Classic Audi Technical Mech/Tech Electrical problems » Temperature gauge problem - 90 Quattro B3

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Old 28-01-18, 05:18 PM   #1
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Default Temperature gauge problem - 90 Quattro B3

Hi - having now managed to get my non starting project 90Q running reasonably I have turned to other faults ( there are lots of them ! )
One is really bugging me - the temperature gauge doesn't read - needle doesn't move . I have read a lot about dashboard problems and hoped to have cracked this but no !
I have - replaced the temp sensor on the elbow off the head / temp gauge / voltage stabiliser ( the petrol gauge didn't work either but does now ) / taken the dash instruments apart and re soldered the rings holding the gauge to the board and re soldered most of the other visible joints.
No luck .
Before I buy an EBay complete replacement binnacle - any ideas please !
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Old 29-01-18, 01:25 PM   #2
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Location: Polmont
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if you ground the wire for the temp sender with the ignition on, the gauge should move all the way across - that will confirm the gauge is ok.
1991 90 quattro 20v sport
1993 S2 estate
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Old 29-01-18, 04:29 PM   #3
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Mine did the same when I fitted it, the connector at the rear of the gauge turned out to be faulty
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