2015 MERCEDES-BENZ B-CLASS HATCHBACK length

Windowbags
Windowbags
:are integrated into the side of
the roof frame and deploy in the area from the A-
pillar to the C-pillar.
When deployed, the windowbag enhances the
level of protection for the head. However, it does
not protect the chest or arms.
In the event of a side impact, the windowbag is
deployed on the side on which the impact
occurs.
If the system determines that they can offer
additional protection to that provided by the
seat belt, a windowbag may be deployed in other accident situations (Y page 46).Automatic front-passenger front air-
bag deactivation
Introduction In order to recognise a child restraint system on
the front-passenger seat, the automatic front-
passenger front airbag deactivation system cat- egorises the person in the front-passenger seat.
Depending on that result, the front-passenger
front airbag is either enabled or disabled. If a
rearward-facing child restraint system is fitted
to the front-passenger seat, the PASSENGER
AIR BAG OFF indicator lamp must light up after
the system self-test and remain lit. The front-
passenger front airbag is disabled.
The system does not disable:
R the sidebag
R the windowbag
R the seat belt tensioner
Make sure that your vehicle is equipped with the automatic front-passenger front airbag deacti-
vation system (Y page 52). If this is not the case, always install a child restraint system on a
suitable rear seat (Y page 54).
If it is absolutely necessary to install a child
restraint system on the front-passenger seat, be sure to observe the correct positioning of the
child restraint system. Never place objects
under or behind the child restraint system, e.g. a
cushion. Fully retract the seat cushion length.
The entire base of the child restraint system
must always rest on the seat cushion of the
front-passenger seat. The backrest of the
forward-facing child restraint system must, as
far as possible, be resting on the backrest of the
front-passenger seat. The child restraint system
must not touch the roof or be put under strain by the head restraint. Adjust the angle of the seat
backrest and the head restraint position accord- ingly. Only then is the correct function of the
automatic front-passenger front airbag deacti-
vation system guaranteed. Always observe the
information on suitable positioning of the child
restraint system (Y page 54) in addition to the
child restraint system manufacturer's installa-
tion 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 ena-
bled. 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 simul-
taneously for approximately six seconds. 42
Occupant safetySafety

This poses an increased risk of injury or even
fatal injury.
Always move the front-passenger seat as far
back as possible and fully retract the seat
cushion length. Always make sure that the
shoulder belt strap is correctly routed from
the vehicle belt outlet to the shoulder belt
guide on the child restraint system. The shoul-
der belt strap must be routed forwards and
downwards from the vehicle belt outlet. If
necessary, adjust the vehicle belt outlet and
the front-passenger seat accordingly. Always
observe the information about suitable posi-
tioning of the child restraint system in this
Owner's Manual as well as the child restraint system manufacturer's installation instruc-
tions.
If the automatic front-passenger front airbag
deactivation system detects that:
R the front-passenger seat is unoccupied, the
PASSENGER AIR BAG OFF indicator lamp
lights up after the system self-test and
remains lit. This indicates that the front-
passenger front airbag is disabled.
R the front-passenger seat is occupied by a
child in a rearward-facing child restraint sys-
tem, the PASSENGER AIR BAG OFF indicator
lamp lights up after the system self-test and
remains lit. This indicates that the front-
passenger front airbag is disabled.
But in the case of a child in a rearward-facing
child restraint, the PASSENGER AIR BAG ON
indicator lamp can light up after the system
self-test and remain lit. This indicates that the
front-passenger front airbag is enabled. The
result of the classification is dependent on,
among other factors, the child restraint sys-
tem and the child's build. It is recommended
that you fit the child restraint system to a
suitable rear seat.
R the front-passenger seat is occupied by a
child in a forward-facing child restraint sys-
tem, either the PASSENGER AIR BAG ON or
PASSENGER AIR BAG OFF indicator lamp
lights up and remains lit after the system self- test depending on the result of the classifica-tion. The result of the classification is depend-
ent on, among other factors, the child
restraint system and the child's build. Move the front-passenger seat as far back as
possible. Always observe the information in
"Child restraint systems on the front-
passenger seat" (Y page 52) and in "Suita-
ble positioning of the child restraint system"
(Y page 54). Alternatively, you can fit the
child restraint system to a suitable rear seat.
R the front-passenger seat is occupied by a per-
son with a smaller build (e.g. a teenager or
small adult), either the PASSENGER AIR BAG
ON or PASSENGER AIR BAG OFF indicator
lamp lights up and remains lit after the system
self-test depending on the result of the clas-
sification.
- if the PASSENGER AIR BAG ON indicator
lamp lights up, move the front-passenger
seat as far back as possible. Alternatively, 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 corresponding
to that of an adult, the PASSENGER AIR BAG
ON indicator lamp lights up after the system
self-test and remains lit. This indicates 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 vehicle"
(Y page 49).
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 simultaneously.
The front-passenger front airbag is disabled in
this case and does not deploy during an acci-
dent. Have the system checked as soon as pos-
sible 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 or the seat cushion is damaged, have the necessary
repair work carried out at a Mercedes-Benz Ser-vice Centre.
For safety reasons, Mercedes-Benz recom-
mends that you only use a child restraint system
which has been tested and approved by
Mercedes-Benz in combination with the auto-
matic front-passenger front airbag deactivation
system. 44
Occupant safetySafety

