Collision warning

In contrast to the collision warning, with Active Cruise Control (ACC = Radar), a camera-based technology is applied. Beyond a speed threshold of 15 km/h, the collision warning can issue warnings to rear views of vehicles.

The collision warning has the following subfunctions:

• Initial warning

  Warning, e.g. for signs of collision risk or for very small distances to a vehicle ahead.

  Warning through red vehicle symbol in the instrument cluster, alternative Head-Up Display.

  • Static prewarning for small distance
  • Dynamic prewarning for approaching
• Acute warning

  Warning for immediate risk of collision, if the vehicle approaches another object with relatively high differential speed.

  Flashing red vehicle symbol in the instrument cluster, alternative Head-Up Display and acoustic warning signal

• Pre-filling of the brake
• Adaptation of the thresholds for the Dynamic Brake Control

A Check Control message is also issued.

The time of the warning can be dependent on different values. For example:

• Classification of the current driving situation
• Possibly wet roadway
• Estimation of the attention of the driver via pedal movements and steering wheel movements

Observe functional limitations in the Owner's Handbook  !