If the window is not going up and down correctly, it's very likely that the regulator has warped or bent and will need to be replaced. It's most likely that the track guide has broken loose and will be lying on the bottom of the door. If this is the case, both will need to be replaced as well as the retainer clips and regulator rivets. The parts should be relatively inexpensive and the labor should take between 1 & 2hrs. You will need to have a riveting tool handy as well since the regulator is riveted into the door frame (as opposed to being secured by bolts).
I ordered that parts and had my technician install everything.
My total cost was a little under $250.00 with my BMW CCA discount on parts.
Here are the part numbers:
51331977609 regulator
51321938884 retainer clip (you'll need 2)
51328146243 guide (if broken)
51321960413 guide felt (if broken)
Unknown - Rivets (you'll need 4) |