Problems with automatic front-passenger front airbag deactivation
Be sure to observe the notes on "System self-test" (Y
page 45).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 per-
son with a build corre-
sponding to that of an
adult. The classification of the person on the front-passenger seat is false.
X Make sure the conditions for a correct classification of the person
on the front-passenger seat are met (Y page 42).
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 sys-
tem checked as soon as possible at a Mercedes-Benz Service
Centre. The PASSENGER AIR
BAG OFF indicator lamp
does not light up and/or
does not stay on.
The front-passenger seatis:
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 Make sure that the seat cushion length is fully retracted.
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 sys-
tem checked as soon as possible at a Mercedes-Benz Service
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
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 46
Occupant safetySafety

Forward-facing child restraint system
If it is absolutely necessary to fit a forward-
facing child restraint system to the front-
passenger seat, always move the front-
passenger seat as far back as possible. Fully
retract the seat cushion length. The entire base of the child restraint system must always rest on
the seat cushion of the front-passenger seat.
The backrest of the child restraint system must, as far as possible, lie flat against the backrest of
the front-passenger seat. The child restraint sys- tem must not touch the roof or be put under
strain by the head restraint. Adjust the angle of
the seat backrest and the head restraint posi-
tion accordingly. Always make sure that the
shoulder belt strap is correctly routed from the
vehicle belt outlet to the shoulder belt guide on the child restraint system. The shoulder belt
strap must be routed forwards and downwards
from the vehicle belt outlet. If necessary, adjust
the vehicle belt outlet and the front-passenger
seat accordingly.
Always observe the information on suitable
positioning of the child restraint system
(Y page 54) in addition to the child restraint
system manufacturer's installation and operat-
ing instructions. Suitable positioning of the child
restraint system
Introduction Only child restraint systems approved in accord-
ance with the ECE standards ECE R44 or ECE
R129 (i-Size child restraint systems) are permit- ted for use in the vehicle.
For certain child restraint systems in weight cat-egories II or III, this can mean that the area of
use is restricted. The maximum size setting of
the child restraint system is not possible due to
possible contact with the roof.
"Universal" category child restraint systems can be recognised by their orange approval label and
the text "Universal" or an "i-Size" label. Example: approval labels on the child restraint
system
ISOFIX or i-Size child restraint systems of the
“Universal“ category can be used on seats label-
led U, UF, IUF or i-U in accordance with the fol-
lowing tables:
R Suitability of the seats for attaching belt-
secured child restraint systems
R Suitability of the seats for attaching ISOFIX
child restraint systems
R Suitability of the seats for attaching an i-Size
child restraint system.
Semi-universal child restraint systems are indi-
cated by the text "semi-universal" on the
approval label. These can be used if the vehicle and the seat are listed in the child restraint sys-
tem manufacturer's vehicle model list. For more
information, contact the child restraint system
manufacturer or visit their website.
Child restraint system on the front-
passenger seat – if it is absolutely necessary to
secure a child in a child restraint system on the front-passenger seat:
X Always pay attention to the instructions under
"Child restraint system on the front-
passenger seat" (Y page 52).
There you will find instructions on how to cor- rectly route the shoulder belt strap from the 54
Children in the vehicleSafety

vehicle belt outlet to the shoulder belt guide
on the child restraint system (Y
page 54).
X Move the front-passenger seat as far back as
possible and fully retract the seat cushion
length.
If you secure a child in a forward-facing child
restraint system on the front-passenger seat,
you must also move the front-passenger seat to the highest position.
X Move the backrest to an almost vertical posi-
tion.
The entire base of the child restraint system
must always rest on the seat cushion of the
front-passenger seat. The backrest of the
forward-facing child restraint system must, as far as possible, be resting on the backrest of
the front-passenger seat. The child restraint
system must not touch the roof or be put
under strain by the head restraint. Adjust the angle of the seat backrest and the head
restraint position accordingly. Also observe
the child restraint system manufacturer's
installation instructions.
X If possible, move the seat cushion angle to the
highest, most vertical position (Y page 88). Children in the vehicle
55Safety Z

