ESP MERCEDES-BENZ B-CLASS HATCHBACK 2014 User Guide

restraint system manufacturer's installation
instructions.
Operation of automatic front-passenger
front airbag deactivation :
PASSENGER AIR BAG OFF indicator lamp
; PASSENGER AIR BAG ON indicator lamp
The indicator lamps inform you whether the
front-passenger front airbag is disabled or
enabled.
X Press the Start/Stop button once or twice,
or turn the key to position 1or 2in the
ignition lock.
The system carries out a self-diagnosis.
The PASSENGER AIR BAG OFF and
PASSENGER AIR BAG ON indicator lamps
must light up simultaneously for approx-
imately six seconds.
The indicator lamps display the status of the
front-passenger front airbag. R PASSENGER AIR BAG OFF lights up: the
front-passenger front airbag is disabled. It
will then not be deployed in the event of an
accident.
R PASSENGER AIR BAG ON lights up: the
front-passenger front airbag is enabled. If,
in the event of an accident, all deployment
criteria are met, the front-passenger front
airbag is deployed.
If the status of the front-passenger front air-
bag changes while the vehicle is in motion, an
airbag display message appears in the instru-
ment cluster (Y page 264). When the front-
passenger seat is occupied, always pay atten- tion to the PASSENGER AIR BAG ON and
PASSENGER AIR BAG OFF indicator lamps. Be
aware of the status of the front-passenger
front airbag both before and during the jour-
ney.
If there is no child restraint system fitted to
the front-passenger seat, the front passengermust sit:
R with the seat belt fastened correctly
R in an almost upright position with their
back against the seat backrest
R with their feet resting on the floor, if possi-
ble
If the front passenger does not observe these
conditions, the automatic front-passenger
front airbag deactivation system may be influ- enced, e.g. because the front passenger:
R transfers their weight by supporting them-
selves on a vehicle armrest
R sits in such a way that their weight is raised
from the seat cushion
The front-passenger front airbag may be dis-
abled by mistake as a result of these or similar
actions. In this case, the PASSENGER AIR
BAG OFF indicator lamp lights up perma-
nently. The front-passenger front airbag does not then deploy during an accident. G
WARNING
If the PASSENGER AIRBAG OFF indicator lamp is lit, the front-passenger front airbag is disa-
bled. It will not be deployed in the event of an
accident and cannot perform its intended pro-
tective function. A person in the front-
passenger seat could then, for example, come
into contact with the vehicle's interior, espe-
cially if the person is sitting too close to the
dashboard. This poses an increased risk of
injury or even fatal injury.
When the front-passenger seat is occupied,
always make sure that:
R the classification of the person in the front-
passenger seat is correct and that the front-
passenger front airbag is enabled or disa- 50
Occupant safetySafety

tion in "Child restraint systems on the front-
passenger seat" (Y page 64) and in "Suit-
able positioning of the child restraint sys-
tem" (Y page 66). Alternatively, you can
fit the child restraint system to a suitable
rear seat.
R the front-passenger seat is occupied by a
person with a smaller build (e.g. a teenager
or small adult), either the PASSENGER AIR
BAG ON or PASSENGER AIR BAG OFF indi- cator lamp lights up and remains lit after
the system self-test depending on the
result of the classification.
- if the PASSENGER AIR BAG ON indicator
lamp lights up, move the front-passenger seat as far back as possible. Alterna-
tively, a person with a small build can sit
on a rear seat.
- if the PASSENGER AIR BAG OFF indicator
lamp is lit, a person with a smaller build
should not use the front-passenger seat.
R the front-passenger seat is occupied by an
adult or a person with a build correspond-
ing to that of an adult, the PASSENGER AIR BAG ON indicator lamp lights up after the
system self-test and remains lit. This indi-
cates that the front-passenger front airbag
is enabled.
If children are travelling in the vehicle, be sure to observe the notes on "Children in the Vehi-
cle" (Y page 57).
If the automatic front-passenger front airbag
deactivation system is malfunctioning, the
red 6 restraint system warning lamp in
the instrument cluster and the PASSENGER
AIR BAG OFF indicator lamp light up simulta-
neously. The front-passenger front airbag is
disabled in this case and does not deploy dur- ing an accident. Have the system checked as
soon as possible by qualified technicians.
Consult a Mercedes-Benz Service Centre. The
front-passenger seat should only be repaired at a Mercedes-Benz Service Centre.
If the front-passenger seat, the seat cover orthe seat cushion is damaged, have the nec- essary repair work carried out at a Mercedes-
Benz Service Centre.
For safety reasons, Mercedes-Benz recom-
mends that you only use a child restraint sys-
tem which has been tested and approved by
Mercedes-Benz in combination with the auto- matic front-passenger front airbag deactiva-
tion system.
System self-test G
DANGER
If both the PASSENGER AIR BAG OFF and
PASSENGER AIR BAG ON indicator lamps do
not light up during the system self-test, the
system is malfunctioning. The front-
passenger front airbag might be triggered
unintentionally or might not be triggered at all in the event of an accident with high deceler-
ation. This poses an increased risk of injury or even fatal injury.
In this case the front-passenger seat may notbe used. Do not install a child restraint system
on the front-passenger seat. Have the auto-
matic front-passenger front airbag deactiva-
tion system checked and repaired immedi-
ately at a qualified specialist workshop. G
WARNING
If the PASSENGER AIRBAG OFF indicator lamp remains lit after the system self-test, the
front-passenger front airbag is disabled. It willnot be deployed in the event of an accident. In
this case, the front-passenger front airbag
cannot perform its intended protective func-
tion, e.g. when a person is seated in the front- passenger seat.
That person could, for example, come into
contact with the vehicle's interior, especially
if the person is sitting too close to the dash-
board. This poses an increased risk of injury or even fatal injury.
When the front-passenger seat is occupied,
always ensure that:
R the classification of the person in the front-
passenger seat is correct and the front- 52
Occupant safetySafety

