I have the same problem with my 2013 ML350. Sometimes it will not move forward on an uphill after it is parked. Also, most of the time it will not back up at all if I park downhill. Yesterday it would not back up and it was making noise. I had to move forward one foot and then it engaged and it moved back. I bought this piece of crap brand new and it is terrible . These transmission problems started at 55,000 miles. Today It is about 68,000. I had another problem with the cruise control which occurred at 52,000 miles. It jerks my neck driving downhill only, steep hill. The dealership said that it was fine because they did not drive it on a steep downhill like I do. I live in the mountains of NC. My wife said that it gives her a headache; therefore, I cannot use the cruise control. I know that I have 2 fights with the dealership soon, but I do not blame the dealerships. Instead I blame the company in Germany that knows about the transmission problems since 2003 (9 model years affected since 2003) and they did not want to spend more time resolving them. 15 years later & same problems. How are they allowed to bring these vehicles with the continuous similar problems to the U.S. and then have the nerve not to admit to their failure and not to provide a recall to fix these transmission problems.??? somebody is getting paid a lot of money. I am very mad to have these problems with this expensive vehicle.
Nobody should be paying to fix the transmission at a low mileage. You should hire a lawyer. I will be doing the same thing if they do not fix the transmission problem. 81 people already reported these similar problems according to "Repair Pal website". MERCEDES should and must have A Recall to fix the transmission issues. It is a disgrace because the German engineers supposed to be great engineers.
LTC Simon Nour (Ret) U.S. Army
Last edited by simonnour; Dec 30, 2017 at 11:19 AM.