2010 Mercedes-Benz GLK350 Fuel system Problems
- Complaints
- 30about this part
- Share
- 12%of 241 total for the year
- Median mileage
- 88,287miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 30 complaints about the fuel system of the 2010 Mercedes-Benz GLK350, 12% of the 241 complaints for this model year. Where a mileage was given, the median is 88,287 miles. 1 of these say a crash was involved and 1 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Very strong smelling fuel odor after everytime I fill it up with fuel. Yesterday 06/20/16 it starting leaking fuel. This has been going on since I bought it in november 2015. Car could be stationary or in motion and the smell of fuel is always there. Smells the worst when I fill it up. The actual leak prompted me to file this complaint.”
NHTSA complaint #10875218, filed 2016-06, 71,000 miles“Every time I fill up my mercedes glk 350 with fuel there is a very strong odor of fuel in my garage after I park the car. There is no visible leak of fuel on the garage floor or notification of any issue on the dashboard. The strong fuel order goes away after driving the car and burning off a gallon or so. This is a serious safety and health issue that started few weeks ago and is of a big concern to me and to my family.”
NHTSA complaint #11292018, filed 2019-12, 81,000 miles“Excessive fuel smell, turns out it's the fuel tank, was informed plastic fuel tank seam is splitting and is now a fire/safety issue. Informed that mercedes is aware of the problem and replaced many during warranty period, but now since my warranty is over this safety repair will cost me in excess of 3,000.00. This is a fire hazard and big time safety issue that the NHTSA needs to look into.”
NHTSA complaint #10925666, filed 2016-11, 84,000 miles“Fuel leaking/dripping after filling up with gas. The smell of gas prompted me to look under the vehicle and it was then that I saw a small pool of gas on the driveway. The leaking stopped when the tank was less than full and recurred when filling the gas tank. No damage yet, going to the dealer for their assesment.”
NHTSA complaint #10726310, filed 2015-06, 83,000 miles“On 4/24/16, a toyota rear ended me and pushed me into the vehicle in front of me. The damage would have been repairable until my car caught on fire. It looked like it started in the inside above the gas tank area, but the man working at the impound lot the next day said it looked electrical. Either way, the impact should not cause a mercedes to catch on fire. I was on a city street stopped at a stoplight.”
NHTSA complaint #10862316, filed 2016-04, 101,050 milesRelated service bulletins
- 10246055Nov 3, 2023In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA (âÂÂMBUSAâÂÂ) is…
- 11031654Oct 24, 2023In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA (“MBUSA”) is extending…
- 11031588Oct 20, 2023In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC (“MBUSA”) is…
- 10167553Jul 1, 2013Combination message: "Clean fuel filter" is displayed. The fault code 162500 (water level message - Bosch) or P226997 (water level message - Delphi) or 171600 (filter load…
- 10036765Oct 1, 2010Mercedes: check fuel information label. It has been determined that the fuel information label on the fuel filler flap may be missing.
Fuel system: other model years
Other parts of the 2010 Mercedes-Benz GLK350
149 complaintsSuspension
14 complaintsOther or unknown
13 complaintsBody and structure
11 complaintsVehicle speed control
9 complaintsBrakes
8 complaintsElectrical system
8 complaintsSteering
8 complaintsExterior lighting
5 complaintsEngine
4 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