Tightening torque specification
| Name | Nm | pound-foot | pound-inch |
| Wheel sensor bolts | 9 | - | 80 |
| Nuts for fastening brake pipes to the master cylinder (M10) | 17 | 13 | - |
| Fastening the brake line to the hydraulic control unit | 11 | 8 | - |
| Fastening the hydraulic control unit to the bracket | 9 | - | 80 |
| Fastening the hydraulic control unit bracket to the body | 25 | 18 | - |
| Bolt for fastening the sensor bracket to the body | 4 | - | 35 |
| Bolts for fastening the sensor bracket to the body | 7 | - | 62 |
| Yaw Rate Sensor Mounting Nuts | 8 | - | 71 |
Description and principle of operation
The stability control function recognizes critical driving conditions, such as panic reactions in dangerous situations, and ensures vehicle stability by individually braking each wheel and intervening with the engine management system, without the need to operate the brake pedal or accelerator pedal.
The yaw control function is an additional function known as the Electronic Stability Program (ESP), which is related to the anti-lock brake system (ABS), the traction control system (TCS) and the electronic brake-force distribution (EBD). While the ABS/TCS function controls wheel slip during braking and acceleration (longitudinal dynamics), active yaw control ensures that the vehicle remains stable on the selected course.
The sensors measure steering wheel position, brake master cylinder pressure, yaw rate (yaw rate) and vehicle lateral acceleration (lateral acceleration). This enables the driver's intentions to be matched with the vehicle's immediate behaviour, and the stability control program can initiate appropriate corrective action in the event of a loss of stability.
| Pos. | Spare Part No | Name |
| 1 | Hydraulic control unit | |
| 2 | Active brake booster and master cylinder with pressure sensors | |
| 3 | Rear wheel sensor | |
| 4 | Lateral acceleration sensor | |
| 5 | Yaw rate sensor | |
| 6 | Rear wheel sensor | |
| 7 | Steering wheel rotation sensor |
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