2009 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 2009 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
- Airbags2526.6%
- Steering2021.3%
- Electrical1617.0%
- Exterior lighting1313.8%
- Engine55.3%
- Interior & seats33.2%
- Brakes33.2%
- Fuel system33.2%
- Powertrain (other)22.1%
- Other / unspecified11.1%
- Seat belts11.1%
- Body & structure11.1%
- Suspension11.1%
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
Airbags
Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.
From owner reports, verbatim
TAKATA RECALL - WE HAVE CALLED ALEX RODRIGUEZ MERCEDES OVER 5 TIMES AND HAVE TAKEN THIS VEHICLE TO THEIR SERVICE DEPARTMENT NUMEROUS TIME. HAVE ASKED EACH TIME ABOUT THE RECALL AND REPLACEMENT OF THE TAKATA AIRBAGS. WE GET THE SAME ANSWER EVERY TIME-' AS SOON AS WE GET THE REPLACEMENT WE WILL CALL YOU IN TO REPLACE. WE DON'T HAVE THE SUPPLIES RIGHT NOW. ' VERY FRUSTRATING!!
TAKATA RECALL AIRBAG STILL NOT REPLACED
Steering
Reports naming the steering system — racks, columns, power-steering assist and steering linkage.
From owner reports, verbatim
Vehicle has lost its ability to be driven. Car alarm has gone of a multitude of times at different hours of day and night. Finally we were told that the steering column needs to be replaced. According to tow truck driver, Auto lock person, this is common from the 300 series of Mercedes Benz. Obviously very costly. My car is worthless at this point. I believe that the Mercedes Benz should have a recall on the steering column lock. Obviously, this is not only a defect but, also causing safety issues with it just turning off and not able to restart.
Total shutdown of complete system…brakes, steering and engine at around 25-to 30 MPH. No warning. Happened two times…once before M-B service and once after service for problem. It checked out OK from dealership months before only to have it happen again. Was lucky to avoid a crash both times. Sold to dealership. Wrote my safety concerns for a new owner to local dealership and corporate.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
2 YEARS AGO MANAGER TOLD ME THE WIRING OF THE HEAD LAMPS WAS MELTING BUT HE CAN ONLY REPLACE THE WHOLE UNIT( BOTH). I TOLD HIM THAT A CAR WITH 30000 MILS THIS SHOULD NOT BE HAPPENING. NOTHING HE CAN DO. THE CAR HAS STARTED TO BURN ON THE INSIDE , SMOKE COMES OUT OF THE ENGINE. CAR TRANSPORTS CHILDREN. TO AND FROM SCHOOL. EERY OTHER ONTH LAMPS BURN OUT, HAPPENING SINCE THE CAR WAS NEW. FINALLY WENT TO SHOP AGAIN TODAY AND THEY PUT IT ON PAPER. WIRE COATING FALLING APART, CAUSES BURN OUT OF LAMPS. THIS IS A HUGE DANGER AND SHOULD BE RECALLED NOT PAID BY USER. HAVE SENT 2 OTHER COMPLAINTS TO NHTSA WITH NO RESOLUTION. WHY????? ADDITIONALLY CAR HAS HAD TAIL LAMP PROBLEMS SINCE THE BEGINNING WITH ONE RECALL. ADDITIONALLY THE SEAT COVER OF THE DRIVER SIDE IS COMING APART IN PIECES SINCE YEAR 2. HOW IS IT POSSIBLE NO ACTION HAS BEEN TAKEN?
SECOND WARNING REGARDING THE ELECTRICAL WIRING REGARDING THE FRONT HEAD LAMPS. THE WIRING IS BURNING UP AND IT WILL CAUSE A FIRE WITH DEADLY CONSEQUENCES. THIS CAR HAS HAD A RECALL BEFORE REGARDING THE WIRING OF THE BACK STOP LIGHTS, IF NOTHING IS DONE THERE WILL BE A FIRE. THE SEAT (FRONT) COVERING IS PEELING OFF, CO. SAYS ITS NORMAL. THIS IS MY 2ND REPORT AND THE SMOKE IS GETTING HEAVIER ALL THE TIME AND IT IS AFFECTING THE COMPUTER OF THE CAR FUNCTION. THE VEHICLE IS ALWAYS PICKING UP CHILDREN WITH MY WIFE. VERY DIFFICULT TO GET PHOTO, BUT IS VISIBLE ON BOTH SIDES OF THE FRONT HEAD LIGHTS. THERE HAS BEEN NO FIRE YET BUT THERE IS SMOKE.
Exterior lighting
Reports naming headlights, tail lights, turn signals and other exterior lighting.
From owner reports, verbatim
I HAVE CONTINUED TO HAVE LIGHTING ISSUES WITH FRONT, REAR, AND SIGNAL LIGHTING. I AM CONSTANTLY HAVING TO PAY TO REPLACE THESE LIGHTS EVERY YEAR. NOW MY POWER STEERING MALFUNCTION EBS LIGHT HAS COME ON. THIS IS JUST TOO MUCH. I JUST PAID $1300 FOR SERVICE B AND SOME OTHER THINGS THAT NEEDED TO BE REPLACED. I AM TIRED OF ALWAYS HAVING TO PAY TO REPLACE LIGHTS.
"TAKATA RECALL" THERE ARE TWO RECALLS ON THE FRONT AIRBAGS ONE ISSUES IN FEBRUARY 11, 2016 AND THE OTHER MAY 25, 2016. I'VE TAKEN MY CAR IN SEVERAL TIMES FOR SERVICE AND INQUIRED ABOUT THE RECALL. AS OF TODAY THE REMEDY IS NOT AVAILABLE. THERE IS A FAULT SWITCH WITH THE HEADLIGHTS IN OFF POSITION THE LEFT RIGHT TURN SIGNAL FLASH WHEN THE KEYS ARE NOT IN THE VEHICLE. IT DRAINS THE BATTERY WHICH HAVE REPLACED TWICE. WE DETERMINED THAT IF WE KEEP THE LIGHT SWITCH IN AUTOMATIC POSITION IT DOES NOT HAPPEN.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
Total shutdown of complete system…brakes, steering and engine at around 25-to 30 MPH. No warning. Happened two times…once before M-B service and once after service for problem. It checked out OK from dealership months before only to have it happen again. Was lucky to avoid a crash both times. Sold to dealership. Wrote my safety concerns for a new owner to local dealership and corporate.
WHEN I PUT THE KEY IN THE IGNITION IT WILL NOT TURN OVER NO LIGHTS DISPLAY ON THE DASHBOARD. THE RADIO CUTS ON AND THE ONLY THING THAT DISPLAYS ON THE DASHBOARD IS THE MILEAGE NO OTHER LIGHTS. WHEN THE KEY IS TURNED TO FIRST OR SECOND POSITION. THE DAY BEFORE WHEN MY CAR WOULD NOT START I WAS ABLE TO TAKE THE KEY OUT OF THE IGNITION AND REPLACE IT IN THE CAR STARTED RIGHT UP THIS TIME IT DOES NOTHING. I'M BEING TOLD IT'S AN ESL STEERING WHEEL LOCK ISSUE THAT IS COMMON TO THIS CAR MODEL.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Interior & seats
Reports naming seats, latches, locks, linkages and interior fittings.
From owner reports, verbatim
2 YEARS AGO MANAGER TOLD ME THE WIRING OF THE HEAD LAMPS WAS MELTING BUT HE CAN ONLY REPLACE THE WHOLE UNIT( BOTH). I TOLD HIM THAT A CAR WITH 30000 MILS THIS SHOULD NOT BE HAPPENING. NOTHING HE CAN DO. THE CAR HAS STARTED TO BURN ON THE INSIDE , SMOKE COMES OUT OF THE ENGINE. CAR TRANSPORTS CHILDREN. TO AND FROM SCHOOL. EERY OTHER ONTH LAMPS BURN OUT, HAPPENING SINCE THE CAR WAS NEW. FINALLY WENT TO SHOP AGAIN TODAY AND THEY PUT IT ON PAPER. WIRE COATING FALLING APART, CAUSES BURN OUT OF LAMPS. THIS IS A HUGE DANGER AND SHOULD BE RECALLED NOT PAID BY USER. HAVE SENT 2 OTHER COMPLAINTS TO NHTSA WITH NO RESOLUTION. WHY????? ADDITIONALLY CAR HAS HAD TAIL LAMP PROBLEMS SINCE THE BEGINNING WITH ONE RECALL. ADDITIONALLY THE SEAT COVER OF THE DRIVER SIDE IS COMING APART IN PIECES SINCE YEAR 2. HOW IS IT POSSIBLE NO ACTION HAS BEEN TAKEN?