Problems with automatic front-passenger front airbag deactivation
Be sure to observe the notes on "System self-test" (Y
page 52).Problem
Possible causes/consequences and
M
MSolutions The PASSENGER AIR
BAG OFF indicator
lamp lights up and
remains lit, even
though the front-
passenger seat is occu-
pied by an adult or a
person with a build cor-responding to that of an
adult. The classification of the person on the front-passenger seat is
incorrect.
X Make sure the conditions for a correct classification of the per-
son on the front-passenger seat are met (Y page 50).
X If the PASSENGER AIR BAG OFF indicator lamp remains lit, the
front-passenger seat may not be used.
X Have the automatic front-passenger front airbag deactivation
system checked as soon as possible at a Mercedes-Benz Ser-
vice Centre. The PASSENGER AIR
BAG OFF indicator
lamp does not light up
and/or does not stay
on.
The front-passenger
seat is:
R empty
R occupied with a rear-
ward-facing child
restraint system The automatic front-passenger front airbag deactivation system is
malfunctioning.
X Make sure there is nothing between the seat and the child
restraint system.
X Make sure that the entire base of the child restraint system rests
on the seat cushion of the front-passenger seat.
X When installing the child restraint system, make sure that the
seat belt is tight. Do not pull the seat belt tight with the front-
passenger seat adjustment. This could result in the seat belt and the child restraint system being pulled too tightly.
X Check that the child restraint system is installed correctly.
X Make sure that no objects are applying additional weight to the
seat.
X If the PASSENGER AIR BAG OFF indicator lamp remains off and/
or the PASSENGER AIR BAG ON indicator lamp lights up, do not
install a rearward-facing child restraint system on the front-
passenger seat. It is recommended that you fit the child
restraint system to a suitable rear seat.
X Have the automatic front-passenger front airbag deactivation
system checked as soon as possible at a Mercedes-Benz Ser-
vice Centre. Deployment of belt tensioners and air-
bags
Important safety notes G
WARNING
After the airbag deploys, the airbag parts are
hot. There is a risk of injury. Do not touch the airbag parts. Have a
deployed airbag replaced at a qualified spe-
cialist workshop as soon as possible.
G
WARNING
Pyrotechnic seat belt tensioners that have
been deployed are no longer operational and 54
Occupant safetySafety

