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Old 03-08-2013, 01:02 AM   #3
TerraPhantm
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Join Date: Feb 2008
Location: Mountain Top
Posts: 5,905
My Ride: 2005 M3 Coupe
When this happened to my parents' 330xi, the dealer ended up replacing the entire AC system. Would have been something like a $8k repair if not for our CPO warranty.

Cabin air filter is a good first place to start. If it's like the E46, it's under the hood right above the engine

Last edited by TerraPhantm; 03-08-2013 at 01:02 AM.
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