2015 MERCEDES-BENZ B-CLASS HATCHBACK start stop button

Indicator lamps
Display message ............................ 201
see Warning and indicator lamps
Indicators
see Turn signals
Instrument cluster
Overview .......................................... 27
Power display ................................ 173
Settings ........................................ .186
Warning and indicator lamps ........... 28
Instrument cluster lighting .............. 172
Intelligent Light System
Activating/deactivating ................. 187
Display message ............................ 202
Overview ........................................ 100
Setting the dipped-beam head-
lamps for driving on the right/left .. 187
Interior lighting
Control .......................................... .103
Emergency lighting ........................ 103
Overview ........................................ 102
Reading lamp ................................. 102
Interior motion sensor
Deactivating ..................................... 69
Function .......................................... .69
Priming ............................................ 69
Switching off .................................... 69
ISOFIX child seat securing system ....50J
Jack Storage location ............................2 49
Using ............................................. 274 K
Key Changing the battery ....................... 75
Checking the battery ....................... 74
Convenience closing feature ............ 83
Convenience opening feature .......... 83
Display message ............................ 212
Door central locking/unlocking ....... 72
Emergency key element ................... 73
Important safety notes .................... 71
KEYLESS-GO start function .............. 73
Loss ................................................. 76
Modifying the programming ............. 73 Positions (ignition lock) ................. 126
Problem (malfunction) ..................... 76
Key positions
Start/Stop button .......................... 126
Key positions (ignition lock) ............ 126
KEYLESS-GO
Convenience closing ........................ 83
Deactivation ..................................... 72
Locking ............................................ 72
Unlocking ......................................... 72
Kickdown
Driving tips ................................... .131
Kneebag ............................................... 41 L
Lamps see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 183
Display message ............................ 206
Function/informatio n.................... 170
Lane package ..................................... 168
Lashing eyelets ................................. 229
Licence plate lamp (display mes-
sage) ................................................... 202
Licence plate lighting
Changing bulb s.............................. 108
Light sensor (display message) ....... 203
Lighting
see Lights
Lights
Activating/deactivating the Intel-
ligent Light System ........................ 187
Active light function ....................... 100
Adaptive Highbeam Assist ............. 101
Automatic headlamp mode .............. 98
Cornering light function ................. 100
Dipped-beam headlamp s................. 98
Driving abroad ................................. 97
Foglamps (extended range) ........... 101
Hazard warning lamps ................... 100
Headlamp flashe r........................... 100
Headlamp range .............................. 99
Light switch ..................................... 97
Main-beam headlamp s..................... 99
Misted up headlamp s.................... 102 10
Index

Snow chains
...................................... 269
Socket
Luggage compartment ...................2 36
Sockets
Centre console .............................. 235
General notes ................................ 235
Rear compartment ......................... 236
Specialist workshop ............................ 23
Spectacles compartment ................. 225
Speed, controlling
see Cruise control
Speedometer
Activating/deactivating the addi-
tional speedometer ........................ 186
Digital ............................................ 178
In the Instrument cluster ................. 27
Selecting a display unit .................. 186
SPEEDTRONIC
Deactivating variable ..................... 154
Function/notes ............................ .152
Important safety notes .................. 152
LIM indicator lamp ......................... 153
Selecting ........................................ 153
Storing the current spee d.............. 153
Variabl e......................................... 153
SPEEDTRONIC (variable)
Storing the current speed and
calling up the last stored speed ..... 153
Start/Stop button
Removing ....................................... 127
Starting the drive system ............... 127
Starting
the Vehicle ..................................... 127
Starting the vehicle. .......................... 127
STEER CONTROL .................................. 67
Steering
Display message ............................ 212
Steering assistant STEER CON-
TROL
see STEER CONTROL
Steering wheel
Adjusting (manually) ........................ 92
Button overview ............................... 29
Buttons (on-board computer) ......... 174
Cleaning ......................................... 247
Gearshift paddle s........................... 132
Important safety notes .................... 92 Steering wheel gearshift paddles
.... 132
Stowage compartment
Map pockets .................................. 227
Stowage compartments
Armrest (front) ............................... 225
Armrest (under) ............................. 226
Centre console .............................. 225
Centre console (rear) ..................... 226
Cup holde r..................................... 233
Glove compartment ....................... 225
Important safety information ......... 224
Spectacles compartment ............... 225
Under driver's seat/front-
passenger sea t.............................. 226
Stowage net ....................................... 227
Stowage space
Stowage net ................................... 227
Summer tyres .................................... 268
Sun visor ............................................ 234 T
Tail lamps see Lights
Tailgate
Display message ............................ 211
Emergency unlocking ....................... 81
Important safety notes .................... 81
Opening dimensions ...................... 284
Opening/closing (from outside) ....... 81
Technical data
Capacities ...................................... 282
Information .................................... 280
Tyres/wheels ................................. 277
Vehicle data ................................... 284
Telephone
Accepting a call (multifunction
steering wheel) .............................. 181
Display message ............................ 212
Introduction ................................... 181
Menu (on-board computer) ............ 181
Number from the phone book ........ 181
Redialling ....................................... 182
Rejecting/ending a call ................. 181
Telephone compartment ................ 226
Temperature
Outside temperature ...................... 172
Setting (climate control )................ 117 Index
15

