aircon question

[Simon Allcorn]

Hi,
	The air-con (not climate control) on my 92 80 q (2.8) doesn't work.
When I press the A/C button the light comes on but that's it. Can anyone
tell me if:

Should the engine idle speed drop when the A/C is switched on ? 
Mine does not but I'm not sure if this is a problem given it's a 2.8 (i.e. a
fair amount of torque) but I suspect it should since it will be running very
lean at idle.

Where is the A/C compressor ? 
I think it on the bottom of the engine below the battery - nice and easy to
get to !

How can you tell if the magnetic clutch is working or not ?
Is it a simple case of short 2 wires to test the clutch works ?

Any leads on how to fix this would be appreciated.


Simon


It's amazing what some hot weather will do :)



> -----Original Message-----
> From:	Nieuwland Andre [SMTP:nieuwlan at natlab.research.philips.com]
> Sent:	Monday, July 30, 2001 8:16 AM
> To:	v6-12v at audifans.com
> Subject:	[V6-12v] Re: flap motor
> 
>  > From: "Paul Giacco" <PGiacco at nationallife.com>
>  > To: v6-12v at audifans.com
>  > Subject: [V6-12v] Heater Probs - 92 100CS Quattro
>  > 
>  > I have a 1992 100CS Quattro.
>  > 
>  > I have a code coming from the climate control that indicates "flap
> motor" problems. The motor seems to be "sticky".
>  > 
>  > Does anyone know where the flap motor is located? I believe it's under
> the hood, under the black plastic panel at the firewall. I think it's on
> the right side??
>  > 
>  > Can I change that motor myself? Is there anything tricky about the
> removal and install?
>  > 
> 
> Hi Paul,
> 
> I guess you get error codes on your climate control for channels 11, 13,
> 15. (central flap motor, footwell/defroster flap motor and air flow flap
> motor respectively)
> 
> These parts are located behind the center console in the middle of dash.
> To reach the motors, you have to renove the glove compartment, Than you
> can
> allready see the footwell/defroster flap mechanism. You also have to
> remove
> the kneebar on the driver's side, and also the plastic cover of the centre
> console. (for that you have to remove your climate control module, and
> probably some parts of the shift stick/automatic transmission lever). 
> 
> The problem is likely to be either dirty contacts of a potentiometer,
> measuring the position of the flap (contact spray will do), or the
> mechanism being stuck (dirt ?)
> 
> I just removed the glove compartment to fix similar error codes, and saw
> that the flap motor tries to move the footwell/defroster flap, but the
> mechanism is not co-operating. Something seems stuck. I still have to
> remove more to reach and fix it, but for the time being I have to fix (or
> replace) my ignition module (power output stage) first, which is sometimes
> not working properly. The dealer here charges US $172 for a replacement
> module, so I 'll try alternatives first.. ;-)
> 
> good luck,
> Andre Nieuwland
> 1992 100CS Quattro
> 
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