2015 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 2015 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
- Airbags337.5%
- Engine225.0%
- Driver assistance112.5%
- Fuel system112.5%
- Powertrain (other)112.5%
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
Airbags
Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.
From owner reports, verbatim
TL* TAKATA RECALL THE CONTACT OWNS A 2015 MERCEDES-BENZ C350. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V010000 (AIR BAGS) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS UNAVAILABLE. THE DEALER WAS NOT MADE AWARE OF ISSUE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE. *BF*JB
TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ C350. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V010000 (AIR BAGS). THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. MERCEDES-BENZ OF DELRAY (1001 LINTON BLVD, DELRAY BEACH, FL 33444, (561) 291-6095) 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 AVAILABLE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. THE VIN WAS UNKNOWN.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ C350. WHILE DRIVING 65 MPH, THE ACCELERATOR PEDAL WAS DEPRESSED, BUT THE VEHICLE FAILED TO ACCELERATE. MULTIPLE WARNING INDICATORS ILLUMINATED. AFTER THE VEHICLE WAS TURNED OFF AND RESTARTED, IT OPERATED CORRECTLY. THE VEHICLE WAS TAKEN TO FRED MARTIN OF YOUNGSTOWN (4701 MAHONING AVE, AUSTINTOWN, OH 44515, (330) 793-2444) WHERE THE CONTACT WAS UNAWARE OF THE DIAGNOSIS; HOWEVER, HE WAS INFORMED THAT SOME OF THE WIRING WAS CLEANED. THE CONTACT MENTIONED THAT THE FAILURE RECURRED A YEAR LATER AND AN APPOINTMENT WAS SCHEDULED WITH THE DEALER FOR DIAGNOSTIC TESTING. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND INFORMED THE DEALER TO CONTACT THEM WITH THE DIAGNOSTIC RESULTS. THE APPROXIMATE FAILURE MILEAGE WAS 17,000. THE VIN WAS NOT AVAILABLE.
WHILE DRIVING, THE CAR LOSES THROTTLE AND THE ENGINE DOES NOT FUNCTION AT ALL. THE FOLLOWING ERROR SHOWS ON THE DASH: "INOPERATIVE SEE OPERATOR'S MANUAL". WHEN THIS HAPPENS, YOUR ONLY CHOICE IS TO COAST TO A SAFE PLACE. AFTER RESTARTING THE CAR, IT WILL FUNCTION FOR A SHORT TIME, ONLY TO REOCCUR. THIS OBVIOUSLY CAN BE DEADLY IF YOU CANNOT GET OFF THE HIGHWAY BEFORE THE CAR COMES TO A STOP. THIS HAS HAPPENED AT VARIOUS SPEEDS. *TR
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
TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ C350. WHILE DRIVING 65 MPH, THE ACCELERATOR PEDAL WAS DEPRESSED, BUT THE VEHICLE FAILED TO ACCELERATE. MULTIPLE WARNING INDICATORS ILLUMINATED. AFTER THE VEHICLE WAS TURNED OFF AND RESTARTED, IT OPERATED CORRECTLY. THE VEHICLE WAS TAKEN TO FRED MARTIN OF YOUNGSTOWN (4701 MAHONING AVE, AUSTINTOWN, OH 44515, (330) 793-2444) WHERE THE CONTACT WAS UNAWARE OF THE DIAGNOSIS; HOWEVER, HE WAS INFORMED THAT SOME OF THE WIRING WAS CLEANED. THE CONTACT MENTIONED THAT THE FAILURE RECURRED A YEAR LATER AND AN APPOINTMENT WAS SCHEDULED WITH THE DEALER FOR DIAGNOSTIC TESTING. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND INFORMED THE DEALER TO CONTACT THEM WITH THE DIAGNOSTIC RESULTS. THE APPROXIMATE FAILURE MILEAGE WAS 17,000. THE VIN WAS NOT AVAILABLE.
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
WHILE DRIVING, THE CAR LOSES THROTTLE AND THE ENGINE DOES NOT FUNCTION AT ALL. THE FOLLOWING ERROR SHOWS ON THE DASH: "INOPERATIVE SEE OPERATOR'S MANUAL". WHEN THIS HAPPENS, YOUR ONLY CHOICE IS TO COAST TO A SAFE PLACE. AFTER RESTARTING THE CAR, IT WILL FUNCTION FOR A SHORT TIME, ONLY TO REOCCUR. THIS OBVIOUSLY CAN BE DEADLY IF YOU CANNOT GET OFF THE HIGHWAY BEFORE THE CAR COMES TO A STOP. THIS HAS HAPPENED AT VARIOUS SPEEDS. *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
WHILE DRIVING, THE CAR LOSES THROTTLE AND THE ENGINE DOES NOT FUNCTION AT ALL. THE FOLLOWING ERROR SHOWS ON THE DASH: "INOPERATIVE SEE OPERATOR'S MANUAL". WHEN THIS HAPPENS, YOUR ONLY CHOICE IS TO COAST TO A SAFE PLACE. AFTER RESTARTING THE CAR, IT WILL FUNCTION FOR A SHORT TIME, ONLY TO REOCCUR. THIS OBVIOUSLY CAN BE DEADLY IF YOU CANNOT GET OFF THE HIGHWAY BEFORE THE CAR COMES TO A STOP. THIS HAS HAPPENED AT VARIOUS SPEEDS. *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 .