See also:

Ventilation in rear
Ventilation in rear 1 Use the thumbwheels to smoothly open and close the air vents 2 Use the lever to change the direction of the air flow ...

Activating HDC
Activating HDC Press the button; the LED above the button lights up. The LED flashes when the brakes are applied automatically. ...

Automatic deactivation during forward travel
The system switches off when a certain driving distance or speed is exceeded. Switch the system back on if necessary. ...