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Old 08-30-2012, 05:37 PM   #3
peytonracer4's Avatar
Join Date: Jan 2010
Location: Valparaiso, IN
Posts: 7,756
My Ride: '00 328i
Mine has a hole in the back that's spring loaded and opens if you push in on it. It's the size of a quarter. Anyone know what that is?

OP that's a drain.
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