[s-cars] A/C shutting down

[Mike Claire]

I just took my new '93 S4 for a shakedown run to NYC
and back (250 miles each way).  It was over 90 degrees
and I got caught in 1 1/2 hrs of crawling traffic.

The gauges indicated the car was running hotter than
I'd seen it to date.  But it didn't look like it was
overheating.  Then the A/C shutdown - I heard the
compressor shut off.  I pushed the button to start it
again - couldn't get it to hold.  It seemed like the
computer was telling it not to run, so I shut the
ignition off and re-started the car - A/C worked!  For
about 5 minutes and then it shut down again.  This
kept happening for 1/2 hr when the traffic opened up
and the car cooled down a little.  A/C was fine for
the next 4 hours until I got home.

Is this a programmed safety override to keep the car
from overheating?  It's not as if it was 130 degrees
out.  I can't believe it would be designed to do this
in 95 degree heat - what's the problem?

Thanks
Mike


	
		
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