Mercedes-Benz 500SL Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Mercedes-Benz 500SL
Verified by mechanics, reported by drivers like you
Ask a mechanic in our community
Never overpay. Check prices with our estimator
Mercedes-Benz 500SL ProblemsBad Switch/Blower Motor Resistor Assembly May Cause Inoperative Heater Blower Motor
Other than a defective motor, a bad switch or blower motor resistor assembly can cause an inoperative heater blower motor.
Ports in the cylinder head related to the emissions air injection and EGR systems can clog; the cylinder head should be removed and the ports cleaned.
A faulty mass air flow (MAF) sensor can cause erratic/rough engine operation and fuel economy issues. Since this sensor measures the actual amount of air entering the motor, when it fails, the engine control module (ECM) takes the wrong information and delivers incorrect volumes of fuel to the cylinders.
Mercedes-Benz 500SL Questionswhere can i get a lighted star for my grille? (1 answer)
All of my interior dashboard lights are not working but the fuse is fine. Any suggestions?
I have a 1976 450-SL that came out of 7yr storage. The oil, gas, plugs, antifreeze looked great. I hooked up a battery and it started right up. I let it run 5 or so times, 30min at a time each week. The last time I started it up I forgot I left it running say an hour or so. When I remembered I fo...