2014 MERCEDES-BENZ B-CLASS HATCHBACK ECO mode

Switching off the alarm .................... 80
ATTENTION ASSIST
Activating/deactivating ................. 244
Display message ............................ 271
Function/note s............................. 216
Audio menu (on-board computer) .... 239
AUTO lights
Display message ............................ 268
see Lights
Automatic engine start (ECO start/
stop function) .................................... 165
Automatic engine switch-off (ECO
start/stop function) .......................... 164
Automatic front-passenger front
airbag deactivation
Display message ............................ 264
Automatic front-passenger front
airbag deactivation system
Operation ......................................... 50
Problems ......................................... 54
System self-test ............................... 52
Automatic headlamp mode .............. 123
Automatic transmission
Accelerator pedal position ............. 173
Automatic drive program ............... 174
Changing gear ............................... 173
DIRECT SELECT lever ..................... 170
Drive program display .................... 170
Driving tips .................................... 173
Emergency running mode .............. 177
Engaging drive position .................. 172
Engaging neutral ............................ 171
Engaging park position automati-
cally ............................................... 171
Engaging reverse gear ................... 171
Engaging the park position ............ 170
Holding the vehicle stationary on
uphill gradients .............................. 173
Kickdown ....................................... 173
Manual drive progra m.................... 175
Overview ........................................ 169
Problem (fault) ............................... 177
Program selector button ................ 174
Pulling away ................................... 162
Starting the engine ........................ 161
Steering wheel gearshift paddle s... 174
Trailer towing ................................. 174
Transmission position display ........ 170 Transmission positions .................. 172
Automatic transmission emer-
gency running mode ......................... 177
Auxiliary heating
Activating/deactivating ................. 151
Activating/deactivating (on the
centre console ).............................. 151
Display message ............................ 282
Remote control .............................. 151
Setting ........................................... 248
Auxiliary heating/ventilation
Important safety notes .................. 150
Problem (display message) ............ 155
Setting the departure time ............. 153
Auxiliary ventilation
Activating/deactivating ................. 151
Activating/deactivating (on the
centre console ).............................. 151
Remote control .............................. 151
Axle load, permissible (trailer tow-
ing) ...................................................... 396 B
Bag hook ............................................ 305
Ball coupling
Folding in ....................................... 228
Folding ou t..................................... 226
BAS (Brake Assist System) ................. 74
Battery (key)
Checking .......................................... 90
Important safety notes .................... 89
Replacing ......................................... 90
Battery (vehicle)
Charging ........................................ 341
Display message ............................ 269
Important safety notes .................. 338
Jump starting ................................. 342
Belt tensioner
Activation ......................................... 54
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 245
Display message ............................ 272
Notes/function .............................. 221
Trailer towing ................................. 222
Bonnet
Closing ........................................... 319 Index
5

Do not install accessories such as audio
systems in these areas. Do not carry out
repairs or welding. You could impair the
operating efficiency of the restraint sys-
tems.
Have accessories retrofitted at a qualified
specialist workshop.
You could jeopardise the operating safety of
your vehicle if you use parts, tyres and wheels
as well as accessories relevant to safety
which have not been approved by Mercedes. This could lead to malfunctions in safety-rel-
evant systems, e.g. the brake system. Only
use genuine Mercedes-Benz parts or parts of
equal quality. Only use tyres, wheels and
accessories that have been specifically
approved for your vehicle.
Mercedes-Benz tests genuine parts and con-
version parts and accessories that have been specifically approved for your vehicle for their
reliability, safety and suitability. Despite
ongoing market research, Mercedes-Benz is
unable to assess other parts. Mercedes-Benz therefore accepts no responsibility for the
use of such parts in Mercedes-Benz vehicles, even if they have been officially approved or
independently approved by a testing centre.
In Germany, certain parts are only officially
approved for installation or modification if
they comply with legal requirements. This
also applies to some other countries. All gen-
uine Mercedes-Benz parts meet the approval
requirements. The use of non-approved parts may invalidate the vehicle's general operating
permit.
This is the case:
R if they cause a change of the vehicle type
from that for which the vehicle's general
operating permit was granted
R if other road users could be endangered
R if the emission or noise levels are adversely
affected
Always specify the vehicle identification num-
ber (VIN) when ordering genuine Mercedes-
Benz parts (Y page 386). Owner's Manual
Vehicle equipment
This Owner's Manual describes all models
and all standard and optional equipment
available for your vehicle at the time of pub-
lication of the Owner's Manual. Country-spe- cific differences are possible. Note that your
vehicle may not be fitted with all features
described. This is also the case for systems
and functions relevant to safety. Therefore,
the equipment on your vehicle may differ from
that in the descriptions and illustrations.
The original purchase contract documenta-
tion for your vehicle contains a list of all of the
systems in your vehicle.
Should you have any questions concerning
equipment and operation, please consult a
Mercedes-Benz Service Centre.
The Owner's Manual and Service Booklet are important documents and should kept in the
vehicle. Operating safety
Important safety notes
G
WARNING
If you do not have the prescribed service/
maintenance work or necessary repairs car-
ried out, this could result in malfunctions or
system failures. There is a risk of an accident.
Always have the prescribed service/mainte-
nance work as well as necessary repairs car-
ried out at a qualified specialist workshop. G
WARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with hot parts of the exhaust system. There is a risk of fire.
When driving off road or on unpaved roads,
check the vehicle's underside regularly. In
particular, remove parts of plants or other
flammable materials which have become 22
Introduction

