1993 Mercedes-Benz 500SL Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1993 Mercedes-Benz 500SL
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1993 Mercedes-Benz 500SL ProblemsFaulty Mass Air Flow Sensor Causing Erratic Engine Operation and Poor Fuel Economy
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.
Internal and External engine oil & coolant leaks can develop from the head gasket and/or timing cover gasket; these leaks should be repaired before the engine oil and coolant intermix which can result in severe engine damage.
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.
1993 Mercedes-Benz 500SL QuestionsREPLACE LOST MASTER KEY (1 answer)
if i let the car sit the battery will drain in 4-5 days-i tried hooking up a meter to the battery in series pulling 1 fuse at a time didnt see anything that would cause the draw bad ground?
to fix. car starts beautifully. rev's are low when at stop light. sometimes car cuts out not often. changed base control unit, and accelerator throttle, and air sensor as codes read but no luck. what happening?
also wanted to know if car should of been recalled?