550i 2011 Weird Sound on cold start up?
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01-07-2013, 11:05 PM
Drives: F85 X5M & 991 GTS
Join Date: Feb 2012
Location: Kansas City / Instagram: jn991GTS
I park my car at the airport 2-3days per week. It makes the rattle noise firing up every time I get back. To me, it sounds more like pulley bearings (not turbo charger).
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