A2513201613 If R stands for radically different, then this is true in the Mercedes-Benz R 63 AMG (Platform W251) series. Comfort & safety features of a van were elegantly implemented in the vehicle. Optionally fitted with four-wheel drive (4 Matic) & Airmatic air suspension with level control, the models built during the period between 2005 & 2017 are also referred to as luxury coaches. Our Aerosus front air suspension shock fits the vehicle version with Airmatic, fitted with air suspension system on both axles. The air suspension shock absorber is a spare part of OEM quality. It is ready to install & is supplied with air spring, shock absorber & a solenoid valve with electromagnetic control. All components of our air-suspension struts are brand new high performance parts & fit on both the left & right sides of the front axle. Special Tests for Special Requirements Our air-suspension struts have to permanently withstand high operating pressure. Leakages can't be tolerated...