Traction control system (TCS)
The TCS reduces the drive output if wheelspin occurs and adapts the drive output to suit road surface conditions
(→ Brake support systems). The TCS makes it easier to pull away, accelerate and drive up hills.
Depending on the vehicle equipment, the TCS can be switched off in exceptional circumstances (→ Brake support
systems).
Anti-lock brake system (ABS)
The anti-lock brake system can prevent the wheels from locking when the brakes are applied up until the point where
the vehicle is nearly stationary and assists the driver in steering the vehicle and keeping it under control (→ Brake
support systems).
Brake assist system (BAS)
The brake assist system can help to reduce the stopping distance. The brake assist system reinforces the braking
force when the driver depresses the brake pedal quickly in an emergency situation.
If you reduce the pressure on the brake pedal, the brake assist system will switch off the brake servo function.
Electronic differential lock (EDL)
EDL brakes a spinning wheel automatically and distributes the drive force to the other drive wheels.
The EDL switches off automatically under unusually heavy loads to prevent the brake from overheating. The EDL
switches back on again automatically as soon as the brake has cooled down.
Automatic Post-Collision Braking System
In the event of a collision, the Automatic Post-Collision Braking System can help the driver to reduce the risk of
skidding, and the danger of secondary collisions, through automatic braking.
The Automatic Post-Collision Braking System functions only for collisions that are detected as a collision by the
airbag control unit.
The vehicle is braked automatically if the required systems have not been damaged in the collision and have
remained functional.
The following actions override automatic braking in the event of a collision:
—When the driver depresses the accelerator.
—If the brake pressure is stronger as a result of a pressed brake pedal.
Electronic brake pressure distribution system (EBD)
The electronic brake pressure distribution system controls the brake pressure for the rear wheels and thereby
ensures the optimum distribution of brake pressure between the front and rear axles. Electronic brake pressure
distribution can prevent the rear of the vehicle breaking away due to overbraked rear wheels.
Electromechanical brake servo
The electromechanical brake servo supports the driver's foot movement when the ignition is switched on, and boosts
the pressure applied to the brake pedal by the driver → . In the event of a braking intervention by a driver assist
system, e.g. when ACC is regulating or during emergency braking, the brake pedal can move automatically.
The brake pressure boost will reduce gradually after you switch off the ignition. Messages are displayed on the
instrument cluster display if the vehicle is still being held by the brake pedal. The brake servo function is restricted in
273