iviax

The car is 2017 GLE 43 AMG. The engine light turned on two days ago. And I pulled a code P073e from the car. the message was "unable to engage reverse". Then the next thing I noticed:When I try to put the gear to D, it will automatically jump to neutral. If I continue to flick the gear lever several times, the car will start in D3, and the gear will not be lower than D3 in the following driving. Whe I completely stopped at the traffic light, it only stayed on D3 instead of D2 or D1.
It only happens randomly. Not all the time. I had cleared the code and engine light didn't turn back on even with all the failure to start from D1.

Did this happen to any of you guys before?

edit: I found one similar thread here. I hope to hear it back from you guys.
https://mbworld.org/forums/e-class-w...nsmission.html

W205C43PFL

When was the transmission fluid last changed?

iviax

i checked the record it was done during the 60k miles service. The current odometer is 70k.

W205C43PFL

Where was this done? The fluid level is crucial to transmission operation, too much or too little could results in symptoms you are experiencing.

iviax

it was done at the MB dealership roughly a year ago. This issue just occurred recently.

iviax

I wanted to provide an update on the fix. The mechanic successfully repaired my car by replacing the valve body of the transmission. Apparently, all the electrical components, including the transmission control unit/module, are housed within that valve body. It's unclear what caused the module to malfunction. After inspecting the fluid and interior of the transmission, no dirt or metal shavings were found. The total cost came to $3k, which included replacing the main battery.

I hope this helps for anyone who might have this happen to his/her Mercedes.

W205C43PFL

So sorry I missed your reply to my post : (

Glad to hear that it is fixed!

S Naqvi

I have a GLS, same problem, same suggestion, they are charging me $4000 (just for the valve body and oil), this is after they came down from $5500.

How is the car running after the repair?

iviax

The car runs like a brand new car after the repair. The valve body replacement fixed it completely. MB dealership price is a ripoff.