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Unformatted text preview: then into the car. When the flap is down, air is blocked from going downward through the heater core, and so just old air comes into the car. Of course this flap can be in any position as the climate control computer "blends" cold air from outside with some air going through the heater core to provide whatever tempurature you've asked for. Anyway, point being that I think the flap motor you're after is the one located in the box next to the vacuum actuated heater valve. As such, it should be real easy to pop out, clean up and get working. This is where VAG-Com and the "output diagnostic test mode" comes in handy because you can actuate each of these motors and then stand there and watch them work (or not). The climate control unit can do a self diagnostic and show you it's own fault codes. I think there's a page on how to do this on 12v.org or similar....
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- Spring '09