Arnott 's premium Mercedes-Benz suspension conversion kit C-3698 for the 2003-2009 E-Class (W211 chassis) 4MATIC Sedan with ADS features shock absorbers custom valved by Arnott to provide your vehicle with the comfort and handling E-Class owners expect. Arnott 's new design features steel springs and includes a special patented Electronic Bypass Module (EBM) (U.S. Pat. No. 9,329,917) to disarm the Airmatic system and eliminate dash panel error lights.