Temperature gauge problem - 90 Quattro B3

Ecosse · 28-01-18, 05:18 PM

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 !

mikes2 · 29-01-18, 01:25 PM

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.

Duffy3074 · 29-01-18, 04:29 PM

Mine did the same when I fitted it, the connector at the rear of the gauge turned out to be faulty

29-01-18, 01:25 PM	#2
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	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 1991 90 quattro

29-01-18, 04:29 PM	#3
Duffy3074 4 ring whore! Classic Audi Club Member Join Date: Aug 2015 Location: Dalgety Bay, Fife Posts: 2,078	Mine did the same when I fitted it, the connector at the rear of the gauge turned out to be faulty