I am having problems with the rear suspension of a 1999 V-class 220 CDI. If it is not driven for a day or two, when I start it up the suspension lowers to about 2" from the top of the tyre, making a buzzing noise from the near side, but not like the buzzing and then the click when it is working normally. If i press the button on the dash, it stope the buzzing but the light on the instrument panel comes onm sometimes steady and sometimes flashing. I then have to turn the engine off, press the button on the dash again for the light to go out, then the buzzing starts again, but it sops if i press the brake pedal, but starts when I release it again. It then seems to correct itself after a short while. Can anyone help?