Thread: Rattle noise
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Old 01-15-2013, 12:01 AM
sptt144 sptt144 is offline
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Location: Orange County, Ca.
 
Join Date: Aug 2012
Posts: 1,157
Mein Auto: 2009 335i
Those are your wastegate actuators if you have a 335. The actuators (open and closing rods) are loose in the gates and will rattle (search YouTube). Just had mine replaced at dealer last week. They have newer upgraded parts. Now I don't hear it anymore.

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