2008 Mercedes-Benz C350 Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2008 Mercedes-Benz C350, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Electrical5428.4%
- Airbags5227.4%
- Steering3216.8%
- Exterior lighting3116.3%
- Engine73.7%
- Visibility31.6%
- Fuel system21.1%
- Powertrain (other)21.1%
- Body & structure21.1%
- Seat belts10.5%
- Driver assistance10.5%
- Suspension10.5%
- Other / unspecified10.5%
- Tires & wheels10.5%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
The ESL system malfunction causes either steering lock or ignition switch to fail resulting in a failure to start the vehicle creating safety issues and a failure to reach safe destination. This problem is reported to be an extremely common issue in the Mercedes Benz W204 C-Class models.
All of a sudden, the car would not start and inserting the key and turning doesn't do anything. Turns out that like many other folks, the Electronic Steering Lock module is faulty and preventing the car from starting. Found out that only the dealer can fix it and mercedes provides the replacement part. The cost is unaffordable at $2200 from the dealer and the part is back ordered and won't be available for approximately 2 months. This is completely unacceptable and mercedes should prioritize and fix this issue as a safety issue with a recall since it completely makes the car non-driveable and nobody but the dealer can fix this, which allows the dealer to charge any amount they like.
Airbags
Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.
From owner reports, verbatim
NHTSA RECALL NUMBER: 16V081, 17V017, AIRBAG WARNING LIGHT COMES ON, MULTIPLE REQUEST TO CORRECT OPEN RECALL. DEALER STATES PARTS ARE NOT AVAILABLE
TL* TAKATA RECALL. THE CONTACT OWNS A 2008 MERCEDES-BENZ C350. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBERS: 16V081000 (AIR BAGS) AND 16V363000 (AIR BAGS). FLETCHER JONES MOTORCARS OF FREMONT (LOCATED AT 5760 CUSHING PKWY, FREMONT, CA 94538, (510) 623-1111) WAS CONTACTED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE. THE MANUFACTURER WAS NOT CONTACTED. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT.
Steering
Reports naming the steering system — racks, columns, power-steering assist and steering linkage.
From owner reports, verbatim
The ESL system malfunction causes either steering lock or ignition switch to fail resulting in a failure to start the vehicle creating safety issues and a failure to reach safe destination. This problem is reported to be an extremely common issue in the Mercedes Benz W204 C-Class models.
All of a sudden, the car would not start and inserting the key and turning doesn't do anything. Turns out that like many other folks, the Electronic Steering Lock module is faulty and preventing the car from starting. Found out that only the dealer can fix it and mercedes provides the replacement part. The cost is unaffordable at $2200 from the dealer and the part is back ordered and won't be available for approximately 2 months. This is completely unacceptable and mercedes should prioritize and fix this issue as a safety issue with a recall since it completely makes the car non-driveable and nobody but the dealer can fix this, which allows the dealer to charge any amount they like.
Exterior lighting
Reports naming headlights, tail lights, turn signals and other exterior lighting.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2008 MERCEDES BENZ C350. THE CONTACT STATED THAT WHILE OPERATING THE VEHICLE, SEVERAL ELECTRICAL FAILURES HAD OCCURRED AND ON SEVERAL OCCASIONS AND THE VEHICLE WOULD NOT START. THE CONTACT REPLACED THE FUEL PUMP HOWEVER, THE FAILURE CONTINUED. IT WAS LATER DISCOVERED THE CAUSE OF THE FAILURE WAS DUE TO A FAULTY FUSE. NO FURTHER INFORMATION WAS AVAILABLE. ADDITIONALLY, THE PASSENGER'S SIDE HEADLIGHT AND WINDSHIELD WIPERS HAD STOPPED WORKING AND THE SRS WARNING LIGHT WAS ILLUMINATED. THE CAUSE OF THE FAILURES WERE NOT DETERMINED. THE LOCAL DEALER PLAZA MERCEDES BENZ LOCATED AT 11910 OLIVE BLVD, CREVE COEUR, MO 63141 AND THE MANUFACTURER WERE NOTIFIED OF THE FAILURES. THE FAILURE MILEAGE WAS 150,000.
TL* THE CONTACT OWNS A 2008 MERCEDES-BENZ C350. THE CONTACT STATED THAT THE PARKING LAMPS FAILED TO ILLUMINATE WITHOUT WARNING. THE VEHICLE WAS TAKEN TO BAKER MOTOR COMPANY (1513 SAVANNAH HWY, CHARLESTON, SC) WHERE IT WAS DIAGNOSED THAT THE LAMPS OVERHEATED AND NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 100,000. ** UPDATED 11/1/18*JB
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
The contact owns a 2008 Mercedes-Benz C350. The contact stated that after the vehicle was turned off, she attempted to restart the vehicle, but the engine failed to turn over. The contact stated that the next day the vehicle started; however, while driving at an undisclosed speed, the vehicle stalled. The contact stated that several unknown warning lights illuminated, and the speedometer started to malfunction. The vehicle was towed to the dealer; however, the contact was unsure if the vehicle was diagnosed. Additionally, the contact stated that on a separate occasion while driving at an undisclosed speed, she noticed that water had started to leak from the sun visor. The contact also heard water moving around on the floorboard. The vehicle was not diagnosed. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 166,000.
