BMW 2004 M3, Owner'S Manual

Page: 82 / 170

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Dynamic Stability Control (DSC)
The concept
DSC supports vehicle stability, even in
critical driving situations.
DSC optimizes driving stability and
traction during acceleration and when
you are starting from a standstill. In
addition, it also recognizes unstable
vehicle conditions, such as understeer-
ing and oversteering. By reducing
engine power and applying brakes at
the wheels, DSC helps to keep the
vehicle on a steady course within phys-
ically feasible limits.
DSC starts up automatically each time
you start the engine.
The laws of physics cannot be
repealed, even with DSC. The
driver remains responsible for the con-
sequences of any inadequate driving
style. Therefore, do not take any risks
because of the additional safety pro-
vided. Do not make any modifications
to the DSC system. Allow only autho-
rized technicians to perform service
procedures on the DSC.
<
Indicator lamp for DSC
The indicator lamp in the instru-
ment cluster will go out shortly
after the ignition has been
switched on, refer to page 20 .
>
The indicator lamp flashes: DSC is
active and is controlling the drive
torque based on driving conditions
>
The indicator lamp does not go out
after the engine is started or lights up
continuously while you are driving:
DSC has been deactivated via the
button or is defective.
You can continue to drive the vehicle
normally without DSC. In the event of a
malfunction, contact a BMW center or a
workshop that works according to
BMW requirements with appropriately
trained personnel.
M Track mode*
M track mode is a feature of the
Dynamic Stability Control DSC,
designed for driving on dry roads. It
allows you to drive with higher longitu-
dinal and lateral acceleration, whereas
driving stability is somewhat reduced.
Only in its absolute limit range will the
system try to stabilize the vehicle by
reducing engine power and applying
brakes to the wheels. Under these driv-
ing conditions the driver must be pre-
pared to perform corrective steering
movements if necessary.
By default, M Track mode is off after
each engine start.
While M Track mode is active, sta-
bilising interventions are per-
formed to a reduced extent only.
<
To maintain vehicle stability,
always drive with DSC switched
on and M Track mode switched off
whenever possible.
<
Indicator lamp for M Track mode
The indicator lamp goes out
shortly after the ignition is
switched on.
>
Indicator lamp stays on: M Track
mode ist on
>
Indicator lamp stays on and DSC
indicator lamp flashes:
M Track mode is actively regulating
drive torque and braking forces.
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