Mercedes-benz Gls-class Transmission Problems
9 owner complaints filed with NHTSA across 5 model years.
Complaints by Year
Worst year: 2017. Best year: 2020.
Owner Reports
A representative sample of complaints filed with NHTSA.
While backing out of steep driveway, the car computer screen blinked saying "updating" then screen went blank, lost power, I could not brake. We have a row of trees at the back of our driveway that stopped the car ( with damage) or else ...
On numerous occasions the transmission does not fully down shift to the next lower gear and then when I have to accelerate quickly it will drop down to the lower gear like it’s supposed to but won’t shift out to the next higher gear...
WHILE IN MOTION ON A HIGHWAY IN STOP AND GO TRAFFIC, CAR SHIFTED ITSELF FROM DRIVE TO NEUTRAL WITHOUT ANY DRIVER INPUT. ALL INDICATOR LIGHTS ON DASH TURNED ON. DRIVER UNABLE TO SHIFT FROM NEUTRAL BACK TO DRIVE TO REGAIN CONTROL OF VEHICL...
REAR DIFFERENTIAL AXLE SEALS WERE DISTORTED, CAUSING FLUID TO LEAD OUT. THE SEALS APPEAR TO HAVE BEEN INSTALLED INCORRECTLY WHEN THE CAR WAS MANUFACTURED. SEALS HAVE BEEN REPLACED PRIOR TO ANY ADDITIONAL PROBLEMS WITH THE VEHICLE OR DRIV...
When I attempt to shift from park to to drive or reverse or even neutral the car wont respond. this has happened a couple of times in the last two months. I press on the brake in order to shift and it wont respond to any commands . I t...
My 2017 Mercedes-Benz GLS 450 is experiencing serious and unpredictable transmission behavior related to the valve body and shifting mechanism. The transmission sometimes fails to engage Park, shifts on its own without driver input or at...
While driving it goes to neutral by it self
REAR AXLE LOCK UP BRIEFLY MADE A SOUND LIKE SOMEONE REAR ENDED THE CAR AND SNAP THE LEFT SIDE REAR CV AXLE. VEHICLE IS AWD AND DOES NOT MOVE ON ITS OWN POWER.. SHOP TOW SUV AND ON THE AIR FOUND THE AXLE INNER JOINT JUST SPINS BUT CAR DOE...
I FOUND OUT THAT ONLY ON 2018 MERCEDES GLS MODELS, THE CAR LETS YOU TURN OFF THE ENGINE WITHOUT A WARNING AND PUTS THE CAR IN NEUTRAL AUTOMATICALLY. IT DOES NOT PUT THE CAR TO 'P' OR GIVES YOU A WARNING SAYING YOU NEED TO PUT THE GEAR TO...