Question about 2002 Audi S8

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Audi S8 Airconditioning

When the aircon. is in use the drivers and passengers footwell fills with water. Should this water not be emptied via a hose or small pipe to the
outside of the car ?

Many thanks, John Freiberg.

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  • jcrfry Aug 22, 2008

    Job successfully done. Many thanks.
    John

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  • Audi Master
  • 19,396 Answers

The water is probably condensing on the outer pipe, and then following a pipe and dripping inside the car from some bad insulated gasket.
There is also a drain hose for the AC that must be checked.
You must individuate where water comes from and re insulate gasket or clean drain hose.

Posted on Aug 20, 2008

  • Ginko
    Ginko Aug 20, 2008

    To clean drain lines and hose you
    can insert a flexible wire with a
    small hook on the end of the drain tubes to
    clear any obstruction. This usually has to be
    done accessing the drain lines underneat the car.
    If you haven't done this before I suggest taking the car to a mechanic, as you can damage your AC system quite easily.


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1 Answer

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Solution to 1. is likely to be a crack in the expansion tank. This happens often with these tanks. Look under the cap and you'll find two necks. The narrow one is the pressure tube that the lid seals in to. Check the narrow neck for any cracks and check the pressure cap o-ring for condition. Replace both if suspect. They're cheap from FCP Euro or ECS tuning.
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