RPA: Run Flat Indicator

The Run Flat Indicator (RPA) is not a function of the driving dynamics control. The RPA is integrated in the DSC control unit, as for this function the 4 wheel speed signals are required. By comparing the wheel speeds of all four wheels, the system detects differences in the tire rolling circumferences of the individual wheels. This enables a gradual tire pressure loss to be detected. The Run Flat Indicator can be initialized as follows:

• On vehicle with Car Communication Computer (CCC): in the Central Information Display (CID) in the menu "Setup"
• On vehicles without Car Communication Computer (CCC): in the instrument cluster using onboard computer functions