[urq] Heating-Ventilation
Max Hoepli
mhoepli at vif.com
Tue Dec 27 14:52:43 EST 2005
When I took recirc flap off, stuck spongy molding 9mm wide around perimeter
of evap box facing inside. Was not able to find spring. Took car to mechanic
who had a spring for this application, he installed spring between plastic
arm, which was unusual since it was still intact which is between the 2
plastic arches and the hole on that plastic center of the recirc flap. The
vacuum servo was broken off from between the 2 plastic arches which are
attached to evap housing. He said I can go through the winter with this
arrangement since windows won't fog up, but in the spring will have to have
vacuum servo attached to arms or else fresh hot air will be cooled by evap
coil and take longer to cool interior of car. The vacumm hose, which is the
common vacuum suction with heater core vacuum servo was off from the
recirc/fresh air vac servo, that will have to be reattached. He fixed
problem with spring for $C20.00.
Max
----- Original Message -----
From: "Fred Munro" <munrof at sympatico.ca>
To: "Max Hoepli" <mhoepli at vif.com>; "Thomas Pollock"
<tompollock2002 at yahoo.com>
Cc: "Urq List" <urq at audifans.com>; "Quattro at AudiFans"
<quattro at audifans.com>; <w-t_audifans at yahoogroups.com>
Sent: 24, December 2005 17:32
Subject: RE: [urq] Heating-Ventilation
> Hi Max;
>
> Well, you've found where the spring should be attached. Now you need to
get
> a spring and hook it up so the door will stay closed. I'd say you've also
> found the cause of your fogging problem. The original spring should be in
> there somewhere - it can't go very far.
>
> Merry Christmas!
>
> Fred Munro
> '94 S4
>
>
> -----Original Message-----
> From: quattro-bounces at audifans.com
> [mailto:quattro-bounces at audifans.com]On Behalf Of Max Hoepli
> Sent: December 24, 2005 4:40 PM
> To: Thomas Pollock
> Cc: Urq List; Quattro at AudiFans; w-t_audifans at yahoogroups.com
> Subject: Re: [urq] Heating-Ventilation
>
>
>
> Disassembly:
>
> I have taken away the glove box, had to use a flashlight to find the 2
> Philip Screws which were on top of the glove box, then I removed a plastic
> cover with insulation on the top, this plastic cover is held on by a nut
on
> the right to same frame bracket which supports right side of glove box + a
> Philips Screw on the left screwed upwards, easy to remove. I then saw what
I
> assume is the recirculation flap. The evap coil visible behind recirc
flap.
> Vacuumed out leaf and dirt debris around evap coil.
> What is this black tube like thing hanging on the left in front of evap
> coil?
> I removed the recirculation flap unscrewing 2 long Philip Screws left and
> right. the insulation in front was intact but there is a spongy molding
> around the back edge which seems to have shifted. In the middle of this
> recirc flap there is a round plastic piece 4 cm in diameter with a rising
in
> the middle with a hole in it. I think there is the spring that should be
> attaching this part to the air recirc servo Cannot find this spring. I
> removed recir flap and cleaned it. Will put on similar molding.
>
> When I feel in behind recirc flap in front of evap coil I feel this round
> gadget which is moving but not removable, making a hollow rubbery noise. I
> think this is the air recirculation servo. What do I do next?
>
> Max
> ----- Original Message -----
> From: Thomas Pollock
> To: Max Hoepli
> Sent: 23, December 2005 21:02
> Subject: Re: [urq] Heating-Ventilation
>
>
> Max,
>
> thanks for the followup. Now to find some time... 8-(
>
> happy holidays,
>
> tom.
>
> Max Hoepli <mhoepli at vif.com> wrote:
> I received this as a good answer:
>
> Your recirc flap actuator is probably broken. This is a very well
> known problem with type 44 audi's, and is pretty easy to fix. To
> check, remove the glove compartment, and, with the car running, and
> the heat on, look up at the recirc flap. It should be pulled up,
> sealing up the opening into the interior of the car. What happens
> though is that the mount for the actuator brea! ks, and the door stays
> in the recirc position all the time. I think the dealers have a kit
> to fix this, but I did my own fix. It happened so long ago now that I
> don't remember how I did it. Also, I hear sometimes the spring breaks.
>
> Also, if you use the audifans.com web site, you'll probably find a
> more detailed write up on this issue. Many people have had this
> problems. I'd say almost all type 44 audis experience this problem at
> some point.
>
> ----- Original Message -----
> From: Thomas Pollock
> To: Max Hoepli
> Sent: 18, December 2005 17:17
> Subject: Re: [urq] Heating-Ventilation
>
>
> Max,
>
> can't wait to see what you get for responses... I just bought a
1990
> 100 (very similar system) for a new driver in the house and have the same
> issue. From past experience, it's always been either sucking moisture, as
in
> a pile of leaves/crud stuck in the intake, or no fresh air intake.
>
> I did clean a pile of crap out of mine, which seemed to help a
little
> but I'm pretty sure the real problem is I have a flap inop somewhere. I
> haven't had a chance to get a good look but I don't have an obvious "fresh
> air" or "recirc" bottom so I question how you get fresh air when temps get
> below freezing if they rely on the a/c system to get the moisture out. No
> surprise my a/c is also inop..! .. hmmm coincidence ? 8-)
>
> tom.
>
> Max Hoepli <mhoepli at vif.com> wrote:
> Hello All!
>
> I have a 1986 Audi 5000 Quattro 4 door, the heating works, it
> becomes hot inside car, though the windows can fog, especially in the
back,
> and fogs faster when there are more people inside the car. The rear
defogger
> functions, when degogger is turned off, the back light will fog, turning
the
> defogger on again, the back light will unfog. The windows have been
tinted.
> When turned on to "Auto" the vents on the left and right edges of the dash
> will unfog side windows in the front, better that center vents be turned
off
> to have more air exiting from the edge vents. At times I am driving with a
> very warm front cabin with temperature showing "HI" with outside
temperature
> of -4C but with foggy windows.
> I wonder if the vent like slots behind the! rear speakers below
the
> back light have any role in this issue of windows fogging. On the outside
at
> the bottom of C-pillar, just behind rear quarter window, there is a
plastic
> covered section, painted the same as! the body, I can peek in behind this
> vent like cover. I wonder if this has any role in the fogging of windows?
>
> Any suggestions to the solution of this fogging?
>
>
> Max
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