Audi 200 1991 10v tqm

[Hayes Myers]

Thanks for the writeup.  ...looks like I don't have to remove the steering
wheel.. (althoughmine does not tilt etc).

Appreciate your help,
Hayes


-----Original Message-----
From: Robert Myers [mailto:bob at chips-ur-s.com] 
Sent: Monday, December 15, 2008 4:10 PM
To: Hayes Myers
Subject: Re: Audi 200 1991 10v tqm



Yes, you are most likely correct about the cause of your instrument 
problems.  It can be a royal PITA to find the exact cause but it 
likely lies in a poor solder joint inside the instrument cluster (IC).

Create as much space for yourself in behind the steering wheel and 
the IC.  Does your car have a tlit/slide steering wheel?  If so make use of
it.

Pull the IC - 3 or 4 screws accessed from low down at foot level and 
then looking upward at the under side of the trim strip at the lower 
edge of the IC.  Remove the screw and then pull the trim strip 
out.  This exposes 3/4 screws at bottom edge of IC.  Remove 
them.  Now slide the IC out of the dash far enough to allow you to 
tilt the IC toward you at the top so you can access the several 
wiring harnesses back there.  Each has a simple locking mechanism 
which you need to figure out.  Disconnect all cables.  Now slide the 
IC out by taking it in the general direction of the RF door 
window.  Now you can work on it at your work bench or the kitchen table.

Expose the motherboard by removing the white plastic covers and find 
the long wires connecting the speedo and/or tach to the 
motherboard.  Look for something loose/separated/cracked/whatever...

 From here you are on your own.  Good luck.

Bob




At 03:19 PM 12/15/2008, you wrote:
>Speedo gauge works intermittently, sometimes it bounces..sometimes it is
>dead on the speed.   Tach is much worse.mostly not on at all.  I gather
this
>is typically solder joints on the gauges?  Is this correct?  Will I have to
>pull dash to get cluster? Do ihave to pull the steering wheel? (I am now
>beyond afraid)
>
>
>
>Thanks!
>
>
>
>Hayes Myers, P. Eng
>
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