I've been advised by mechanic that the pump system on the w108 is worthless and I should install an electric pump. I think I'll buy a universal pump from the auto parts store and hook it up.

I think that I'm going to hook it up the the switch on the foot pedal. My question is the wiring. I assume that when the switch is activated it completes the circuit and causes the wipers to activate. Does anyone have any suggestions on how I should wire it?

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1982 300SD
1967 250S
...what was I thinking......