICE AND RESEARCHED IF THE CAR HAD A RECALL...THIS CAR DID HAVE A RECALL AND WAS SOLD WHILE IN ACTIVE RECALL STATUS. FEDERAL LAW EXPLICITLY PROHIBITS DEALERSHIPS FROM SELLING A NEW CAR IF A PENDING RECALL HASN'T BEEN PERFORMED. AS, A RESULT, I NO LONGER WANT THIS CAR BECAUSE THE CAR SHOULD NOT HAVE BEEN SOLD UNTIL THE RECALL WAS PREPARED. … Look up ODI 11041430 at NHTSA ↗ ODI 11090429 SINCE I BOUGHT IN FEBRUARY 2017 BRAND NEW 2017 MERCEDES BENZ C300 CONVERTIBLE IN ONE YEAR OF OWNERSHIP I HAD TO BRING MY CAR SEVERAL TIMES FOR SERVICES LIKE, THE CONVERTIBLE TOP WOULD NOT WORK, THE MIRRORS WOULD NOT FOLD, THE STEERING WHEEL WOULD NOT ADJUST, ELECTRONICAL ISSUES LIKE CONNECTING MY CELL PHONE TO THE CAR. ( I HAD THE TOP GOT REPLACED ONLY AFTER COUPLE OF MONTHS AFTER I PURCHASED THE CAR.) TODAY APRIL 27 2018 I COULD NOT START THE CAR IN THE MORNING TO GO TO WORK, THE DISPLAY WAS SHOWING THE KEY IS NOT DETECTED( HAD TO EXIT THE C… Look up ODI 11090429 at NHTSA ↗ ODI 11676702 In October 2024, the rear subframe was replaced due to rust perforation in the area of the suspension arm mounting bracket. I had no warning. The car was in for routine service at Mercedes Benz of New London. It had rusted from the inside out and was considered unsafe to drive by the Mercedes service advisor. I could have had a serious accident! I had no choice but to replace the subframe as it is my only vehicle. Shockingly I learned many others have had this issue with various Mercedes models/years and that Mercedes Benz knows of this se… Look up ODI 11676702 at NHTSA ↗	0
Electrical System	24 ODI 10981577 TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V114000 (ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM). THE PART TO DO THE RECALL REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE DEALER WAS NOT CONTACTED AND THE MANUFACTURER WAS NOT NOTIFIED. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE. Look up ODI 10981577 at NHTSA ↗ ODI 10992424 TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V114000 (ELECTRICAL SYSTEM, ENGINE AND ENGINE COOLING); 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. THE VEHICLE WAS TAKEN TO THE DEALER (MERCEDES-BENZ OF EL CAJON LOCATED AT 875 EL CAJON BLVD, EL CAJON, CA 92020; [phone removed]) WHERE IT WAS CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY UNTIL OCTOBER OF 201… Look up ODI 10992424 at NHTSA ↗ ODI 11003589 TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V114000(ELECTRICAL SYSTEM, ENGINE AND ENGINE COOLING); 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. THE MERCEDES-BENZ OF CORAL GABLES DEALER WAS CONTACTED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE AND WAS NOT ABLE TO CONFIRM WHEN THE PARTS WERE TO BECOME A… Look up ODI 11003589 at NHTSA ↗	12 ODI 11090429 SINCE I BOUGHT IN FEBRUARY 2017 BRAND NEW 2017 MERCEDES BENZ C300 CONVERTIBLE IN ONE YEAR OF OWNERSHIP I HAD TO BRING MY CAR SEVERAL TIMES FOR SERVICES LIKE, THE CONVERTIBLE TOP WOULD NOT WORK, THE MIRRORS WOULD NOT FOLD, THE STEERING WHEEL WOULD NOT ADJUST, ELECTRONICAL ISSUES LIKE CONNECTING MY CELL PHONE TO THE CAR. ( I HAD THE TOP GOT REPLACED ONLY AFTER COUPLE OF MONTHS AFTER I PURCHASED THE CAR.) TODAY APRIL 27 2018 I COULD NOT START THE CAR IN THE MORNING TO GO TO WORK, THE DISPLAY WAS SHOWING THE KEY IS NOT DETECTED( HAD TO EXIT THE C… Look up ODI 11090429 at NHTSA ↗ ODI 11415611 · 44,771 mi SO I JUST GOT MY MERCEDES BENZ C300 4MATIC I ONLY HAVE 44,711 MILES ON IT AND I BARELY DRIVE IT, SO TODAY I WAS DRIVING AND THE WHOLE DAY THINGS WERE GREAT AND I STOPPED AT A STORE GOT BACK IN AND IT SAYS 'POWER STEERING MALFUNCTION' I WAS ON A STREET IN THE CITY, I'M ON CONFUSED ON HOW THIS IS HAPPENING TO A CAR I JUST GOT FROM THE DEALERSHIP THAT IS PRACTICALLY NEW, NOW LET ME MENTION THAT THIS IS A ON AND OFF ISSUE THROUGH OUT THIS WHOLE DAY IT HAS CAME ON AND OFF TWICE Look up ODI 11415611 at NHTSA ↗ ODI 11665836 The sunroof is very glitchy and this is common in all Benz I have had a few different Benz and they all eventually have this same issue with their panoramic sunroof. Sometimes it opens half way life one side is up and the other side is closed and other times it will open fully but not close and other times it won’t open at all. This is a common problem that many Benz owners have stated this in the Benz forums all over. This is a safety issue due to unexpected weather conditions if it rains and it’s stuck inside gets damage and owners get wet wh… Look up ODI 11665836 at NHTSA ↗	—	2 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 ↗ 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 ↗	4 ODI 11621666 When i scan my vehicle there are Mercedes Benz fault codes pertaining to the electrical system but also recalls that haven’t been done but when looking Mercedes Benz web site and NHTSA WEBSITE these are aren’t showing up as my particular chassis being included as part