2010 Mercedes-Benz GLK350 Engine Problems
- Complaints
- 4about this part
- Share
- 2%of 241 total for the year
- Median mileage
- 47,204miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine of the 2010 Mercedes-Benz GLK350, 2% of the 241 complaints for this model year. Where a mileage was given, the median is 47,204 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.
“After only 7 years of owning the 2010 mb glk 350, both the engine mounts and transmission mounts needed to be replaced at an estimated cost of $3000.00 at the dealership. The car has less than 50,000 miles on it, mostly city driving. This can present a safety hazard if you are driving your vehicle in high speeds; the engine may shift and bounce about so violently that various parts will fly off. Condition mostly seen in high mileage cars.”
NHTSA complaint #10971499, filed 2017-04, 47,204 miles“I took my MB in for service to have alternator replaced. After it was finished service did a multipoint inspection on vehicle and keep in mind I have had my car in for service before and if there had been a multi inspection wouldn't this have been seen before now? This report includes Rear sub Frame rusted & broke, rear brake lines rusted, fault code for intake manifold flap malfuntion, actuator arms broke, engine misfire on cylinders 3-5. Recommended Services is to replace transmission mounts, left engine mount, right engine mount, rear sub frame, rear brake llines, intake manifold. …”
NHTSA complaint #11488648, filed 2022-10“The contact owns a 2010 mercedes GLK350. The contact stated that while driving 40 MPH, all of the lights on the instrument panel illuminated and the vehicle stalled. The dealer was notified. Several days later the failure recurred. The vehicle was taken to the dealer who diagnose that the starter and fuel pump needed to be replaced. Also, the electrical system was upgraded. The manufacturer was made aware of the failure who decided to dispatch an engineer to inspect the vehicle. The vehicle was not repaired. The failure and current mileage was 18,000.”
NHTSA complaint #10474052, filed 2012-09, 18,000 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…
- 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 2010 Mercedes-Benz GLK350
149 complaintsFuel system
30 complaintsSuspension
14 complaintsOther or unknown
13 complaintsBody and structure
11 complaintsVehicle speed control
9 complaintsBrakes
8 complaintsElectrical system
8 complaintsSteering
8 complaintsExterior lighting
5 complaintsTransmission and drivetrain
4 complaintsElectronic stability control
3 complaints
← All problems reported for the 2010 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