Application Compatible for Mercedes Benz S-Class W221 Compatible for Mercedes S350 Bluetec 4 Matic Sedan 4-Door 3.0L 2012-2013 Compatible for Mercedes S450 4 Matic Sedan 4-Door 4.6L 2008-2011 Compatible for Mercedes S550 4 Matic Sedan 4-Door 4.6L 2012-2013 Compatible for Mercedes S550 4 Matic Sedan 4-Door 5.5L 2007-2011 Compatible for Mercedes Benz CL-Class C216 Compatible for Mercedes CL550 4 Matic Coupe 2-Door 4.6L 2011-2013 Compatible for Mercedes CL550 4 Matic Coupe 2-Door 5.5L 2009-2010 Compatible for S-Class Vehicles With 4MATIC (AWD) Suspension Only.NOT fit on Vehicles Equipped with Base RWD or ABC Suspension Models OE/OEM Number 2213200438, 221 320 04 38, A2213200438, A221 320 04 38, 2213205313, 221 320 53 13, A2213205313, A221 320 53 13, 2213201738, 221 320 17 38, A2213201738, A221 320 17 38, 221320173880, 221 320 17 38 80, A221320173880, A221 320 17 38 80, 221320173860, 221 320 17 38 60, A221320173860, A221 320 17 38 60, 221320173888, 221 320 17 38 88, A221320173888, A221 320 17 38 88, 221320043880, 221 320 04 38 80, . ..