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

[Jeff Pereira]

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