Thread: Leak inside???
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      05-03-2011, 11:59 AM   #6
dmatre
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Drives: 2011 328i Sedan
Join Date: Apr 2011
Location: OC, CA

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I'm not familiar enough yet with the E9X layout, but when our old Passat had this problem, the cause was a blocked A/C evaporator drain. There should be a rubber hose under the car which drains any condensation from the A/C evaporator. Clean this out with a long wire or use a suction bulb (better - because it pulls any blockage out, rather than pushing it up inside the evaporator).

That may resolve the problem.