2015 MERCEDES-BENZ B-CLASS HATCHBACK sensor

Doors
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.
Stow luggage or loads preferably in the luggage compartment. Observe the loading guidelines
(Y page 224).
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 with the key, the
double lock function is activated as standard. It
is then not possible to open the doors from
inside the vehicle. You can deactivate the dou-
ble 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). Unlocking and opening the doors
from the inside
X
Pull door handle ;.
If the door is locked, locking knob :pops up.
The door is unlocked and opens.
For all countries except the United Kingdom:
You can open a door from inside the vehicle
even if it has been locked. You can only open the rear doors from inside the vehicle if they are not secured by the child-proof locks (Y page 60).
If the vehicle has previously been locked with
the key from the outside, opening a door from
the inside will trigger the anti-theft alarm sys-
tem. Switch off the alarm (Y page 68).
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 78
DoorsOpening and closing

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). Centrally locking and unlocking the
vehicle from the inside
You can centrally lock or unlock the vehicle from
the inside. This can be useful if you wish to lock the vehicle before pulling away, for example. X
To unlock: press button :.
X To lock: press button ;.
If all the doors and the tailgate are closed, the
vehicle locks.
This does not lock or unlock the charge socket
flap.
You cannot unlock the vehicle centrally from the
inside if the vehicle has been locked with the key or KEYLESS-GO.
For all countries except the United Kingdom:
You can open a door from inside the vehicle
even if it has been locked.
If the vehicle has previously been locked with
the key from the outside, opening a door from
the inside will trigger the anti-theft alarm sys-
tem. Switch off the alarm (Y page 68).
You can open the rear doors from inside the
vehicle if they are not secured by the child-proof locks (Y page 60). When a locked door is opened from inside the
vehicle, the previous unlocking process will be
observed if the vehicle has been:
R locked with the locking button for the central
locking or
R locked automatically
The vehicle will be fully unlocked if it had previ-
ously been fully unlocked. Only the door which
has been opened from the inside is unlocked if
only the driver's door had been previously
unlocked.
Only for the United Kingdom: if the vehicle
has been locked with the key, the double lock
function is activated as standard. It is then not
possible to open the doors from inside the vehi-
cle. 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).
When a locked door is opened from inside the
vehicle, the previous unlocking process will be
observed if the vehicle has been:
R locked with the locking button for the central
locking or
R locked automatically
The vehicle will be fully unlocked if it had previ-
ously been fully unlocked. Only the door which
has been opened from the inside is unlocked if
only the driver's door had been previously
unlocked. Automatic locking feature Doors
79Opening and closing Z

AMG Exclusive Package:
when you lock the
vehicle, you can close the side windows at the
same time.
i Notes on the reversing feature for the side
windows (Y page 82).
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 are fully closed.
X To interrupt convenience closing: release
the & button.
Using KEYLESS-GO The driver's door and the door at which the han-
dle is used must both be closed. The key must beoutside the vehicle. The gap between the key
and the corresponding door handle should not
be greater than 1 m. X
Touch recessed sensor surface :on the
door handle until the side windows are fully
closed.
i Make sure you only touch recessed sensor
surface :.
X Make sure that all the side windows are
closed. X
To interrupt convenience closing: release
recessed sensor surface :on the door han-
dle. Resetting the side windows
If a side window can no longer be closed fully,
you must reset it.
X Close all doors.
X Turn the key to position 1or 2in the ignition
lock (Y page 126).
X Pull the corresponding switch on the door
control panel until the side window is com-
pletely closed (Y page 83).
X Hold the switch for an additional second.
If the side window opens again slightly:
X Immediately pull the corresponding switch on
the door control panel until the side window is completely closed (Y page 83).
X Hold the switch for an additional second.
X If the corresponding side window remains
closed after the button has been released, the
side window has been reset correctly. If this is not the case, repeat the steps above again. 84
Side windowsOpening and closing

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). Exterior lighting
General notes
For reasons of safety, Mercedes-Benz recom-
mends that you drive with the lights switched on
even during the daytime. In some countries,
operation of the headlamps varies due to legal
requirements and self-imposed obligations. Driving abroad
General notes If your journey takes you to countries where
vehicles are driven on the opposite side of the
road to the country in which the vehicle is reg-
istered, your headlamps must be switched to
symmetrical dipped beam as soon as possible
after crossing the border (only vehicles with
Intelligent Light System). This prevents oncom-
ing traffic from being dazzled. Symmetrical
lights do not illuminate as large an area of the
edge of the carriageway.
Vehicles with bi-xenon or halogen head-
lamps It is not necessary to switch your headlamps to
symmetrical dipped beam when driving in coun- tries where vehicles are driven on the opposite
side of the road to the country in which the vehi-
cle is registered. Legal requirements are fulfilled
without switching the headlamps to symmetri-
cal dipped beam. Vehicles with Intelligent Light System Before crossing the border, set the headlamps
to symmetrical dipped beam and after returning
back to asymmetrical dipped beam via the
"Dipped-beam headlamps for driving on the
right/left" function in the on-board computer
(Y page 187).
If the headlamps are converted to symmetrical
dipped beam, the "motorway mode" and "exten- ded range foglamps" functions are not available. Setting the exterior lighting
Setting options Exterior lighting can be set using the:
R light switch
R combination switch (Y page 99)
R headlamp range adjustment (only vehicles
with halogen headlamps) (Y page 99)
R on-board computer (Y page 186)
Light switch Operation
1
W
Left-hand parking lamps
2 X
Right-hand parking lamps
3 T
Side lamps, licence plate and instru-
ment cluster lighting
4 Ã
Automatic headlamp mode, controlled
by the light sensor
5L Dipped-beam/main-beam headlamps
B R
Rear foglamp
If you hear a warning tone when you leave the
vehicle, the lights may still be switched on.
X Turn the light switch to the Ãposition. Exterior lighting
97Lights and windscreen wipers

