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DSC Hill Descent Control (HDC)
As a result of the traction interven-
tion, the brakes may be subjected
to additional loads when the system is
deactivated. For this reason, it is possi-
ble that the braking intervention will be
disabled automatically for a brief period
in order to limit brake temperature.
To maintain vehicle stability, always
drive with the system switched on when
possible.<
To reactivate the system
Press the button again; the indicator
lamp goes out.
The laws of physics cannot be re-
pealed, even with DSC. An appro-
priate driving style always remains the
responsibility of the driver. We there-
fore urge you to avoid using the addi-
tional safety margin of the system as an
excuse for taking risks.<
For additional details concerning DSC,
please refer to the chapter describing
"Advanced technology" on page 177.
The concept
HDC is a system for driving downhill on
steep roads. This system reduces
vehicle speed on steep downgrades,
thus allowing you to maintain control of
your BMW under these conditions.
The vehicle moves at slightly more than
walking speed without active interven-
tion from the driver.
You can activate HDC below approx.
20 mph (35 km/h). When driving down
steep roads, the vehicle reduces speed
automatically down to slightly more
than walking speed (approx. 5 mph/
8 km/h) and then maintains this speed
at a constant.
By applications of the brakes or accel-
erator, you can alter this speed in the
range of approx. 3 mph (5 km/h) to ap-
prox. 20 mph (35 km/h).
HDC is deactivated automatically if you
exceed approx. 35 mph (60 km/h).
To activate the system
Press the button. The
green indicator lamp illumi-
nates.
The indicator lamp flashes when the
brakes are applied automatically.
To deactivate the system
Press the button again; the indicator
lamp goes out.
HDC is deactivated automatically above
a road speed of approx. 35 mph
(60 km/h) and when the ignition is
switched off.
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Online Edition for Part No. 01 41 0 155 303 - © 12/99 BMW AG