Hello once again to the premier E34 board. It's been a while since I've posted here. I've mostly moved on to E39's, but my incredible reliable, 9/89 build 535ia w/179k developed a strange problem yesterday. I haven't come across anything similar with searches. Leaving work yesterday I held both front then rear window switched down simultaneously like I usually do to open all the windows. I got home, closed front then rear windows until motors stopped. Got out of car and found LR window only half closed. Tried to reclose from console and nothing happens. Tried to open further from console and SR opens !!! Same effect on LR door switch....close button does nothing, open button opens sunroof. All other window and SR switch work normally. Disonnecting battery for 2 hours makes no change. Any suggestions before I rip door apart looking for a wiring problem? Switch or GM problem perhaps?

Paul S
BMW CCA 69606