STATIONARY VEHICLE NO START, NO CRANK WITHOUT WARNING WHILE PARKED ON A CITY STREET. FAILURE WITHIN THE ELECTRONIC STEERING LOCK. VEHICLE WILL NOT RECOGNIZE THE DRIVERS KEY. DRIVER AND PASSENGERS LEFT DANGEROUSLY STRANDED WHERE EVER THE VEHICLE IS PARKED WHEN THE FAILURE OCCURS. THIS FAILURE MAKES IT UNABLE TO SHIFT THE VEHICLE INTO NEUTRAL POSITION FOR TOWING.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Visibility
Reports naming windshields, glass, wipers, defrosters and mirrors.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2008 MERCEDES BENZ C350. THE CONTACT STATED THAT WHILE OPERATING THE VEHICLE, SEVERAL ELECTRICAL FAILURES HAD OCCURRED AND ON SEVERAL OCCASIONS AND THE VEHICLE WOULD NOT START. THE CONTACT REPLACED THE FUEL PUMP HOWEVER, THE FAILURE CONTINUED. IT WAS LATER DISCOVERED THE CAUSE OF THE FAILURE WAS DUE TO A FAULTY FUSE. NO FURTHER INFORMATION WAS AVAILABLE. ADDITIONALLY, THE PASSENGER'S SIDE HEADLIGHT AND WINDSHIELD WIPERS HAD STOPPED WORKING AND THE SRS WARNING LIGHT WAS ILLUMINATED. THE CAUSE OF THE FAILURES WERE NOT DETERMINED. THE LOCAL DEALER PLAZA MERCEDES BENZ LOCATED AT 11910 OLIVE BLVD, CREVE COEUR, MO 63141 AND THE MANUFACTURER WERE NOTIFIED OF THE FAILURES. THE FAILURE MILEAGE WAS 150,000.
2008 C350 DRIVER SIDE MIRROR IS VIBRATING, ESPECIALLY ON THE HIGHWAY, SEEMS LIKE ALL THE C-CLASSES ARE DOING THIS INCLUDING LOANER CAR. ADVISED MB AND THEY SAY IT IS NOTHING OUT OF THE ORDINARY, BUT THEY DO NOT HAVE THE SAME PROBLEM ON THE E-CLASS AND R-CLASS. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2008 MERCEDES-BENZ C350. THE CONTACT STATED THAT THE VEHICLE EMITTED AN ABNORMAL FUEL ODOR. MONTHS AFTER THE ODOR WAS NOTICED, THE VEHICLE BECAME INOPERABLE. THE FAILURE OCCURRED WITHOUT WARNING. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT FUEL ENTERED INTO THE CARBON FILTER AND THE ENTIRE FUEL TANK NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE DEALER AND MANUFACTURER WERE NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 130,000. THE VIN WAS NOT PROVIDED.
I PARKED THE CAR,FEW HOURS LATER,I TRY TO PUT IT ON,NO STARTING OCCURRED,NO EXTERNAL LIGHT ,THE BATTERY WAS DEAD. I BOUGHT A NEW BATTERY BUT IT DID NOT FUNCTION.I CONSULTED WITH SEVERAL MECHANICS AND ONE THEM TALLED ME THAT PLACE WHERE I PUT THE KEY THAT IS CALLED THE PANEL SWITCH WAS DAMAGE AND SUGGESTED ME TO CALL MERCEDES BENZ DEALER BECAUSE IT HAPPENS THAT THERE WAS RECALLS THAT SEVERAL CARS HAD THE SAME PROBLEMS FOR CARS FROM 2008 -2014.THIS PROBLEM AFFECTED THE ORIGINAL BATTERY THAT I HAD.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2008 MERCEDES-BENZ C 350. THE CONTACT STATED THAT THE VEHICLE WAS SHIFTED INTO REVERSE BUT THE VEHICLE WOULD NOT RESPOND. THE CONTACT THEN SHIFTED INTO DRIVE BUT STILL, NO RESPONSE. THE CONTACT HAD TO RESTART THE VEHICLE TO IN ORDER FOR THE VEHICLE TO RESPOND. THE VEHICLE WAS TAKEN TO THE DEALER BUT THE DEALER DID NOT PERFORM A DIAGNOSTIC TEST. THE FAILURE MILEAGE WAS 21,000. THE VIN WAS NOT AVAILABLE.