of the campaign Look up ODI 11621666 at NHTSA ↗ ODI 11696497 I am reporting a serious vehicle safety hazard caused by improper and unsafe repair work performed by USA Platinum Motor, located at 1221 California Lane #126B, Arlington, TX. I brought my 2017 Mercedes-Benz C300 in for a cold start rattle with no warning lights or prior issues. The shop diagnosed a loose timing chain and I authorized the repair. After the repairs, the vehicle was returned with critical safety defects, including a loose fuel pump, unsecured fuel line, missing bolts, and improperly reassembled engine components. Shortly after p… Look up ODI 11696497 at NHTSA ↗ 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 ↗	3 ODI 11203356 ON 7/30/18 I WAS STRANDED IN THE MIDDLE OF THE STREET AFTER THE COOLANT MALFUNCTION LIGHT CAME ON. THE CAR BEGAN OVERHEATING, AND THERE WAS NO AC. I WAITED FOR ROADSIDE ASSISTANCE MORE THAN 3 HOURS. I WAS INFORMED OF THE INCORRECT POSITIONING OF THE ALTERNATOR FROM MANUFACTURING, WHICH RESULTED IN MULTIPLE LIGHTS ON CLUSTER. THEY FOUND THE ENGINE BELT FELL OFF & REPLACED THE V-BELT. THEY PERFORMED LI13.22-P-060187, AND RELEASED STRESS OF ALTERNATOR AND CORRECTED TORQUE. THEY ALSO WORKED ON A CAMPAIGN/RECALL (#2018070005) I HAD NOT BEEN INFORMED… Look up ODI 11203356 at NHTSA ↗ ODI 11415611 · 44,771 mi SO I JUST GOT MY MERCEDES BENZ C300 4MATIC I ONLY HAVE 44,711 MILES ON IT AND I BARELY DRIVE IT, SO TODAY I WAS DRIVING AND THE WHOLE DAY THINGS WERE GREAT AND I STOPPED AT A STORE GOT BACK IN AND IT SAYS 'POWER STEERING MALFUNCTION' I WAS ON A STREET IN THE CITY, I'M ON CONFUSED ON HOW THIS IS HAPPENING TO A CAR I JUST GOT FROM THE DEALERSHIP THAT IS PRACTICALLY NEW, NOW LET ME MENTION THAT THIS IS A ON AND OFF ISSUE THROUGH OUT THIS WHOLE DAY IT HAS CAME ON AND OFF TWICE Look up ODI 11415611 at NHTSA ↗ ODI 11490679 When I started my car, the dash did not reveal park, drive, or reverse. It illuminated with a warning light indicating an Electronic Stability Problem (ESP). Research revealed this to be an important safety feature and that the Mercedes-warning-lights-electric-stability-control may have problems with traction control requiring attention. The ESP light was NOT flashing for the system to intervene – as the car was parked in my garage. It did not light up with the word ‘OFF’ to assess whether it may have been inadvertently deactivated. The light … Look up ODI 11490679 at NHTSA ↗	5 ODI 11053814 TAKATA RECALL SEATBELT ISSUES WARRANTY ITEMS /ELECTRICAL NO RESPONSE FROM DEALER AFTER REPEATED EMAILS Look up ODI 11053814 at NHTSA ↗ ODI 11078686 TL* TAKATA RECALL. THE CONTACT OWNS A 2017 MERCEDES-BENZ C300. THE CONTACT STATED THAT THERE WERE THREE RECALLS ON THE VEHICLE REGARDING THE AIR BAGS AND ELECTRICAL SYSTEM. THE VEHICLE WAS REMEDIED FOR AN AIR BAG RECALL; HOWEVER, THE PARTS HAD NOT BEEN AVAILABLE WITHIN A REASONABLE TIME FRAME. THE DEALER (MERCEDES-BENZ OF WEST HOUSTON, 1025 HWY 6, HOUSTON, TX 77079, [phone removed]) WAS UNABLE TO DETERMINE WHEN THE PARTS WOULD BE SUPPLIED FOR THE OTHER TWO RECALLS. THE MANUFACTURER WAS CONTACTED. THE NHTSA CAMPAIGN INFORMATION. THE CONTACT HAD … Look up ODI 11078686 at NHTSA ↗ ODI 11090429 SINCE I BOUGHT IN FEBRUARY 2017 BRAND NEW 2017 MERCEDES BENZ C300 CONVERTIBLE IN ONE YEAR OF OWNERSHIP I HAD TO BRING MY CAR SEVERAL TIMES FOR SERVICES LIKE, THE CONVERTIBLE TOP WOULD NOT WORK, THE MIRRORS WOULD NOT FOLD, THE STEERING WHEEL WOULD NOT ADJUST, ELECTRONICAL ISSUES LIKE CONNECTING MY CELL PHONE TO THE CAR. ( I HAD THE TOP GOT REPLACED ONLY AFTER COUPLE OF MONTHS AFTER I PURCHASED THE CAR.) TODAY APRIL 27 2018 I COULD NOT START THE CAR IN THE MORNING TO GO TO WORK, THE DISPLAY WAS SHOWING THE KEY IS NOT DETECTED( HAD TO EXIT THE C… Look up ODI 11090429 at NHTSA ↗	4 ODI 11203356 ON 7/30/18 I WAS STRANDED IN THE MIDDLE OF THE STREET AFTER THE COOLANT MALFUNCTION LIGHT CAME ON. THE CAR BEGAN OVERHEATING, AND THERE WAS NO AC. I WAITED FOR ROADSIDE ASSISTANCE MORE THAN 3 HOURS. I WAS INFORMED OF THE INCORRECT POSITIONING OF THE ALTERNATOR FROM MANUFACTURING, WHICH RESULTED IN MULTIPLE LIGHTS ON CLUSTER. THEY FOUND THE ENGINE BELT FELL OFF & REPLACED THE V-BELT. THEY PERFORMED LI13.22-P-060187, AND RELEASED STRESS OF ALTERNATOR AND CORRECTED TORQUE. THEY ALSO WORKED ON A CAMPAIGN/RECALL (#2018070005) I HAD NOT BEEN INFORMED… Look up ODI 11203356 at NHTSA ↗ ODI 11402743 · 36,000 mi WHEN THE CAR IS IN THE A FEATURE, WHERE IT TURNS ON AND OFF WHEN NOT IN MOTION, IT GETS STUCK IN THAT MODE AS IF A MAGNET IS HOLDING IT IN THAT POSITION. IT WILL NOT MOVE, IT STALLS. I TURN IT OFF AND TURN IT BACK ON AND SOMETIMES IT STILL WILL NOT MOVE, SOMETIMES, IT WILL NOT TURN BACK ON. THIS HAS HAPPENED ON SEVERAL DIFFERENT OCCASIONS. ONCE, I PULLED TO THE SIDE OF MY MAILBOX TO PICK UP MAIL, AND ANOTHER OCCASION I PULLED INTO MY GARAGE, AND IT STOPPED, AND WOULD NOT TURN ON. THIS IS VERY DANGEROUS, I WOULD HATE TO BE IN TRAFFIC, RAILWAY CR… Look up ODI 11402743 at NHTSA ↗ ODI 11764481 The vehicle experienced a severe safety issue involving a sudden loss of motive power in active traffic. 1. Initial Symptoms & Diagnosis: Recently, the Check Engine Light illuminated. Although the light turned off before my scheduled appointment, I still brought the vehicle to an authorized Mercedes-Benz dealership for a safety inspection. 2. Dealer Confirmation: The dealership inspected the vehicle and diagnosed an internal electrical fault with the engine oil control valve and harness. They recommended replacing the parts. Because the vehic… Look up ODI 11764481 at NHTSA ↗
