SmartRide's front air spring for the 2001-2006 AudiÆ A6 allroad Quattro (C5 Chassis) is a rugged aftermarket replacement air spring that will affordably replace your leaking air spring. The SmartRide air spring provides a smooth, comfortable, ride and offers an exact fit for quick installation. This spring is made with a durable rubber air bladder, aluminum mount, stamped steel piston and bottom and comes with new seals and air line fitting. SmartRideís economical air springs provide O.E. like form, fit and function and are designed for years of trouble free driving.