The concept
If the vehicle is equipped with Active Cruise Control with Stop & Go, the collision warning is controlled via the cruise control radar sensor.
The system issues a two-phase warning of a danger of collision at speeds above approx.
10 mph/15 km/h. The time of these warnings may vary depending on the current driving situation.
The collision warning is available even if cruise control has been deactivated.

It responds to stationary or moving objects that are within the detection range of the radar system.
When the vehicle is intentionally brought into contact with a vehicle, the collision warning is delayed to avoid false warnings.
See also:
Setting the language
Press and hold the control button for approx. 12
to 13 seconds. Briefly press the control button
again to switch between English "E" and German
"O".
The setting is stored au ...
General information
Switch position: 0,
If the driver door is opened with the ignition
switched off, the exterior lighting is automatically
switched off at these switch settings: ...
Controls on the interior rearview mirror
Controls on the interior rearview mirror
▷ LED, arrow 1.
▷ Buttons, arrow 2.
▷ The hand-held transmitter, arrow 3, is required
for programming. ...