are unable to perform their intended protec-
tive function. This poses an increased risk of
injury or even fatal injury.
Therefore, have pyrotechnic belt tensioners
which have been triggered immediately
replaced at a qualified specialist workshop.
Mercedes-Benz recommends that you have
the vehicle towed to a qualified specialist
workshop after an accident. Take this into
account, particularly if a seat belt tensioner
was triggered or an airbag was deployed.
An electric motor is used by PRE-SAFE ®
to
trigger the tightening of the seat belt in haz-
ardous situations. This procedure is reversi-
ble.
If the belt tensioners are triggered or an air-
bag is deployed, you will hear a bang, and a
small amount of powder may also be
released. The 6restraint system warning
lamp lights up.
Only in rare cases will the bang affect your
hearing. In general, the powder released is
not hazardous to health but may cause short- term breathing difficulties to persons suffer-
ing from asthma or other pulmonary condi-
tions. Provided it is safe to do so, you should
leave the vehicle immediately or open the
window in order to prevent breathing difficul- ties.
Operation During the first stage of a collision, the
restraint system control unit evaluates impor-
tant physical data relating to vehicle deceler- ation or acceleration, such as:
R duration
R direction
R intensity
Based on the evaluation of this data, the
restraint system control unit triggers the seat belt tensioners in the event of a head-on or
rear collision. A seat belt tensioner can only be triggered if:
R the ignition is switched on
R the components of the restraint system are
operational; see "Restraint system warning lamp" (Y page 41)
R the belt tongue has engaged in the belt
buckle of the respective front seat
The seat belt tensioners in the rear compart-
ment are triggered independently of the lock
status of the seat belts.
If the restraint system control unit detects a
high severity of an accident, in certain head-
on collisions, additional components of the
restraint system are deployed independently
of each another:
R Front airbags and driver's kneebag
R Windowbag, if the system determines that
deployment can offer additional protection
to that provided by the seat belt
On vehicles with the automatic front-
passenger front airbag deactivation system:
depending on the person in the front-
passenger seat, the front-passenger front air-
bag is either disabled or enabled. The front-
passenger front airbag can only be deployed
in an accident if the PASSENGER AIR BAG ON indicator lamp is lit. Observe the information
on the PASSENGER AIR BAG indicator lamps
(Y page 41).
Your vehicle has two-stage front airbags. In
the first deployment stage, the front airbag is
filled with propellant gas to reduce the risk of
injuries. The front airbag is fully deployed if
the second deployment stage is activated
within a few milliseconds.
The activation threshold for the seat belt ten- sioners and airbags is determined based on
the evaluation of the vehicle's rate of decel-
eration or acceleration at various points in the
vehicle. This process is pre-emptive in nature. The triggering/deployment process should
take place in good time at the start of the
collision. Occupant safety
55Safety Z

The rate of vehicle deceleration or accelera-
tion and the direction of the force are essen- tially determined by:
R the distribution of forces during the colli-
sion
R the collision angle
R the deformation characteristics of the vehi-
cle
R the characteristics of the object with which
the vehicle has collided
Factors which can only be seen and measured
after a collision has occurred do not play a
decisive role in the deployment of an airbag,
nor do they provide an indication of airbag
deployment.
The vehicle may be deformed significantly
without an airbag being deployed. This is the
case if only parts which are relatively easily
deformed are affected and the rate of decel-
eration is not high. Conversely, an airbag may be deployed even though the vehicle suffers
only minor deformation. This is the case if, for
example, very rigid vehicle parts such as lon-
gitudinal body members are hit, and sufficient deceleration occurs as a result.
If the restraint system control unit detects a
side impact, the applicable components of
the restraint system are activated independ-
ently of each other.
R Sidebags on the side on which an impact
occurs, independent from the seat belt ten-
sioner and seat belt usage
Vehicles with the automatic front-
passenger airbag deactivation system: the
sidebag on the front-passenger side
deploys under the following conditions:
- an occupant is detected on the front-
passenger seat or
- the belt tongue is engaged in the belt
buckle of the front-passenger seat
R Windowbag on the side on which an impact
occurs, independent of seat belt usage and regardless of whether the front-passenger
seat is occupied
R Seat belt tensioners, if the system deter-
mines that deployment can offer additional
protection for the vehicle occupants in this
situation
i Not all airbags are deployed in an acci-
dent. The different airbag systems work
independently of each other.
How the airbag system works is deter-
mined by the severity of the accident detec-
ted, especially the vehicle deceleration or
acceleration, and the apparent type of acci- dent:
R frontal collision
R side impact PRE-SAFE
®
(anticipatory occupant
protection)
Introduction In certain hazardous situations, PRE-SAFE
®
takes pre-emptive measures to protect the
vehicle occupants.
Important safety notes !
Make sure that there are no objects in the
footwell or behind the seats. There is a risk that the seats and/or the objects could be
damaged when PRE-SAFE ®
is activated.
Although your vehicle is equipped with PRE-
SAFE ®
, the possibility of injury in the event of
an accident cannot be ruled out. 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. 56
Occupant safetySafety

