2Re: 91 CQ - Adjust Temp Control Flap Potentiometer - How toAccess

[Jeff Pereira]

I wish it did!!!

Unfortunately, it doesn't -- althought some -- I think the early CQs did.

I would much rather be working in the engine compartment than under the dash...


On Sun, 23 Jan 2005 08:56:42 -0500, Fred Munro <munrof at sympatico.ca> wrote:
> Jeff;
> 
> Your car may have a heater valve - an on/off affair in the coolant line to
> the heater. If it is not opening completely it may be restricting coolant
> flow. Audi used the valves on the Type 44s - I don't know if the CQ has one.
> 
> HTH
> 
> Fred Munro
> '94 S4
> 
> -----Original Message-----
> From: quattro-bounces at audifans.com
> [mailto:quattro-bounces at audifans.com]On Behalf Of Jeff Pereira
> Sent: January 23, 2005 4:01 AM
> To: quattro at audifans.com
> Subject: Re: 2Re: 91 CQ - Adjust Temp Control Flap Potentiometer - How
> toAccess
> 
> I am getting to old to be the contortionist that it takes to get to
> some areas on my car.
> 
> Damn.... That motor was way in there..
> 
> The motor itself seems a little flaky.  It doesn't want to got end to
> end all the time and it sometimes seems if it is confused.  I am
> thinking that most likely something is affecting the sensort and it
> need to be cleaned -- although I will probably just replace the motor
> as I do not want to EVER have to do this again and the motor isn't too
> expensive at $70.00 delivered.
> 
> Once the motor was removed, I was able to move the temperature
> regulation flap and it moved fine.  Unfortunately, while the flap was
> in the heat position there was not a tremendous difference in the
> temperature of the air coming through so it looks like I am going to
> have to change out the heater core which seemed like it was working
> ok, but I suspect there must be some sort of blockage that is causing
> the problem.
> 
> The good news is that it will be easier to replace the servo motor
> with the heater box out of the car.
> 
> jeff
> 
> On Sat, 22 Jan 2005 06:47:54 -0500, Robert Myers <rmyers1 at charter.net>
> wrote:
> >
> > What is the condition of the flap operating lever?  I had to replace the
> > little plastic piece to get heat a number of years ago/  The piece is a
> two
> > bit plastic part and is easy to replace once you have the required psrt.
> > Obviously I have no clue if this is your problem.
> >
> >
> > At 06:43 AM 1/22/2005, you wrote:
> >
> > Thanks for all of the good info.
> >
> >
> > I am actually there now....
> >
> > I just finished removing the footwell vents and now finally have
> > access to the three screws that hold the servo motor.
> >
> > The most frusatrating thing for me at this point is that the motor
> > does work -- I can see it moving the lever arms attached to it -- I am
> > hoping that all I need to do is adjust the potentiometer so that it
> > moves fully.  If not at the very least I hope to be able to manually
> > adjust the flap so that I can have heat.
> >
> > I did find a decent price for this part -- $63.31 from impexfap.com --
> > I tried Blau and they wanted well over $100.
> >
> >
> > On Fri, 21 Jan 2005 20:49:29 -0500, Peter Schulz <pcschulz at comcast.net>
> > wrote:
> > > also check HERE
> > >
> > > http://forums.audiworld.com/9080/msgs/248278.phtml
> > >
> > > -Peter
> > >
> > >
> > >
> > >
> > > At 08:40 PM 1/21/2005, Peter Schulz wrote:
> > > Jeff:
> > >
> > > Saw your post on audifans...
> > > Unfortunately the type 89  Audi 80/90 CQ has little in common when it
> > comes
> > > to the flap controller with the Type 44 cars, even if the climate
> control
> > > head is the same.
> > >
> > > Bottom line. its a shitty job - the center console has to come out
> because
> > > the flap controller is on the bottom, just above the transmission
> tunnel -
> > > you have to remove nearly everything, save the heater box to access it.
> > > Furthermore, the harness for the controller goes over the TOP of the box
> > and
> > > connects on the driver's side.
> > >
> > > You have two choices if you decide to get a replacement controller from
> > > Audi...cut the existing harness on the passenger side near the
> controller
> > > and splice in the new harness, or disconnect the harness on the drivers
> > side
> > > and leave it. run the new controller harness to the connector there..
> > >
> > > I helped a fellow 90q owner replace the one in his car, he gave me the
> > part.
> > >  the motor is ok, but it appears the potentiometer wore out.
> > >
> > >
> > > there are a bunch of posts in the audiworld 80/90 forum about replacing
> > this
> > > part ( use the search tool)...
> > > This is a long job however...i think that the fastest it was done was
> > about
> > > six hours.
> > >
> > > When I finally tackle mine, I'm also going to replace the heater
> > core......
> > >
> > > -Peter
> > >
> > > 1991 200 20v Q Avant Titan Grey
> > > 1991 200 20v Q Avant Indigo Mica
> > > 1991 90 20v Q Red
> > > 1990 CQ silver (awaiting S2 engine transplant)
> > >
> > > Chelmsford Ma, USA
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