Thread: Bad lifter?
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      09-06-2012, 08:39 PM   #11
MilehighM3
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Drives: E90 M3
Join Date: May 2011
Location: Colorado Springs

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That doesn't sound good. Possible clutch or throw out bearing issue perhaps? Does the noise change with clutch actuation or load? Try disconnecting the coils one at a time while its running and see if the noise goes away or changes. Definitely doesn't sound like a lifter.