support the back of each vehicle occupant's
head at eye level before driving off.
Operation Folding out the child seat
:
Side head restraints
; Belt guide
= Integrated child seat
? Release handle
X Pull release handle ?forwards.
X Lift integrated child seat =and press it
back until it engages.
Fastening a child's seat belt
Always observe:
R the safety notes on the seat belt
(Y page 42) and the notes on correct use of
seat belts (Y page 43)
R the installation instructions for the ICS pad-
ded play table
X Pull the seat belt smoothly from the belt
outlet.
X Engage the belt tongue into the buckle of
the corresponding seat.
X If you are using the integrated child seat
without the padded table, make sure that:
R the lap belt is taut and passes across the
lap as low down as possible.
The lap must always be routed across
your hip joints and never across your
abdomen. If necessary, press the lap belt down into your hip joints and pull tight
with the shoulder section of the belt.
R the seat belt is pulled tight across the
body.
R the seat belt is not twisted.
Only then can forces which occur be dis-
tributed across the surface of the seat
belt.
R the shoulder section of the belt is routed
across the centre of the shoulder.
The shoulder section of the seat belt
should not touch your neck nor be routed
under your arm.
X Adjust the head restraint if necessary; see
(Y page 111).
Folding in the child seat X
Pull release handle :forwards.
X Push the centre of the integrated child seat
forwards and down ;until it engages.
Padded table Important safety notes
Observe the safety notes on the integrated
child seat (Y
page 61). G
WARNING
If the ICS padded play table has been incor-
rectly fitted to the integrated child seat, it
cannot perform its intended protective func-
tion. A child therefore cannot be restrained in the event of an accident, heavy braking or a
sudden change of direction. In addition, the
ICS padded play table could become loose 62
Children in the vehicleSafety

and be thrown around, endangering vehicle
occupants. This poses an increased risk of
injury or even fatal injury.
Fit the ICS padded play table as described.
After fitting the ICS padded play table, make
sure that it is secured correctly. For safety
reasons, only use the ICS padded play table
that has been tested and approved for your
vehicle.
The ICS padded play table is only suitable for
use with the folded-out integrated child seat.
On the rear seats with an integrated child
seat, only use the ICS padded play table that
is recommended for Mercedes-Benz vehicles. Only use the ICS padded play table with its
original cover. Without the original cover, the
official approval is invalidated.
Use the ICS padded play table in accordance
with the instructions in the table in the "Inte-
grated child seat (ICS)" section (Y page 61).
Note that children under two years old and
children who weigh less than 12.5 kg require a different and suitable child restraint system.
Information about other child restraint sys-
tems is available at any Mercedes-Benz Ser-
vice Centre.
You must not use the integrated child seat
with ICS padded play table as a direct attach- ment to a baby car seat for which a body
weight of up to 10 kg is permissible. Note that
children younger than 24 month sold require
a different child restraint system
(Y page 70).
If you are not using the ICS padded play table, stow it in an appropriate place, e.g. in the lug-
gage compartment. You will find further infor-
mation on stowing objects, luggage and loads securely under "Loading guidelines". Fitting the ICS padded play table
:
Side head restraints
; ICS padded play table
= Seat belt guide points
? Left leg
A Integrated child seat
B Right leg
X Fold out integrated child seat A
(Y page 61).
X Place the child on integrated child seat A.
X Fold both legs ?and Bdown.
X Place ICS padded play table ;over inte-
grated child seat A.
X Pull the seat belt smoothly from the belt
outlet.
X Insert the upper and lower sections of the
belt into seat belt guide point =on the
door side.
X Guide both sections of the belt towards
seat belt guide point =in the centre of the
vehicle and insert.
X Engage the belt tongue into the buckle of
the corresponding seat.
X Slide ICS padded play table ;close to the
child's body. Children in the vehicle
63Safety Z

Suitability of the seats for attaching a belt-secured child restraint system
If you use a baby car seat of category 0 or 0+ or a rearward-facing child restraint system of
category I on a rear seat, you must adjust the driver's or front-passenger seat so that the seat
does not touch the child restraint system.
If you use a category I, forward-facing child restraint system, you should remove the head
restraint of the respective seat (Y page 112), if possible. The backrest of the child restraint
system must, as far as possible, lie flat against the backrest of the seat.
Always observe the notes in the "Child restraint system" section (Y page 58) and the child
restraint system manufacturer's installation instructions.
When you remove the child restraint system you must replace the head restraints again
immediately (Y page 110). All vehicle occupants must adjust their head restraints correctly
before beginning the journey.
Legend for the table:
XS eat which is unsuitable for children in this weight category.
US uitable for child restraint systems in the "Universal" category that are approved for use
in this weight category.
UF Suitable for forward-facing child restraint systems that belong to the "Universal" category and are approved for use in this weight category.
LS uitable for child restraint systems as recommended, see the table "Recommended child
restraint systems" (Y page 70). Suitable for semi-universal child restraint systems if the
vehicle and the seat are listed in the child restraint system manufacturer's vehicle model
list.
Front-passenger seat Weight category Front-passenger
front airbag enabled The front-passenger
front airbag is disa-
bled 0
up to 10 kg X
U
1
, L 1 0+
up to 13 kg X
U
1
, L 1 I
9 kg to 18 kg UF, L
U
1
, L 1 II
15 kg to 25 kg UF, L UF, L
III
22 kg to 36 kg UF, L UF, L
Rear seats
Weight category Left, right Centre
0
up to 10 kg U, L
U
2
, L 2 0+
up to 13 kg U, L
U
2
, L 2 1
The vehicle is equipped with an automatic front-passenger front airbag deactivation system. The PASSENGER
AIR BAG OFF indicator lamp must be lit.
2 Child restraint systems with a supporting bracket are not suitable for this seat. 68
Children in the vehicleSafety

