Subject: aalways tell us model and year/month of production Author: shogun (moderator) : member since March, 2004 : 16325 posts Posted on: 2008-10-22 00:54:48

much easier to help you.
Might be a broken wire loom from A-pillar into the door.
search produced these results
On my website below there is the link to Johan and Sean, go there and click on the left side under body, there are instructions how to remove the door panel and repair various items.
Check inside door on the motor if there is power. Check the switch connection of the main window switch.
Or do you hear a rattle? If so, the gear might be defective or the lower clips which are guiding the window rail.
Use a DMM to test.
Here are all wiring diagrams we have, select the proper one which fits your production month/year

http://www.e38.org/e32/

Window operation is controlled by the GM (general module)>RM = relay module>switch/motor or whatever comes then.
There are also fuses and relays under driver side rear seat, see the wiring diagrams from page 15 (about), they explain every detail about fuses and relays and their locations.

Wiring diagrams are there in the link under
Electronics BMW e32 Electrical Troubleshooting Manual

E32 750iL 11/88, E32 750iL Highline 03/90
7 series Tech Tips

• window won't roll down - voodoomarie 2008-10-21 13:10:15 (262 views)
  • aalways tell us model and year/month of production (url) - shogun 2008-10-22 00:54:48 (273 views)
    • Re: aalways tell us model and year/month of production - voodoomarie 2008-10-22 08:19:50 (208 views)