Assist systems
Brake assist systems
Introduction
This chapter contains information on the following subjects:
Electronic Stability Control (ESC)
111
Antilock Braking System (ABS) 112
Traction Control System (TCS) 112
Electronic Differential Lock (EDL) 112
Hydraulic Brake Assist (HBA) 112
Hill Hold Control (HHC) 112
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!
■
Adjust the speed and driving style to the current visibility, weather, road and
traffic conditions. The increased safety provided by the brake assist systems
must not tempt you to take safety risks – risk of accident!
■
In the event of an ABS fault, visit a specialist garage immediately. Adjust
your style of driving according to the damage to the ABS, as you will not know
the exact extent of the damage or the extent to which this is limiting the
braking efficiency.
CAUTION
■
All four wheels must be fitted with the same tyres approved by the manufactur-
er to ensure the brake assist systems operate correctly.
■
Changes to the vehicle (e.g. to the engine, brakes, chassis) can influence the
functionality of the brake assist systems » page 149.
■
If a fault occurs in the ABS system, the ESC, ASR and EDL will also not work. An
ABS fault is indicated by the warning light » page 18.
Electronic Stability Control (ESC)
Fig. 100
ESC system: TCS button
First read and observe the introductory information and safety warn-
ings on page 111.
The ESC system helps improve control of the vehicle in situations where it is be-
ing operated at its dynamic limits, such as a sudden change to the direction of
travel. Depending on the conditions of the road surface, the risk of skidding is re-
duced, thereby improving the vehicle's driving stability .
The ESC system is automatically activated each time the ignition is switched on.
The direction which the driver wishes to take is determined based on the steering
angle and the speed of the vehicle and is constantly compared with the actual
behaviour of the vehicle. In the event of deviations, such as the car beginning to
skid, the ESC system will automatically brake the appropriate wheel.
During an intervention of the system, the warning light
flashes in the instru-
ment cluster.
The following systems are integrated into the Electronic Stability Control (ESC).
›
Antilock Brake System (ABS) » page 112.
›
Traction control (ASR) » page 112.
›
Electronic Differential Lock (EDL) » page 112.
›
Hydraulic Brake Assist (HBA) » page 112.
›
Hill Hold Control (HHC) » page 112.
The ESC system cannot be deactivated. The
» Fig. 100 symbol button can only
be used to deactivate the ASR.
The warning light
lights up in the instrument cluster when the ASR is deactiva-
ted.
111
Assist systems
To Next Page
Loading...
