Hello again, I tried to post this problem before but I think I posted it to the wrong part of the newsgroup, so I will try again. I have a Mk3 LS400 1995 model. When I drive this car over a bumpy surface, the suspension seem hard and noisy at the front. I am a little concerned that my suspension may well be suspect or could this be another problem. How do I find out if my car has air suspension or of it is normal suspension. I am sure that all the other LS400 I have driven were much smoother over bad surfaces. Thanks, Dan.