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:
Tilting the glass sunroof
Push switch upward briefly.
► The closed roof is tilted and
the sliding visor opens
slightly.
► The opened roof closes until
it is in its tilted position. The
sliding visor stays ...
Caring for special components
Light-alloy wheels
Use wheel cleaner, particularly during the winter
months. Do not use aggressive, acidic, strongly
alkaline or abrasive cleaners, or steam jets
above 140 ℉/60 ℃; f ...
Display visibility
The visibility of the displays in the Head-up Display
is influenced by:
▷ Certain sitting positions.
▷ Objects on the cover of the Head-up Display.
▷ Sunglasses with certain pol ...
