2014 MERCEDES-BENZ B-CLASS HATCHBACK stop start

This steering support is provided in particular
if:
R both right wheels or both left wheels are on
a wet or slippery road surface when you
brake
R the vehicle starts to skid
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 73).
No steering support is provided from STEER
CONTROL, if:
R ESP ®
is malfunctioning
R the steering is faulty
If ESP ®
is malfunctioning, you will be assisted
further by the electrical power steering. Protection against theft
Immobiliser
The immobiliser prevents your vehicle from
being started without the correct key.
X To activate with the key: remove the key
from the ignition lock.
X To activate with KEYLESS-GO start func-
tion or KEYLESS-GO: switch the ignition
off and open the driver's door.
X To deactivate: switch on the ignition.
When leaving the vehicle, always take the key with you and lock the vehicle. Anyone can
start the engine if a valid key has been left
inside the vehicle.
i The immobiliser is always deactivated
when you start the engine. ATA (Anti-Theft Alarm system)
X
To prime: lock the vehicle with the key or
KEYLESS-GO.
Indicator lamp :flashes. The alarm sys-
tem is primed after approximately
15 seconds.
X To deactivate: unlock the vehicle with the
key or KEYLESS-GO.
or X Insert the key into the ignition lock.
A visual and audible alarm is triggered if the
alarm system is primed and you open: R a door
R the vehicle with the emergency key ele-
ment
R the tailgate
R the bonnet
X To switch the alarm off with the key:
press the %or& button on the key.
The alarm is switched off.
or X Vehicles with KEYLESS-GO start-func-
tion or KEYLESS-GO: remove the Start/
Stop button from the ignition lock
(Y page 159).
X Insert the key into the ignition lock.
The alarm is switched off. 80
Protection against theftSafety

X
To switch the alarm off using KEYLESS-
GO: grasp the outside door handle. The key
must be outside the vehicle.
The alarm is switched off.
or
X Press the Start/Stop button on the dash-
board. The key must be inside the vehicle.
The alarm is switched off.
The alarm is not switched off, even if you
close the open door that has triggered it, for
example.
i If the alarm stays on for more than
30 second s,the Mercedes‑Benz emer-
gency call system automatically sends a
message to the Customer Assistance
Centre. This is done by means of a text
message or a data connection.
The emergency call system sends a mes-
sage or establishes a data connection pro-
vided that:
R you have subscribed to the
Mercedes‑Benz emergency call system
R the Mercedes‑ Benz emergency call sys-
tem has been activated properly
R the necessary mobile phone network is
available Tow-away protection
Function An audible and visual alarm is triggered if your
vehicle's angle of inclination is altered while
tow-away protection is primed. This can occur if the vehicle is jacked up on one side, for
example.
Priming X
Make sure that: R
the doors are closed
R the tailgate is closed
Only then is the tow-away protection
primed.
X Lock the vehicle with the key or KEYLESS-
GO.
Tow-away protection is primed after
approximately 60 second s.
Switching off X
Unlo ck the vehicle with the key or KEY-
LESS-GO.
or X Insert the key into the ignition lock.
Tow-away protection is switched off auto-
matically.
Deactivating X
Remove the key from the ignition lock.
or X Vehicles with KEYLESS-GO start func-
tion or KEYLESS-GO: switch off the engine
using the Start/Stop button and open the
driver's door.
X Press button :.
Indicator lamp ;lights up briefly.
X Lock the vehicle with the key or KEYLESS-
GO.
Tow-away protection is deactivated. Protection against theft
81Safety Z

