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Driving safety systems
Overview of driving safety systems
In this section, you will find information about
the following driving safety systems:
R
ABS (Anti-lock Braking System)
(Y page 65)
R
BAS (Brake Assist System) (Y page 66)
R
Active Brake Assist (Y page 66)
R
ESP
®
(Electronic Stability Program)
(Y page 68)
R
EBD (Electronic Brake force Distribution)
(Y page 72)
R
ADAPTIVE BRAKE (Y page 72)
R
Active Brake Assist with cross-traffic function
(Y page 72)
R
STEER CONTROL (Y page 75)
Important safety notes
If you fail to adapt your driving style or if you are
inattentive, the driving safety systems can nei-
ther reduce the risk of an accident nor override
the laws of physics. Driving safety systems are
merely aids designed to assist driving. You are
responsible for maintaining the distance to the
vehicle in front, for vehicle speed, for braking in
good time, and for staying in lane. Always adapt
your driving style to suit the prevailing road and
weather conditions and maintain a safe distance
from the vehicle in front. Drive carefully.
The driving safety systems described only work
as effectively as possible when there is ade-
quate contact between the tires and the road
surface. Pay particular attention to the informa-
tion regarding tires, recommended minimum
tire tread depths etc. in the "Wheels and tires"
section (Y page 330).
In wintry driving conditions, always use winter
tires (M+S tires)and if necessary, snow chains.
Only in this way will the driving safety systems
described in this section work as effectively as
possible.
ABS (Anti-lock Braking System)
General information
ABS regulates brake pressure in such a way that
the wheels do not lock when you brake. This
allows you to continue steering the vehicle when
braking.
The ! ABS warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out when the engine is running.
ABS works from a speed of about 5 mph
(8 km/h), regardless of road-surface conditions.
ABS works on slippery surfaces, even when you
only brake gently.
Important safety notes
i
Observe the "Important safety notes" sec-
tion (Y page 65).
G
WARNING
If ABS is faulty, the wheels could lock when
braking. The steerability and braking charac-
teristics may be severely impaired. Addition-
ally, further driving safety systems are deac-
tivated. There is an increased danger of skid-
ding and accidents.
Drive on carefully. Have ABS checked imme-
diately at a qualified specialist workshop.
When ABS is malfunctioning, other systems,
including driving safety systems, will also
become inoperative. Observe the information
on the ABS warning lamp (Y page 259) and dis-
play messages which may be shown in the
instrument cluster (Y page 228).
Braking
X
If ABS intervenes: continue to depress the
brake pedal vigorously until the braking sit-
uation is over.
X
To make a full brake application: depress
the brake pedal with full force.
If ABS intervenes when braking, you will feel a
pulsing in the brake pedal.
The pulsating brake pedal can be an indication
of hazardous road conditions, and functions as a
reminder to take extra care while driving.
Driving safety systems
65
Safety
Z
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