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Re: climate control out of control


It took about 4 trips to the dealership to get this fixed on my '86
when it was less than 1 yr old.  The service mgr. (Wolfgang) now works
at Anderson-Behle in San Jose.  The first 3 attempts didn't keep it 
fixed for longer than 2 weeks.  Wolfgang did lots of grumbling about
the GM climate control.  As I understood it, the system was somehow
picking up oil vapor from the vaccum system, but I may be wrong.  It's
been fixed now for 6 years (knock on wood)!

John Mc

> From hans@sequent.com Thu Mar 18 09:44:55 1993
> Subject: climate control out of control
> To: quattro@aries.East.Sun.COM
> Priority: normal
> X-Mailer: ELM [version 2.2 CRG PL14c]
> Content-Length: 1757
> X-Lines: 33
> Since a few weeks I got a problem with my climate control in
> an Audi 5000 CS Turbo '86. It works fine after a cold start.
> But if I drive for a few miles, stop the engine and restart
> it after a few minutes to continue my trip the climate control
> acts up. Although it still shows 70 F it heats up constantly.
> Even lowering the input to the minimal setting doesn't
> help the problem. I also noticed that the temprature gauge is 
> slowly fluctuating between the actual cooling temp and cold
> when the system acts up, it's constant otherwise.
> As a workaround I found: During driving turn off the ignition
> for 1 sec to reset the electrical system. This usually cures
> the heating problem and also brings the temp gauge into its
> normal operation. Sometimes it has to be repeated however.
> However once in a while when doing this the climate control
> jumps to the real temp it was trying to reach (78 F). Then all
> I have to do is lowering the input to the desired temp and 
> everything works fine.
> Has anybody else experienced the same problem. Is it just a flaky
> connector? I cleaned the connector on the climate control
> itself but without luck. Since the temp gauge is acting up
> as well I also suspect the 4 wire temp sender in the engine
> compartment. Any ideas?
> Thanks in advance.
> -- 
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>  Hans-Joachim Tannenberger               //  PHONE: (503) 578-3781
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