Aqua-Phobic Audi (3)

Andy Schor walbum at
Tue Jul 27 14:46:07 EDT 2004

I cleaned the HVAC drain out a few weeks ago.  That was when I first 
discovered the footwell was wet, and C.E.L. would stay on while the 
car was running.  The codes have been cleared and there is now plastic 
covering the ECU and connector.  

Sunday night I parked facing downhill, it rained hard and the floor got wet.
Last night I parked facing uphill and the floor stayed dry.  Yes it
rained heavily here in Pittsburgh two nights in a row.  Anyway, the 
recirc flap sounds like a good place to start.

Andy Schor
'91 200q20v Avant

> [Original Message]
> From: Kneale Brownson <knotnook at>
> To: <walbum at>; <200q20v at>
> Date: 7/26/2004 4:24:31 PM
> Subject: Re: Aqua-Phobic Audi (3)
> There is a sunroof drain that exits into the front doorjamb.  But I'd
> that if that were plugged, the water would have come in past the sunroof
> itself, making the headliner wet.
> Have you checked the largish drain for the HVAC well under the rain
> diverter cover?  It's located near the firewall just toward the passenger
> fender from the heater core box in the center of the well.  Looks like a
> big black grommet. It often gets plugged with leaves, pine needles,
> etc.   If that well fills up from heavy rain because the drain is plugged,
> water would overflow through the recirculation door into the passenger
> footwell.

> >I went to one of those car wash places where you 
> >exchange quarters for pressurized water and 
> >sprayed away.  The floor and ECU stayed dry.
> >
> >Early this morning we got a hard rain and the 
> >passenger footwell was soaking wet.  The car 
> >was parked facing slightly down hill, if that matters.  
> >The headliner was not wet.  This time the ECU 
> >(& paper towel) stayed dry.   
> >
> >Might there be a sunroof drain tube that is draining 
> >into the interior???  The windshield had been replaced 
> >by P/O, but no water is visible around the 'shield.
> >
> >Thanks to all responders,
> >
> >Andy Schor
> >'91 200q20v Avant

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