Dynamic Traction Control
DTC
Principle
DTC is a variant of Dynamic Stability Control
DSC and is optimised for forward momentum.
In special road conditions, for example roads on
which snow has not been cleared or on a loose
surface, the system ensures maximum forward
momentum but with somewhat limited driving
stability.
General
Activating DTC provides maximum traction. Driv‐
ing stability during acceleration and cornering is
limited.
Activating DTC briefly may be useful in the
following situations:
▷
When driving in slush or on uncleared, snow-
covered roads.
▷
Starting in deep snow or on a loose surface.
▷
Driving with snow chains.
Overview
Button in the vehicle
DSC OFF
Activate/deactivate DTC
Activating DTC
Press the button.
TRACTION is displayed in the instru‐
ment cluster and the DSC OFF indicator lamp is
illuminated.
Deactivating DTC
Press the button again.
TRACTION and the DSC OFF indicator
light are extinguished.
Display
Display in the instrument cluster
When DTC is activated, TRACTION is displayed
in the instrument cluster.
Indicator and warning lamps
The indicator lamp is illuminated: DTC
has been activated.
Automatic programme change
In certain situations, DSC is activated automati‐
cally:
▷
If Active Cruise Control with Stop&Go func‐
tion ACC is activated.
▷
In the event of a braking intervention by the
Intelligent Safety Systems.
▷
In the event of a flat tyre.
M Sport differential
The active M Differential blocks the rear axis
transmission steplessly, depending on the drive
situation. This prevents the spinning of a single
rear wheel in order to provide optimum traction
in all driving situations.
Seite 188
CONTROLS
Driving Stability Control Systems
188
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Содержание Z4 Roadster
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