Tech
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84
Dynamic Traction Control DTC
DTC is a version of DSC that has been traction-
optimised for particular operating conditions,
e.g. driving on roads where the snow has not
been cleared. The system assures maximum
traction, but with reduced dynamic stability.
You should therefore drive with caution.
In the following exceptional situations it may be
best to activate DTC for a short time:
>
When driving in sand, uphill on snow-cov-
ered roads, in slush or on unploughed,
snow-covered roads
>
For rocking the car out of a hollow or start-
ing in deep snow or sand, or on a loose sur-
face
>
When driving with snow chains
*
Activating DTC
Press the button; the DTC indicator light in the
instrument cluster lights up.
Indicator lights
If the indicator light is flashing:
DTC is regulating the propulsive and
braking forces.
If the indicator lights are lit:
DTC is activated.
Deactivating DTC
Press the button again; the DTC indicator light
in the instrument cluster goes out.
xDrive
xDrive is the four-wheel-drive system on your
X5. The combined effect of xDrive and DSC fur-
ther optimises traction and driving dynamics.
The xDrive four-wheel drive system distributes
the torque flow variably to the front and rear
wheels in accordance with the driving situation
and the condition of the road surface.
Hill Descent Control HDC
Principle
HDC reduces the car's speed when driving
down steep inclines and thus makes your BMW
even easier to control in such conditions. The
car will then move at about walking pace, with-
out your having to regulate its speed.
HDC can be activated at speeds of less than
approx. 35 km/h, approx. 22 mph. When the car
starts to travel downhill, its speed of below
approx. 35 km/h, approx. 22 mph, is automati-
cally reduced to about walking pace, approx.
8 km/h, approx. 5 mph, and this speed is then
maintained.
Only use HDC in transmission positions D or R.
Increasing or reducing speed
You can alter this speed within the range of
about 6 km/h and 25 km/h, approx. 4 mph and
16 mph, by accelerating or braking.
You can specify a target speed within the same
range by using the cruise control lever.
On gradients steeper than 10
Ξ
, you can
reduce the speed to approx. 4 km/h, approx.
2.5 mph. Pull the cruise control lever beyond
the pressure point, arrow
3
.
Online Edition for Part-No. 01 41 0 013 209 - © 04/07 BMW AG
Summary of Contents for 2007 X5 3.0d
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