Mercedes-Benz GL-Class 2015 - Manual (Page 70)

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 68)
R
BAS (Brake Assist System) (
Y
page 69)
R
BAS PLUS (Brake Assist System Plus)
(
Y
page 69)
R COLLISION PREVENTION ASSIST (distance
warning function and adaptive Brake
Assist) (
Y
page 70)
R ESP ® (Electronic Stability Program)
(
Y
page 73)
R EBD (Electronic Brake force Distribution)
(
Y
page 75)
R
ADAPTIVE BRAKE (
Y
page 76)
R PRE-SAFE ® Brake (
Y
page 76)
R STEER CONTROL (
Y
page 77)
Important safety notes
If you fail to adapt your driving style or
become distracted, the driving safety sys-
tems can neither reduce the risk of accident
nor override the laws of physics. Driving
safety systems are merely aids designed to
assist driving. You are responsible for the dis-
tance to the vehicle in front, for vehicle speed
and for braking in good time. Always adapt
your driving style to suit the prevailing road
and weather conditions and maintain a safe
distance from the vehicle in front. Drive care-
fully.
i The driving safety systems described only
work as effectively as possible when there
is adequate contact between the tires and
the road surface. Please pay special atten-
tion to the notes on tires, recommended
minimum tire tread depths, etc.
(
Y
page 406).
In wintry driving conditions, always use
winter tires (M+S tires) and if necessary,
snow chains. Only in this way will the driv-
ing 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 vehi-
cle 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.
Important safety notes
i Observe the "Important safety notes" sec-
tion (
Y
page 68).
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 328) and
display messages which may be shown in the
instrument cluster (
Y
page 293).
ABS works from a speed of about 5 mph
(8 km/h), regardless of road-surface condi-
tions. ABS works on slippery surfaces, even
when you only brake gently.
68
Driving safety systems
Saf
ety