See also:

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: ...

Turn signal, high beams, headlamp flasher
Turn signal, high beams, headlamp flasher 1. High beams 2. Headlamp flasher 3. Turn signal ...

Malfunction
A message is displayed in the instrument cluster. HDC is not available, e.g., due to elevated brake temperatures. ...