Rearward-facing child restraint system
If it is absolutely necessary to fit a rearward-
facing child restraint system to the front-
passenger seat, always make sure that the
front-passenger front airbag is disabled. Only if the PASSENGER AIR BAG OFF indicator
lamp is lit continuously (Y page 41) is the
front-passenger front airbag disabled.
Always observe the information on suitable
positioning of the child restraint system
(Y page 66) in addition to the child restraint
system manufacturer's installation and oper-
ating instructions.
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. 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 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. Always make sure that the shoul-
der 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 down- wards from the vehicle belt outlet. If neces-
sary, 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 66) in addition to the child restraint
system manufacturer's installation and oper- ating instructions. Suitable positioning of the child
restraint system
Introduction Only child restraint systems which are
approved in accordance with the ECE stand-
ard ECE R44 are permitted for use in the vehi-
cle.
For certain child restraint systems in weight
category 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". Example: approval label on the child restraint sys-
tem
"Universal" category child restraint systems
can be used on the seats indicated with U, UF
or IUF according to the tables "Suitability of
the seats for attaching a belted child restraint
system" or "Suitability of the seats for attach-
ing an ISOFIX child restraint system".
Semi-universal child restraint systems are
indicated by the text "semi-universal" on the
approval label. These can be used if the vehi- cle and the seat are listed in the child restraint
system manufacturer's vehicle model list. For more information, contact the child restraint
system manufacturer or visit their website. 66
Children in the vehicleSafety

Suitability of the seats for attaching a belt-secured child restraint system
If you use a baby car seat of category 0 or 0+ or a rearward-facing child restraint system of
category I on a rear seat, you must adjust the driver's or front-passenger seat so that the seat
does not touch the child restraint system.
If you use a category I, forward-facing child restraint system, you should remove the head
restraint of the respective seat (Y page 112), if possible. The backrest of the child restraint
system must, as far as possible, lie flat against the backrest of the seat.
Always observe the notes in the "Child restraint system" section (Y page 58) and the child
restraint system manufacturer's installation instructions.
When you remove the child restraint system you must replace the head restraints again
immediately (Y page 110). All vehicle occupants must adjust their head restraints correctly
before beginning the journey.
Legend for the table:
XS eat which is unsuitable for children in this weight category.
US uitable for child restraint systems in the "Universal" category that are approved for use
in this weight category.
UF Suitable for forward-facing child restraint systems that belong to the "Universal" category and are approved for use in this weight category.
LS uitable for child restraint systems as recommended, see the table "Recommended child
restraint systems" (Y page 70). Suitable for semi-universal child restraint systems if the
vehicle and the seat are listed in the child restraint system manufacturer's vehicle model
list.
Front-passenger seat Weight category Front-passenger
front airbag enabled The front-passenger
front airbag is disa-
bled 0
up to 10 kg X
U
1
, L 1 0+
up to 13 kg X
U
1
, L 1 I
9 kg to 18 kg UF, L
U
1
, L 1 II
15 kg to 25 kg UF, L UF, L
III
22 kg to 36 kg UF, L UF, L
Rear seats
Weight category Left, right Centre
0
up to 10 kg U, L
U
2
, L 2 0+
up to 13 kg U, L
U
2
, L 2 1
The vehicle is equipped with an automatic front-passenger front airbag deactivation system. The PASSENGER
AIR BAG OFF indicator lamp must be lit.
2 Child restraint systems with a supporting bracket are not suitable for this seat. 68
Children in the vehicleSafety

Weight category Left, right Centre
I
9 kg to 18 kg U, L
U
2
, L 2 II
15 kg to 25 kg U, L X
III
22 kg to 36 kg U, L X
Suitability of the seats for attaching ISOFIX child restraint systems
If you use a baby car seat of category 0 or 0+ or a rearward-facing child restraint system of
category I on a rear seat, you must adjust the driver's or front-passenger seat so that the seat
does not touch the child restraint system.
If you use a category I, forward-facing child restraint system, you should remove the head
restraint of the respective seat (Y page 112), if possible. The backrest of the child restraint
system must, as far as possible, lie flat against the backrest of the seat.
Always observe the notes in the "Child restraint system" section (Y page 58) and the child
restraint system manufacturer's installation instructions.
When you remove the child restraint system you must replace the head restraints again
immediately (Y page 110). All vehicle occupants must adjust their head restraints correctly
before beginning the journey.
Legend for the table:
XI SOFIX position that is not suitable for ISOFIX child restraint systems in this weight cat-
egory and/or size category.
IUF Suitable for forward-facing ISOFIX child seat securing systems that belong to the "Uni- versal" category which are approved for use in this weight category.
IL Suitable for ISOFIX child restraint systems as recommended; see the following table of "Recommended child restraint systems" (Y page 70).
The manufacturer will also recommend a suitable ISOFIX child restraint system. For this,
your vehicle and the seat must be listed in the child restraint system manufacturer's
model list. For more information, contact the child restraint system manufacturer or visit
their website. Weight category Size category Equipment Rear seat,
left/right Carry-cot
F ISO/L1 X
G ISO/L2 X
0
up to 10 kg
up to approximately 6 months E ISO/R1 IL
0+
up to 13 kg
up to approximately 15 months E ISO/R1 IL
D ISO/R2 IL
2
Child restraint systems with a supporting bracket are not suitable for this seat. Children in the vehicle
69Safety Z

