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:

    Camera monitoring: Lane Departure Warning System and Collision Warning
    The Lane Departure Warning System available for the new BMW 3-Series Sedan is activated at speeds above 70 km/h (43 mph) and warns the driver if he unintentionally strays out of his lane. The syst ...

    System limits
    Check the traffic situation as well PDC cannot serve as a substitute for the driver's personal judgment of the traffic situation. Check the traffic situation around the vehicle with your own ey ...

    Notes
    One person per safety belt Never allow more than one person to wear a single safety belt. Never allow infants or small children to ride on a passenger's lap.◀ Putting on the belt Lay ...