Airmatic to Coil Spring Suspension Conversion Kit S-Class W220 with Suspension Light Disable Set of 4 new spring and shock air conversion kit including all necessary hardware to convert your air ride suspension to coil system. Fits RWD only, please check our other listings for 4Matic. Powder coated setup will never rust Bolt on system with no modifications required, includes installation instructions Includes direct plug in (no cutting/splicing wires like most kits) error light disable modules included Lifetime warranty unlimited mileage