Works with: 164 CHASSIS | ML AND GL CLASS [2006 - Current] 251 CHASSIS | R CLASS [All] AIRMATIC 211 CHASSIS | E CLASS [2002 - 04/2006] 219 CHASSIS | CLS CLASS [2004 - 04/2006] 220 CHASSIS | S CLASS [2000 - 2006] AIRMATIC | with 4-wire sensor 211 CHASSIS | E CLASS [05/2006 - Current] 219 CHASSIS | CLS CLASS [05/2006 - Current] 221 CHASSIS | S CLASS [2007 - Current] AIRMATIC | with 3-wire sensor 215 CHASSIS | CL CLASS [2002 - 2006] 216 CHASSIS | CL CLASS [2007 - Current] 220 CHASSIS | S CLASS [2000 - 2006] 221 CHASSIS | S CLASS [2007 - Current] 230 CHASSIS | SL CLASS [2003 - Current] ABC Our next generation digital lowering module does away the analog control of competitors, replacing it with the precision of digital microprocessors. Digital control eliminates the effects of temperature variation and inconsistencies of other modules, and the digital design allows you to adjust between 8 heights, from stock to a slammed 50mm drop using the internal rotary switches. Our lowering module is encased in a molded ABS enclosure, with automotive grade waterproof connectors. All required hardware and a comprehensive installation manual are included with this easy to install item.