Mercedes-Benz GLK350 fuel smell problems

Filed Jul 15, 2026 · Engine, Fuel system · 100,000 miles · TX

The contact owns a 2014 Mercedes-Benz GLK350. The contact stated that there was an abnormal fuel odor inside and outside vehicle. The check engine, TPMS, and several other unknown warning lights were illuminated. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 100,000.

Filed Feb 28, 2026 · Fuel system · CA

I noticed fuel / gas smell from my vehicle. I looked up cause for this type of occurrence. I was referred to a recall bulletin for this particular cause - Recall Campaign #2013020002. My vehicle (VIN #) is not on the recall list. Both MB dealerships in my area state I would have to cover the cost to replace the Fuel Filter Flange. I am certain the Fuel Filter Flange is defective and should be listed in the recall. I pulled up the rear seat and removed the cover to expose the Fuel Filter Flange. There was gasoline on top of the Fuel Filter Flange. (I have documented with pictures).

Filed Aug 8, 2024 · Fuel system · AZ

Gasoline smell around the car when parked in the garage. An inspection underneath the car and in the engine, bay failed to locate the leak. A [XXX] search for fuel leak on Mercedes Benz (MB) returned a number of hits for problems with leaks around fuel tank components on the GLK and other MB models. Upon removal of the rear seat and a check under the two fuel tank covers, I found gasoline pooled on a concave area on top of the Fuel Suction Pump Assembly, MB, part 2184700994 (see attached photos). This plastic part has cracks in it that allow fuel to escape. I contacted MB U.S. headquarters support as I thought that they may have been a campaign to replace this component since the 2012 GLK had a recall for fuel flange cracks but the MB customer support team indicated that a campaign did not exist for this issue on the 2015 MB GLK. Since the car is out of warranty, I purchased a replacement part 2184700994 and installed it which fixed the problem. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 21, 2024 · Fuel system · CA

Vaporized gasoline fuel odor emanating from the back seat area due to fuel filter flange crack

Filed Feb 8, 2024 · Fuel system · 130,000 miles · NJ

The contact owns a 2013 Mercedes-Benz GLK350. The contact stated that while driving at an undisclosed speed, there was a gasoline odor in the interior of the vehicle. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who determined there was a gasoline leak however, the location of the leak was unknown. The vehicle was not repaired. After investigating the failure, the contact related the failure to the federal safety agency Campaign Number: 12V557000 (Fuel System, Gasoline) but the VIN was not included. The manufacturer was notified of the failure but referred the contact to the federal safety agency Hotline for assistance. The failure mileage was 130,000.

Filed Nov 27, 2023 · Fuel system · NC

Evap small leak P0456 Car cabin smells strong gas odor check engine light is on

Filed Nov 13, 2023 · Fuel system · 90,000 miles · CA

The contact owns a 2013 Mercedes-Benz GLK350. The contact stated that while the vehicle was parked in the garage, there was a strong gasoline odor coming from the vehicle. Additionally, the contact stated while driving at various speeds, there was a strong gasoline odor inside and outside of the vehicle. The dealer was notified of the failure and informed the contact that a fee would be charged for a diagnostic test. The vehicle was taken to an independent mechanic for an oil change, and the contact was informed that the fuel pump and the sending unit were leaking. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the federal safety agency Hotline for assistance. The failure mileage was approximately 90,000.

Filed Oct 4, 2023 · Engine · 85,000 miles · CA

The contact owns a 2013 Mercedes Benz GLK350. The contact stated that after driving approximately 30 minutes or more they would begin smelling a fuel odor coming from the rear end of the cabin. There were no warning lights. The contact had not taken the vehicle to the dealer. The vehicle had not been diagnosed or repaired. The contact found their vehicle's failure related to the recall 2012 however the recall did not include their year. The manufacturer was made aware and confirmed their vehicle was not included. The contact was referred to the federal safety agency. The approximate failure mileage was 85,000. The contact stated that an attempt to remove the back seat, they identified the smell and that it is coming from underneath. The vehicle has yet to be repaired and the smell is causes health problems.

Filed Jul 29, 2023 · Fuel system · FL

My mercedes GLK 350 4matic has a strong gas smell every time I fill up and I am afraid to park in my garage because of the very strong gas smell, and I am afraid of a fire.

Filed Jun 29, 2023 · Fuel system · MD

I noticed the smell of fuel coming from my vehicle, specifically when I top off at the gas station. This is dangerous as fuel can combust if ignited. I took the vehicle to be service, to find out about the fuel odor and was advised of the federal safety agency recall. Upon researching I see that although the federal safety agency recall #12V557000 specifically covers this issue, when entering my VIN, the recall does not appear for MY specific vehicle, which is a 2011 GLK-350. It appears there are several affected vehicles not included in the recall. This is a failure on behalf of Mercedes Benz as it is simple to conclude that the issue includes more vehicles than initially recalled. These vehicles need to be included as well.