2015 MERCEDES-BENZ B-CLASS HATCHBACK ECO mode

The rear-view mirror and the exterior mirror on
the driver's side automatically go into anti-daz-
zle mode if:
R the ignition is switched on and
R incident light from headlamps strikes the sen-
sor in the rear-view mirror
The mirrors do not go into anti-dazzle mode if
reverse gear is engaged or if the interior lighting
is switched on. Parking position of the exterior mirror
on the front-passenger side
General notes The "Parking position for the exterior mirror on
the front-passenger side" function is only avail-
able if the vehicle is equipped with the "Memory
package".
Setting and storing the parking position You can set the front-passenger side exterior
mirror so that you can see the rear wheel on that side as soon as you engage reverse gear. You
can store this position.
Using reverse gear :
Button for the exterior mirror on the driver's
side
; Button for the exterior mirror on the front-
passenger side
= Adjustment button
? Memory button M
X Make sure that the vehicle is stationary.
X Turn the key to position 2in the ignition lock
(Y page 126). X
Press button ;for the exterior mirror on the
front-passenger side.
X Engage reverse gear.
The exterior mirror on the front-passenger
side moves to the preset parking position.
X Use adjustment button =to adjust the exte-
rior mirror. You should see the rear wheel and
the kerb in the exterior mirror.
The parking position is stored.
i If you shift the transmission to another posi-
tion, the exterior mirror on the front-
passenger side returns to the driving position.
Using the memory button You can set the front-passenger side exterior
mirror so that you can see the rear wheel on that
side as soon as you engage reverse gear. This
setting can be stored using memory button
M ?.
X Make sure that the vehicle is stationary.
X Turn the key to position 2in the ignition lock
(Y page 126).
X Press button ;for the exterior mirror on the
front-passenger side.
X Use adjustment button =to adjust the exte-
rior mirror. You should see the rear wheel and
the kerb in the exterior mirror.
X Press memory button M? and one of the
arrows on adjustment button =within three
seconds.
The parking position is stored if the exterior
mirror does not move.
X If the mirror moves out of position, repeat the
steps.
Calling up a stored parking position X
Turn the key to position 2in the ignition lock
(Y page 126).
X Adjust the exterior mirror on the front-
passenger side with the corresponding but-
ton (Y page 93).
X Engage reverse gear.
The exterior mirror on the front-passenger
side moves to the stored parking position. Mirrors
95Seats, steering wheel and mirrors 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). 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

Headlamp flasher
X
To switch on: turn the key in the ignition lock
to position 1or 2or start the drive system.
X Pull the combination switch in the direction of
arrow =. Headlamp cleaning system
Vehicles with bi-xenon headlamps: the head-
lamps are cleaned automatically if the "Wipe
with washer fluid" function is operated five
times (Y page 108) while the lights are on and
the drive system is running. When you switch off the ignition, the automatic headlamp cleaning
system is reset and counting is resumed from 0. Hazard warning lamps
X
To switch on the hazard warning lamps:
press button :.
All turn signals flash. If you now switch on a
turn signal using the combination switch, only the turn signal lamp on the corresponding
side of the vehicle will flash.
X To switch off the hazard warning lamps:
press button
:.
The hazard warning lamps switch on automati-
cally if:
R an airbag is deployed or
R the vehicle decelerates rapidly from a speed
of above 70 km/h and comes to a standstill
The hazard warning lamps switch off automati-
cally if the vehicle reaches a speed of above
10 km/h again after a full brake application.
The hazard warning lamps continue to operate
even if the ignition is switched off. Intelligent Light System
General notes The Intelligent Light System is a system that
adjusts the headlamps automatically to suit the
prevailing driving and weather conditions. It
offers advanced functions for improved illumi-
nation of the road surface, e.g. depending on the vehicle speed or weather conditions. The sys-
tem includes the active light function, corneringlight function, motorway mode and extended
range foglamps. The system is only active when it is dark.
You can activate or deactivate the "Intelligent
Light System" function using the on-board com-
puter (Y page 187).
Active light function The active light function is a system that moves
the headlamps according to the steering move-
ments of the front wheels. In this way, relevant
areas remain illuminated while you are driving.
This allows you to recognise pedestrians,
cyclists and animals.
Active: when the lights are switched on.
Cornering light function 100
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