Fuel/Propulsion System	21 ODI 11453550 When starting the car in the morning there is fuel smell that gets into the cabin. Additionally, as the car is idle during the drive, the smell of fuel is very obvious. Windows have to be rolled down to avoid the smell Look up ODI 11453550 at NHTSA ↗ ODI 11461236 At approximately 26,500 miles of use, the check engine light came on in my Mercedes Benz C300. I brought the vehicle to the dealership and they informed me that the diagnosis was a crankcase vent valve malfunction. The MB fault code is P52E71. After paying Mercedes to fix the issue, I found forums on the internet where many other MB owners reported the same issue at around the same mileage. Being that this seems to be a common malfunction with the C300, I believe that it should be considered as a recall issue. I don't know what could have h… Look up ODI 11461236 at NHTSA ↗ ODI 11471458 Diagnosis code P052E PCV regulator valve replacement/crankcase replacement. Dealership does not want to acknowledge code while car was under warranty despite proof that it existed when check engine was diagnosed. Now code keeps coming back with check engine light on dashboard. To replace part, the engine has to be taken down since the crankcase is inside the engine. This is a malfunction during assembly/manufacturing, it is impossible to damage part while under usage. Mercedes Benz should be held responsible for part replacement and labor. I ur… Look up ODI 11471458 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 ↗	2 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 ↗ 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 ↗	—	0	1 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 ↗	0	5 ODI 11461236 At approximately 26,500 miles of use, the check engine light came on in my Mercedes Benz C300. I brought the vehicle to the dealership and they informed me that the diagnosis was a crankcase vent valve malfunction. The MB fault code is P52E71. After paying Mercedes to fix the issue, I found forums on the internet where many other MB owners reported the same issue at around the same mileage. Being that this seems to be a common malfunction with the C300, I believe that it should be considered as a recall issue. I don't know what could have h… Look up ODI 11461236 at NHTSA ↗ ODI 11500998 I purchased my 2017 C300 class Mercedes-Benz ("MB") in May 2021 from a used car dealership in Mobile, AL. At that time it had 36,000 miles. Less than 2 years later, on or about 12/15/22, as I was driving, the MB suddenly and without warning began to vibrate violently and immediately lost power. The car had @54,000 miles on it. I routinely drive interstate to and from work and had just gotten off of the interstate. I was lucky that I was driving at a low speed when this happened; otherwise, a serious accident could have resulted. I took it t… Look up ODI 11500998 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 ↗
Structure:Body	1 ODI 11696497 I am reporting a serious vehicle safety hazard caused by improper and unsafe repair work performed by USA Platinum Motor, located at 1221 California Lane #126B, Arlington, TX. I brought my 2017 Mercedes-Benz C300 in for a cold start rattle with no warning lights or prior issues. The shop diagnosed a loose timing chain and I authorized the repair. After the repairs, the vehicle was returned with critical safety defects, including a loose fuel pump, unsecured fuel line, missing bolts, and improperly reassembled engine components. Shortly after p… Look up ODI 11696497 at NHTSA ↗	5 ODI 11404183 · 43,000 mi FRONT PANEL GLASS OF PANORAMIC SUNROOF FLEW OFF THE CAR AS I WAS DRIVING ON THE HIGHWAY. Look up ODI 11404183 at NHTSA ↗ ODI 11680437 The sunroof exploded spontaneously while driving to a destination. When the incident happened, I was stopped at a red light. I panicked as it sounded like gunshots hitting my car. I pulled over to the nearest safest destination to inspect the car. This put the safety of myself at risk and others at risk who were driving along the sides and/or behind me. This incident was confirmed by a dealer, as I went to Mercedes Benz Sugar Land on the following day of the incident and was quoted around $3,700 to have it repaired. The vehicle not been inspect… Look up ODI 11680437 at NHTSA ↗ 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 ↗	4 ODI 11621666 When i scan my vehicle there are Mercedes Benz fault codes pertaining to the electrical system but also recalls that haven’t been done but when looking Mercedes Benz web site and NHTSA WEBSITE these are aren’t showing up as my particular chassis being included as part of the campaign Look up ODI 11621666 at NHTSA ↗ ODI 11696497 I am reporting a serious vehicle safety hazard caused by improper and unsafe repair work performed by USA Platinum Motor, located at 1221 California Lane #126B, Arlington, TX. I brought my 2017 Mercedes-Benz C300 in for a cold start rattle with no warning lights or prior issues. The shop diagnosed a loose timing chain and I authorized the repair. After the repairs, the vehicle was returned with critical safety defects, including a loose fuel pump, unsecured fuel line, missing bolts, and improperly reassembled engine components. Shortly after p… Look up ODI 11696497 at NHTSA ↗ 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	1 ODI 11112163 · 17,000 mi I HIT A BEAR IN MONTANA IN MY 2017 MERCEDES C300 AT 86MPH AND DESTROYED THE FRONT OF MY CAR. THE SEATBELTS DEPLOYED AND WRENCHED US INTO OUR SEATS AND SMOKE CAME OUT OF THE FRONT AIR VENTS BUT THE AIRBAGS DID NOT GO OFF. ON THE DASH THE VEHICLES STATED THAT THE AIRBAGS IN ALL 4 ZONES IN THE CAR MALFUNCTIONED AND SERVICE IS REQUIRED. MERCEDES IS STATING THAT THE LIGHT IS FROM A SEATBELT ERROR CODE BUT THE DASH DID NOT SAY ANYTHING ABOUT SRS OR SEATBELTS. I DO NOT WANT TO PUT MY FAMILY BACK IN THE CAR AND DO NOT FEEL IT SHOULD BE REPAIRED. PLEASE… Look up ODI 11112163 at NHTSA ↗	0
Steering	0	3 ODI 11415611 · 44,771 mi SO I JUST GOT MY MERCEDES BENZ C300 4MATIC I ONLY HAVE 44,711 MILES ON IT AND I BARELY DRIVE IT, SO TODAY I WAS DRIVING AND THE WHOLE DAY THINGS WERE GREAT AND I STOPPED AT A STORE GOT BACK IN AND IT SAYS 'POWER STEERING MALFUNCTION' I WAS ON A STREET IN THE CITY, I'M ON CONFUSED ON HOW THIS IS HAPPENING TO A CAR I JUST GOT FROM THE DEALERSHIP THAT IS PRACTICALLY NEW, NOW LET ME MENTION THAT THIS IS A ON AND OFF ISSUE THROUGH OUT THIS WHOLE DAY IT HAS CAME ON AND OFF TWICE Look up ODI 11415611 at NHTSA ↗ ODI 11438296 I was driving on a straight away doing the speed limit which is reported seconds before the car crash. The steering wheel turned to the left really hard out of no where and wouldn’t let me gain control over the car again. I was sober it was 9am and I was aware of my driving. I ended up spinning out and landed in the ditch feet away from the light pole. I made it know to everyone what happened, but they looked at me crazy. I stopped driving that car and sent it back to Mercedes to get a detailed inspection. Which lasted about 30 days for them to… Look up ODI 11438296 at NHTSA ↗ 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 ↗	3 ODI 11203356 ON 7/30/18 I WAS STRANDED IN THE MIDDLE OF THE STREET AFTER THE COOLANT MALFUNCTION LIGHT CAME ON. THE CAR BEGAN OVERHEATING, AND THERE WAS NO AC. I WAITED FOR ROADSIDE ASSISTANCE MORE THAN 3 HOURS. I WAS INFORMED OF THE INCORRECT POSITIONING OF THE ALTERNATOR FROM MANUFACTURING, WHICH RESULTED IN MULTIPLE LIGHTS ON CLUSTER. THEY FOUND THE ENGINE BELT FELL OFF & REPLACED THE V-BELT. THEY PERFORMED LI13.22-P-060187, AND RELEASED STRESS OF ALTERNATOR AND CORRECTED TORQUE. THEY ALSO WORKED ON A CAMPAIGN/RECALL (#2018070005) I HAD NOT BEEN INFORMED… Look up ODI 11203356 at NHTSA ↗ ODI 11415611 · 44,771 mi SO I JUST GOT MY MERCEDES BENZ C300 4MATIC I ONLY HAVE 44,711 MILES ON IT AND I BARELY DRIVE IT, SO TODAY I WAS DRIVING AND THE WHOLE DAY THINGS WERE GREAT AND I STOPPED AT A STORE GOT BACK IN AND IT SAYS 'POWER STEERING MALFUNCTION' I WAS ON A STREET IN THE CITY, I'M ON CONFUSED ON HOW THIS IS HAPPENING TO A CAR I JUST GOT FROM THE DEALERSHIP THAT IS PRACTICALLY NEW, NOW LET ME MENTION THAT THIS IS A ON AND OFF ISSUE THROUGH OUT THIS WHOLE DAY IT HAS CAME ON AND OFF TWICE Look up ODI 11415611 at NHTSA ↗ ODI 11490679 When I started my car, the dash did not reveal park, drive, or reverse. It illuminated with a warning light indicating an Electronic Stability Problem (ESP). Research revealed this to be an important safety feature and that the Mercedes-warning-lights-electric-stability-control may have problems with traction control requiring attention. The ESP light was NOT flashing for the system to intervene – as the car was parked in my garage. It did not light up with the word ‘OFF’ to assess whether it may have been inadvertently deactivated. The light … Look up ODI 11490679 at NHTSA ↗	1 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 ↗	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 ↗	1 ODI 11203356 ON 7/30/18 I WAS STRANDED IN THE MIDDLE OF THE STREET AFTER THE COOLANT MALFUNCTION LIGHT CAME ON. THE CAR BEGAN OVERHEATING, AND THERE WAS NO AC. I WAITED FOR ROADSIDE ASSISTANCE MORE THAN 3 HOURS. I WAS INFORMED OF THE INCORRECT POSITIONING OF THE ALTERNATOR FROM MANUFACTURING, WHICH RESULTED IN MULTIPLE LIGHTS ON CLUSTER. THEY FOUND THE ENGINE BELT FELL OFF & REPLACED THE V-BELT. THEY PERFORMED LI13.22-P-060187, AND RELEASED STRESS OF ALTERNATOR AND CORRECTED TORQUE. THEY ALSO WORKED ON A CAMPAIGN/RECALL (#2018070005) I HAD NOT BEEN INFORMED… Look up ODI 11203356 at NHTSA ↗
