1990 Mercedes-Benz 560SEL Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1990 Mercedes-Benz 560SEL

1990 Mercedes-Benz 560SEL Problems

Valve Stem Seals Wear and Cause Catalytic Converter Failure

Valve stem seals may wear and cause the engine to burn oil. this can contaminate the catalytic converter and cause it to fail.

Power steering hoses can develop leaks

Power steering hoses and components can develop leaks.

Blend Doors in HVAC May Stop Working Due to Bad Vacuum Actuators

One or more blend door vacuum actuators may fail resulting in the incorrect output temperature from the HVAC system. Failed actuators will require replacement to restore proper HVAC operation.

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1990 Mercedes-Benz 560SEL Questions

what are signs that the manifold gaskets are leaking (1 answer)

In looking over the car I recently bought -- 1990 560SEL with 114,000 miles -- when I had the brakes redone the shop I went to told me they detected leaks in the manifold gaskets. I have no performance issues, not sure I trust the shop who I think thinks I am a little old lady who knows nothing a...

i got car mercedes-benz car model 600 ,want to ask steering box problem (1 answer)

why engine oil can run into my car steering box

What maint requirements are for the 100 thousand mile check for a 1978 380 SL (1 answer)

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1990 Mercedes-Benz 560SEL Reviews

This is a great car that is reliable, the main issue to this model are the standard high-mileage leaks from the valve cover gaskets. Some dealer parts are actually cheaper than aftermarket. In comparison to the 1994 BMW 740iL, it is cheaper to maintain and eventhough it has a 5.6 litre engine, burns less fuel.

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