Air suspension uses rubber bellows filled with compressed air instead of conventional steel springs, to offer a very high level of ride comfort. The height of the car body can be adjusted by altering the volume of air in the bellows. We offer an air suspension system with continuous damper adjustment in the Phaeton and Touareg. Thanks to automatic ride height control, the body is kept at the same level regardless of the load the car is carrying. Pitching motions when braking or accelerating are compensated for, so the air suspension and damper system improves ride comfort significantly.
Article source: www.volkswagen.co.uk