Suspension Self-Leveling Nitrogen Chamber for SL600 (2004-2006), CL500 (2000-2006), CL55 AMG (2001-2006), CL600 (2001-2006), S430 (2000-2006), S500 (2000-2006), S55 AMG (2001-2006), S600 (2001-2006), SL500 (2003-2006), SL55 AMG (2003-2006), SL65 AMG (2005-2006), S350 (2006), S65 AMG (2006), SL550 (2007)