Bad Switch/Blower Motor Resistor Assembly May Cause Inoperative Heater Blower Motor on Mercedes-Benz 300SL

Problem Description and Possible Solution

Other than a defective motor, a bad switch or blower motor resistor assembly can cause an inoperative heater blower motor.

Problem Data
RepairPal Verified
Average mileage: 96,666 (67,000–115,000)
4 model years affected: 1990, 1991, 1992, 1993
7 people reported this problem
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Blower Motor stopped working