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RE: 90 Q temperature warning
If the A/C control unit gets the "engine overheat" signal it will shut
off A/C. I'm not sure which sensor controls the coolant warning lamp on
the 90Q, but I think this is the multi-function sensor (the fat one with
3 or 4 wires). It is possible that the wire is shorted, but these
sensors go bad often :-(
87 Audi 5000CS turbo (mine)
88 Renault Medallion wagon (mom's)
91 mountain bike (just in case both cars broke at the same time :-)
> -----Original Message-----
> From: Vlajko Jokic [SMTP:firstname.lastname@example.org]
> Sent: Friday, September 26, 1997 4:46 AM
> To: audi
> Subject: 90 Q temperature warning
> 1. Temperature warning at the multifunction display (red signal) is
> permanently ON (flashing), no matter what real engine temperature is.
> This started to happen several days after I had a real problem with
> engine temperature when cooling fan failed (connector at the fan had
> a bad contact).
> Also, a day before the temperature warning became permanent,
> air-condition failed (clutch does not engage). Does anyone can
> find some relationship between all these problems?
> My temperature warning did show up once in the past, but the reason
> low coolant level. However, coolant level is OK now, cooling fan is
> working (both speeds), engine thermostat opens at about 80 C,
> gauge shows normal temperature (usually about 90 C, when engine is
> 2. My cruise control recently quit. Any idea what to look for?
> Thank you for your time.
> V. Jokic
> 88 90 Q