2011 Mercedes-Benz GLK350 Engine Problems
- Complaints
- 3about this part
- Share
- 2%of 133 total for the year
- Median mileage
- 125,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine of the 2011 Mercedes-Benz GLK350, 2% of the 133 complaints for this model year. Where a mileage was given, the median is 125,000 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.
“I'm having the same issues as described in Recall no. 12V557000. However when I called Mercedes they mentioned that my Vin wasn't part of that recall. I don't understand how can that be when my car is 2011-2012 glk350 model as described in recall and I smell gas, can see gas leaking and the flange where my fuel filter is cracked as well as the flange to the fuel pump side. This car as well as many other Mercedes have two separate flanges that are prone to crack and not just the fuel filter side but the fuel pump side as well. there's many forums where they all have complained about this issue. …”
NHTSA complaint #11513030, filed 2023-03“The contact owns a 2011 Mercedes-Benz GLK350. The contact stated that on several occasions while driving at various speeds, the vehicle lost motive power and decelerated unintendedly. The check engine warning light was illuminated. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and a complaint was filed. The failure mileage was 125,000.”
NHTSA complaint #11538396, filed 2023-08, 125,000 miles“The air conditioner does not blow cool air, it blow hot air and smells moldy. Specifically when the temperture gets 90 degrees or higher and the engine sounds loud.”
NHTSA complaint #11003243, filed 2017-07Related 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 2011 Mercedes-Benz GLK350
92 complaintsFuel system
21 complaintsBrakes
6 complaintsSteering
6 complaintsElectrical system
5 complaintsBody and structure
3 complaintsExterior lighting
2 complaintsSuspension
2 complaintsTransmission and drivetrain
2 complaintsVehicle speed control
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsEngine cooling
1 complaints
← All problems reported for the 2011 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