*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Service brakes
Vehicle was parked on the driveway, brake sign came on upon start and system malfunction error showed on screen, vehicle started lowering automatically and Air compressor stopped working.
Aug 3, 2026Suspension
I recently purchased my Mercedes from Auto Boutique in Pearland, Texas (713) 352-0777. 1.The vehicle's air suspension system is constantly grinding, and moving/adjusting while being driven. It feels like the vehicles fame is off balance. 2. The back camera system does not work unless the radio is turned on; which is very alarming not to mention dangerous. 3. All the tires are registering improper inflation errors even though no air has been added or removed. I took the vehicle back to the place of origin; but they are not Mercedes Certified to address the issues. I am terrified to drive the vehicle, and it stays parked in the garage
Jun 14, 2025Engine and engine cooling
The contact owns a 2014 Mercedes-Benz GL550. The contact stated that the check engine warning light was illuminated. The vehicle was taken to the dealer, where it was diagnosed with leaky exhaust valves. The dealer determined that the exhaust valves needed to be replaced. The vehicle was taken to an independent mechanic, where a similar assessment was made. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the vehicle was not covered under TSB Number: 10233794. The manufacturer referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 104,000.
Aug 7, 2024 · 104,000 milesEngine
Leaky exhaust valves
Jul 17, 2024Steering
The contact owns a 2014 Mercedes-Benz GL550. The contact stated while driving at an undisclosed speed, the steering wheel seized, and the vehicle lost motive power. The check engine and malfunction PP0 warning lights illuminated. The contact was able to steer the vehicle to the shoulder of the roadway. The contact stated that an independent mechanic facility was nearby, so the mechanic and the contact pushed the vehicle into the shop. The vehicle was diagnosed with failed cam shaft gear and lifters. The contact was informed that the cam shaft gear and lifters needed to be replaced. The vehicle was not repaired. The contact stated that the vehicle had been taken to the dealer previously…
Sep 19, 2022 · 100,000 milesEngine
Tapping noise developed in the engine, after dealership inspection using borescope, scored cylinder walls were found, resulting to engine replacement. Please see: Lena Jamil, et al. v. Mercedes-Benz USA, LLC (Case No: 2:22-cv-08130-FLA-AFM)
May 24, 2023Unknown or other1 injury
I HAD JUST ARRIVED HOME. THE CAR WAS OFF AND I WAS PARKED IN MY GARAGE. I OPENED THE DOOR BUT IT DIDN'T OPEN ALL THE WAY TO THE FIRST HINGE. MY HAND WAS IN THE DOOR AS IT SLOWLY STARTED TO CLOSE. THE DOOR CAUGHT SLIGHTLY AND THE SOFT CLOSE FEATURE ACTIVATED. MY THUMB WAS CAUGHT IN THE DOOR AND WAS CRUSHED AS THE DOOR SEALED COMPLETELY CLOSED WITH THE SOFT CLOSE FEATURE. I WAS UNABLE TO OPEN THE DOOR DURING THIS TIME. I WAS YANKING ON THE DOOR HANDLE TRYING TO OPEN THE DOOR TO FREE MY THUMB BUT THE DOOR WOULD NOT OPEN UNTIL THE SOFT CLOSE WAS COMPLETE. AS A RESULT MY THUMB WAS CRUSHED. I BELIEVE THAT THIS A DESIGN FAULT WITH THE VEHICLE. THE FACT THAT THERE WAS NO SENSOR TO DETECT SOMETHING…
Sep 18, 2018 · 33,000 milesSteering
DAIMLER AG, (DAG) THE MANUFACTURER OF MERCEDES-BENZ VEHICLES, HAS DETERMINED THAT ON CERTAIN GLE, GLS AND GLE COUP VEHICLES (166, 292 PLATFORM) WITH THE ACTIVE CURVE SYSTEM (ACS), THE OIL IN THE ACS'S OIL RESERVOIR COULD START FOAMING UNDER DYNAMIC DRIVING SITUATIONS IN COMBINATION WITH AN OIL LEVEL BELOW MINIMUM. THE OIL FOAM MIGHT LEAK OUT OF THE OIL RESERVOIR THROUGH THE VENT HOLES IN THE SEALING CAP. DEPENDING ON THE ORIENTATION OF THE VENT HOLES IN THE SEALING CAP, LEAKING OIL COULD SPRAY ONTO HOT SURFACE COMPONENTS OF THE EXHAUST SYSTEM. IN SUCH A CASE THE RISK OF A FIRE CANNOT BE RULED OUT. AS A PRECAUTIONARY MEASURE AN AUTHORIZED MERCEDES-BENZ DEALERSHIP, WILL CORRECT THE OIL LEVEL…
Jun 27, 2018 · 34,000 miles
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.