have u tried jumping the window motor, to make sure that its functional... checked the normal fuses? because mine didnt work one day and it turned out to be the fuse..
e39 M5 (s62)- Muffler Delete, Timmay Tips,
e30 325ic - Hard Top, Matte Black
e36 328is - (m52)AA S/c'd, M50 Mani, 3.23 LSD, M3 Brakes, Zimmer rotors, hps pads, Racing Dynamic Strut Bar, Depos, m3 Bumper, Intake, Spal fan, poly RTABs, Eibach Swaybars, Koni yellow, Mishimoto Rad, Silicone hose, Alumi T-housing, Depo w/LED Angels, LED tails, 12' Alpine Type R, Suede head liner, LTW Low rise spoiler
92' 325is (m52) - M3 conversion AA S/c'd
'97 Euro Estroil E36 M3 Vert (S50B32)