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Old 11-17-2012, 05:18 PM
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Db750 Db750 is online now
Location: Lexington, Kentucky
Join Date: Jun 2010
Posts: 3,454
Mein Auto: 2015 M235i & 2013 M3 CP
The sensors make a clicking noise when they are working. Put your ear up to the bumper and if one doesn't make the noise it is bad or the connection is loose.

2015 M235i - Alpine White on Black
2013 M3 CP - LeMans Blue on Black

Member: BMWCCA #471614
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