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). 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 coun-
tries, operation of the headlamps varies due
to legal requirements and self-imposed obli-
gations. Driving abroad
Symmetrical dipped-beam headlamps It is not necessary to switch your headlamps
to symmetrical dipped beam when driving in
countries where vehicles are driven on the
opposite side of the road to the country in
which the vehicle is registered. Legal require- ments are fulfilled without switching the
headlamps to symmetrical dipped beam. Setting the exterior lighting
Setting options Exterior lighting can be set by:
R using the light switch
R using the combination switch
(Y page 125)
R adjusting the headlamp range (vehicles
with halogen headlamps only)
(Y page 124)
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, control-
led by the light sensor
5L Dipped-beam/main-beam head-
lamps
B R
Rear foglamp
C N
Foglamp (vehicles with front fog-
lamps only)
If you hear a warning tone when you leave the
vehicle, the lights may still be switched on.
X Turn the light switch to Ã.122
Exterior lightingLights and windscreen wipers

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). Overview of climate control systems
General notes
Observe the settings recommended on the
following pages. The windows could other-
wise mist up.
To prevent the windows from misting up:
R switch off climate control only briefly
R switch on air-recirculation mode only
briefly
R switch on the cooling with air dehumidifi-
cation function
R switch on the windscreen demisting func-
tion briefly, if required
The air-conditioning system/
THERMOTRONIC automatic climate control
regulates the temperature and the humidity
of the vehicle interior and filters undesirable
substances from the air.
The air-conditioning system/
THERMOTRONIC automatic climate control
can only be operated when the engine is run-
ning. Optimum operation is only achieved
with the side windows and panorama sliding
sunroof closed.
The residual heat function can only be acti-
vated or deactivated with the ignition
switched off (Y page 149).
Always keep the ventilation flaps behind the
side panelling clear (Y page 131). Otherwise
the vehicle will not be ventilated correctly. i
Ventilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature (Y page 99). This
will speed up the cooling process and the
desired interior temperature will be
reached more quickly.
i The integrated filter filters out most par-
ticles of dust and soot and completely fil-
ters out pollen. With THERMOTRONIC auto- matic climate control, gaseous pollutants
and odours will also be reduced. 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 envi-
ronmental conditions, e.g. heavy air pollu-
tion, the interval may be shorter than statedin the Service Booklet.
i Under certain environmental conditions,
the residual heat function may be activated
automatically an hour after the key has
been removed in order to dry the automatic climate control. The vehicle is then ventila-
ted for 30 minutes. 138
Overview of climate control systemsClimate control

Control panel for air-conditioning system
:
To set the temperature (Y page 144)
; To demist the windscreen (Y page 146)
= To set the air distribution (Y page 145)
? To activate/deactivate air-recirculation mode (Y page 148)
A To set the airflow (Y page 145)
B To activate/deactivate cooling with air dehumidification (Y page 142)
C To switch the rear window heating on/off (Y page 147)Notes on using the air-conditioning
system
Air-conditioning system Below, you can find a number of tips and rec-
ommendations for optimum use of the air-
conditioning system.
R Switch on the air-conditioning system by
turning control knob Aclockwise to the
desired position (except position 0).
R Set the temperature to 22 †.
R Recommendation for avoiding misted
windows at low exterior temperatures
or in rain: switch on the ¿cooling with
dehumidification function (Y page 142).
Set air distribution to ¯and if possible
switch off PandO (Ypage 145).
Deactivate air-recirculation mode e
(Y page 148). Set airflow control
Ato a setting between
3 and 6(Y page 145).
R Recommendation for rapid cooling or
heating of the vehicle interior: briefly set
airflow control Ato a setting between 3
and 6(Y page 145).
R Recommendation for a constant vehi-
cle interior temperature: set airflow con-
trol Ato a setting between 1and 3
(Y page 145).
R Recommendation for air distribution in
winter: select the Oand¯ settings
(Y page 145).
Recommendation for air distribution in
summer: select the PorP and
¯ settings (Y page 145).
R Only use the "Windscreen demisting" func-
tion briefly until the windscreen is clear
again. Overview of climate control systems
139Climate control