Important Safety Notes - Mercedes-Benz 2015 GLK Operator's Manual

Driving safety systems
68
Driving safety systems
Overview of driving safety systems
In this section, you will find information about
the following driving safety systems:
ABS (Anti-lock Braking System)
R
BAS (Brake Assist System)
R
BAS PLUS (Brake Assist System Plus)
R
®
ESP (Electronic Stability Program)
R
EBD (Electronic Brake force Distribution)
R
®
PRE-SAFE Brake
R

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,
weather and traffic conditions and maintain a
safe distance from the vehicle in front. Drive
carefully.
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.
( page 332).
Y
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 yellow ! 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 ( page 68).
Y
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 (
display messages which may be shown in the
instrument cluster (
Y
ABS works from a speed of about 5 mph
(8 km/h), regardless of road-surface condi-
tions. ABS works on slippery surfaces, even if
you only brake gently.
Brakes
If ABS intervenes: continue to depress the
X
brake pedal vigorously until the braking sit-
uation is over.
To make a full brake application:
X
depress the brake pedal with full force.
If ABS intervenes when braking, you will feel a
pulsing in the brake pedal.
page 262) and
Y
page 236).