[TassieBMW]

Following a cold start, my DCT is reluctant to shift up gears, and holds onto 1st, 2nd and sometimes even 3rd until 3k rpm or so. This annoys me as we all know high revs when cold isn't how you should look after an S65.

Is this normal behaviour, or just my car?

I just completed a full DCT service and re-calibration with ISTA in the hope that it may help, but alas, the car still drives the same. The condition of the oil was very good and inside the transmission was spotless, looked brand new.


I hear GTS DCT software can improve drivability. Is this issue potentially something it could solve?