Adjusting the seats manually
Vehicles without the seating comfort
package Seat fore-and-aft adjustment:
X Lift handle :and slide the seat forwards or
backwards.
X Release lever :again.
Make sure that you hear the seat engage in
position.
Backrest angle: X Relieve the pressure on the backrest.
X Turn handwheel =forwards or backwards.
Seat height: X Pull handle ;upwards or push it down
repeatedly until the seat has reached the
desired height.
Vehicles with the seating comfort pack-
age Seat fore-and-aft adjustment:
X
Lift handle :and slide the seat forwards or
rearwards.
X Release lever :again.
Make sure that you hear the seat engage in
position.
Backrest angle:
X Relieve the pressure on the backrest.
X Turn handwheel Aforwards or backwards.
Seat height: X Pull handle ?upwards or push it down
repeatedly until the seat has reached the
desired height.
Seat cushion angle: X Adjust the angle so that your thighs have gen-
tle support.
X Turn handwheel =forwards or backwards.
Seat cushion length:
X Lift handle ;and slide the front part of the
seat cushion forwards or backwards.
X Release lever ;again.
The seat cushion engages. Adjusting the seats electrically
:
Seat height
; Seat cushion angle
= Seat fore-and-aft adjustment
? Backrest angle
i You can store the seat settings using the
memory function (Y page 96).88
SeatsSeats
, steering wheel and mirrors

You must open the side trim panel in the luggage
compartment before you can replace the bulbs
in the tail lamps.
X To open: Turn release knob :anti-clockwise
and remove side trim panel ;.
X To close: insert side trim panel ;and turn
release knob :clockwise.
Tail lamps Turn signals
X Switch off the lights.
X Open the luggage compartment.
X Open the side trim panel (Y page 106).X
Turn bulb holder :anti-clockwise and pull
out.
X Press the bulb lightly, turn it anti-clockwise
and remove it.
X Insert the new bulb and turn it clockwise.
X Insert bulb holder :and turn it clockwise
until it engages.
X Close the side trim panel (Y page 106).
Reversing lamp and rear foglamp Due to their location, have the bulbs in the
reversing lamp and the foglamp in the tailgate
replaced at a qualified specialist workshop. X
Switch off the lights.
X Open the tailgate.
X In recess ?on the inside of the closing han-
dle, prise out and unclip ;the upper section
of handle =with a flat and smooth object,
e.g. a screwdriver and remove.
X Pull the lower section of handle :with a
strong tug to remove it from the trim and then place it to one side. X
Reach under the right-hand side of trim B
and lightly tug along the entire length of the
trim in order to unclip Ait.
X Pull out connector Cof the surround lighting
by releasing the latches.
X Place trim Bto one side. Replacing bulbs
107Lights and windscreen wipers Z

Applying automatically
When the vehicle's HOLD function is holding the
vehicle at a standstill, the electric parking brake is engaged automatically.
In addition, at least one of the following condi-
tions must be fulfilled:
R the drive system is switched off
R the driver's door is open and the seat belt is
not fastened
R there is a system malfunction
R the power supply is insufficient
R the vehicle is stationary for a lengthy period
The red !indicator lamp in the instrument
cluster lights up.
Releasing automatically The electric parking brake of your vehicle is
released automatically when all of the following
conditions are fulfilled:
R the vehicle has been started
R the transmission is in position Dor R
R the seat belt is fastened
R you depress the accelerator pedal
If the transmission is in position R, the tailgate
must be closed.
If your seat belt is not fastened, the following
conditions must be fulfilled to automatically
release the electric parking brake:
R the driver's door is closed
R you have shifted out of transmission position
P or you have previously driven faster than
3 km/h
Ensure that you do not depress the accelerator
pedal unintentionally. Otherwise, the parking
brake will be released and the vehicle will start
to move.
Emergency braking The vehicle can also be braked during an emer-
gency by using the electric parking brake.
X While driving, push handle :of the electric
parking brake (Y page 146).
The vehicle is braked as long as you keep
handle :of the electric parking brake
pressed. The longer the electric parking brake
handle :is depressed, the greater the brak-
ing force. During braking:
R a warning tone sounds
R the Release parking brake
Release parking brake message
appears
R the red !indicator lamp in the instrument
cluster flashes
When the vehicle has been braked to a stand-
still, the electric parking brake is applied. Parking up the vehicle
If you leave the vehicle parked up for longer than
four weeks, the battery may be damaged by
exhaustive discharging.
If you leave the vehicle parked up for longer than
six weeks, it may suffer from lack of use.
X Visit a qualified specialist workshop and seek
advice.
i You can obtain information about trickle
chargers from a qualified specialist work-
shop. Driving tips
General notes
Important safety notes G
WARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect, for example, the power steering and the brake
boosting effect. You will require considerably
more effort to steer and brake. There is a risk of an accident.
Do not switch off the ignition while driving.
Your vehicle is powered by an electric motor.
The electric motor draws the energy required to
drive the vehicle from the high-voltage battery.
When braking and rolling, kinetic energy is con- verted into electrical energy by energy recovery
and stored in the high-voltage battery.
The range of the vehicle is reduced when con-
sumers are switched on, e.g. THERMOTRONIC. Driving tips
147Driving and pa rking Z