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Same Problem

Same problem with my 2002 Allroad in Oct 2009. The drain under the battery was clogged with pin neddles. Water built-up and poured through the AC pollen filter and into the passenger floor. I removed the seat and the carpet and vaccumed the water. One week later, the TCU let go. When I opened the TCU plastic cover, there was some remaining water. The repair cost me over $2,000. I removed the rubber gromit from the plug.
Two bad designs: 1. The plug rubber gromit. 2. The location/orentation of the pollen filter.
Let me know if someone has success in geting a refund.
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