I was examining my instrument cluster to figure out why only half of my instrument light were functioning. When I reassembled it my temp gauge would peak and stay there. (It would peak after it warmed up, or if I turned the lights on). I removed the dash board again and repaired a crack in the circuit board. After doing this, the temp gauges does work, EXCEPT when I use the "high beam" on the head lights. Can anyone tell me why this would only happen on the "high beam?"

Thanks, Brian

Or bad grounds

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'84 300SD sold
124.128

That is your problem. Find a used one to replace it with.

Thanks for the help. I was wondering if there was a way to attach a temporary ground to the back of the instrument cluster?

Brian, what vehicle have a bunch of cluster components for 126's that I am about ready to toss.

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00 E420
98 E300 DT
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97 S500
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86 Holden Jackaroo Turbo D
86 300SDL
(o\|/o)

I have an 1983 240D (123 series). I temporarily fixed the problem. I added a ground wire to the back of the fuel gauge and grounded it onto the dashboard sub frame where everything else is grounded. It seems to have worked. I believe it even fixed the fuel gauge which hasn't worked for years. I am hesitant to replace the instrument cluster. What do you do about the odometer reading?

Just swap the spedometers from one instrument cluster to the other.

the fure/oil/temp, spedo, and the tach or clock for the 240 are three seperate units.

Charlie ☺

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works