2012 Mercedes-Benz R350 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 2012 Mercedes-Benz R350, 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
- Airbags562.5%
- Brakes112.5%
- Electrical112.5%
- Engine112.5%
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
TAMARA RECALL. IT'S BEEN 10 YEARS NOW. WHEN IS MY LUCK RUNNING OUT?
TL* TAKATA RECALL. THE CONTACT OWNS A 2012 MERCEDES-BENZ R350. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 16V081000 (AIR BAGS). THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTACT CALLED MERCEDES-BENZ OF DENVER (LOCATED AT 940 S COLORADO BLVD, DENVER, CO 80246, (303) 953-4581) AND WAS INFORMED THAT THE PART WAS NOT AVAILABLE. THE MANUFACTURER WAS NOT 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.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
The contact owns a 2012 Mercedes-Benz R350. The contact received notification of NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic) however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact stated that the rear end of the vehicle was making a grinding sound while the brake pedal was depressed. The contact took the vehicle to the dealer who completed the inspection mentioned in the recall and concluded that a replacement was needed. The approximate failure mileage was 185,000. Parts distribution disconnect.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
"TAKATA RECALL" - WHILE DRIVING ALONG A COUNTY STREET MY VEHICLE COMPLETELY STALLED. I PUT IN PARK AND IT STARTED AND WENT APPROXIMATELY A 1/2 OF A MILE AND STALLED AGAIN. IT DID THIS TWICE MORE BEFORE I GOT HOME WHERE I SHUT IT OFF AND CALLED A TOW COMPANY TO TAKE IT TO THE SHOP. MY SERVICE ADVISOR CALL AND TOLD ME THAT THE WIRING HONES TO THE ENGINE BURNED UP.
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 2012 MERCEDES BENZ E350. THE CONTACT STATED THAT THE ENGINE STALLED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO THE DEALER, WHO PERFORMED A DIAGNOSTIC THAT DETECTED SLUDGE IN THE ENGINE. THE ENGINE WAS REPLACED HOWEVER, THE FAILURE WAS NOT CORRECTED AND THE VEHICLE CONTINUED TO SPORADICALLY STALL. THE VEHICLE WAS TAKEN BACK TO THE DEALER FOR FURTHER INSPECTION. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE AND CURRENT MILEAGE WAS 34,000.
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 .