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Old 01-27-2013, 09:28 PM
CALLAWAY845 CALLAWAY845 is offline
Officially Welcomed to the 'Fest
Location: phoenix
 
Join Date: Mar 2007
Posts: 276
Mein Auto: 2007 x5 3.0...2009 328i
The special smoke is a dye that they inject into your AC system, and it is detectable with a "sniffer" This is the gold standard for diagnosing these things...(not the speak for CWB, as I am sure he can elaborate on this issue)
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