The first-generation Porsche Cayenne (955), produced from 2003 to 2006, was available with either a standard coil spring suspension or an optional air suspension system. Models equipped with the standard coil spring suspension utilized traditional, non-adjustable dampers and did not feature Porsche Active Suspension Management (PASM). These vehicles can be identified by the presence of only a single control switch for the four-wheel-drive system on the center console, lacking additional controls for ride height and shock absorber settings .

Coil Spring Specifications

The coil springs for the Cayenne 955 were designed to accommodate various weight classes, which correspond to different front axle load ranges. These weight classes are indicated by specific option codes:

• Weight Class 1 (Option Code I0JA): Front axle load of 1170–1210 kg
• Weight Class 2 (Option Code I0JB): Front axle load of 1211–1226 kg
• Weight Class 3 (Option Code I0JC): Front axle load of 1227–1251 kg
• Weight Class 4 (Option Code I0JD): Front axle load of 1252–1276 kg 

These classifications ensure that the coil springs provide optimal support and handling characteristics based on the vehicle’s specific configuration and weight distribution .