2015 Mercedes-Benz GLK350 Engine Problems
- Complaints
- 3about this part
- Share
- 3%of 114 total for the year
- Median mileage
- 16,250miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine of the 2015 Mercedes-Benz GLK350, 3% of the 114 complaints for this model year. Where a mileage was given, the median is 16,250 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.
“Driving 25 MPH around a curve when my car lost control, despite my best attempts my car would not allow me to take control or to break. My car went from 25 MPH to 60 MPH through a two lane traffic street, forcing me to swerve in and out of traffic merely missing six cars and a semi trailer truck, spinning my car around twice and facing the opposite direction of traffic.”
NHTSA complaint #11376095, filed 2020-11, 79,614 miles“Driving back from vacation last saturday, on the pennsylvania turnpike, our motor shut itself off. My husband was driving, using cruise control, going straight, with the econ button turned off. Luckily traffic was light and we were able to coast to a stop off the right side of the freeway without mishap. My husband turned the key off, waited about a minute, then started the engine again. The check engine light came on, but our motor stayed on, and we drove home without any more problems. I made an appointment with our m.b. Dealer to have the car serviced on this coming friday, oct. …”
NHTSA complaint #10778870, filed 2015-09, 16,250 miles“Message dashboard indicator (mdi) read inoperative. See operator's manual with other malfunction lights including check engine light (cel). Turned car off an on and only the cel remained. Also, there was a recurring ticking noise that preceded aforementioned issues that I also reported. Dealership repaired loose pin in engine ecu (p045100) for the cel and replaced a high pressure fuel pump for the ticking noise. …”
NHTSA complaint #10678793, filed 2015-01, 2,700 milesRelated 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…
- 10058563Jul 6, 2015Xentry (mercedes): stored in engine control unit (ecu) is fault to exhaust back pressure sensor causing engine to be in limp home mode and diagnosis warning lamp activated. Model…
- 10058548Jun 4, 2015Xentry (daimler): stored in engine control unit are faults relating to throttle valve actuator and/or oxygen sensor due to occasional transition resistance at contacts, causing…
- 10135598Mar 25, 2015Engine diagnosis warning lamp lights up in instrument cluster, fault code U145400: "Implausible data were received from the ethanol sensor"
Engine: other model years
Other parts of the 2015 Mercedes-Benz GLK350
84 complaintsElectrical system
7 complaintsFuel system
6 complaintsSteering
5 complaintsTransmission and drivetrain
5 complaintsVehicle speed control
5 complaintsElectronic stability control
4 complaintsBrakes
3 complaintsOther or unknown
3 complaintsLane departure
2 complaintsBody and structure
2 complaintsWheels
2 complaints
← All problems reported for the 2015 Mercedes-Benz GLK350
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 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