2009 Mercedes-Benz CLK350 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 CLK350, 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
- Fuel system222.2%
- Visibility222.2%
- Driver assistance111.1%
- Airbags111.1%
- Other / unspecified111.1%
- Seat belts111.1%
- Brakes111.1%
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
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2009 MERCEDES-BENZ CLK350. WHILE OPERATING THE VEHICLE, THE ODOR OF FUEL WAS PRESENT. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE SEAL CONNECTED TO THE FUEL PUMP WAS FAULTY AND THE FUEL PUMP NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 38,000.
STRONG FUEL ODOR OUTSIDE OF VEHICLE FOLLOWING FILL UP. MILEAGE 59590.JUST PURCHASED USED WITHOUT EXTENDED WARRANTY.. HAVE NOT TAKEN FOR SERVICE. WILL SEEK INFO PRIOR TO TAKING TO MB SERVICE.
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
The contact owns a 2009 Mercedes - Benz CLK350. The contact stated he turned on the air condition of his vehicle and an odor of mold came from the vents. The vehicle was taken to the dealer and stated that there was no recall for that failure. The manufacturer was contacted, and they also stated that there was no recall for the failure and advised the contact to call the NHTSA Hotline. The failure mileage was 40,030.
TL* THE CONTACT OWNS A 2009 MERCEDES BENZ CLK350. THE CONTACT STATED THAT THE VEHICLE WAS TAKEN FOR STATE EMISSION TESTING AND SHE WAS INFORMED THAT THE VEHICLE WAS INCLUDED IN NHTSA CAMPAIGN NUMBER: 19V918000 (VISIBILITY) HOWEVER, PARTS TO DO THE RECALL REPAIR WERE NOT YET AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. NEITHER THE MANUFACTURER NOR THE DEALER WERE MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.
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
DRIVING STRAIGHT ABOUT 25MPH ALONG A AN OTHERWISE EMPTY RESIDENTIAL STREET. EXPERIENCED MULTIPLE MICRO-BURSTS OF SUDDEN, BRIEF, VIOLENT, UNINTENDED BRAKING. DRIVER'S FOOT WAS NOWHERE NEAR THE BRAKE PEDAL. BRAKING WAS SO VIOLENT THAT THE WHEELS LOCKED UP AND MADE SKIDDING SOUNDS AND OCCUPANTS WERE SHAKEN. EACH INCIDENCE OF BRAKING WAS VERY SHORT, PERHAPS A FRACTION OF A SECOND. THE FIRST OCCURRENCE (WHILE TRAVELING ~25MPH) THERE WERE ABOUT FOUR SEPARATE "BRAKES" WITHIN A FEW SECONDS. THIS OCCURRED ONLY TWO BLOCKS FROM HOME. I PROCEEDED HOME AT A MUCH SLOWER PACE WITH THE EMERGENCY LIGHTS FLASHING. EN ROUTE I EXPERIENCED SEVERAL MORE INCIDENTS OF SUDDEN, BRIEF, VIOLENT UNINTENDED BRAKING. NO WARNING LIGHTS (E.G. ESP) FLASHED DURING ANY OF THE BRAKING EPISODES. EVEN AT LOW SPEED ON A EMPTY ROAD THE UNINTENDED BRAKING WAS SO VIOLENT AS TO LEAVE ME SHAKEN. IF IT OCCURRED AT HIGH SPEED, ON A BUSY ROAD, AND/OR OF WITH AN INEXPERIENCED DRIVER THE CONSEQUENCES COULD HAVE BEEN SERIOUS.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Airbags
Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.
