Arnott's premium coil spring conversion kit C-2663 is custom engineered for the 2003-2009 Mercedes-Benz E-Class (W211 Chassis) w/4MATIC, Wagon w/ADS. The Arnott air suspension conversion kit features premium dampers tuned to provide consistent performance. Arnott's conversion kit is built with powder coated coil springs, made from quality American steel, which replace the rubber air springs. The kit is assembled in the USA with machined aluminum top mounts and lower rear seats, shock mount isolators, and polyurethane bump stops. Arnott's kit provides an exact fit for easy installation and includes Arnott's patented Electronic Bypass Module (U.S. Pat. No. 9,329,917) to eliminate suspension related dash panel error messages.

• Custom-tuned dampers
• CNC-machined aluminum mounts & seats
• Powder-coated steel coil springs
• Patented EBM to turn off dashboard warning messages
• Engineered & assembled in the USA