Hello everyone!

I'm brand new to the site and I need your help! I recently purchased a 2000 Mercedes S500 that needed a front suspension. So, I had the front suspension strut, compressor, and air pump valve replaced. The suspension works perfectly now, but I can hear air coming from the suspension when it is adjusting. When I took it back to the mechanic to check it out, he stated that it is normal to hear the air release. Is this true?

 

You should hear it vent when you shut the car off. Basically, the system "relaxes" so that it's not held at high pressure when it's not necessary. Less wear on the seals and the pump. But I never hear it when I'm driving. If you raise the car with the Lift button, and then lower the car by pressing the Lift button, do you hear it hissing?

Congrats on the car, by the way. They get considerably less mysterious and scarry when you've had them for awhile.