2015 Mercedes-Benz GLK250 Engine Problems
- Complaints
- 3about this part
- Share
- 16%of 19 total for the year
- Median mileage
- 12,750miles
- 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 GLK250, 16% of the 19 complaints for this model year. Where a mileage was given, the median is 12,750 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.
“While driving on an interstate highway during rush hour my mercedes glk suddenly slowed down to about 30mph. The car was unresponsive and would not accelerate. A .message that said 'inoperative see owners manual' appeared. We turned off the car and it started up without problem. We were very fortunate that we were able to pull over, as there is repair work being done and part of the highway didn't have a shoulder. We were lucky that we were not hit. This is very dangerous and needs to be corrected before someone gets hurt.”
NHTSA complaint #11079872, filed 2018-03, 25,000 miles“The DEF exhaust system has failed. It was replaced before under a recall. The warranty was previously extended on the system but I am outside of the mileage window but inside of the time window. I have $6000 in repairs so far and am trying to get assistance. I have been dealing with issues since October 2024”
NHTSA complaint #11640604, filed 2025-02“The contact owns a 2015 mercedes benz GLK250. While driving at an unknown speed, the engine warning light illuminated. The failure recurred several times. The vehicle was taken to the dealer three times. The technician was unable to duplicate or diagnose the failure. The manufacturer was made aware of the failure. The vehicle was not repaired. The failure mileage was 500.”
NHTSA complaint #10789656, filed 2015-11, 500 milesRelated service bulletins
- 11031622Oct 2, 2023This NCU replaces the prior NCU issued on August 19, 2022, and removes specific fault codes list. Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has…
- 11031655Sep 1, 2022The purpose of this letter is to advise you of additional benefits that Mercedes-Benz USA, LLC ("MBUSA") is providing to you regarding your vehicle ownership. What's Included In…
- 11031656Nov 6, 2020Dear Mercedes-Benz Owner: The purpose of this letter is to advise you of additional benefits that Mercedes-Benz USA, LLC (“MBUSA”) is providing to you regarding your vehicle…
- 11031625Nov 6, 2020Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2012-2016 Mercedes-Benz Model 212, 221, X204 and 166…
- 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
| Year | Complaints | Share of year |
|---|---|---|
| 2015 | 3 | 16% |
| 2014 | 2 | 10% |
Other parts of the 2015 Mercedes-Benz GLK250
7 complaintsElectrical system
3 complaintsBrakes
2 complaintsFuel system
2 complaintsOther or unknown
2 complaintsSteering
2 complaintsTransmission and drivetrain
2 complaintsVehicle speed control
2 complaints
← All problems reported for the 2015 Mercedes-Benz GLK250
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