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Re: Heat/AC/Fresh Air Flap

If your talking about the fresh air inlet valve under the thin plastic cover
at the base of the windscreen.....   normally it's open to let fresh air
into the interior, it closes when the A/C is on to prevent humid outside
are from getting inside. Working from memory here, I think it's vacuum
controlled by a electrically operated valve mounted on the ducting there
under the hood. Might be the same as the 4000/4000 Quattros?