Does anyone know why the speedometer bounces from 0-30 mph when accelerating?

thanks

The speedo is cable driven and the cable is faulty. We sell them in the partsshop if needed.

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Benzmac:
1981 280GE SWB
1987 16V
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM

Benzmac, How do I get to the cable so I can replace it?

thanks

The cable is bolted to Trans, goes thru floor under the carpet, cliped to underdash panel & is screwed to instrument cluster. If you have confidence in removing inst cluster then other tasks are simple.

Before replacing the cable try some cable lubricant such as Kable-Ease. A good percentage of the time this will solve the bouncy needle problem. If that doesn't work you'll then have to replace the cable.