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      10-12-2012, 05:01 PM   #17
m3an
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Drives: M3
Join Date: Oct 2010
Location: South Florida

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it shouldn't make an issue at all. Your tightening the bracket for the channel not the door panel or wipe that passes it. I see these loosen up over time on BMW in general and have pulled the door panels and tightened up w/ no issues