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:
2009 BMW X3 Review
There is very little about the 2009 BMW X3 that hasn't already been covered
by Cars.com; the 2007 model that Kelsey Mays reviewed is essentially the same
vehicle that's offered for 2009. What has ...
Requirements
The installed BMW Assist system is logged
in to a wireless communications network.
This network must be capable of transmitting
the services.
To transmit position data, the vehicle must ...
Intermittent operation or rain sensor
The concept
The rain sensor automatically controls the time
between wipes depending on the intensity of
the rainfall. The sensor is located on the windshield,
directly behind the interior rearv ...