Your Real Estate Professionals In Spain
Audifans.net: Audi Forums

www.audifans.net :: View topic - voltage stabiliser?
 
 Forum FAQForum FAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
View next topic
View previous topic
Post new topic   Reply to topic
Author Message
KernowAudi
Audi Nut



Joined: Jan 29, 2014
Posts: 54
Location: St Mawes, Cornwall.

PostPosted: Fri May 16, 2014 8:30 pm Reply with quote Back to top

Ok all you Audi experts, I'm on the scrounge again for your advice and guidance

Recently purchased a high miler Coupe Quattro , 1985, 171700miles, and its just passed its MOT if you were wondering. Goes very well....so far!

However, one niggling problem is that the water temperature gauge never gets past the 'C' mark whilst the fuel gauge will only read up to about two thirds full when the tank is in fact completely full up. I'm suspecting the voltage stabiliser as it has a common link to the two instruments.....but I'd appreciate any other opinions. Incidentally, the cars fan runs when the engine is idling so it IS getting hot and I have replaced the temperature sender on the block.

Central locking is an issue for another day!! Rolling Eyes
 
View user's profile Send private message
Mikes2
Site Moderator
Site Moderator



Joined: Jan 31, 2003
Posts: 9127
Location: Polmont

PostPosted: Sat May 17, 2014 7:40 pm Reply with quote Back to top

sounds like the stabiliser.

The KV Coupe quattros do tend to run hot. Mine always did

_________________
Mike

________________
http://www.s2-audi.co.uk 
View user's profile Send private message Visit poster's website MSN Messenger
KernowAudi
Audi Nut



Joined: Jan 29, 2014
Posts: 54
Location: St Mawes, Cornwall.

PostPosted: Sat May 17, 2014 7:48 pm Reply with quote Back to top

Thanks for that Mike, at least the local Audi garage reckons they can supply a suitable part, so we will see. Getting very hard to find most of the Coupe bits, more especially as some of them seem to be shared with the UR quattro.
I saw an earlier remark of yours about pouring money into the cars....I'm beginning to agree with you , but have to offset it with the excuse..."it's a harmless hobby" !!
best wishes, Smile
 
View user's profile Send private message
KernowAudi
Audi Nut



Joined: Jan 29, 2014
Posts: 54
Location: St Mawes, Cornwall.

PostPosted: Thu May 22, 2014 3:35 pm Reply with quote Back to top

Cam belt and tensioner just replaced along with water pump and thermostat. Also now done the Voltage stabiliser , plus the smaller water temperature sender just above the thermostat housing.....and still not getting correct indications of temperature on the gauge. Also fuel indications way too low for amount of fuel in tank ( almost full in reality ) Where to go next?
I suppose the whole of the dashboard printed circuit could be suspect? Any other ideas from the learned ones please ?
 
View user's profile Send private message
KernowAudi
Audi Nut



Joined: Jan 29, 2014
Posts: 54
Location: St Mawes, Cornwall.

PostPosted: Wed Jun 11, 2014 9:01 pm Reply with quote Back to top

Just in case anyone has any new ideas..... the water temperature gauge is driving me nuts....it certainly is registering , but the pointer never gets anywhere near the middle of the scale, even though I know the engine is fully warmed up, even to the point where the fan kicks in. Max deflection of the pointer is about a quarter of the way up from the bottom. So any bright ideas please ?
Water pump replaced, thermostat replaced, temperature sender replaced, voltage stabiliser replaced. Anyone got an old mark 2 audi 80 instrument cluster as I'm now down to thinking it is the gauge itself ?

Good news was the central locking problem turned out to be a broken wire in the harness where it goes through the door into the car interior , just for the record.
 
View user's profile Send private message
Tim80Quattro
Audi Nut



Joined: Mar 22, 2003
Posts: 93
Location: UK

PostPosted: Sat Jun 14, 2014 10:19 pm Reply with quote Back to top

My 80 quattro's dash does something similar to this but intermittently - from time to time the temp & fuel gauges both sink down, but both return to normal after switching it off & on again. Presumably it's a bad connection somewhere but is very hard to trace as it immediately cures itself. Have you checked all the dash connectors?
 
View user's profile Send private message
KernowAudi
Audi Nut



Joined: Jan 29, 2014
Posts: 54
Location: St Mawes, Cornwall.

PostPosted: Sun Jun 15, 2014 7:45 am Reply with quote Back to top

Thanks for the reply and ideas.

Over the years of owning Audis of one sort and another, water temp gauges and their indications have been one of the most common recurring problems I've experienced from way back in the mid '80's to recent A4 Avant TDI 3.0

Variety of reasons but the older ones did seem to suffer with a breakdown of solder on the printed circuit. However, this Audi has a plastic sheet printed circuit as I'm sure you know, and not being very electrically skilled, not too sure how one tests resistors, and continuity of these printed circuit sheets. The problem with your car does sound like a poor connection from the ignition supply though.

Ah, the delights of old cars eh?
 
View user's profile Send private message
Display posts from previous:       
Post new topic   Reply to topic

View next topic
View previous topic
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You can attach files in this forum
You can download files in this forum


Forums ©