Well I am pretty sure its the regulator mechanism.. this guy which sits right on the fan itself and its specific to 94 and 95 models

1995 Mercedes-Benz C220 Base Sedan - Heater System - Page 2

I measured voltage at the four pins going in to it. I get one ground, two hot, and a lower voltage which varies with each different fan setting but I get no sign of life from the fan. When I jumper the fan motor directly, It spins like a mofo so we know the fan will spin up just fine if told to do so. Its got to be it, right?
Thanks again! Opossum

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