From owner reports, verbatim
I WAS INVOLVED IN A CAR ACCIDENT LAST FEBRUARY, MY AIRBAG DIDN'T DEPLOY AS COMPARED TO THE OTHER VEHICLE (TOYOTA) WHERE HER AIRBAG WORKED. MY CAR AND THE OTHER PERSON'S CAR WERE TOTALED. I WAS DRIVING ON THE MIDDLE LANE OF A 3 LANE ROAD WHEN THE DRIVER ON THE RIGHT SIDE LANE HIT A PARKED VEHICLE ON THE RIGHT SIDE OF THE ROAD, SPUN AROUND, AND CROSS OVER TO MY LANE AND HIT ME HEAD ON. A ROAD DUE TO MY ACCIDENT, I SUSTAINED A FRACTURE OF MY NECK AND STILL HAVE ONGOING PHYSICAL THERAPY TREATMENTS. *TT *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
THE TPMS CONSTANTLY DISPLAYS FALSE WARNING MESSAGES ABOUT THE TIRES BEING LOW ON PRESSURE. THIS BEGAN ABOUT TWO YEARS AGO, WHEN THE CAR WAS 7 YEARS OLD, 100K MILES. NUMEROUS TRIPS TO THE DEALER AND OTHER REPAIR SHOPS HAS NOT ALLEVIATED THE PROBLEM. TPMS CONSTANTLY GIVING A FALSE WARNING ABOUT LOW TIRE PRESSURE IS A SERIOUS PROBLEM. MUCH LIKE SMOKE ALARMS WHICH GIVE FALSE NOTICE, FALSE TIRE PRESSURE WARNINGS WILL BE IGNORED. THE VEHICLE IS TYPICALLY IN A MOVING CONDITION WHEN THE TPMS ISSUES A FALSE ALERT.
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
TL* THE CONTACT OWNS A 2009 MERCEDES BENZ CLK350. THE CONTACT STATED THAT THE FRONT DRIVER SEAT HEADREST AIR BAG EXPLODED WHILE DRIVING, AS A RESULT, THE CONTACT SUSTAINED LOSS OF HEARING IN HER LEFT EAR THAT REQUIRED MEDICAL ATTENTION. THE CONTACT STATED THAT THE VEHICLE'S SOS SYSTEM ALERTED HER OF A FAILURE AND A TOW TRUCK WAS SENT TO THE SCENE. THE VEHICLE WAS TOWED TO RBM OF ALPHARETTA (345 MCFARLAND PKWY, ALPHARETTA, GA 30004) HOWEVER THE FAILURE HAD NOT BEEN DIAGNOSED AS THE DEALER WAS WAITING FOR THE MANUFACTURER TO ADVISE AND SEND A FIELD INSPECTOR TO THE DEALER. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 123,000.
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
DRIVING STRAIGHT ABOUT 25MPH ALONG A AN OTHERWISE EMPTY RESIDENTIAL STREET. EXPERIENCED MULTIPLE MICRO-BURSTS OF SUDDEN, BRIEF, VIOLENT, UNINTENDED BRAKING. DRIVER'S FOOT WAS NOWHERE NEAR THE BRAKE PEDAL. BRAKING WAS SO VIOLENT THAT THE WHEELS LOCKED UP AND MADE SKIDDING SOUNDS AND OCCUPANTS WERE SHAKEN. EACH INCIDENCE OF BRAKING WAS VERY SHORT, PERHAPS A FRACTION OF A SECOND. THE FIRST OCCURRENCE (WHILE TRAVELING ~25MPH) THERE WERE ABOUT FOUR SEPARATE "BRAKES" WITHIN A FEW SECONDS. THIS OCCURRED ONLY TWO BLOCKS FROM HOME. I PROCEEDED HOME AT A MUCH SLOWER PACE WITH THE EMERGENCY LIGHTS FLASHING. EN ROUTE I EXPERIENCED SEVERAL MORE INCIDENTS OF SUDDEN, BRIEF, VIOLENT UNINTENDED BRAKING. NO WARNING LIGHTS (E.G. ESP) FLASHED DURING ANY OF THE BRAKING EPISODES. EVEN AT LOW SPEED ON A EMPTY ROAD THE UNINTENDED BRAKING WAS SO VIOLENT AS TO LEAVE ME SHAKEN. IF IT OCCURRED AT HIGH SPEED, ON A BUSY ROAD, AND/OR OF WITH AN INEXPERIENCED DRIVER THE CONSEQUENCES COULD HAVE BEEN SERIOUS.
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 .