loud screeching/glass broken noise. one side opens and closes with noise. other side opens but won't close, have to manually raise it. Is it regulator or motor?
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2001 BMW 330i Question: power windows issue
Answer #1matte July 20, 2009, 13:43Master
In these cases, it's almost always a problem with the regulator. Problems with the motors are more uncommon. The labor to replace is very similar, though. If it's a problem with the motor, you will be out the additional part cost.
Answer #2Visitor, June 04, 2010, 11:51
These cars have a little plastic guide that breaks and sometimes causes the window to exhibit these problems.
Answer #3Visitor, September 14, 2010, 20:37
I just experienced this problem a week ago, it was a pulley that was broken.