Gauges

Alan · 05-07-20, 12:25 PM

Hi. My Coolant temp gauge and fuel gauge have all been tempermental.
Now they seem to have given up compleatly.
Are they linked on a relay or fuse or could it be a case of taking them out and cleaning?
Car is a 97 Cabriolet.
Thanks.

mikes2 · 05-07-20, 01:41 PM

That's often the voltage regulator.

It's a 3 leg device on the back of the cluster

Alan · 05-07-20, 01:49 PM

Thanks for the reply. Will have a look.
Am i looking for breaks etc, or needs replacing?

Sandro · 05-07-20, 07:03 PM

Replacing. One of these:

https://www.ebay.co.uk/itm/Voltage-R...6db91edf91ae2f

Alan · 06-07-20, 03:38 PM

Thanks. I have ordered a regulator.
There is a selection of them, i have ordered the 5v.
Did i make the right choice?

mikes2 · 06-07-20, 04:01 PM

Don't think that's correct

171 919 803 is the part number. Quick reading suggests it should be putting out 10v

Alan · 06-07-20, 04:28 PM

They are showing:
+9v +12v +15v -12v -15v.

So i guess i need +9v.

mikes2 · 06-07-20, 06:53 PM

I would suggest none of them.

Send me your address by pm and I'll send you one as I have spares

tractor Dave · 06-07-20, 07:01 PM

And if its the actual gauges, I have a spare set

Alan · 06-07-20, 07:13 PM

Thanks gents for the help.
PM sent.

05-07-20, 01:41 PM	#2
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	That's often the voltage regulator. It's a 3 leg device on the back of the cluster __________________ 1991 90 quattro 20v sport 1991 90 quattro

06-07-20, 04:01 PM	#6
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	Don't think that's correct 171 919 803 is the part number. Quick reading suggests it should be putting out 10v __________________ 1991 90 quattro 20v sport 1991 90 quattro

06-07-20, 06:53 PM	#8
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	I would suggest none of them. Send me your address by pm and I'll send you one as I have spares __________________ 1991 90 quattro 20v sport 1991 90 quattro

05-07-20, 01:49 PM	#3
Alan Grown up member Join Date: Aug 2010 Location: Cambridge Posts: 86	Thanks for the reply. Will have a look. Am i looking for breaks etc, or needs replacing?

05-07-20, 07:03 PM	#4
Sandro Grown up member Join Date: Feb 2011 Location: Chelmsford Posts: 651	Replacing. One of these: https://www.ebay.co.uk/itm/Voltage-R...6db91edf91ae2f

06-07-20, 03:38 PM	#5
Alan Grown up member Join Date: Aug 2010 Location: Cambridge Posts: 86	Thanks. I have ordered a regulator. There is a selection of them, i have ordered the 5v. Did i make the right choice?

06-07-20, 04:28 PM	#7
Alan Grown up member Join Date: Aug 2010 Location: Cambridge Posts: 86	They are showing: +9v +12v +15v -12v -15v. So i guess i need +9v.

06-07-20, 07:01 PM	#9
tractor Dave Senior Member Classic Audi Club Member Join Date: Apr 2018 Location: Wales Posts: 1,157	And if its the actual gauges, I have a spare set

06-07-20, 07:13 PM	#10
Alan Grown up member Join Date: Aug 2010 Location: Cambridge Posts: 86	Thanks gents for the help. PM sent.