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:

    Transmitting the settings
    Your personal settings can be taken with you to another vehicle equipped with the Personal Profile function. For more information, contact your service center. Transmission takes place via: &# ...

    Tire inflation pressure values over100 mph/160 km/h
    X3 28i X3 35i ...

    Deleting stored functions
    Press and hold the left and right button on the interior rearview mirror simultaneously for approximately 20 seconds until the LED flashes rapidly. All stored functions are deleted. The functions ...