Tow-away protection remains deactivated
until:
R the vehicle is unlocked again
R a door is opened and closed again and
R the vehicle is locked again
To prevent a false alarm, deactivate tow-away protection if you lock your vehicle and it:
R is being transported
R is being loaded onto a ferry or car trans-
porter, for example
R is parked on a movable surface, e.g. in a
split-level garage Interior motion sensor
Function When the interior motion sensor is primed, a
visual and audible alarm is triggered if move- ment is detected in the vehicle interior. This
can occur if someone reaches into the vehicle
interior, for example.
Priming X
Make sure that:
R the side windows are closed
R the panorama sliding sunroof is closed
R there are no objects, e.g. mascots, hang-
ing on the rear-view mirror or on the grab handles on the roof trim
This will prevent false alarms.
X Make sure that:
R the doors are closed
R the panorama sliding sunroof is closed
R the tailgate is closed
Only then is the interior motion sensor
primed.
X Lock the vehicle with the key or KEYLESS-
GO.
The interior motion sensor is primed after
approximately 30 seconds. Switching off X
Unlock the vehicle with the key or KEY-
LESS-GO.
or X Insert the key into the ignition lock.
or X Press the Start/Stop button.
The key must be in the vehicle.
The interior motion sensor is automatically switched off.
Deactivating X
Remove the key from the ignition lock.
or X Vehicles with KEYLESS-GO start func-
tion or KEYLESS-GO: switch off the engine
using the Start/Stop button and open the
driver's door.
X Press button :.
Indicator lamp ;flashes several times in
rapid succession.
X Lock the vehicle with the key or KEYLESS-
GO.
The interior motion sensor is deactivated.
The interior motion sensor remains deactiva- ted until:
R the vehicle is unlocked again and
R a door is opened and closed again and
R the vehicle is locked again 82
Protection against theftSafety

Useful information
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variations are pos- sible. Note that your vehicle may not be
equipped with all of the functions descri-
bed. This is also the case for systems and
functions relevant to safety.
i Read the information on qualified special-
ist workshops: (Y page 24). Key
Important safety notes
G
WARNING
If children are left unsupervised in the vehicle, they could:
R open doors, thereby endangering other per-
sons or road users
R get out and be struck by oncoming traffic
R operate vehicle equipment and become
trapped, for example
In addition, the children could also set the
vehicle in motion, for example, if they:
R release the parking brake
R shift the automatic transmission out of park
position P or shift manual transmission into
neutral
R start the engine
There is a risk of an accident and injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children and animals unattended in the vehi-
cle. Keep the keys out of the reach of children. G
WARNING
If you attach heavy or large objects to the key, the key could be unintentionally turned in the
ignition lock. This could cause the engine to
be switched off. There is a risk of an accident. Do not attach any heavy or large objects to the
key. Remove any bulky keyrings before insert-
ing the key into the ignition lock.
! Keep the key away from strong magnetic
fields. Otherwise, the remote control func-
tion could be affected.
Strong magnetic fields can occur in the
vicinity of powerful electrical installations.
Do not keep the key:
R with electronic devices, e.g. a mobile
phone or another key
R with metallic objects, e.g. coins or metal
film
R inside metallic objects, e.g. a metal case
Vehicles with KEYLESS-GO start function: do not keep the key in the luggage compart-
ment. Otherwise, the key may not be detec-
ted, e.g. when starting the engine using the
Start/Stop button.
United Kingdom only: G
WARNING
When the double locks are activated, the
doors can no longer be opened from the
inside. People in the vehicle can no longer get out, e.g. in hazardous situations. There is a
risk of injury.
Therefore, do not leave any people unsuper-
vised in the vehicle, particularly children, eld-
erly people or people in need of special assis-
tance. Do not activate the double lock when
people are in the vehicle.
If the vehicle has been locked from the out-
side, the double-lock function is activated as
standard. It is then not possible to open the
doors from inside the vehicle. You can deac-
tivate the double lock function by deactivat-
ing the interior motion sensor (Y page 82).
The doors can then be opened from the inside after the vehicle has been locked from the
outside. You can open the rear doors from
inside the vehicle if they are not secured by
the child-proof locks (Y page 72). The anti-
theft alarm system is triggered if the door is 86
KeyOpening and closing

