Air susspension

[Heavysol]

Hi Guy's Gal's i am a newbie to your forum and would like some guidance with my Vito W639 air suspension that's giving me a problem..
i am getting a vehicle warning height message, the suspension is down but the compressor is kicking in but not raising also it wont allow and function by the manual switch, i believe the compressor to be working ok i am susspecting the Valve ? any suggestions please kind regards
John

 

[Giantvanman]

Would I be correct in believing that air suspension systems would have a filter and a water drain/catchment?

 

[BlackC55]

I would firstly check for leaks. If there are none I would assume the pump is worn out.

Some time on a Star will help.

 

[Marku]

Our previous Viano had the same problem but only after a very high mileage - it leaked. Our current Viano is OK, so far, at 56K.