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). Overview of climate control systems
General notes
Observe the settings recommended on the fol-
lowing pages. The windows could otherwise
mist up.
To prevent the windows from misting up:
R switch off climate control only briefly
R activate air-recirculation mode only briefly
R activate the "Cooling with air dehumidifica-
tion" function
R activate the windscreen demisting function
briefly, if required
THERMOTRONIC automatic climate control reg-
ulates the temperature and the humidity in the
vehicle interior and filters undesirable substan-
ces out of the air.
THERMOTRONIC automatic climate control is
only operational when the vehicle is ready to
drive. Optimum operation is only achieved with
the side windows closed.
The residual heat function can only be activated or deactivated with the ignition switched off
(Y page 122).
Always keep the ventilation flaps behind the
side panelling clear (Y page 106). Otherwise the
vehicle will not be ventilated correctly.
i Ventilate the vehicle for a brief period during
warm weather, e.g. using the convenience
opening feature (Y page 83). This will speed
up the cooling process and the desired inte-
rior temperature will be reached more
quickly.
i The integrated filter filters out most parti-
cles of dust and soot and completely filters
out pollen. It also reduces gaseous pollutants and odours. A clogged filter reduces the
amount of air supplied to the vehicle interior.
For this reason, you should always observe
the interval for replacing the filter, which is
specified in the Service Booklet. As this
depends on environmental conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Service Booklet.
i Vehicles with auxiliary heating:
under
certain environmental conditions, the resid-
ual heat function may be activated automati-
cally an hour after the key has been removed
in order to dry the automatic climate control.
When the automatic climate control drying
function is active, the blue LED lamp is lit in
the rocker switch in the centre console. The
vehicle is then ventilated for 30 minutes.
Vehicles without auxiliary heating: under
certain environmental conditions, the resid-
ual heat function may be activated automati-
cally an hour after the key has been removed in order to dry the automatic climate control.
The vehicle is then ventilated for 30 minutes. 114
Overview of climate control systemsClimate control

Control panel for THERMOTRONIC automatic climate control (2-zone)
:
To set the temperature, left (Y page 117)
; To set climate control to automatic mode (Y page 117)
= To demist the windscreen (Y page 118)
? To increase the airflow (Y page 118)
A To set the air distribution (Y page 117)
B Display
C To activate/deactivate air-recirculation mode (Y page 120)
D To switch climate control on/off (Y page 116)
E To set the temperature, right (Y page 117)
F To activate/deactivate the residual heat function (Y page 122)
G To activate/deactivate cooling with air dehumidification (Y page 116)
H To reduce the airflow (Y page 118)
I To switch the rear window heating on/off (Y page 119)
J To switch the ZONE function on/off (Y page 118)Information on using THERMOTRONIC
automatic climate control
Automatic climate control The following contains instructions and recom-
mendations to enable you to get the most out of
your THERMOTRONIC automatic climate con-
trol.
R Activate climate control using the Ãand
¿ buttons. The indicator lamps in the
à and¿ buttons light up.
R Set the temperature to 22 †.
R Only use the "Windscreen demisting" function
briefly until the windscreen is clear again. R
Only use air-recirculation mode briefly, e.g. if
there are unpleasant outside odours or when
in a tunnel. The windows could otherwise mist up as no fresh air is drawn into the vehicle inair-recirculation mode.
R Use the ZONE function to adopt the temper-
ature settings on the driver's side for the
front-passenger side as well. The indicator
lamp in the ábutton goes out.
R Use the residual heat function if you want to
briefly heat or ventilate the vehicle interior
when the ignition is switched off. The residual heat function can only be activated or deac-
tivated with the ignition switched off.
R If you change the settings of the climate con-
trol system, the climate status display Overview of climate control systems
115Climate control

