BMW 530XD - Manual (Page 86)

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Activating DTC
Press the button; the DTC indicator lamp in the
instrument cluster comes on.
Deactivating DTC
Press the button again; the DTC indicator lamp
in the instrument cluster goes out.
Indicator lamps
If the indicator lamp is flashing:
DTC is regulating the propulsive and
braking forces.
If the indicator lamp is on:
DTC is activated.
xDrive 525xi, 530xi, 530xd
xDrive is the four-wheel-drive system of your
BMW. The combined effect of xDrive and DSC
further optimises traction and driving dynamics.
The four-wheel-drive system xDrive 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 525xi, 530xi,
530xd
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 twice walking pace,
without 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 twice walking pace,
approx. 12 km/h, approx. 7 mph, and this speed
is then maintained.
You can alter this speed within the range of
about 5 km/h and 25 km/h, approx. 3 mph and
16 mph, by accelerating or braking.
You can specify a target speed within the same
range by using the cruise control lever.
Activating HDC
You can activate HDC:
> With the programmable buttons on the
steering wheel, see page
51
> Via iDrive
iDrive concept, see page 14 .
1. Call up the start menu.
2. Press the controller to call up the menu.
3. Select "Vehicle settings" and press the
controller.
4. Select "HDC" and press the controller.
5. Select "HDC on" and press the controller.
The HDC display in the instrument cluster
appears.
If the car is braked automatically, a message
appears on the control display for about 20 sec-
onds.
Deactivating HDC
With the programmable buttons in the steering
wheel or via iDrive; the HDC display goes out.
At above approx. 60 km/h, approx. 37 mph,
HDC is deactivated immediately, and about
10 seconds after the ignition has been switched
off.
Online Edition for Part-No. 01 41 0 159 725 © 09/05 BMW AG