Bad Switch/Blower Motor Resistor Assembly May Cause Inoperative Heater Blower Motor on Mercedes-Benz 500SL

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: 133,666 (77,000–200,000)
4 model years affected: 1990, 1991, 1992, 1993
13 people reported this problem
Viewing 1 - 5 of 5 comments
blower does not work power gowing in and out
fan only blows slightly
my blower motor is inop
blower dead because of resistor burnout
Same problem. went on Ebay and got both. Im good now.