[chipo]

Hello folks, I recently posted here about the D/S mode not working. Based on diagnostics and advice from my mechanic, I replaced the Steptronic Gearshifter assy but I did not fix the issue. Running out of ideas, anyone else had the same issue before?
https://xender.vip/
2011, E90, 328i

[PhaceN52]

Damn, after that there's the transmission control unit that's bolted directly on the valvebody inside the gearbox, maybe before thinking about replacing it, which involves coding the tcu to your car, maybe you can try to reflash every module

[PhaceN52]

I don't have ista here only inpa so no wiring diagrams, it should help being able to locate where does the transmission tcu connects to the car via the mechatronic connector on the gearbox, it could be also that

edit: ok found a pic, it goes directly to the dme



can you ping/read errors on the gearbox with inpa?

[Cloverdale]

I just remedied mine (broken wire).