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Old 10-13-2012, 11:10 PM
paperplane94 paperplane94 is offline
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Location: Los Angeles, CA
 
Join Date: Jan 2012
Posts: 929
Mein Auto: 1989 525i M20B25
The grinding noise is most definitely from your actuator. There is a plastic gear in it that can get its teeth worn if it slips.

If it works Okay then I wouldn't try to fix it until it breaks, have to have another actuator on hand though. Unfortunately they don't sell the gear separately.

Even if you leave the widows open the double lock mechanism will still keep you out.
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