SECOND WARNING REGARDING THE ELECTRICAL WIRING REGARDING THE FRONT HEAD LAMPS. THE WIRING IS BURNING UP AND IT WILL CAUSE A FIRE WITH DEADLY CONSEQUENCES. THIS CAR HAS HAD A RECALL BEFORE REGARDING THE WIRING OF THE BACK STOP LIGHTS, IF NOTHING IS DONE THERE WILL BE A FIRE. THE SEAT (FRONT) COVERING IS PEELING OFF, CO. SAYS ITS NORMAL. THIS IS MY 2ND REPORT AND THE SMOKE IS GETTING HEAVIER ALL THE TIME AND IT IS AFFECTING THE COMPUTER OF THE CAR FUNCTION. THE VEHICLE IS ALWAYS PICKING UP CHILDREN WITH MY WIFE. VERY DIFFICULT TO GET PHOTO, BUT IS VISIBLE ON BOTH SIDES OF THE FRONT HEAD LIGHTS. THERE HAS BEEN NO FIRE YET BUT THERE IS SMOKE.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
Rear brake lines corroded leading to loss of brake fluid while on the road. My at the time 4 year old son and I were in the car (I was the driver). This was in December of 2022 so almost two years ago. Earlier that year, MB dealership warned me about rear sub frame being corroded, too, but the cost of repairs ($7,000) were out of reach. There were no warning signs the day brake line started leaking other than a dashboard message to check the brake fluid and I felt I could not really stop my car. Car was taken to a local shop and the rear brake lines were repaired for $1,158. on 12/12/2022. Then this spring 2024 rear sub frame fell apart while switching my winter wheels to all year wheels/tires. MB USA honored this repair through the extended warranty.
Total shutdown of complete system…brakes, steering and engine at around 25-to 30 MPH. No warning. Happened two times…once before M-B service and once after service for problem. It checked out OK from dealership months before only to have it happen again. Was lucky to avoid a crash both times. Sold to dealership. Wrote my safety concerns for a new owner to local dealership and corporate.
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
THE CAR HAS A STRONG GAS SMELL INSIDE THE CABIN AND OUTSIDE THE REAR OF THE DRIVER PASSENGER TIRE WELL AREA AND ITS A STRONG SMELL.
FIRST DAY WHEN RECEIVING MY KEYS FOR A BRAND NEW MERCEDES C350 2009 AT THE DEALERSHIP...ENGINE LIGHT TURNS ON. LATER FINDING OUT IT WAS THE FUEL SYSTEM NEEDED TO BE REPLACED. A MONTH LATER OF GETTING A BRAND NEW CAR CORROSION WAS FOUND IN THE TAILLIGHTS. THEN FINDING OUT CORROSION ON THE BRAKE PADS. MONTHS AFTER THIS THE POWER TRAIN WAS SLIPPING UP... THE RPMS OF THE CAR WOULD SURGE UP HIGH AND REMAIN STUCK AT HIGH RPMS. IF I ACCELERATED THE GAS IT WOULD SHOOT UP HIGHER TO HIGHER RPMS AND THE CAR WOULD MAKE THE NOISE BUT IT WOULDN'T MOVE. I THOUGHT IF I LET GO OF THE GAS THINKING THE RPMS WOULD RETURN BACK DOWN... BUT IT WOULDN'T...HUGE SAFETY ISSUE WHEN YOUR IN THE MIDDLE OF THE FREEWAY AND HAVE NO CONTROL TO DRIVE YOUR CAR. I WOULD HAVE TO PULL OVER SOME HOW AND TURN OFF THE CAR FOR THE RPMS TO COME BACK DOWN SO I CAN DRIVE IT AGAIN. I BROUGHT THE CAR BACK SEVERAL TIMES TO THE DEALERSHIP BUT THEY COULD NEVER DUPLICATE THE ISSUE. THEREFORE, NOTHING GOT FIXED OR REPLACED JUST CONSTANT SOFTWARE UPDATES WERE STATED WERE DONE. SOON AFTER TAKING MY CAR OVER 5+ TIMES FOR THIS SAME ISSUE, MY SRS