HDC Hill Descent Control

The concept

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

Hill Descent Control can be activated at speeds below approx. 22 mph/35 km/h. When driving downhill, the vehicle reduces its speed to approx.

walking speed and then keeps its speed constant.

As long as there is active braking, the system is on standby. The system does not brake the vehicle during this time.

Use HDC in low gears or in transmission position D or R only.

See also:

Exterior
Visual updates for 2012 affect the 128i more than the 135i. The 128i carries revised circular fog lamps, replacing last year's horizontal lamps. Outboard of the fog lights, vertical slats improve ...

Split screen map view
The map view can be selected for the split screen independently from the main screen. 1. Open "Options". 2. "Split screen" 3. Move the controller to the right repeatedly unt ...

Ignition on
All electrical consumers can operate. The odometer and trip odometer are displayed in the instrument cluster. To save battery power when the engine is off, switch off the ignition and any unnec ...