Assist systems
Braking and stabilisation systems
Introduction
This chapter contains information on the following subjects:
Electronic Stability Control (ESC) 113
Anti-lock Braking System (ABS) 113
Traction Control System (TCS) 113
Electronic Differential Lock (EDL) 114
Hydraulic Brake Assist (HBA) 114
Hill Hold Control (HHC) 114
This chapter deals with the functions of the braking and stabilisation systems,
with the error indicator referred to in chapter » page 34, Indicator lights.
The braking and stabilisation systems are automatically activated each time
the ignition is switched on.
WARNING
■
A lack of fuel can cause irregular engine running or cause the engine to
shut down. The brake assist systems would then fail to function – risk of
accident!
■
The increased safety provided by the brake assist systems must not
tempt you to take safety risks – risk of accident!
■
Adjust the speed and driving style to the current visibility, weather, road
and traffic conditions.
Electronic Stability Control (ESC)
Fig. 105
Buttons for the ESC system: Acti-
vating/deactivating TCS
Read and observe on page 113 first.
The ESC improves vehicle stability in dynamic driving situations, such as when
the vehicle starts to skid.
The ESC monitors whether the desired direction of the current vehicle motion
is occurring. In case of any deviation (e.g. oversteer), the ESC automatically
brakes individual wheels to maintain the desired direction.
During an intervention in the system, the control light will blink in
the instru-
ment cluster.
The ESC system cannot be deactivated. The AST can only be
» Fig. 105deacti-
vated with the symbol key» page 113.
The warning light lights up in the instrument cluster when the ASR is deactiva-
ted
.
The TCS should normally always be enabled. The system should be deactivated
only in the following situations, for example.
›
When driving with snow chains.
›
When driving in deep snow or on a very loose surface.
›
When “rocking a car free” when it has become stuck.
Anti-lock Braking System (ABS)
Read and observe on page 113 first.
ABS prevents the wheels from locking when braking. Thereby, it helps the
driver to maintain control of the vehicle.
The intervention of the ABS is noticeable from the pulsating movements of
the brake pedal which is accompanied by noises.
When the ABS system is active, do not brake periodically or reduce the pres-
sure on the brake pedal.
Traction Control System (TCS)
Read and observe
on page 113 first.
TCS prevents the spinning of the wheels of the driven axle. TCS reduces the
drive power transmitted to the wheels in the case of slipping wheels. Thereby,
for example, driving on road surfaces with low grip is made easier.
If your vehicle is fitted with the ESC system, the ASR is integrated into the ESC
system » page 113.
113
Assist systems
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