Air Bags	0	3 ODI 11041430 · 95 mi WHILE DRIVING THE CARE, I NOTICED THE SEAT BELT LIGHT REMAINED ON DESPITE BEING BUCKLED AND THE PASSENGER AIR WAS NOT SET DESPITE MY WIFE SITTING IN THE SEAT. I FOUND THIS ODD, CONTACTED THE DEALERSHIP FOR SERVICE AND RESEARCHED IF THE CAR HAD A RECALL...THIS CAR DID HAVE A RECALL AND WAS SOLD WHILE IN ACTIVE RECALL STATUS. FEDERAL LAW EXPLICITLY PROHIBITS DEALERSHIPS FROM SELLING A NEW CAR IF A PENDING RECALL HASN'T BEEN PERFORMED. AS, A RESULT, I NO LONGER WANT THIS CAR BECAUSE THE CAR SHOULD NOT HAVE BEEN SOLD UNTIL THE RECALL WAS PREPARED. … Look up ODI 11041430 at NHTSA ↗ ODI 11090429 SINCE I BOUGHT IN FEBRUARY 2017 BRAND NEW 2017 MERCEDES BENZ C300 CONVERTIBLE IN ONE YEAR OF OWNERSHIP I HAD TO BRING MY CAR SEVERAL TIMES FOR SERVICES LIKE, THE CONVERTIBLE TOP WOULD NOT WORK, THE MIRRORS WOULD NOT FOLD, THE STEERING WHEEL WOULD NOT ADJUST, ELECTRONICAL ISSUES LIKE CONNECTING MY CELL PHONE TO THE CAR. ( I HAD THE TOP GOT REPLACED ONLY AFTER COUPLE OF MONTHS AFTER I PURCHASED THE CAR.) TODAY APRIL 27 2018 I COULD NOT START THE CAR IN THE MORNING TO GO TO WORK, THE DISPLAY WAS SHOWING THE KEY IS NOT DETECTED( HAD TO EXIT THE C… Look up ODI 11090429 at NHTSA ↗ ODI 11676702 In October 2024, the rear subframe was replaced due to rust perforation in the area of the suspension arm mounting bracket. I had no warning. The car was in for routine service at Mercedes Benz of New London. It had rusted from the inside out and was considered unsafe to drive by the Mercedes service advisor. I could have had a serious accident! I had no choice but to replace the subframe as it is my only vehicle. Shockingly I learned many others have had this issue with various Mercedes models/years and that Mercedes Benz knows of this se… Look up ODI 11676702 at NHTSA ↗	5 ODI 11053814 TAKATA RECALL SEATBELT ISSUES WARRANTY ITEMS /ELECTRICAL NO RESPONSE FROM DEALER AFTER REPEATED EMAILS Look up ODI 11053814 at NHTSA ↗ ODI 11078686 TL* TAKATA RECALL. THE CONTACT OWNS A 2017 MERCEDES-BENZ C300. THE CONTACT STATED THAT THERE WERE THREE RECALLS ON THE VEHICLE REGARDING THE AIR BAGS AND ELECTRICAL SYSTEM. THE VEHICLE WAS REMEDIED FOR AN AIR BAG RECALL; HOWEVER, THE PARTS HAD NOT BEEN AVAILABLE WITHIN A REASONABLE TIME FRAME. THE DEALER (MERCEDES-BENZ OF WEST HOUSTON, 1025 HWY 6, HOUSTON, TX 77079, [phone removed]) WAS UNABLE TO DETERMINE WHEN THE PARTS WOULD BE SUPPLIED FOR THE OTHER TWO RECALLS. THE MANUFACTURER WAS CONTACTED. THE NHTSA CAMPAIGN INFORMATION. THE CONTACT HAD … Look up ODI 11078686 at NHTSA ↗ ODI 11090429 SINCE I BOUGHT IN FEBRUARY 2017 BRAND NEW 2017 MERCEDES BENZ C300 CONVERTIBLE IN ONE YEAR OF OWNERSHIP I HAD TO BRING MY CAR SEVERAL TIMES FOR SERVICES LIKE, THE CONVERTIBLE TOP WOULD NOT WORK, THE MIRRORS WOULD NOT FOLD, THE STEERING WHEEL WOULD NOT ADJUST, ELECTRONICAL ISSUES LIKE CONNECTING MY CELL PHONE TO THE CAR. ( I HAD THE TOP GOT REPLACED ONLY AFTER COUPLE OF MONTHS AFTER I PURCHASED THE CAR.) TODAY APRIL 27 2018 I COULD NOT START THE CAR IN THE MORNING TO GO TO WORK, THE DISPLAY WAS SHOWING THE KEY IS NOT DETECTED( HAD TO EXIT THE C… Look up ODI 11090429 at NHTSA ↗	0	1 ODI 11112163 · 17,000 mi I HIT A BEAR IN MONTANA IN MY 2017 MERCEDES C300 AT 86MPH AND DESTROYED THE FRONT OF MY CAR. THE SEATBELTS DEPLOYED AND WRENCHED US INTO OUR SEATS AND SMOKE CAME OUT OF THE FRONT AIR VENTS BUT THE AIRBAGS DID NOT GO OFF. ON THE DASH THE VEHICLES STATED THAT THE AIRBAGS IN ALL 4 ZONES IN THE CAR MALFUNCTIONED AND SERVICE IS REQUIRED. MERCEDES IS STATING THAT THE LIGHT IS FROM A SEATBELT ERROR CODE BUT THE DASH DID NOT SAY ANYTHING ABOUT SRS OR SEATBELTS. I DO NOT WANT TO PUT MY FAMILY BACK IN THE CAR AND DO NOT FEEL IT SHOULD BE REPAIRED. PLEASE… Look up ODI 11112163 at NHTSA ↗	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 ↗	—	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 ↗