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

ATA (Anti-Theft Alarm system)
X
To prime: lock the vehicle with the key or
KEYLESS-GO.
Indicator lamp :flashes. The alarm system
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 element
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 deactivated.
or X Vehicles with KEYLESS-GO start-function
or KEYLESS-GO: remove the Start/Stop but-
ton from the ignition lock (Y page 126).
X Insert the key into the ignition lock.
The alarm is deactivated.
X To deactivate the alarm using KEYLESS-
GO:
grasp the outside door handle. The key
must be outside the vehicle.
The alarm is deactivated.
or X Press the Start/Stop button on the dash-
board. The key must be inside the vehicle.
The alarm is deactivated.
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 seconds, the Mercedes ‑Benz emergencycall system automatically sends a message to
the Customer Assistance Centre. This is done by means of a text message or a data con-
nection.
The emergency call system sends a message
or establishes a data connection provided
that:
R you have subscribed to the Mercedes ‑Benz
emergency call system
R the Mercedes‑Benz emergency call system
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 exam-
ple.
Activating X
Make sure that:
R the doors are closed
R the tailgate is closed
Only then is tow-away protection primed.
X Lock the vehicle with the key or KEYLESS-GO.
Tow-away protection is primed after approx-
imately 60 seconds.
Switching off X
Unlock the vehicle with the key or KEYLESS-
GO.
or X Insert the key into the ignition lock.
Tow-away protection is switched off automat-
ically. 68
Protection against theftSafety

Deactivating
X
Remove the key from the ignition lock.
or X Vehicles with KEYLESS-GO start function
or KEYLESS-GO: switch off the drive system
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.
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 transporter,
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 inte-
rior, for example.
Activating X
Make sure that: R
the side windows are closed
R there are no objects, e.g. mascots, hanging
on the rear-view mirror or on the grab han- dles on the roof trim
This will prevent false alarms.
X Make sure that:
R the doors are 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 KEYLESS-
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 function
or KEYLESS-GO: switch off the drive system
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. Protection against theft
69Safety Z

Useful information
i This Owner's Manual describes all models,
series and optional equipment for your vehi-
cle that were available at the time of going to
press. National variations are possible. Note
that your vehicle may not be equipped with all
of the functions described. This is also the
case for systems and functions relevant to
safety.
i Read the information on qualified specialist
workshops: (Y page 23). 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 by, for example:
R releasing the parking brake
R shifting the transmission out of park posi-
tion P
R starting the vehicle's drive system
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 function could be affected.
Strong magnetic fields can occur in the vicin-
ity 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 compartment.
Otherwise, the key may not be detected, e.g.
when starting the drive system 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 outside, the double lock function is activated as stand-
ard. It is then not possible to open the doors
from inside the vehicle. You can deactivate the
double lock function by deactivating the interior
motion sensor (Y page 69). 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 60).
The anti-theft alarm system is triggered if the
door is opened from the inside. Switch off the
alarm (Y page 68). G
WARNING
If persons (particularly children) are exposed
to heat or cold for a prolonged period, there is a risk of serious or even fatal injuries. Never
leave persons (particularly children) unatten-
ded in the vehicle. Key
71Opening and closing Z

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 ignition
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 charge socket flap will not be
unlocked automatically.
Removing the emergency key element X
Push release catch :in the direction of the
arrow and, at the same time, remove emer-
gency key element ;from the key.
Further information about:
R unlocking the driver's door (Y page 80)
R unlocking the luggage compartment
(Y page 81)
R locking the vehicle (Y page 80)
Inserting the emergency key element X
Push emergency key element ;completely
into the key until it engages and release
catch :is back in its basic position. 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. H
Environmental note Batteries contain pollutants.
It is illegal to dispose of them
with the household rubbish.
They must be collected sep-
arately and disposed of in anenvironmentally responsible
recycling system. Dispose of batteries in an
environmentally responsible
manner. Take discharged
batteries to a qualified spe-
cialist workshop or to a col-
lection point for used batter-
ies.
Mercedes-Benz recommends that you have the
battery replaced at a qualified specialist work-
shop.
Checking the battery X
Press the &or% button.
The battery is working properly if battery
check lamp :lights up briefly. 74
KeyOpening and closing

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 con-
trol function:
X Lock (Y page 80) or unlock (Y page 80) the vehicle using the
emergency key element.
X Have the vehicle and key checked at a qualified specialist work-
shop. The drive system 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 drive system again.
If this does not work: X Check the 12 V battery and charge it if necessary (Y page 256).
or
X Check the high-voltage battery and charge it if necessary
(Y page 135).
or
X Jump-start the vehicle (Y page 258).
or
X Consult a qualified specialist workshop. The drive system 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 74) and replace it if necessary
(Y page 75).
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. You have lost a key. X
Have the key deactivated at a qualified specialist workshop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. You have lost the emer-
gency key element. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. Key
77Opening and closing Z