I REALLY NEEDED MB TO COME THROUGH FOR ME IN MY SITUATION. I'M A LOYAL OWNER OF MERCEDES BENZ (TWO CARS IN THE PAST 4 YEARS). MY MOST RECENT PURCHASE, THE C350 SPORT, CAME DOWN WITH A TRANSMISSION BREAKDOWN LAST WEEK AFTER 3 YEARS AND JUST 86K MILES. I HAD THE CAR TOWED TO THE EUROMOTORS, GERMANTOWN MD JUST TO BE TOLD THAT I WAS GOING TO HAVE TO PAY ABOUT $10 K IN REPAIRS. I BECAME A MB CUSTOMER BECAUSE OF YOUR CRAFTSMANSHIP REPUTATION. I NEVER EXPECTED A POWERTRAIN ISSUE SO EARLY IN THE LIFE OF SUCH A GREAT CAR. THEIR SERVICE DEPARTMENT DIAGNOSED MY CAR AS NEEDING A NEW TRANSMISSION BUT ARE NOT WILLING TO OFFER A COURTESY REPAIR ON MY CAR BECAUSE MY REGULAR SCHEDULED SERVICES HAD NOT BEEN COMPLETED BY THEM OR SINCE 38K MILES. AS THE GM OF EUROMOTORS GERMANTOWN I'M WRITING TO ASK FOR YOUR HELP IN MY UNIQUE SITUATION. I'M SURE YOU ARE ALSO A MERCEDES BENZ OWNER OR DRIVER AND IN THAT CASE HOW WOULD YOU FEEL AS THE OWNER OF BRAND THAT HAS BE PORTRAYED AS ONE OF THE FINESSE CAR COMPANIES AROUND BASED ON CRAFTSMANSHIP AND RELIABILITY FACTORS TO JUST GET HIT WITH A TRANSMISSION PROBLEM IN LESS THEN 4 YRS AND 86K MILES. I WISHED MB STOOD BEHIND THEIR PRODUCTS AS ADVERTISED, I GUESS I MADE A BIG MISTAKE WHEN I LEFT BMW TO BECOME A MERCEDES OWNER. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Body & structure
Reports naming the vehicle structure, frame, body panels, doors, hood and trim.
From owner reports, verbatim
-The rear subframe rusted through and broke. This made the vehicle extremely unsafe to drive. Braking caused the vehicle to veer right and was unsafe to stop. -Both a Mercedes dealership service center and an independent service center confirmed and verified the issue. -The part was inspected by the Mercedes dealership service center and the independent service center. -There were no warning lights or messages. The vehicle started making minor sounds in the rear of the vehicle prior to failure.
TL* THE CONTACT OWNS A 2008 MERCEDES BENZ C350. THE CONTACT STATED THAT THE FRAME WAS SEVERELY RUSTED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 140,000. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Seat belts
Reports naming seat belts, buckles, retractors and pretensioners.
From owner reports, verbatim
PASSENGER SEATBELT IS CLICKED ON, BUT IT KEPT ON BEEPING SHOWING THAT ITS NOT CLICK ON WHILE DRIVING. IT DOES THAT VERY OFTEN SINCE I GOT THE CAR BACK IN 2011. THE SAME AS THE PASSENGER AIRBAG, THE LIGHT SENSOR KEEPS ON POPPING ON AND OFF WHILE DRIVING TOO. I DONT KNOW IF THIS A PROBLEM I SHOULD TAKE CARE OF MYSELF BECAUSE OF MY DAILY DRIVING.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Driver assistance
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.
From owner reports, verbatim
AFTER A FEW YEARS OF DRIVING THE VEHICLE THE FOLLOWING STOPPED WORKING CAUSING DIFFICULTY DRIVING THE VEHICLE ABS/EPS INOPERATIVE CRUISE CONTROL INOPERATIVE
Too few reports in this category for a page of its own — they appear in the full complaint list.
Suspension
Reports naming suspension components — springs, struts, shocks, control arms and related hardware.
From owner reports, verbatim
The rear subframe is corroded, the rear subframe is a structural part of the car that Mercedes refuses to cover under warranty or issue a recall for even though it is issued under recall in Canada
Too few reports in this category for a page of its own — they appear in the full complaint list.
Other / unspecified
Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.
From owner reports, verbatim
WHEEL BOLTS CORRODE EXCESSIVELY DUE TO INCOMPATIBLE METALS BETWEEN ALUMINUM WHEELS AND ZINC PLATED STEEL BOLTS. CAN BE DANGEROUS TO VEHICLE OPERATOR WITH TIME.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Tires & wheels
Reports naming tires, wheels, hubs, or the tire-pressure monitoring system.
From owner reports, verbatim
CATASTROPHIC TIRE FAILURE ON NEW (500MI) CONTINENTAL CONTISPORT3 . LEFT FRONT TIRE (225/40/ZR18).. ON I-80 WEST END TOLL BOTH. SOUDED LIKE EXPOSION, NO POTHOLES IN ARES PER ITR CONCESSION COMPANY. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .