2012 Mercedes-Benz GLK350 Engine Problems
- Complaints
- 2about this part
- Share
- 1%of 167 total for the year
- Median mileage
- 15,210miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine of the 2012 Mercedes-Benz GLK350, 1% of the 167 complaints for this model year. Where a mileage was given, the median is 15,210 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“When driving 40 MPH or more, the engine stalls and the unit in the dashboard that contains the odometer and speed, begins to turn white in color. It appears the software error within the engine control unit causes the vehicle to stall when driving at a certain speed or when I am coasting to a stop, such as at a traffic light. My vehicle begins to shut-down in the mist of my driving at 40 MPH or more, however, when I put my foot on the brake, the engine picks up speed. …”
NHTSA complaint #10790053, filed 2015-11, 15,210 miles“Car shuttered when accelerating , vibrates when at stop lights. Got inspection torque converter clutch slipping dealership recommend transmission replacement based on mileage 150k. Oil cooler leaking, centrifuge leaking, motor mounts collapsed. Mb is aware of issue, but only want to address certain vins. Mb corp suggested I contact the dealership to get corrected only assistance they offered incentive buy a new car. Seen many service bulletins on this issue.”
NHTSA complaint #11374336, filed 2020-11Related service bulletins
- 11031648Oct 5, 2021Mercedes-Benz USA, LLC will provide an Extended Modification Warranty for each vehicle that has received the Approved Emission Modification. The Extended Modification Warranty…
- 10135598Mar 25, 2015Engine diagnosis warning lamp lights up in instrument cluster, fault code U145400: "Implausible data were received from the ethanol sensor"
- 10056233Mar 13, 2014Xentry (mercedes): in the instrument cluster, an esp warning due to implausible accelerator pedal signal received from engine control unit. Model 2012 172, 212, 218, 207, 204.
- 10050900Oct 31, 2012Mercedes (xentry): when engine switches to unit protection function (limp-home mode), set too conservatively, causes vehicle to have reduced or no power, intermittently, and…
Engine: other model years
Other parts of the 2012 Mercedes-Benz GLK350
132 complaintsFuel system
13 complaintsOther or unknown
7 complaintsBrakes
6 complaintsElectrical system
4 complaintsSuspension
4 complaintsSeats
3 complaintsSteering
3 complaintsTransmission and drivetrain
3 complaintsBody and structure
2 complaintsWheels
2 complaintsElectronic stability control
1 complaints
← All problems reported for the 2012 Mercedes-Benz GLK350
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology