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:

    Activating/deactivating the system manually
    Using the button Press the button. ▷ LED comes on: Auto Start Stop function is deactivated. The engine is started during an automatic engine stop. The engine can only be stopped or st ...

    Requirements
    ▷ A suitable mobile phone is paired with the vehicle and connected. In some mobile phones, data access must be confirmed on the mobile phone. ▷ The time, time zone, and date, refer ...

    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, e ...