As the stator bush is the first thing to come out of the transmission (once the Mechatronic unit is removed) are you not tempted to have a go yourself? There’s no need to disturb the rest of the running gear – assuming there are no other issues of course. Leakage in the E-clutch supply circuit caused by this worn bush prevents the transmission selecting 4th, 5th and 6th gears.
http://www.xoutpost.com/bmw-sav-foru...-teardown.html
Rear Stator Support Bushing - 95030-01 - Sonnax
Phil