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.
Mercedes-Benz GLK350 check engine light comes on
13 of the 904 owner complaints about the Mercedes-Benz GLK350 describe check engine light, most of them for the 2014 model year.
- owner complaints
- 13
- worst model year
- 2014
- typical mileage
- 76,200
Is there a fix? No recall or service bulletin covers this area of the car yet.
By model year
- 20152
- 20145
- 20131
- 20121
- 20114
Often reported together
Trouble codes mentioned
P2138 1P0456 1
What owners say
The following are malfunctions that are a high risk when driving: •airbags •ball joints •coolant •control arms •electrical power system It is a risk when driving due to the ball joints and control arms not properly secured. Engine warning light
Evap small leak P0456 Car cabin smells strong gas odor check engine light is on
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.
The contact owns a 2014 Mercedes-Benz GLK350. The contact stated that while driving at various speeds, the vehicle lost motive power and stalled with the check engine and traction control warning lights illuminated. The vehicle was taken to the local dealer who serviced the vehicle however, the failure reoccurred. No further information was available. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 61,000.
The contact owns a 2014 Mercedes-Benz GLK350. The contact stated that the ABS, check engine, and traction control warning lights were illuminated. The vehicle was taken to an independent mechanic, who informed the contact that they could not diagnose the vehicle as the diagnostic link connector was missing from the vehicle. The contact stated that she verified that the diagnostic link connector was not in the location indicated in the Owner’s Manual. The contact stated that the vehicle was purchased used. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed nor repaired. The failure mileage was approximately 76,200.
My vehicle started smelling like gas. Took it in for inspection. Mechanic found a leak in the fuel assembly, resulting in gasoline pooling inside the vehicle under the back seat and leaking out through the bottom of the vehicle. I went online and noticed a recall was issued for 2011 and 2012 models. Ongoing issues with fuel modules leaking although no visible cracks were present. I contacted Mercedes to have them review if this would be covered under their recall and they declined saying they did not want to cover this under their recall. Mercedes made me take the vehicle in to their dealership in Kahului Maui to verify the issue which I did. They sent me a quote for the repair with no specific parts listed, just fuel module in the amount of $1884.71. Comments: "left fuel pump/filter assembly leaking" No warning lamps or check engine lights came on which is disturbing since exposed gasoline could lead to ignition with a small spark. With further investigation online I found that I am not the only GLK350 2014 owner that is having issues with fuel module leaking. Mercedes inspection form available here: https://app.mykaarma.com/service-cart/mpi/t8xQy8Ac2bYidaNLm0xxzW7MeeqxfPne_HG5wpWCmhQ/detail
Fuel/Propulsion System - There is a gas leaking from somewhere above the gas tank. I did not have this fixed yet because I see a recall for this but my VIN wasn't included in the initial recall. There are 17 other complaints on here for the same issue but we haven't been included in the recall as of today 1/2/2023. The recall that fixed other 2011 GLK 350s is the federal safety agency CAMPAIGN NUMBER: 12V557000 (FUEL SYSTEM, GASOLINE). My car is available for inspection upon request. I am very afraid of a fire because the tray underneath the car on the passenger side is full of gas & the tray is right over the exhaust. I stuck a large cotton swab in the tray to soak up the liquid & since it smelled like gas I tried to light it. It caught on fire immediately. This is definitely a safety hazard as it can ignite if a spark or lit cigarette would happen to bounce up in there. Yes it is unlikely but I have seen stranger things. The tray holds a large amount of gas and is directly under the gas tank. The check engine light came on and the diagnostic machine says fuel evap control system leak. A mechanic looked at the leak after taking the rear passenger tire off and finding the gas pooling in that tray. Odometer reads 145,000.
The contact owns a 2013 Mercedes-Benz GLK350. The contact stated that while taking the vehicle to 2 independent mechanics for a smog check inspection, she notified the mechanics that the check engine warning light was illuminated. The mechanics stated that at times the electrical sensor needed to be reset. Several days later the warning light returned. The contact took the vehicle to MBZ dealer who diagnosed the failure as Camshaft- hall sensor leaking oil travel into harness to my module. The Contact has now learned and been informed by mechanics of this matter. The vehicle was not repaired by MZB due to the repair cost. The failure mileage was approximately 37,573.
Tl* the contact owns a 2011 mercedes-benz glk350. The contact stated while driving 60 MPH, the check engine warning light illuminated and the contact started to smell fuel fumes inside the cab of the vehicle. The contact stated she was able to drive to her destination. The vehicle was taken to local dealer mercedes-benz of san francisco located at 500 8th st, san francisco, ca 94103, (415) 673-2000, however, the mechanic was unable to duplicate the failure. The vehicle was not repaired. The contact continued to experience the failure and saw fuel leaking inside of the vehicle. Upon investigation, the contact associated the failure with the federal safety agency campaign number: 12v557000 (fuel system, gasoline) however, the VIN was not included. The manufacturer had been informed of failure. The failure mileage was unknown. *ln
Related recalls
No recalls on record for this model year.
Questions about the Mercedes-Benz GLK350 check engine light
Why does the check engine light come on in the Mercedes-Benz GLK350?
Owners who report it most often also describe gas smell in the cabin, fuel leak and engine stalls while driving, and the codes they mention most are P2138 and P0456.
Which Mercedes-Benz GLK350 years have check engine light problems?
The model years with the most reports are 2014 (5 complaints), 2011 (4 complaints) and 2015 (2 complaints).
VIN decoder
See the problems and recalls for an exact car
Buying a used Mercedes-Benz GLK350?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history