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cheshirecat · 10-18-2012, 07:45 AM

Search for "high pitched noise", there's several threads about it. Try to see if you can isolate the location. As you have a 2009, read up on the ECU whine in particular.

10-18-2012, 07:45 AM	#2 (permalink)
cheshirecat A True Z Fanatic Join Date: Jan 2009 Location: Florida Posts: 1,428 Drives: N54 135i Rep Power: 293	Search for "high pitched noise", there's several threads about it. Try to see if you can isolate the location. As you have a 2009, read up on the ECU whine in particular.