Power Train	15 ODI 11402743 · 36,000 mi WHEN THE CAR IS IN THE A FEATURE, WHERE IT TURNS ON AND OFF WHEN NOT IN MOTION, IT GETS STUCK IN THAT MODE AS IF A MAGNET IS HOLDING IT IN THAT POSITION. IT WILL NOT MOVE, IT STALLS. I TURN IT OFF AND TURN IT BACK ON AND SOMETIMES IT STILL WILL NOT MOVE, SOMETIMES, IT WILL NOT TURN BACK ON. THIS HAS HAPPENED ON SEVERAL DIFFERENT OCCASIONS. ONCE, I PULLED TO THE SIDE OF MY MAILBOX TO PICK UP MAIL, AND ANOTHER OCCASION I PULLED INTO MY GARAGE, AND IT STOPPED, AND WOULD NOT TURN ON. THIS IS VERY DANGEROUS, I WOULD HATE TO BE IN TRAFFIC, RAILWAY CR… Look up ODI 11402743 at NHTSA ↗ ODI 11461236 At approximately 26,500 miles of use, the check engine light came on in my Mercedes Benz C300. I brought the vehicle to the dealership and they informed me that the diagnosis was a crankcase vent valve malfunction. The MB fault code is P52E71. After paying Mercedes to fix the issue, I found forums on the internet where many other MB owners reported the same issue at around the same mileage. Being that this seems to be a common malfunction with the C300, I believe that it should be considered as a recall issue. I don't know what could have h… Look up ODI 11461236 at NHTSA ↗ ODI 11482136 My car leaked oil very fast while me & my wife were on a trip and it stopped on the highway and engine was stalling and misfiring due to a manufacture defect that is common with this model so it did put us in a very dangerous & risky situation. Now after i paid $1,740 the dealer is saying that my car needs a new engine due to cracked piston in cylinder 1 that damaged the engine which is a common problem with this model around the 50k miles. Look up ODI 11482136 at NHTSA ↗	0	4 ODI 11203356 ON 7/30/18 I WAS STRANDED IN THE MIDDLE OF THE STREET AFTER THE COOLANT MALFUNCTION LIGHT CAME ON. THE CAR BEGAN OVERHEATING, AND THERE WAS NO AC. I WAITED FOR ROADSIDE ASSISTANCE MORE THAN 3 HOURS. I WAS INFORMED OF THE INCORRECT POSITIONING OF THE ALTERNATOR FROM MANUFACTURING, WHICH RESULTED IN MULTIPLE LIGHTS ON CLUSTER. THEY FOUND THE ENGINE BELT FELL OFF & REPLACED THE V-BELT. THEY PERFORMED LI13.22-P-060187, AND RELEASED STRESS OF ALTERNATOR AND CORRECTED TORQUE. THEY ALSO WORKED ON A CAMPAIGN/RECALL (#2018070005) I HAD NOT BEEN INFORMED… Look up ODI 11203356 at NHTSA ↗ ODI 11402743 · 36,000 mi WHEN THE CAR IS IN THE A FEATURE, WHERE IT TURNS ON AND OFF WHEN NOT IN MOTION, IT GETS STUCK IN THAT MODE AS IF A MAGNET IS HOLDING IT IN THAT POSITION. IT WILL NOT MOVE, IT STALLS. I TURN IT OFF AND TURN IT BACK ON AND SOMETIMES IT STILL WILL NOT MOVE, SOMETIMES, IT WILL NOT TURN BACK ON. THIS HAS HAPPENED ON SEVERAL DIFFERENT OCCASIONS. ONCE, I PULLED TO THE SIDE OF MY MAILBOX TO PICK UP MAIL, AND ANOTHER OCCASION I PULLED INTO MY GARAGE, AND IT STOPPED, AND WOULD NOT TURN ON. THIS IS VERY DANGEROUS, I WOULD HATE TO BE IN TRAFFIC, RAILWAY CR… Look up ODI 11402743 at NHTSA ↗ ODI 11764481 The vehicle experienced a severe safety issue involving a sudden loss of motive power in active traffic. 1. Initial Symptoms & Diagnosis: Recently, the Check Engine Light illuminated. Although the light turned off before my scheduled appointment, I still brought the vehicle to an authorized Mercedes-Benz dealership for a safety inspection. 2. Dealer Confirmation: The dealership inspected the vehicle and diagnosed an internal electrical fault with the engine oil control valve and harness. They recommended replacing the parts. Because the vehic… Look up ODI 11764481 at NHTSA ↗	5 ODI 11461236 At approximately 26,500 miles of use, the check engine light came on in my Mercedes Benz C300. I brought the vehicle to the dealership and they informed me that the diagnosis was a crankcase vent valve malfunction. The MB fault code is P52E71. After paying Mercedes to fix the issue, I found forums on the internet where many other MB owners reported the same issue at around the same mileage. Being that this seems to be a common malfunction with the C300, I believe that it should be considered as a recall issue. I don't know what could have h… Look up ODI 11461236 at NHTSA ↗ ODI 11500998 I purchased my 2017 C300 class Mercedes-Benz ("MB") in May 2021 from a used car dealership in Mobile, AL. At that time it had 36,000 miles. Less than 2 years later, on or about 12/15/22, as I was driving, the MB suddenly and without warning began to vibrate violently and immediately lost power. The car had @54,000 miles on it. I routinely drive interstate to and from work and had just gotten off of the interstate. I was lucky that I was driving at a low speed when this happened; otherwise, a serious accident could have resulted. I took it t… Look up ODI 11500998 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 ↗	0	1 ODI 11203356 ON 7/30/18 I WAS STRANDED IN THE MIDDLE OF THE STREET AFTER THE COOLANT MALFUNCTION LIGHT CAME ON. THE CAR BEGAN OVERHEATING, AND THERE WAS NO AC. I WAITED FOR ROADSIDE ASSISTANCE MORE THAN 3 HOURS. I WAS INFORMED OF THE INCORRECT POSITIONING OF THE ALTERNATOR FROM MANUFACTURING, WHICH RESULTED IN MULTIPLE LIGHTS ON CLUSTER. THEY FOUND THE ENGINE BELT FELL OFF & REPLACED THE V-BELT. THEY PERFORMED LI13.22-P-060187, AND RELEASED STRESS OF ALTERNATOR AND CORRECTED TORQUE. THEY ALSO WORKED ON A CAMPAIGN/RECALL (#2018070005) I HAD NOT BEEN INFORMED… Look up ODI 11203356 at NHTSA ↗	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 ↗	—