STEERING MALFUNCTIONED. I GOT THAT REPLACED AND PAID FOR IT A YEAR AGO. NOW BACK TODAY EXACTLY 12 MONTHS LATER REPAIRING IT AGAIN - SRS MALFUNCTION...AGAIN STRANDED IN THE MIDDLE OF NO WHERE WAITING FOR A TOW TRUCK ALL ALONE. I HAVE BEEN TO THE DEALERSHIP REPAIRING MY CAR FOR SO MANY DIFFERENT THINGS, GETTING STRANDED, TOWING MY CAR, PAYING FOR ALL REPAIRS AND GIVING UP WEEKENDS AND WORK TIME TO GO TO THE DEALERSHIP. I HATE THIS CAR! THAT I'M ABSOLUTELY HAVE NO PEACE OF MIND, I DON'T FEEL SAFE, CAR IS NOT RELIABLE, HAS EXTREMELY POOR QUALITY. NOT WORTH IT AT ALL! *TR
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
CAR HAD IGNITION SWITCH FAILURE. STEERING WHEEL LOCKED TRANSMISSION LOCKED IN PARK. DASH LIGHTS AND DOOR LOCKS OPERATE.CAR HAD TO BE TOWED TO DEALER.THIS HAS BEEN A LARGE PROBLEM WITH THESE VEHICLES FOR YEARS.THERE SHOULD BE A MANUFACTUER RECALL NOT A CONSUMER EXPENSE. THANK YOU,PLEASE HELP
FIRST DAY WHEN RECEIVING MY KEYS FOR A BRAND NEW MERCEDES C350 2009 AT THE DEALERSHIP...ENGINE LIGHT TURNS ON. LATER FINDING OUT IT WAS THE FUEL SYSTEM NEEDED TO BE REPLACED. A MONTH LATER OF GETTING A BRAND NEW CAR CORROSION WAS FOUND IN THE TAILLIGHTS. THEN FINDING OUT CORROSION ON THE BRAKE PADS. MONTHS AFTER THIS THE POWER TRAIN WAS SLIPPING UP... THE RPMS OF THE CAR WOULD SURGE UP HIGH AND REMAIN STUCK AT HIGH RPMS. IF I ACCELERATED THE GAS IT WOULD SHOOT UP HIGHER TO HIGHER RPMS AND THE CAR WOULD MAKE THE NOISE BUT IT WOULDN'T MOVE. I THOUGHT IF I LET GO OF THE GAS THINKING THE RPMS WOULD RETURN BACK DOWN... BUT IT WOULDN'T...HUGE SAFETY ISSUE WHEN YOUR IN THE MIDDLE OF THE FREEWAY AND HAVE NO CONTROL TO DRIVE YOUR CAR. I WOULD HAVE TO PULL OVER SOME HOW AND TURN OFF THE CAR FOR THE RPMS TO COME BACK DOWN SO I CAN DRIVE IT AGAIN. I BROUGHT THE CAR BACK SEVERAL TIMES TO THE DEALERSHIP BUT THEY COULD NEVER DUPLICATE THE ISSUE. THEREFORE, NOTHING GOT FIXED OR REPLACED JUST CONSTANT SOFTWARE UPDATES WERE STATED WERE DONE. SOON AFTER TAKING MY CAR OVER 5+ TIMES FOR THIS SAME ISSUE, MY SRS STEERING MALFUNCTIONED. I GOT THAT REPLACED AND PAID FOR IT A YEAR AGO. NOW BACK TODAY EXACTLY 12 MONTHS LATER REPAIRING IT AGAIN - SRS MALFUNCTION...AGAIN STRANDED IN THE MIDDLE OF NO WHERE WAITING FOR A TOW TRUCK ALL ALONE. I HAVE BEEN TO THE DEALERSHIP REPAIRING MY CAR FOR SO MANY DIFFERENT THINGS, GETTING STRANDED, TOWING MY CAR, PAYING FOR ALL REPAIRS AND GIVING UP WEEKENDS AND WORK TIME TO GO TO THE DEALERSHIP. I HATE THIS CAR! THAT I'M ABSOLUTELY HAVE NO PEACE OF MIND, I DON'T FEEL SAFE, CAR IS NOT RELIABLE, HAS EXTREMELY POOR QUALITY. NOT WORTH IT AT ALL! *TR
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
WHEN I PUT THE KEY IN THE IGNITION IT WILL NOT TURN OVER NO LIGHTS DISPLAY ON THE DASHBOARD. THE RADIO CUTS ON AND THE ONLY THING THAT DISPLAYS ON THE DASHBOARD IS THE MILEAGE NO OTHER LIGHTS. WHEN THE KEY IS TURNED TO FIRST OR SECOND POSITION. THE DAY BEFORE WHEN MY CAR WOULD NOT START I WAS ABLE TO TAKE THE KEY OUT OF THE IGNITION AND REPLACE IT IN THE CAR STARTED RIGHT UP THIS TIME IT DOES NOTHING. I'M BEING TOLD IT'S AN ESL STEERING WHEEL LOCK ISSUE THAT IS COMMON TO THIS CAR MODEL.
