The concept

HDC is a downhill driving assistant that automatically controls vehicle speed on steep downhill gradients. Without requiring brake application, the vehicle moves at slightly more than twice walking speed.

You can activate the Hill Descent Control at speeds below approx. 22 mph/35 km/h. When driving downhill, the vehicle reduces its speed to approx. twice walking speed and then keeps its speed constant.

While you are actively braking, the system is on standby. The system does not brake the vehicle during this time.

    See also:

    Speed limit
    Display of a speed limit which, when reached, should cause a warning to be issued. Renewed warning if the vehicle speed drops below the set speed limit once by at least 3 mph/ 5 km/h. Displayi ...

    Vehicle equipment
    All standard, country-specific and optional equipment that is offered in the model series is described in this chapter. Therefore, equipment is also described that is not available in a vehicle, ...

    Indication in the info display
    The information from the onboard computer is shown in the info display in the instrument cluster. ...