S320 w221 gearbox issue
Thread Starter
Newbie
Joined: May 2020
Posts: 4
Likes: 0
s320L
S320 w221 gearbox issue
So got my car back today from repair shop. Car went in with P2716 error code in tcm.
Mechanic advised to replace tcm module as it was unrepairable.
He ordered new VGS3 TCM plate and i think he scn coded it and did road adaptations.
He did not copy anything over from my old tcm plate as he said online coding is enough.
After recieving my car back now it jolts hard in 1-2 gear change and little in 2-3. Massive jolt in 3-2 gearchange and jolt in 2-1. Feels like someone back ended my car when it jolts.
Driving on highway seems to be okay, with no noticable problems, however in city traffic jerking and jolting is big issue...
As plate was new, does valve flow data need to be transferred from old VGS2 plate ?
My mechanic said just drive it and see what is gonna happen in few weeks. Also he said there is special thicker “repair” oil he wants to put in gearbox and he thinks that gearbox is loosing pressure thats why its jolting.
before tcm replacement car was driving fine...
Mechanic advised to replace tcm module as it was unrepairable.
He ordered new VGS3 TCM plate and i think he scn coded it and did road adaptations.
He did not copy anything over from my old tcm plate as he said online coding is enough.
After recieving my car back now it jolts hard in 1-2 gear change and little in 2-3. Massive jolt in 3-2 gearchange and jolt in 2-1. Feels like someone back ended my car when it jolts.
Driving on highway seems to be okay, with no noticable problems, however in city traffic jerking and jolting is big issue...
As plate was new, does valve flow data need to be transferred from old VGS2 plate ?
My mechanic said just drive it and see what is gonna happen in few weeks. Also he said there is special thicker “repair” oil he wants to put in gearbox and he thinks that gearbox is loosing pressure thats why its jolting.
before tcm replacement car was driving fine...
MBWorld Fanatic!
Joined: Aug 2014
Posts: 5,322
Likes: 1,678
S500
just drive it, it will probably rebuild its fill time adaptions and settle down.. "real adaptions" on how the box works, not poorly named adaptive change point (stupidly based on how you've been driving)