The KEYLESS-GO function is changed as fol-
lows:
X To unlock the driver's door: touch the
inner surface of the door handle on the
driver's door.
X To unlock centrally: touch the inner sur-
face of the door handle on the front-
passenger door or the rear door.
X To lock centrally: touch the outer sensor
surface on one of the door handles.
X To restore the factory settings: simulta-
neously press the %and& buttons
for approximately 6 seconds until the bat-
tery check lamp flashes twice
(Y page 90). Emergency key element
General notes If the vehicle can no longer be locked or
unlocked with the key or KEYLESS-GO, use
the emergency key element.
If you use the emergency key element to
unlock and open the driver's door or the tail-
gate, the anti-theft alarm system will be trig-
gered (Y page 80).
There are several ways to deactivate the
alarm:
X To deactivate the alarm with the key:
press the %or& button on the key.
or
X Insert the key into the ignition lock.
or
X To deactivate the alarm with KEYLESS-
GO: press the Start/Stop button in the igni-
tion lock. The key must be in the vehicle.
or
X Lock or unlock the vehicle using KEYLESS-
GO. The key must be outside the vehicle.
If you unlock the vehicle using the emergency
key element, the fuel filler flap will not be
unlocked automatically. X
To unlock the fuel filler flap: insert the
key into the ignition lock.
Removing the emergency key element X
Push release catch :in the direction of
the arrow and, at the same time, remove
emergency key element ;from the key.
Further information about:
R unlocking the driver's door (Y page 95)
R unlocking the luggage compartment
(Y page 97)
R locking the vehicle (Y page 96)
Inserting the emergency key element X
Push emergency key element ;com-
pletely into the key until it engages and
release catch :is back in its basic posi-
tion. Battery of the key
Important safety notes G
WARNING
Batteries contain toxic and corrosive substan- ces. If batteries are swallowed, it can result in
severe health problems. There is a risk of fatal injury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention immediately. Key
89Opening and closing Z

Problem
Possible causes/consequences and
M
MSolutions There is a fault with KEYLESS-GO.
X Lock/unlock the vehicle using the remote control function of
the key.
X Have the vehicle and key checked at a qualified specialist work-
shop.
If the vehicle can also not be locked/unlocked using the remote
control function:
X Unlock (Y page 95) or lock (Y page 96) the vehicle using the
emergency key element.
X Have the vehicle and key checked at a qualified specialist work-
shop. The engine cannot be
started using the key. The on-board voltage is too low
X Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary
(Y page 341).
or
X Jump-start the vehicle (Y page 342).
or
X Consult a qualified specialist workshop. The engine cannot be
started using the Start/
Stop button. The key is
in the vehicle. The vehicle is locked.
X Unlock the vehicle and try to start the vehicle again. The key battery is discharged or nearly discharged.
X Check the key battery (Y page 90) and replace if necessary
(Y page 90).
If this does not work: X Start your vehicle with the key in the ignition lock. There is interference from a powerful source of radio waves.
X Start your vehicle with the key in the ignition lock. 92
KeyOpening and closing

