SmartRide's air spring for the front of 2005-2011 Mercedes-BenzÆ ML-Class (W164) SUVs is an affordable, rugged aftermarket replacement air spring that will 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, impact resistant plastic bottom mount and stamped steel top and comes with new seals and air line fitting. SmartRide air springs provide O.E. like form, fit and function and are designed for many years of trouble free driving.