RoadVitals

2008 Mercedes-Benz C350 Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
144
Latest Feb 5, 2025
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
14
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
6

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%
  • 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.

54
reports

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.

NHTSA ID 11640772 · filed Feb 5, 2025

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.

NHTSA ID 11543743 · filed Sep 11, 2023
All 54 reports naming electrical

Airbags

Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.

52
reports

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

NHTSA ID 11139405 · filed Oct 10, 2018

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.

NHTSA ID 11129125 · filed Sep 12, 2018
All 52 reports naming airbags

Steering

Reports naming the steering system — racks, columns, power-steering assist and steering linkage.

32
reports

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.

NHTSA ID 11640772 · filed Feb 5, 2025

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.

NHTSA ID 11543743 · filed Sep 11, 2023
All 32 reports naming steering

Exterior lighting

Reports naming headlights, tail lights, turn signals and other exterior lighting.

31
reports

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.

NHTSA ID 11390961 · filed Feb 1, 2021

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

NHTSA ID 11124469 · filed Sep 5, 2018
All 31 reports naming exterior lighting

Engine

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.

7
reports

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.

NHTSA ID 11496251 · filed Dec 6, 2022

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.

NHTSA ID 10865440 · filed May 17, 2016

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.

3
reports

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.

NHTSA ID 11390961 · filed Feb 1, 2021

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

NHTSA ID 10283927 · filed Sep 14, 2009

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.

2
reports

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.

NHTSA ID 11090461 · filed Apr 27, 2018

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.

NHTSA ID 10723521 · filed Jun 4, 2015

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.

2
reports

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.

NHTSA ID 10439977 · filed Dec 14, 2011

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

NHTSA ID 10430224 · filed Oct 14, 2011

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.

2
reports

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.

NHTSA ID 11497060 · filed Dec 12, 2022

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

NHTSA ID 10504684 · filed Mar 27, 2013

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.

1
report

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.

NHTSA ID 10717574 · filed May 20, 2015

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.

1
report

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

NHTSA ID 11399778 · filed Mar 8, 2021

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.

1
report

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

NHTSA ID 11456240 · filed Mar 10, 2022

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.

1
report

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.

NHTSA ID 10809102 · filed Dec 8, 2015

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.

1
report

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

NHTSA ID 10390404 · filed Mar 16, 2011

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

Data on this page last refreshed .