Anyone have their tach jump all over the place when cranking? What causes this? How do you fix it?


Dann
'81 300sd

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dan

Dann, Had that happen on my 1982 300D when it was running also. Repair was to resolder circuit board on the unit found on the drivers side wheel wheel. I can give more detailed info if you like.

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Richard Seaman
1982 300D Turbo 198k
1987 420SEL Sold
1993 400SEL 123k
MBCA Desert Stars

I would like that information as well if possible.

Thanks

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83 300TDT BROWNBENZ
04 Sprinter

Do a search on cigarette butt for more info on bouncing tachs.

Sixto
91 300SE
81 300SD