Re: 1991 TQW: Audi parts sticker shock and instrument cluster

["Fred Munro" <munrof@isys.ca>]

-----Original Message-----
From: DFAUTOHAUS@aol.com <DFAUTOHAUS@aol.com>
To: schulz@iatcmail.ed.ray.com <schulz@iatcmail.ed.ray.com>
Cc: quattro@coimbra.ans.net <quattro@coimbra.ans.net>
Date: Tuesday, February 09, 1999 11:01 AM
Subject: Re: 1991 TQW: Audi parts sticker shock and instrument cluster


>In a message dated 99-02-03 08:51:37 EST, you write:
>
><< , repaired the
> intermittent instrument panel,  >>
>we have a 91 200 q that on occasion when the headlights are turned on, the
>directional and hi beam indicator lamps come on and the speedo illumination
>does not. Kinda reminds me of a 73 volvo that did that except if was
corrected
>by a judicious slap of the dash. Anyone BTDT? Help is appreciated.
>
[snip]

    Yes, I had exactly the same problem on my '91 200q, right down to the
dash thump temporary cure. I tracked the problem down to a bad solder joint
on the lower speedo connector block - these are the green blocks on the main
instrument panel circuit board that look like PC two-pin jumper blocks. The
solder joint which connected the block to the main board was bad. It looked
OK, and it had obviously been resoldered once, but a process of elimination
fingered it as the culprit and I haven't had a problem since I resoldered
both blocks. I recently saw an Audi TSB on this repair as a cure for
intermittent speedo operation on '89 - 91 100/200 models - it also seems to
affect the high beam/turn signal indicators and the inner dash lights, but
only when the headlights are on.

HTH

Fred Munro
'91 200q  268k km