Mercedes-Benz 500SEL Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Mercedes-Benz 500SEL
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Mercedes-Benz 500SEL 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.
One or more door windows may stop working due to a failed window regulator. Replacement of the failed regulator will be necessary to correct this concern.
Mercedes-Benz 500SEL QuestionsMy car starts and runs but when car gets hot it wont start. (1 answer)
I have taking the car to different mechanics and they cannot find the issue. My car starts but when I drive it say an hour and gets hot, and turn it off, it will not start. I have to let it cool off to get back home. lol
The third brake light works but not the left/right lower brake lights
Head light do work when turned on, just the rear light are off