The concept

This system issues a warning at speeds above approx. 40 mph/65 km/h if the vehicle is about to leave the lane on roads with lane markings. The steering wheel begins vibrating gently. The system does not provide a warning if the turn signal is set before leaving the lane.

    See also:

    Malfunction
    A message is displayed. Adaptive light control is malfunctioning or has failed. Have the system checked as soon as possible. ...

    Replacing the battery
    Replacing the battery 1. Take the integrated key out of the remote control. 2. Push in the catch with the key, arrow 1. 3. Remove the cover of the battery compartment; see arrow 2. 4. Insert ...

    Switching the high beams on and off manually
    High beams on, arrow 1. High beams off/headlamp flasher, arrow 2. To reactivate the High-beam Assistant, press the button on the turn signal lever. ...