Bad Switch/Blower Motor Resistor Assembly May Cause Inoperative Heater Blower Motor on Mercedes-Benz SL500

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: 48,300 (15,000–110,000)
9 model years affected: 1994, 1995, 1996, 1997, more1998, 1999, 2000, 2001, 2002
15 people reported this problem
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Blower motor runs but shuts so after a few minutes
OK when purchased in March, 2013. One or two instances of blower malfunction (slow speed). Seems to be working at present (Aug 2013).