Planning the next
AO Silver Member
Join Date: May 2007
Location: United Kingdom
Looking at the photos, it looks like a phase 2 built before June 2000. As long as the car was built after May 1997 it doesn't make any difference to the following -
The window is controlled by the N82 device and it does this by current sense. i.e. it monitors the current flowing to the motor and can detect when the motor stalls at the top and bottom and switch the motor off.
The problem you have is the motor. It's current demands do not meet the stall criteria at the ends of travel so the N82 unit never switches the motor off.
You could try disassembling the motor, checking the brushes/commutator etc and try to rebuild it. Otherwise you either need a replacement regulator ( complete ) or you could just change the motor ( 156 motors are the same ). However, looking your photos there may be damage to the gear that's driven by the motor ( can't quite make it out ) so a replacement regulator may be the way to go.