I have a 92 500SEL and on the right side in the trunk by the intake pipe for the fuel there is a red button which looks like it could be depressed. What is this for? Is it a fuel shut off? Also can you tell me if this car has a hydrolic suspension and how would I test it to see if it is working properly? On my father's Lincoln there was a switch that turned off the automatic leveling system and I was wondering if there was a switch on this car which could have been turned off by accident. What are the symptoms of the air cushions going bad?

Thank You
Fred Berry

The red button is for relese the gas door lock in cause the centrol locking system
inopative.
there's no switch you can turned off the hydrolic leveling system.
Here is how to check your hydrolic suspension
just push hard at rear end of vehicle if vehicle bounce back more then two time the suspersion system have to be check.
usually is the air cells go bad.

If I am not mistaken, your car has hydrauic suspension, not air. To check it go over a big bump and the rear should not rebound more than 2 times. This system has accumulators that can go south.

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