[s-cars] Instrument cluster removal

[Theodore Chen]

the temperature display on my '92 S4 is showing only the upper half of the digits.  sometimes the lower half shows, when the number is a 1 or 7.  i think this may be due to dirty or corroded contacts.  any idea which connector i should check?
   
  -teddy

Jerry Scott <jerryscott at wispertel.net> wrote:
  Here's a writeup that I found in my files from Frank Amoroso.
Jerry

2.0 watt bulb p/n: 893-919-040-A

The S4 IC does differ in a few details from the S6 IC, but for our 
purposes you can follow the same directions.

Start by disconnecting the battery (this is always prudent), have your 
cell phone and radio codes on hand for when you hook the battery back up.

To R&R the I/C you will need a philips head screwdriver and to swap all 
of the bulbs you will need a torx driver to open a cover panel behind 
the speedo / tach, and either a small slotted screwdriver or a 7 mm 
socket to remove the bulbs.

Telescope the steering wheel all the way out and tilt it all the way 
down. Remove the two philips head screws holding on the black lateral 
trim piece that spans the bottom face of the IC. Tilt the left side 
forward until it clears the dash face, pull it to the left (have the 
drivers door open) you will notice that the right side is held in by a 
2" pin.

At this point you have exposed the lower front portion of the IC and the 
three smaller philips screws that hold it in. Remove these. At this 
point you can gently pull the IC forward (it may take a few tries, be 
gentle. It is a Chinese puzzle of sorts) to expose the rear.

There are two large and several other ancillary wiring harnesses and 
associated connectors. Remove these, use a small screwdriver to pry 
with, if needed. Most of the connectors are color coordinated.

With the IC out and face down you will be able to see most of the orange 
base bulbs. You will need to tilt the panel behind the speedo / tach 
open to gain access to the balance of the bulbs.

I have done a '93 which required 10 bulbs and a '94 & '95 that required 
9 bulbs. Your results may vary so have 10 bulbs on hand just in case.

Rotate the bulbs a quarter turn counter clockwise to remove them. The 
new bulbs install with a quarter turn clockwise. 

The re-installation is the reverse procedure.

I have been running the 2.0 watt bulbs for abut a year without any 
problems. They are an improvement. I have the rheostat at about 90% 
intensity.

Changing these bulbs will not affect the intensity of any of the other 
dash / switch lights.

Frank Amoroso, (Technical Editor, S-Cars.org)



Wylie Bean wrote:

>Subject is a 92 S4.
>I don't have a manual for this car, but I can't believe it's too terribly 
>different from my coupe q. I have the trim piece off, and have removed the 
>screws that hold the cluster in place, but it doesn't seem to want to come 
>far enough out on the small end (pass side) for me to get behind it to start 
>unplugging wires. I can't get the big end to come forward hardly at all, 
>and don't want to tug too hard just in case there really isn't enough slack 
>in the wires back there. I have at least one bulb that's out (autocheck) 
>and want to get it replaced and make sure no others are out while I'm back 
>there.
>
>Any tips would be appreciated.
>
>Thanks.
>
>Wylie Bean
>TheRingmeister at triad.rr.com
>90 Cq
>92 urS4
>01 allroad quattro
>
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>
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