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Car Forum / Mercedes-Benz Cars / April 2005

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92' 190e instrument cluster problem

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spaluck - 14 Apr 2005 03:08 GMT
About a month ago all the lights went out for my instrument cluster as well
as my radio and climate control. I tried adjusting the dimmer to no avail
and the fuse is good. Today when is started my car i have three gauges and
one of them is not working (Fuel level, oil pressure, and engine temp.) Has
anyone ever heard of this problem and know of a quick & cheap fix?
Martin Joseph - 14 Apr 2005 05:22 GMT
> About a month ago all the lights went out for my instrument cluster as well
> as my radio and climate control. I tried adjusting the dimmer to no avail
> and the fuse is good. Today when is started my car i have three gauges and
> one of them is not working (Fuel level, oil pressure, and engine temp.) Has
> anyone ever heard of this problem and know of a quick & cheap fix?

1) replace the fuses.  Don't look at them, replace them.  Sometimes
even though they look good or even ARE good,  removing them and
reinstalling can clean the contacts.

2) Does your car have an overload protection relay?  I don't know, but
it's a thought.

Marty
spaluck - 15 Apr 2005 18:17 GMT
I replaced the fuse even though it looked good and it worked thank you. I
still am unable to get my instrument cluster lights to work. Are their any
more fuses in the car? And i am not sure if i have a protection relay, i
will try contacting the dealership.
Tiger - 15 Apr 2005 22:54 GMT
Instrument cluster is most likely to be your rheostat that is bad... or the
bulb... so you need to pull out the cluster.
spaluck - 19 Apr 2005 04:55 GMT
Thanks for replying question
1.) What is the rheostat and where is it?
2.) The climate control light and stereo light went out at the same time
they couldn't be all on the same bulb right?
3.) Someone told me it has fiber optic lighting so i'm confused.
Tiger - 20 Apr 2005 15:07 GMT
1. Speedometer cluster light is controlled by rheostat... like a dimmer...
it is one of the two knobs on the cluster... turn to far right for the max
brightness... sometime in this rheostat... the wire break (dimmer control
part)... so you have to change it out.

2.Climate control light is has its own bulb... the rest of the center
console controls are lit by one bulb via fiber optic... you know... sunroof,
windows, gearshift, etc.

3. Radio has its own light bulb... not replaceble though... I am thinking
there must be another fuse that light up your speedo cluster, climate
control and radio... go wiggle all the fuse lose in the fuse box... roll
them around to knock off the corrosions.
spaluck - 21 Apr 2005 04:51 GMT
Thanks i'll try that
Tiger - 14 Apr 2005 14:00 GMT
Replace the fuse... don't just look at it.
r parris - 23 Apr 2005 04:09 GMT
 
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