My truck has been smelling like gas for a while. I replaced the gas cap and still smelled gas when I was driving. Recently I started smelling it inside the car. It was leaking from two places under the car when I would drive it or just have it running. The mechanic took the plastic piece off the bottom and gas started pouring down. He took the back seats out and there was a pool of gas sitting on the fuel pump. He had me start the car and it immediately started spewing from the fuel pump inside the car. I did not know I could report a complaint so I did not take pictures. The car has been sitting since Saturday without being turned on and the gas spot on the ground remains wet. It-??s very dangerous and right now I cannot fix it due to finances.

- Gotha , FL, USA

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)

- Tempe, AZ, USA

Small quantity of spilled liquid causes shutdown of engine and fuel ECM. Over $2200 to repair (replacing fuel pump! and ECM!), but the real issue is the immediate disabling of the vehicle in traffic can easily cause an accident. This could be prevented by a little cover or epoxy or caulk. This module was killed by a spill in the cargo area which can be caused by a kid spilling a drink in the back seat also. This is very dangerous as this incident was a near miss with many vehicles as it occurred on a 6 lane highway. The vehicle is a sport utility vehicle marketed to be able to carry groceries and children. Groceries such as liquids can burst or leak, children can spill drinks. Mbusa documented the case, but refuses to issue a recall or upgrade.

- Tyler, TX, USA

While exiting the hwy the car slow down on its own from about 60 to around 45 without breaking. Inoperative see owner's manual appeared on the dashboard and the car started loosing power. When I tried to accelerate it did would not speed up pass 50. After coming to a traffic light I tried to accelerate and it was very slow even when the pedal was all the way down to the floor. Luckily there was no one on the road at the time. I pump the pedal several times trying to speed up and it would not go pass 55-60 despite pressing the gas to the floor. After I got home I turned the car off and on then drive it again, acceleration seemed to come back and the lights were no longer on the dashboard

- Dacula, GA, USA

Message dashboard indicator (mdi) read "inoperative. See operator's manual" with other malfunction lights including check engine light (cel). Turned car off an on and only the cel remained. Also, there was a recurring ticking noise that preceded aforementioned issues that I also reported. Dealership repaired loose pin in engine ECU (P045100) for the cel and replaced a high pressure fuel pump for the ticking noise. Ticking noise continued and vehicle returned to dealership where they determined the ticking noise was related to the dash/radio/ac control panel/dash trimming moving against each other but indicated that this was normal (3778 miles). The issue related to the mdi and cel occurred again on 01/25/2015. As with the initial occurrence, the cel remained on after restarting the vehicle. The vehicle seemed to stall while I was driving 65 mph on a major highway when driving a few hours later. Fortunately, I was able to exit the highway. I noticed that the car drove very sluggishly. For example, the car would hardly accelerate regardless of how far down I pressed the accelerator after attempting to continue from the red light. I recalled this happening with the first occurrence but then thought it was something I was doing incorrectly. The engine light remained on after restarting the vehicle and as I drove approximately 10 minutes to my final destination. The engine light did not come on when I started the car again at 10:40 am (4017 miles). Out of concern, and advice from family members given what happened when driving at a high speed, I took the car to a local auto store to see if they could determine any fault codes. A code of P2138 was returned.

- Atlanta, GA, USA