The exterior lighting (except the side lamps/
parking lamps) switches off automatically if you:
R remove the key from the ignition lock
R open the driver's door with the key in posi-
tion 0in the ignition lock.
Automatic headlamp mode à is the preferred light switch setting. The
light setting is automatically selected according to the brightness of the ambient light (excep-
tion: poor visibility due to weather conditions
such as fog, snow or spray):
R key in position 1in the ignition lock: the side
lamps are switched on or off automatically
depending on the brightness of the ambient
light
R with the drive system running: if you have
switched on the daytime driving lights func-
tion in the on-board computer, the daytime
driving lights or the side lamps and dipped-
beam headlamps are switched on or off auto-
matically depending on the brightness of the
ambient light
X To switch on the automatic headlamps:
turn the light switch to the
Ãposition. G
WARNING
When the light switch is set to Ã, the
dipped-beam headlamps may not be switched on automatically if there is fog, snow or othercauses of poor visibility due to the weather
conditions such as spray. There is a risk of an
accident.
In such situations, turn the light switch to
L.
The automatic headlamp feature is only an aid.
The driver is responsible for the vehicle lighting at all times.
The daytime driving lights improve the detecta-
bility of your vehicle during the day. To do this,
the daytime driving lights function must be
switched on via the on-board computer
(Y page 186).
When the side lamps and dipped-beam head-
lamps are switched on, the green T(side
lamps) and L(dipped-beam headlamps)
indicator lamps in the instrument cluster light
up. Dipped-beam headlamps
When the ignition is switched on and the light
switch is in the Lposition, the side lamps
and dipped-beam headlamps are switched on
even if the light sensor does not sense dark
ambient light conditions. This is advantageous
when there is fog or rain.
X To switch on the dipped-beam headlamps:
turn the key to position 2in the ignition lock
or start the drive system.
X Turn the light switch to L.
The green Lindicator lamp in the instru-
ment cluster lights up.
Rear foglamp The rear foglamp improves the visibility of your
vehicle in heavy fog for the following traffic.
Please observe the country-specific laws on the
use of rear foglamps.
X To switch on the rear foglamp: turn the key
to position 2in the ignition lock or start the
drive system.
X Turn the light switch to LorÃ.
X Press the Rbutton.
The yellow Rindicator lamp in the instru-
ment cluster lights up.
X To switch off the rear foglamp: press the
R button.
The yellow Rindicator lamp in the instru-
ment cluster goes out.
Side lamps
! If the battery charge level is very low, the
side lamps or parking lamps are switched off automatically in order to preserve energy to
start the drive system. Always park your vehi-
cle safely in a place that is adequately lit in
accordance with legal stipulations. Avoid
using the side lamps Tfor periods of sev-
eral hours. Where possible, switch the right-
hand X or left-hand Wparking lamp on.
X To switch on: turn the light switch to T.
The green Tindicator lamp in the instru-
ment cluster lights up.
Parking lamps Switching on the parking lamps ensures that the
corresponding side of the vehicle is illuminated. 98
Exterior lightingLights and windscreen wipers

The cornering light function improves the illu-
mination of the road over a wide angle in the
direction you are turning, enabling better visi-
bility in tight bends, for example. It can only be
activated when the dipped-beam headlamps are
switched on.
Active:
R if you are driving at speeds below 40 km/h
and switch on the turn signal or turn the steer- ing wheel.
R if you are driving at speeds between 40 km/h
and 70 km/h and turn the steering wheel.
The cornering light function may remain lit for a
short time, but is automatically switched off
after no more than three minutes.
Motorway mode Active:
if you are driving at a speed above
110 km/h and do not make any large steering
movements for at least 1,000 m or if you are
driving at a speed above 130 km/h.
Not active: if you are driving at speeds below
80 km/h following activation.
Extended range foglamps The extended range foglamps reduce the glare
experienced by the driver and improve the illu-
mination of the edge of the carriageway.
Active:
if you are driving at speeds below
70 km/h and you switch on the rear foglamp.
Not active: if, following activation, you are driv-
ing at speeds above 100 km/h or if you switch
off the rear foglamp. Adaptive Highbeam Assist
General notes You can use this function to set the headlamps
to change between dipped beam and main beam automatically. The system recognises vehicles
with their lights on, either approaching from theopposite direction or travelling in front of your
vehicle, and consequently switches the head-
lamps from main beam to dipped beam.
The system automatically adapts the dipped-
beam headlamp range depending on the dis-
tance to the other vehicle. Once the system no
longer detects any other vehicles, it switches on the main-beam headlamps again.
The system's optical sensor is located behind
the windscreen near the overhead control
panel. Exterior lighting
101Lights and windscreen wipers Z

