Water From Clogged Sun Roof Drains May Damage Control Modules on Audi A4 Quattro

Clogged sunroof drains can allow water to enter the interior and accumulate under the carpet where various control modules are mounted. Over time, the accumulated moisture can damage the control modules.

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Average mileage: 85,250 (48,000–113,000)
9 model years affected: 1998, 1999, 2000, 2001, more2002, 2003, 2004, 2006, 2009
13 people reported this problem
2 people shared problem details
had this issue. Have a problem now with my PDC, which is working intermittently. Also my speakers are cracking. Water ran over the amplifier and the satnav in the rear of the car.
Not fixed. Water accumulating in the rear passenger floor board.
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