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
TAKATA RECALLS, THE VEHICLE STEERING LOCK MODULE GAVE OUT AND THE DEALERSHIP HAS STOP SELLING THE PARTS FOR THIS DUE TO THIS CURRENT UNRESOLVED RECALL HAVING CUSTOMER GO TO THE DEALERSHIP FOR SERVICE WHICH IS UNFAIR DUE TO EXTRA COST SO MY VEHICLE IS UNABLE TO BE DRIVEN AT ALL.
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
HI, ON MY COMMUTE HOME FROM WORK, I WAS GETTING READY TO EXIT THE HIGHWAY BY DECELERATING. MY CAR SWERVED AND ALMOST LOST CONTROL WHEN I BEGAN TO PRESS THE BRAKES. THERE WERE NO CARS AT 7AM ON THE WEEKEND, SO I WAS ABLE TO COAST TO THE LIGHT AT THE END OF THE 1/4 MILE EXIT RAMP. I CONTINUE HOME, BUT FEEL THE CAR KICKING OUT THE REAR END WHEN I BRAKE. AT SIGNIFICANTLY LOWER SPEEDS I LOOK IN THE MIRROR AS I BRAKE AND NOTICE MY REAR RIGHT WHEEL TURNING INWARDS. I GET HOME AND WHEN I WAKE UP I LIFTED THE CAR AND CHECKED TO SEE WHAT IT WAS. THE SAFETY ISSUE IS THAT THE REAR BRACKET WELDED TO THE CROSS MEMBER THAT HOLDS THE REAR TIE ROD CRAKED.
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
REAR SUBFRAME RUSTED THROUGH ON BOTH SIDES AND BROKE WHILE DRIVING ABOUT A YEAR AGO. NEARLY LOST CONTROL OF THE CAR. THERE WAS 55,000 MILES ON THE CAR AT THE TIME. ALSO, I HAVE ANOTHER VEHICLE SAME W204 CAR SERIES 120,000 MILES ON THIS CAR. VIN [XXX]. LAST WEEK THE REAR SUBFRAME BROKE ON THAT CAR WHILE DRIVING. CAME VERY CLOSE TO HAVING SERIOUS WRECK ON I77. MERCEDES REPLACED AND PAID FOR THE FIRST VEHICLES SUBFRAME. I PAID FOR THE LABOR. THEY ARE GIVING ME 30% OFF THE REPAIR OF THE ONE NOW IN THE DEALERS SHOP. I HAVE BEEN TOLD BY A MERCEDES SERVICE MANAGER THAT THIS IS A PREVALENT PROBLEM AROUND THE COUNTRY AND THAT MERCEDES KNOWS THEY HAVE A PROBLEM WITH THE SUBFRAME ON THIS MODEL. I HAVE RESEARCHED THIS ON THE WEB AND FOUND MANY OTHERS WITH THE SAME PROBLEM. THIS IS A VERY SERIOUS SAFETY ISSUE. I WOULD NOT BE SURPRISED IF SOMEONE HAS DIED FROM THIS PART FAILURE. PLEASE INVESTIGATE THIS FOR A RECALL. IT WILL SAVE SOME LIVES. REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *CC
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 .