Weight category Left, right Centre
I
9 kg to 18 kg U, L
U
2
, L 2 II
15 kg to 25 kg U, L X
III
22 kg to 36 kg U, L X
Suitability of the seats for attaching ISOFIX child restraint systems
If you use a baby car seat of category 0 or 0+ or a rearward-facing child restraint system of
category I on a rear seat, you must adjust the driver's or front-passenger seat so that the seat
does not touch the child restraint system.
If you use a category I, forward-facing child restraint system, you should remove the head
restraint of the respective seat (Y page 112), if possible. The backrest of the child restraint
system must, as far as possible, lie flat against the backrest of the seat.
Always observe the notes in the "Child restraint system" section (Y page 58) and the child
restraint system manufacturer's installation instructions.
When you remove the child restraint system you must replace the head restraints again
immediately (Y page 110). All vehicle occupants must adjust their head restraints correctly
before beginning the journey.
Legend for the table:
XI SOFIX position that is not suitable for ISOFIX child restraint systems in this weight cat-
egory and/or size category.
IUF Suitable for forward-facing ISOFIX child seat securing systems that belong to the "Uni- versal" category which are approved for use in this weight category.
IL Suitable for ISOFIX child restraint systems as recommended; see the following table of "Recommended child restraint systems" (Y page 70).
The manufacturer will also recommend a suitable ISOFIX child restraint system. For this,
your vehicle and the seat must be listed in the child restraint system manufacturer's
model list. For more information, contact the child restraint system manufacturer or visit
their website. Weight category Size category Equipment Rear seat,
left/right Carry-cot
F ISO/L1 X
G ISO/L2 X
0
up to 10 kg
up to approximately 6 months E ISO/R1 IL
0+
up to 13 kg
up to approximately 15 months E ISO/R1 IL
D ISO/R2 IL
2
Child restraint systems with a supporting bracket are not suitable for this seat. Children in the vehicle
69Safety Z

Pets in the vehicle
G
WARNING
If you leave animals unsupervised or unse-
cured in the vehicle, they may push a button
or a switch, for example.
They could:
R activate vehicle equipment and become
trapped, for example
R switch vehicle systems on or off, thus
endangering other road users
In the event of an accident, sudden braking or
abrupt changes of direction, unsecured ani-
mals could be flung around the vehicle, injur-
ing the vehicle occupants. There is a risk of an accident and injury.
Never leave animals unattended in the vehi-
cle. Always secure animals correctly during a
journey, e.g. in an animal transport box. Driving safety systems
Driving safety systems overview
In this section, you will find information about the following driving safety systems:
R ABS ( Anti-lock BrakingSystem)
(Y page 73)
R BAS ( Brake Assist System) (Y page 74)
R COLLISION PREVENTION ASSIST PLUS
(Y page 74)
R Adaptive brake lamps (Y page 77)
R ESP ®
(Electronic StabilityProgram)
(Y page 77)
R EBD ( electronic brake force distribution)
(Y page 79)
R ADAPTIVE BRAKE (Y page 79)
R STEER CONTROL (Y page 79) Important safety notes
If you fail to adapt your driving style or if you
are inattentive, the driving safety systems can neither 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 stay- ing in lane. Always adapt your driving style to
suit the prevailing road and weather condi-
tions 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
adequate contact between the tyres and the
road surface. Please pay special attention to
the notes on tyres, recommended minimum
tyre tread depths etc. (Y page 352).
In wintry driving conditions, always use winter
tyres (M+S tyres) 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 notes 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 73). 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. Driving safety systems
73Safety
Z