Re: [MBZ] Gas gauge and temperature gauge jump up, fall back: Comments?

2009-01-19 Thread barry Stark 
Bob -
I'm guessing that Jim and Craig are right about the grounds but just in case
that doesn't help...I once found a crack in the printed circuit board on the
back of the cluster in my 107 that was doing some similar things. Easy fix,
just solder a piece of wire across the break.

Barry


 Now with everything back in, while driving, the gas gauge and temperature
 gauge will occasionally jump up and then fall back and maybe jump up again
 or jump up and down half a dozen times:  Gas goes from maybe the mark
 below full to full, temperature goes from maybe 100C to 11OC.  



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[MBZ] Gas gauge and temperature gauge jump up, fall back: Comments?

2009-01-18 Thread Robert Bigham 

Hello all

I had to replace the steering lock on my 1983 123.223. 230E gasoline engine 
102.980 in 123 Chassis, which required removing the instrument cluster.

Now with everything back in, while driving, the gas gauge and temperature gauge 
will occasionally jump up and then fall back and maybe jump up again or jump up 
and down half a dozen times:  Gas goes from maybe the mark below full to full, 
temperature goes from maybe 100C to 11OC.  Car is not overheating and that is 
for sure.  Gas tank is not being topped up and then the top up removed, again 
for sure.

It seems as it the incidents are becoming fewer and farther between.

Does anyone have a comment or something to share on this?  Why's it happening?  
If I ignore it, is it likely to go away?  Is it evidence of something wrong 
that I ought to correct?

Thanks for all your expertise; you have many more Mercedes miles than I.



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