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      04-19-2010, 11:30 AM   #40
BMRLVR
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Drives: 2011 E90 M3,1994 Euro E36 M3/4
Join Date: Apr 2006
Location: Fort McMurray, Alberta, Canada

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Quote:
Originally Posted by AMPowerJ View Post
It isn't the compressor. This happens with the A/C off.
Even with the switch in the off position the compressor will still run but is not used for cooling, it functions as a dehumidifier to dry damp air before it enters the cabin. Also the AC runs anytime that the windshield defrost/defog is on.

Pull the fuse for your AC compressor or unplug the clutch on the compressor itself and I guarantee it will no longer do what you are describing.
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