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Sean K
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Reged: 30/07/2016
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Posts: 16
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Loc: Ireland
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Tachometer not working
[re: ]
30/07/2016 22:47
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I have just noticed that my rev counter does not operate.
How do I find the problem and what do I check / test?
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Bastian P.
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Reged: 18/08/2002
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Posts: 13274
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Loc: Österreich (Graz)
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Re: Tachometer not working
[re: Sean K]
31/07/2016 09:45
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You will have a dry joint (solder connection) in the electronics of your odometer. That's very common. There are instructions available how to re-solder it, but I'm not aware if in English as well...
Das Buch zum Audi V8
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Terry Windy
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Reged: 24/10/2013
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Posts: 13
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Loc: Bristol England
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Re: Tachometer not working
[re: Sean K]
31/07/2016 21:09
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Is this LHD or RHD ? As UK dash is from an Audi 200
If you google Audi V8 dash fault ,have look at
http://www.sjmautotechnik.com/trouble_shooting/elec.html
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Sean K
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Reged: 30/07/2016
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Posts: 16
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Loc: Ireland
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My car is a 1993 RHD vehicle
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Terry Windy
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Reged: 24/10/2013
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Loc: Bristol England
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Re: Tachometer not working
[re: Sean K]
31/07/2016 22:00
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Hi Sean
A 4.2! Have you any photos
There a few of us with Audi V8's on
http://www.classic-audi.co.uk/
And there's a couple Audi car shows
Audi,'s in the park ,Northampton on August 13/14
Audi driver international at Castle Combe October 15
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Sean K
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Reged: 30/07/2016
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Posts: 16
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Loc: Ireland
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Terry,
I dont have a good picture of my car that I can send you at the moment but attach one from a few years ago.
My car is black, has 55,000 miles and is more or less unmarked condition. I have owned it since 2008.
I have taken note of the shows and will let you know if I will be able to attend in due coarse.
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Terry Windy
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Reged: 24/10/2013
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Posts: 13
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Loc: Bristol England
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Re: Tachometer not working
[re: Sean K]
31/07/2016 23:51
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Hi Sean
Here's a link to register of UK V8's
http://www.classic-audi.co.uk/forum/showthread.php?t=35378
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Sean K
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Reged: 30/07/2016
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Posts: 16
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Loc: Ireland
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I will register now, thank you
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Sean K
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Reged: 30/07/2016
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Posts: 16
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Loc: Ireland
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I was already registered on this website.
My username is Audi V8
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Sean K
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Reged: 30/07/2016
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Posts: 16
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Loc: Ireland
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Tachometer is still not working on the car.
I have removed the Instrument Cluster (IC) and checked all of the solder connections without finding anything that looks like a problem.
Has anyone any suggestions?
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Bastian P.
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Reged: 18/08/2002
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Posts: 13274
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Loc: Österreich (Graz)
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Re: Tachometer not working
[re: Sean K]
25/06/2018 09:51
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Hi Sean,
do you have an after market sound system installed?
Regards
Bastian
Das Buch zum Audi V8
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Daniel Müller
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Reged: 10/05/2005
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Loc: Nonnweiler Nordsaarland
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Re: Tachometer not working
[re: Sean K]
25/06/2018 09:53
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On mine I also didn´t see any defect. I just resoldered everything I could and after that it all worked again.
As far as I remember it has to be that. If the sensor would be broken the car wouldn´t start.
The cold solders are a very very common problem (also on the Audi 100 etc).
So Chances are very high that this is your defect.
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Roy F
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Reged: 06/05/2006
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Loc: Schweiz
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Re: Tachometer not working
[re: Bastian P.]
25/06/2018 21:34
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Bastian, in this case tachometer means Drehzahlmesser!
In his first posting he wrote "rev counter" 
Gruess Roy
http://roy-fuchs.smugmug.com/
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Bastian P.
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Reged: 18/08/2002
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Posts: 13274
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Loc: Österreich (Graz)
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Re: Tachometer not working
[re: Roy F]
26/06/2018 09:58
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My fault...
Das Buch zum Audi V8
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Sean K
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Reged: 30/07/2016
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Posts: 16
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Loc: Ireland
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Re: Tachometer not working
[re: Bastian P.]
06/07/2018 04:31
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I have had the instrument cluster board resoldered but the tachometer still does nothing - everything else is working fine on the dashboard.
I would like to trace the wiring back to the engine sensor but I do not have a wiring diagram for the car?
Where is the ECM on the car?
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