[200q20v] Fogging windows!!! HELP!!

[Kneale Brownson]

If it opened while heating, you wouldn't be getting as much fresh air as if 
it remained closed.  The fresh air gets shut off as the door into the cabin 
gets opened.  The door is opened by a vacuum servo, which only either opens 
it or lets it go closed under the spring's pressure.  There's no half-open 
status.


At 09:55 AM 12/20/2000 -0500, Glen Dustin Powell wrote:


>Actually, I believe it is open for heater use. It may start out fully closed
>to accelerate the warming process in cold weather on start-up, but then you
>want fresh, outside air to flush-out any moisture inside from wet shoes,
>tracked-in sno and breath moisture, be it from humans or pets. :)
>
>-glen
>
>0000
>
>
>
>-----Original Message-----
>From: Kneale Brownson [mailto:knotnook at traverse.com]
>Sent: Tuesday, December 19, 2000 4:41 PM
>To: Glen Dustin Powell; 'Tim Sidders'; '20v quattro list'
>Subject: RE: [200q20v] Fogging windows!!! HELP!!
>
>
>Actually, I believe it's only open for A/C use (A/C's work best if they're
>cooling already somewhat cool air).  I'm sure its closed for heater use
>otherwise you'd be misting up the interior all the time.
>
>
>At 08:56 AM 12/19/2000 -0500, Glen Dustin Powell wrote:
>
>
> >I think that flap varies the ratio of alleged 'fresh' Vs recirc depending
>on
> >temps, etc, and the only time it remains fully closed (recirc) is on MAX
> >A/C. (?)
> >
> >-glen
> >
> >0000
> >
> >
> >
> >-----Original Message-----
> >From: 200q20v-admin at audifans.com [mailto:200q20v-admin at audifans.com]On
> >Behalf Of Kneale Brownson
> >Sent: Monday, December 18, 2000 8:42 PM
> >To: Tim Sidders; 20v quattro list
> >Subject: Re: [200q20v] Fogging windows!!! HELP!!
> >
> >
> >
> >There's a door above and behind the glovebox that lets cabin air get to the
> >fresh air intake when the air conditioner is on.  It is closed for heater
> >operation.  Yours probably is open, meaning warm cabin air gets mixed in
> >with the air supply going to the heater core,  resulting in very moist air
> >back into the cabin.  It's probably open because the spring that holds it
> >closed has cut through the plastic bar to which it mounts inside the HVAC
> >evaporator box.  If you put your head in the footwell and look up past the
> >back of the glovebox, you may be able to see the door.  The fix is to put
> >something in there to hold the spring.  Most use a piece of tin formed
> >around the bar.  Some have used zip-ties to make an anchor for the
> >spring.  I had to take out the glovebox to have enough elbow room to get
> >it  fixed.
> >
> >
> >At 07:03 PM 12/18/2000 -0800, Tim Sidders wrote:
> >
> > >Hi all,
> > >I recently have discovered with all the snow we've been getting that my
> > >windows are always fogging. I just had them tinted and i have cleaned
>them
> > >really good once. P/O was a smoker, I know that tends to fog the windows.
> > >I don't think my heater core is bad cuz I cant smell any antifreeze and
> > >there is no film on the windows. Could this be caused by a bad fresh air
> > >vent or something. Thanks for the help in advance!
> > >
> > >Tim
> > >
> > >91 200 20v
> >
> >
>
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