X
Turn the key to position 1or 2in the ignition
lock (Y page 159).
X To open manually: press and hold the cor-
responding button.
X To open fully: press the button beyond the
point of resistance and release it.
Automatic operation is started.
X To close manually: pull the corresponding
button and hold it.
X To close fully: pull the button beyond the
point of resistance and release it.
Automatic operation is started.
X To interrupt automatic operation:
press/pull the corresponding switch again.
i If you press/pull the switch beyond the
point of resistance, automatic operation is
started in the corresponding direction. You
can stop automatic operation by pressing/ pulling again.
i You can continue to operate the side win-
dows after switching off the engine or
removing the key. This function remains
active for five minutes or until the driver's
or front-passenger door is opened.
i The side windows cannot be operated
from the rear when the override feature for
the side windows is activated (Y page 72).Convenience opening feature
Vehicles with KEYLESS-GO, the KEYLESS-
GO start function, Exclusive Package or
AMG Exclusive Package: you can ventilate
the vehicle before you start driving.
The key can also be used to carry out the fol- lowing functions simultaneously:
R unlock the vehicle
R open the side windows
R open the panorama sliding sunroof and the
roller sunblind
i The convenience opening feature can
only be operated using the key. X
Vehicles with Exclusive Package or
AMG Exclusive Package but without
KEYLESS-GO and the KEYLESS-GO start
function: for the following operations,
point the tip of the key at the door handle
on the driver's door. The key must be close to the driver's door handle.
i Vehicles with KEYLESS-GO or the KEY-
LESS-GO start function: the key must be
in close proximity to the vehicle.
X Press and hold the %button until the
side windows and the panorama sunroof
are in the desired position.
If the roller sunblind of the panorama slid-
ing sunroof is closed, the roller sunblind is
opened first.
X Press and hold the %button again until
the panorama sliding sunroof is in the
desired position.
X To interrupt convenience opening:
release the %button. Convenience closing feature
Important safety notes G
WARNING
When the convenience closing feature is oper- ating, parts of the body could become trapped
in the closing area of the side window and the
sliding sunroof. There is a risk of injury.
Observe the complete closing procedure
when the convenience closing feature is oper-
ating. When closing make sure that no parts of the body are in the closing area.
Vehicles with KEYLESS-GO, the KEYLESS-
GO start function, Exclusive Package or
AMG Exclusive Package: at the same time
you can:
R lock the vehicle
R close the side windows
R close the panorama sliding sunroof
On vehicles with a panorama sliding sunroof, you can then close the roller sunblind. Side windows
99Opening and closing Z

!
Only open the panorama sliding sunroof if
it is free of snow and ice. Otherwise, mal-
functions may occur.
Do not allow anything to protrude from the sliding sunroof. Otherwise, the seals could
be damaged.
i Resonance noises can occur in addition to
the usual airflow noises when the sliding
sunroof is open. They are caused by minor
pressure fluctuations in the vehicle interior.
Change the position of the sliding sunroof
or open a side window slightly to reduce or
eliminate these noises. Sliding sunroof reversing feature
The sliding sunroof is equipped with an auto- matic reversing feature. If an object blocks or
restricts the sliding sunroof during the closing process, the sliding sunroof opens again
automatically. The automatic reversing fea-
ture is, however, only an aid and is no substi-
tute for your attention when closing the slid-
ing roof. G
WARNING
The reversing function does not react:
R to soft, light and thin objects, e.g. small fin-
gers
R over the last 4 mm of the closing movement
R during resetting
R when closing the sliding sunroof again man-
ually immediately after automatic reversing
This means that the reversing function cannot prevent someone being trapped in these sit-
uations. There is a risk of injury.
When closing make sure that no parts of the
body are in the closing area.
If someone is trapped:
R release the switch immediately or
R during automatic operation, press the
switch briefly in any direction
The closing process is stopped. Operating the sliding sunroof
Opening and closing Overhead control panel
:
To raise
; To open
= To close/lower
X Turn the key to position 1or 2in the ignition
lock (Y page 159).
X Make sure that the roller sunblind is open.
X Press or pull the 3switch in the corre-
sponding direction.
i If you press/pull the
3switch beyond
the point of resistance, automatic opera-
tion is started in the corresponding direc-
tion. You can stop automatic operation by
pressing/pulling again.
i After opening the sliding sunroof, the
roller sunblind automatically closes
slightly. This reduces drafts in the vehicle
interior.
i You can continue to operate the sliding
sunroof after switching off the engine or
removing the key. This function remains
active for five minutes or until you open a
front door.
i The sliding sunroof cannot be opened if a
roof carrier is fitted. In order to allow ven-
tilation of the vehicle interior, you can raise
the sliding sunroof.
If contact is made with a roof carrier
approved by Mercedes-Benz, the sliding
sunroof lowers slightly but remains raised
at the rear. Panorama sliding sunroof
103Opening and closing Z