Important safety notes
G
WARNING
Adaptive Highbeam Assist does not recognise road users:
R who have no lights, e.g. pedestrians
R who have poor lighting, e.g. cyclists
R whose lighting is blocked, e.g. by a barrier
In very rare cases, Adaptive Highbeam Assist
recognises road users too late or not at all. In
this, or in similar situations, the automatic
main-beam headlamps will not be deactivated
or activated regardless. There is a risk of an
accident.
Always carefully observe the traffic conditions and switch off the main-beam headlamps in
good time.
Adaptive Highbeam Assist cannot take into
account road, weather or traffic conditions.
Adaptive Highbeam Assist is only an aid. You are responsible for adjusting the vehicle's lighting
to the prevailing light, visibility and traffic con-
ditions.
In particular, the detection of obstacles can be
restricted if there is:
R poor visibility, e.g. due to fog, heavy rain or
snow
R dirt on the sensors or if the sensors are
obscured
Switching Adaptive Highbeam Assist
on/off X
To switch on: turn the light switch to Ã.
X Press the combination switch beyond the
pressure point in the direction of arrow :.
The _ indicator lamp in the multifunction
display lights up when it is dark and the light
sensor switches on the dipped-beam head-
lamps.
If you are driving at speeds above 25 km/h:
The headlamp range is set automatically
depending on the distance between the vehi- cle and other road users.
If you are driving at speeds above approx-
imately 30 km/h and no other road users are
recognised: The main-beam headlamps are switched on
automatically. The Kindicator lamp in the
instrument cluster also lights up.
If you are driving at speeds below 25 km/h or
other road users are recognised or the roads
are adequately lit:
The main-beam headlamps are switched off
automatically. The Kindicator lamp in the
instrument cluster goes out. The _indi-
cator lamp in the multifunction display
remains lit.
X To deactivate: move the combination switch
back to its normal position.
The _ indicator lamp in the multifunction
display goes out. Headlamps misted up on the inside
Certain climatic and physical conditions may
cause moisture to form in the headlamp. This
moisture does not affect the functionality of the headlamp. Interior lighting
Overview of interior lighting
Front overhead control panel :
p Switches the left-hand front reading
lamp on/off
; c Switches the front interior lighting on
= v Switches the rear interior lighting on/
off
? | Switches the front interior lighting/
automatic interior lighting control off 102
Interior lightingLights and windscreen wipers

!
If the windscreen wipers leave smears on
the windscreen after the vehicle has been
washed in an automatic car wash, this may be
due to wax or other residue. Clean the wind-
screen with washer fluid after an automatic
car wash. Combination switch
1
$ Windscreen wipers off
2 Ä Intermittent wipe, low (rain sensor set
to low sensitivity)
3 Å Intermittent wipe, high (rain sensor
set to high sensitivity)
4 ° Continuous wipe, slow
5 ¯ Continuous wipe, fast
B í Single wipe/î wipes the wind-
screen using washer fluid
X Turn the key to position 1or 2in the ignition
lock (Y page 126).
X Turn the combination switch to the corre-
sponding position.
! Vehicles with a rain sensor: if the wind-
screen becomes dirty in dry weather condi-
tions, the windscreen wipers may be activa-
ted inadvertently. This could damage the
windscreen wiper blades or scratch the wind- screen.
For this reason, you should always switch off
the windscreen wipers in dry weather.
Vehicles with a rain sensor: in the ÄorÅ
position, the appropriate wiping frequency is
automatically set according to the intensity of
the rain. In the Åposition, the rain sensor is
more sensitive than in the Äposition, caus-
ing the windscreen wiper to wipe more fre-
quently.
If the wiper blades are worn, the windscreen will
no longer be wiped properly. This could mean
you are unable to observe the traffic conditions. Switching the rear window wiper on/
off Combination switch
:
è Switch
2 ô Wipes with washer fluid
3 ISwitches on intermittent wiping
4 0Switches off intermittent wiping
5 ô Wipes with washer fluid
X Turn the key to position 1or 2in the ignition
lock (Y page 126).
X Slide switch :on the combination switch to
the corresponding position.
When the rear window wiper is switched on,
the è symbol appears in the assistance
graphic in the instrument cluster. Further
information on the assistance graphic
(Y page 182). Replacing the wiper blades
Important safety notes G
WARNING
If the windscreen wipers begin to move while
you are changing the wiper blades, you can be trapped by the wiper arm. There is a risk of
injury.
Always switch off the windscreen wipers and
ignition before changing the wiper blades.
! To avoid damaging the windscreen wiper
blades, make sure that you touch only the
wiper arm of the windscreen wiper.
! Never open the bonnet/tailgate if a wiper
arm is folded away from the windscreen/rear
window. Windscreen wipers
109Lights and windscreen wipers Z