appears for approximately three seconds at
the bottom of the screen in the Audio/
COMAND display (see separate operating
instructions). You will see the current settings
of the various climate control functions.
You can choose between various drive programs
with the program selector button (Y page 131).
If you have selected drive program E+:
R the cooling output is reduced when cooling
R the heat output is reduced during heating
R the rear window heating time is reduced
If you have selected drive program Eor S, the
current climate settings are maintained. Operating the climate control system
Switching the climate control on/off
General notes When the climate control is switched off, the air
supply and air circulation are also switched off.
The windows could mist up. Therefore, only
switch off climate control briefly.
THERMOTRONIC automatic climate
control X
Turn the key to position 2in the ignition lock
(Y page 126).
X To activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to auto-
matic mode.
or X Press the ^button.
The indicator lamp in the ^button goes
out. The previous settings are reactivated.
X To deactivate: press the^button.
The indicator lamp in the ^button lights
up.
i Activate climate control primarily using the
à button. Activating/deactivating cooling with
air dehumidification
General notes If you deactivate the "Cooling with air dehumid-
ification" function, the air inside the vehicle will
not be cooled. The air inside the vehicle will also
not be dehumidified. The windows can mist up
more quickly. Therefore, only deactivate the
"Cooling with air dehumidification" function
briefly.
The "Cooling with air dehumidification" function
is operational when the vehicle is ready to drive. The air inside the vehicle is cooled and dehu-
midified according to the temperature selected.
Condensation may drip from the underside of
the vehicle when cooling mode is active. This is
normal and not a sign that there is a malfunc-
tion.
Activating/deactivating X
To activate: press the¿button.
The indicator lamp in the ¿button lights
up.
X To deactivate: press the¿button.
The indicator lamp in the ¿button goes
out. The cooling with air dehumidification
function has a delayed switch-off feature. 116
Operating the climate control systemClimate control

Problems with the rear window heating
Problem
Possible causes/consequences and
M
MSolutions The rear window heating
has switched off prema-
turely or cannot be acti-
vated. The battery has not been sufficiently charged.
X Switch off any consumers that are not required, e.g. reading lamps,
interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window heating
can be activated again. Switching air-recirculation mode
on/off
General notes You can deactivate the flow of fresh air if
unpleasant odours are entering the vehicle from
outside. The air already inside the vehicle will
then be recirculated.
If you activate air-recirculation mode, the win-
dows can mist up more quickly, in particular at
low temperatures. Only use air-recirculation
mode briefly to prevent the windows misting up.
Switching on/off X
Turn the key to position 2in the ignition lock
(Y page 126).
X To activate: press theebutton.
The indicator lamp in the ebutton lights
up.
Air-recirculation mode is activated automati-
cally:
R at high outside temperatures
R at high levels of pollution
When air-recirculation mode is activated auto-
matically, the indicator lamp in the ebutton
is not lit. Outside air is added after about
30 minutes.
X To deactivate: press theebutton.
The indicator lamp in the ebutton goes
out. i
Air-recirculation mode is deactivated auto-
matically:
R after approximately five minutes at outside
temperatures below approximately 7 †
R after approximately five minutes if the
"Cooling with air dehumidification" func-
tion is deactivated
R after approximately 30 minutes at outside
temperatures above approximately 7 † if
the cooling with air dehumidification func-
tion is activated Convenience opening or closing using
the air-recirculation button G
WARNING
When using convenience closing, you could
become trapped within the sweep of the clos- ing window. There is a risk of injury.
Monitor the entire closing procedure when
using convenience closing. When closing,
make sure that no one has any parts of the
body within the closing area. G
WARNING
During convenience opening parts of the body could be drawn in or become trapped
between the side window and window frame.
There is a risk of injury.
When opening, make sure that nobody is
touching the side window. If someone
becomes trapped, immediately press
the W switch in the door to stop the move-
ment of the side windows. To continue closing
the side window, pull on the Wswitch. 120
Operating the climate control systemClimate control