Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Networking of Systems: Notes
The systems involved in the "driving dynamics control" function are shown in the following Input/Output illustration.
| Index | Explanation |
|---|---|
| 1 | Controller |
| 2 | Driving dynamics switch and DTC button |
| 3 | Integrated Chassis Management |
| 4 | Accelerator pedal |
| 5 | Automatic transmission |
| 6 | Steering |
| 7 | Vertical Dynamics Control with electronically adjustable shock absorbers |
| 8 | Active anti-roll bar |
| 9 | Dynamic Stability Control |
| 10 | Instrument cluster |
| 11 | Central information display |
The driver operates the driving dynamics control using the driving dynamics switch and the DTC button. The ICM control unit imports the control signals then determines on the basis of this which new mode the driving dynamics control should adopt. The mode thus determined is transmitted to the relevant drive and dynamic driving systems for implementation. These are:
- The engine control system for the accelerator pedal characteristic.
- The electronic gearbox control for driving programs and shift speed.
- The Vertical Dynamics Management system for the Vertical Dynamics Control and Active Roll Stabilization.
- The Dynamic Stability Control.
- The ICM control unit itself that controls the power steering assistance (Servotronic) and the steering-transmission ratio (Active Steering).
The ICM control unit also prompts the display of the relevant mode in the instrument cluster and also in the Central Information Display. In addition to selecting a mode, the driver can use the controller to make further settings.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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