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

Recurring narrative patterns

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

Search patterns

8 patterns with matching reports.

Warning lights and dashboard alerts

104 mentions · 21.0% of complaints

Median mileage: 30,825 mi (38 usable records).

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…

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ODI 11426152

For the past several weeks the seat belt warning light goes on and the chime sounds intermittently while I am driving with the driver seat belt engaged. Also; while this is happening, the seat belt pretensioner repeatedly deactivates and activates. The vehicle is available for inspection at my home in Pleasant View, Utah. Can my safety be compromised if the pretensioner is not activated? Will the driver air bag function if it thinks the seat is empty? The Mercedes Dealer was no help; all the Customer Service person could tell me was there w…

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ODI 11438495 · 2,500 mi

The contact owns a 2017 Mercedes-Benz C300. The contact stated upon taking the front driver seat belt off she noticed, it was not fully retracting. There were no warning lights illuminated. The contact also stated that the front passenger’s side seat belt was not fully retracting. The contact stated she received notification of NHTSA Campaign Number: 21V032000 (Seat Belts). The vehicle was taken to the dealer for recall repair; however, the dealer informed the contact that the seat belts did not qualify for the recall repair because the seat be…

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Matching rule

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

Stalling or loss of power

26 mentions · 5.3% of complaints

Median mileage: 29,650 mi (7 usable records).

ODI 11282140 · 20,000 mi

Look up ODI 11282140 at NHTSA ↗

ODI 11402743 · 36,000 mi

Look up ODI 11402743 at NHTSA ↗

ODI 11482136

My car leaked oil very fast while me & my wife were on a trip and it stopped on the highway and engine was stalling and misfiring due to a manufacture defect that is common with this model so it did put us in a very dangerous & risky situation. Now after i paid $1,740 the dealer is saying that my car needs a new engine due to cracked piston in cylinder 1 that damaged the engine which is a common problem with this model around the 50k miles.

Look up ODI 11482136 at NHTSA ↗

Matching rule

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

Fuel smell or leak mentions

16 mentions · 3.2% of complaints

Median mileage: 33,928 mi (2 usable records).

ODI 11298512 · 15,555 mi

EXHAUST WAS COMING INTO THE CAR FOR MONTH. WHEN I STARTED THE CAR TO LET IT WARM UP IN WINTER MONTHS, I WOULD GET IN AND WONDER WHY I SMELLED GAS OR FUMES. FIGURED IT WAS FROM SITTING. NO DASHBOARD LIGHTS CAME ON, NO C02 SENSORS IF THERE ARE ANY, NOTHING CAME ON IN THE INTERIOR TO WARN ME THERE WAS AN INSANE. ONE PERSON TOLD ME THE PART WAS 'DEFECTIVE' ANOTHER PERSON TOLD MY BOYFRIEND THE PART WAS 'SPLIT MOST LIKELY FROM ROAD CONDITIONS' - THIS PUT MY LIFE AND MY 10 YEAR OLD'S LIFE AT RISK. IT REALLY NEEDS TO BE CHECKED OUT BECAUSE THE C300 COU…

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ODI 11395633

Look up ODI 11395633 at NHTSA ↗

ODI 11430028

MB USA extended the warranty coverage on the low pressure fuel hoses that connects to the high pressure fuel pump. The reason is "under certain cold ambient conditions during a cold start of the engine, the low pressure fuel hose at that connection may experience slight fuel weeping". MB USA, however, ruled out a safety risk. NHTSA needs to investigate it. If MB USA found the fuel pressure line is defective, they needed to do a recall. I believe it must be a recall as fuel leaks is not only a safety risk but also a serious health hazard to the …

Look up ODI 11430028 at NHTSA ↗

Matching rule

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

Steering assistance concerns

12 mentions · 2.4% of complaints

Median mileage: 17,095 mi (6 usable records).

