o.k., fine:
first of all you need the tech information, download the 61.14MB here, second from left on top
http://luuk.xs4all.nl/bmwboeken/
Then go to my website below, scroll down, there is a link to european transmissions website, read all that.
wiring diagrams by year
http://shark.armchair.mb.ca/~dave/BMW/e34/
Do you have the gear and mode indicated in the dash cluster?
Must be, otherwise clean the switch under the handle.
But to that later or visit the website of Gale, link on my website too.