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 ProblemsCoolant Leak Due to Cracked/Broken Heater Core Outlet Housing
A cracked or broken heater core outlet housing can cause a coolant leak near the bulkhead (firewall). Our technicians remind us that coolant leaks should be repaired in order to avoid overheating the engine due to coolant loss.
The engine wiring can degrade because the insulating material falls off leaving the bare wire exposed. This can cause many problems depending on which wires are exposed and what they touch.
Due to wear, high usage vehicles can experience ignition lock and tumbler failures. The ignition lock cylinder will generally require replacement to correct this concern.
Mercedes-Benz 500SEL QuestionsEngine lowers and I must press accelerator pedal almost to floor so I can pull (1 answer)
over. Shut off engine for about 60 to 90 seconds. Turn engine on and it returns to full power. Used to do this once or twice a year. Now it can be 2 or 3 times a day.
MB told me to follow this procedure in 1995.
I pull to the side of the road and shut the engine off for about 1 or 2 minutes and it restarts. What is the cause? I want it fixed. Used to happen once or twice a year. Now it happens about 3 times within a 30 mile, or less, drive.
I have had my Mercedes for over 3 years and i have had few problems in the past with the doors but not like i am now. I have tried almost everything i know to get inside the car, nothin seems to be working. I have also changed the battery a few times. Any feed back will be helpful