power windows issue on 2001 BMW 330i

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?

by in Spring, TX on July 20, 2009
3 answers
ANSWER by on July 20, 2009
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.
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ANSWER by on June 04, 2010
These cars have a little plastic guide that breaks and sometimes causes the window to exhibit these problems.
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ANSWER by on September 14, 2010
I just experienced this problem a week ago, it was a pulley that was broken.

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