ODI 11140698 · 9,190 mi

PROBLEM "POWER STEERING MALFUNCTION" . FRIST TIME OF THIS HAPPENED WAS FROM MAY 17, 2018,THE STEERING WHEEL CANNOT MOVE WHEN THE VEHICLE WAS START UP. SECOND TIME IS TODAY,OCT 16,2018. WHEN I START UP THE CAT, "POWER STEERING MALFUNCTION" COME UP ON SCREEN. THINK IF STEERING CANNOT TURNING WHILE DRIVING ON HIGHWAY, WHAT WILL HAPPEN! ONE OF MY FRIEND BOSS HAD SAME PROBLEM WHILE HE IS TURNING ON THE ROAD AND HIT THE WALL!

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ODI 11176106 · 3,000 mi

POWER STEERING FAILED WHILE DRIVING NEARLY CAUSING A MULTI CAR ACCIDENT.

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ODI 11415611 · 44,771 mi

SO I JUST GOT MY MERCEDES BENZ C300 4MATIC I ONLY HAVE 44,711 MILES ON IT AND I BARELY DRIVE IT, SO TODAY I WAS DRIVING AND THE WHOLE DAY THINGS WERE GREAT AND I STOPPED AT A STORE GOT BACK IN AND IT SAYS 'POWER STEERING MALFUNCTION' I WAS ON A STREET IN THE CITY, I'M ON CONFUSED ON HOW THIS IS HAPPENING TO A CAR I JUST GOT FROM THE DEALERSHIP THAT IS PRACTICALLY NEW, NOW LET ME MENTION THAT THIS IS A ON AND OFF ISSUE THROUGH OUT THIS WHOLE DAY IT HAS CAME ON AND OFF TWICE

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Matching rule

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

Brake response concerns

8 mentions · 1.6% of complaints

Median mileage: 51,500 mi (2 usable records).

ODI 11102627 · 75,000 mi

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.

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ODI 11574602

On the afternoon of February 6, 2024, as I was turning into my driveway to park in front of the garage, my car unexpectedly accelerated despite my foot being on the brake pedal. Despite my attempts to brake, the pedal didn't respond, causing the car to collide with the garage door and subsequently damage storage shelves and containers inside. My mother and two brothers were passengers, returning from my mother's doctor appointment, and she became trapped inside due to the garage door collapsing onto the car. Emergency services were called, and …

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ODI 11468137

When I brake the car makes a clunking noise and I can feel a thumping on the brake pedal as I try and bring the car to a stop. This car is brand new. I have owned it for almost 3 weeks and it has less than 100 miles on it. You can both hear and feel the the clunk/thump as you attempt to brake the car. It seems as if it is coming from the drivers side of the car. I actually heard and felt this issue on May 23, 2022 3 days after I took delivery of the car. But I wasnt sure exactly what I felt. I haven’t Devine the car a lot until yesterday …

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Matching rule

Hard or delayed shifting

6 mentions · 1.2% of complaints

Median mileage: 48,000 mi (2 usable records).

ODI 11337524 · 48,000 mi

PISTON 1 CRACKED AT 48,000 MILES. MB TOLD OWNER THAT THE ENGINE HAD TO BE REPLACED BUT WHEN FINDING OUT THAT THE WARRANTY WAS UP AT 50,000 THEY REPLACED THE PISTON INSTEAD. CAR IS STILL SHAKING AT IDLE AND ROUGH RIDE. ENGINE SHAKES AND JERKS.

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ODI 11342812 · 48,000 mi

2017 MERCEDES C300 COUPE 49,000 MILES. THIS CAR HAS BEEN TO THE SERVICE CENTER 10 TIMES FOR ENGINE PROBLEMS " VIBRATIING, JERKING, SHAKING AND TICKING" LAST VISIT AT HOEHN MERCEDES,. SERVICE TECH SAID THAT THESE ENGINES AUTOMATICALLY VIBRATE AND JERK AND THAT IS JUST THE NATURE OF THE BEAST?? WTHECK???!! HAVE ALREADY HAD PISTON 1 CRACK AND BREAK, MECHANIC NEVER FOUND THE BROKEN PIECE. CAR IS MUCH WORSE SINCE THAT REPAIR. HOEHNN MB TOLD ME THAT THEY WERE REPLACING THE ENGIBE BUT WHWN I PICKED UP THE VAN THEY SAID THEY DECIDED JUST TO REPLACE PIS…

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ODI 11738906

Upon starting engine while parked the engine vibrated roughly then stopped. Engine light and coolant light illuminated but shut off. Vehicle proceeded as normal, however, as I proceeded for the highway about 1 - 1/2 blocks and approximately 1,200 feet before approaching highway the vehicle 1200 abruptly lost acceleration; engine light and coolant light illuminated again, then engine abruptly shut down in the middle of the road causing a severe safety hazard. Putting myself and others at risk. There were no symptoms of the problems prior to the …

Look up ODI 11738906 at NHTSA ↗

Matching rule

Battery drain and no-start mentions

2 mentions · 0.4% of complaints

Median mileage: Unavailable (0 usable records).

ODI 11420137

Vehicle won’t start or hard to start

Look up ODI 11420137 at NHTSA ↗

ODI 11592228

The electronic system, specifically the battery, failed and it is available for inspection upon request. The persistent battery drain caused the vehicle to become inoperable multiple times, including an incident where I was stranded 200 miles from home with my wife and dog, posing significant safety risks. Yes, the defect has been confirmed by the dealership’s service center multiple times. The vehicle has been inspected by the dealership’s service technicians. Yes, the first malfunction message appeared on [XXX] at 2:22 PM, a week after purch…

Look up ODI 11592228 at NHTSA ↗

Matching rule

Oil consumption or dilution

1 mentions · 0.2% 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