BMW 3-Series (E90 E92) Forum - View Single Post

NTXE92 · 02-02-2013, 02:30 AM

Just spray some brake cleaner on different areas and listen for change in RPM. If you still can't find it you can go to guitar center and buy one of those cheap smoke machines.

02-02-2013, 02:30 AM	#4
NTXE92 Enlisted Member 0 Rep 36 Posts Drives: 2009 335i Join Date: Jan 2013 Location: Plano iTrader: (0)	Just spray some brake cleaner on different areas and listen for change in RPM. If you still can't find it you can go to guitar center and buy one of those cheap smoke machines.
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