Important safety notes, Abs (anti-lock braking system), Bas (brake assist system) – Mercedes-Benz 2012 B Class User Manual

Page 61: Safety, Driving safety systems

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ADAPTIVE BRAKE (

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page 64)

(

Y

page 64)

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STEER CONTROL (

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page 64)

Important safety notes

If you fail to adapt your driving style or
become distracted, the driving safety
systems 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 distance 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.

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The driving safety systems described only

work as effectively as possible when there
is adequate contact between the tires and
the road surface. Pay particular attention
to the information regarding tires,
recommended minimum tire tread depths
etc. in the "Wheels and tires" section
(

Y

page 298).

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)

Important safety notes

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Observe the "Important safety notes"

section for driving safety systems
(

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page 59).

G

WARNING

If ABS is faulty, the wheels could lock when
braking. The steerability and braking
characteristics may be severely impaired.
Additionally, further driving safety systems

are deactivated. There is an increased danger
of skidding and accidents.
Drive on carefully. Have ABS checked
immediately 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 225) and

display messages which may be shown in the
instrument cluster (

Y

page 201).

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.
ABS works from a speed of about 5 mph
(8 km/h) upwards, regardless of road-surface
conditions. ABS works on slippery roads,
even if you only brake gently.
The ! ABS warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out when the engine is running.

Braking

X

If ABS intervenes: continue to depress the

brake pedal vigorously until the braking
situation 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.

BAS (Brake Assist System)

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Observe the "Important safety notes"

section (

Y

page 59).

Driving safety systems

59

Safety

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