Driving Dynamics Control (FDC)
The Driving Dynamics Control function (FDC) is standard with the SMG gearbox. In all other transmission systems, it is available with the sport package. By pressing the "SPORT" button, the FDC function changes overall vehicle characteristics to a sportier drive. The following systems are influenced. See SYSTEMS INFLUENCED BY SPORT BUTTON table.
| Control Module | FDC Effect |
|---|---|
| ECM (DME) | Response characteristic of the accelerator pedal module to the electronic throttle is more progressive. |
| EGS | Higher gearshift speeds and a more sport oriented characteristic. |
| SMG | The shift procedure and shift time are shortened. Higher gearshift speeds and a more sport oriented characteristic in the automatic mode. |
| FGR | Cruise control accelerates faster. |
| Servotronic | More sport oriented steering characteristic. |
| AFS | Standard characteristic. |
The FDC button is located in the center console next to the gearshift or selector lever and is identified by the lettering "SPORT". "SPORT" appears in the LC display in the instrument cluster when the FDC function is active.
The signals from the FDC (SPORT) button are read by the SZM. The SZM sends the signals via the K-CAN > SGM > PT-CAN to the Control Modules ECM, EGS/SMG, Servotronic and AFS. If there are no faults stored in these control modules, the SZM provides a ground and the "SPORT" button illuminates. When illuminated, the button indicates that the sport mode is activated. When the ignition switch is cycled "OFF", this function resets back to the non-sport function. "SPORT" must be reselected by the driver the next time the ignition is cycled back on. See Fig 1 .