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      07-27-2010, 10:17 AM   #1
cv8
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Drives: 1003
Join Date: Jan 2009
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Cold Start Engine Knock / Rattle

Hi -

I have a 2007 E92 M3 with about 38000 miles. When starting the engine from cold there is a loud noise like a mechanical knocking or rattling which goes away within a couple of seconds. This has developed over the last 2000 miles.

Has anyone else experienced this?

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Last edited by cv8; 07-28-2010 at 02:38 PM.
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