Jerking gearbox?

[Mikehkr]

Hello, i have a 2016 cla 220d amg shooting brake, once I turn the car fully on it will sit there perking back n forth feeling like it's attempting to select gear without me doing anything, ive had the valve body replaced a gear box service and an interim service done and yet it persists...
What ive read is possible cvt or solenoids?
Someone give us a clue before I parked it in a river

 

[Boffin486]

When you say you had the valve body replaced, do you mean the contactor plate? If so, & it was done without replacing the solenoids too, maybe the problem STILL lies with the solenoids. Unfortunately, you could only find out by doing the job again with a new set of solenoids which may (or may not) fix the problem. Only a suggestion.......

 

[zipdip]

Well it is a duel clutch box I would get the ecu looked at and maybe get it reset,from your post you say just sitting there in park it is trying to select either forward or reverse,you have had the box serviced,so I think the ecu needs setting back to original settings on star or some other diagnostic make.