My 2017 E300 moves while in park. I am not referring to the initial movement once in park, I am talking a continuous movement every 20-30 seconds. When I park in my driveway and put it in park and remove my foot from the brake, it will move back about an inch. Then in 20-30 seconds another inch or two. It will continue to do this until I set the parking brake. It is at the dealership and they say it is normal, but no car I have ever owned rolls in park. I have owned this car for 4 years and this problem started about 6 months ago. They replaced the valve body mechanism which is on the outside of the transmission. Everyone I have spoken with outside the dealership says the park pawl is worn or broken. The car is under warranty until May of this year and mercedes USA says there is nothing that can be done. Please offer whatever advice you can. I feel like I am stuck with a great car and bad transmission that is about to have it's warranty expire.

 

My 2019 E450 when put in park does not move. In fact the opposite: I was on a ski trip, left my car in park outside for 2 weeks. I did not put on the parking brake. When I came back, started the car and put in in reverse, the car would not move: it was as if the brakes had seized to the rotors. For the next 40 miles each time I applied the brakes it was as if there was a high spot on the rotor: probably rust.

I also believe that when you put the car in park, the rear brakes which are electrical are engaged. As I said, although I never use the parking brake, when I put my car in park, it does not move - I believe the rear brakes are engaged.

Hope this helps.

 

Ask your dealer's service manager if stupid is normal.

 

Then why won't they fix that? Are they claiming that won't fix the problem? Can a client/consumer go "above" the dealer if they are not satisfied? Thanks.

 

They claim it is normal. I am in conversations with MBUSA and they seem to be backing the delaer.

 

Ask your dealer to try it on another e class, see if it does the same.

 

best advice. Will do this week.

 

It is a safety defect. Complain loudly!