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.
System functions
The following illustration shows the functional networking.
| Index | Explanation |
|---|---|
| 1 | Front left wheel speed sensor |
| 2 | Brake pad wear sensor, front left |
| 3 | Brake fluid level switch |
| 4 | Dynamic Stability Control (DSC) |
| 5 | DME (Digital Engine Electronics) or DDE (Digital Diesel Electronics) |
| 6 | Front right wheel speed sensor |
| 7 | Front power distribution box |
| 8 | Junction Box Electronics (JBE) |
| 9 | Rear right wheel speed sensor |
| 10 | Brake pad wear sensor, rear right |
| 11 | Electromechanical parking brake (EMF) |
| 12 | Integrated chassis management (ICM) |
| 13 | DTC button (in the center console control panel) |
| 14 | Parking brake button and Automatic Hold button |
| 15 | Telematic Control Unit (TCU) or Combox |
| 16 | Brake light switch |
| 17 | Instrument cluster (KOMBI) |
| 18 | Rear left wheel speed sensor |
| 19 | Steering column switch cluster (SZL) |
| 20 | Central gateway module (ZGM) |
| 21 | Footwell module (FRM) |
| 22 | Car Access System (CAS) |
The following system functions are described for the DSC:
- DTC: Dynamic Stability Control
- Brake standby through application at an early stage of the brake pads when required
- Dry braking of the brake discs on wet roadways
- Fading Brake Support
- Drive-off assistant
- Cruise control with brake function
- electromechanical and hydraulic parking brake
- ABS: Antilock braking system
- EBV: Electronic brake force distribution
- CBC: Cornering Brake Control
- MSR: Engine drag torque control
- ASC: Automatic Stability Control
- DSC: Dynamic Stability Control
- DBC: Dynamic Brake Control
- Trailer Stability Control
Other known system functions for the DSC are:
The following additional functions that do not belong to driving dynamics control are integrated:
- RPA: Run Flat Indicator
- CBS: Condition Based Service
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.