ECO mode MERCEDES-BENZ B-CLASS HATCHBACK 2011 User Guide

Useful information
i This Owner's Manual describes all models
and all standard and optional equipment
available to your vehicle at the time of pub-
lication of the Owner's Manual. Country-
specific deviations are possible. Please
note that your vehicle may not be equipped
with all features described. This also
applies to safety-relevan tsystems and
functions.
i Please read the information on qualified
specialist workshops (Y page 22).Overview of climate control systems
Important safety notes
G
WARNING
Observe the settings recommended on the
following pages. The windows could other-
wise mis tup. This may preven tyou from
observing the traffic conditions, thereby caus-
ing an accident.
THERMATIC automatic climate control/
THERMOTRONIC automatic climate control
controls the temperature and the humidity of
the vehicle interior and filters out undesirable
substances from the air.
THERMATIC/THERMOTRONIC automatic cli-
mate control is only operational when the
engine is running 7
.O ptimum operation is only
achieved if you drive with the side windows
and panorama sliding sunroof closed.
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature (Y page 81). This
will speed up the cooling process and the
desired vehicle interior temperature will be
reached more quickly.
i The integrated filter can filter out most
particles of dust and completely filters out pollen.
Aclogged 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 it
depends on environmental conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Service Booklet.
7 THERMOTRONIC automatic climate control: the residual heat function can only be activated/deactivated
when the ignition is switched off. 114
Overview of climate control systemsClimate control

Control panel for THERMATIC automatic climate control
:
Sets the temperature (Y page 118)
; Demists the windscreen (Y page 119)
= Sets the air distribution (Y page 118)
? Activates/deactivates air-recirculation mode (Y page 121)
A Sets the airflow (Y page 119)
B Activates/deactivates coolin gwith air dehumidification ( Ypage 117)
C Switches the rear window heating on/off (Y page 120)Notes on using THERMATIC automatic
climate control
The following contains notes and recommen-
dations on optimum use of THERMATIC auto-
matic climate control.
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 air distribution in
winter: set theOand¯ settings.
Recommendation for air distribution in
summer: set thePsetting.
R Only use the demisting function briefly,
until the windscreen is clear again.
R Only use the air-recirculation mode briefly,
e.g. if there are unpleasan toutside odours
or when in a tunnel. The windows could otherwise mis
tup as no fresh air is drawn
into the vehicle in air-recirculation mode. Overview of climate control systems
115Climate control Z

soon as the window is clear. It only switches
itself off automatically after a few minutes.
If the battery voltage is too low, the rear win-
dow heating may switch off.
Problems with the rear window heating The rear window heating has switched off
prematurely or cannot be activated.
X Switch off any consumers that are not
required, e.g. reading lamps or interior
lighting.
When the battery is sufficiently charged,
the rear window heating can be activated
again. Activating/deactivating air-recircula-
tion mode
G
WARNING
Only switch over to air-recirculation mode
briefly at low outside temperatures. Other-
wise, the windows could mist up, thus impair-
ing visibility and endangering yourselfa nd
others. This may prevent you from observing
the traffic conditions, thereby causing an
accident.
You can deactivate the flo woffresh air if
unpleasant odours are entering the vehicle
from outside. The air already inside the vehi-
cle will then be recirculated.
The operation of air-recirculation mode is the
same for all control panels.
X Turn the key to position 2in the ignition
lock.
X To activate: press theebutton.
The indicator lamp in the ebutton lights
up.
i Air-recirculation mode is activated auto-
matically at high outside temperatures.
When air-recirculation mode is activated
automatically, the indicator lamp in the
e button is not lit. Outside air is added after about 30
minutes.
X To switch off: press theebutton.
The indicator lamp in the ebutton goes
out.
i Air-recirculation mode deactivates auto-
matically:
R after approximately five minutes at out-
side temperatures below approximately
5 †
R after approximately five minutes if the
cooling with air dehumidificatio nfunc-
tion 12
is switched off
R after approximately 30 minutes at out-
side temperatures above approximately
5 † Convenience opening/closing using
the air-recirculation button
G
WARNING
Make sure that nobody can become trapped
between the side window and the door frame
as the side windows are opened and closed.
Make sure that all object sand body parts are
clear of the side windows when they are being
opened or closed .You or the objects could be
drawn in or become trapped between the side
window and the door frame as the window
moves. If there is arisk of entrapment, oper-
ate the Wswitch to move the side window
in the opposite direction.
Make sure that nobody can become trapped
as the panorama sliding sunroof is opened
and closed. If there is a risk of entrapment,
operate the 3switch to move the pano-
rama sliding sunroof in the opposite direction.
X Convenience closing feature: press and
hold the ebutton until the side win-
12 Only with THERMATIC/THERMOTRONIC automatic climate control. Operating the climate control system
121Climate control Z

Problems with the transmission
Problem Possible causes/consequences and
M Solutions
The transmission has
problems shifting gear. The transmission is losing oil.
X
Have the transmission checked at a qualified specialist work-
shop immediately. The acceleration ability
is deteriorating.
The transmission no
longer shifts into all of
the gears.
Reverse gear can no
longer be engaged. The transmission is in emergency mode.
X Stop.
X Shift the transmission to position P.
X Switch off the engine.
X Wait at least 10seconds before restarting the engine.
X Shift the transmission to position D.
X Have the transmission checked at a qualified specialist work-
shop immediately. Refuelling
Important safety notes
G
WARNING
Fuel is highly flammable. Fire, naked flames
and smoking are therefore prohibited when
handling fuels.
Switch off the engine before refuelling. G
WARNING
Avoid contact with fuels.
It is hazardous to your health if your skin
comes into direct contact with fuels or you
breathe in fuel vapours. G
WARNING
Do not use petrol to refuel a diesel tank.N ever
mix diesel with petrol. Doing so could damage
the fuel system and the engine. The vehicle
could also catch fire.
! Do not use petrol to refuel vehicles with a
diesel engine. Do not use diesel to refuel
vehicles with a petrol engine. Even small
amounts of the wrong fuel result in damage
to the fuel system and the engine. !
Do not switch on the ignition if you acci-
dentally refuel with the wrong fuel. Other-
wise, the fuel will enter the fuel lines. Notify
a qualified specialist workshop and have
the fuel tank and fuel lines drained com-
pletely.
! Overfilling the fuel tank could damage the
fuel system.
! Take care not to spill any fuel on painted
surfaces. You could otherwise damage the
paintwork.
! Use a filter when adding fuel from a fuel
can. The fuel lines and/or the diesel injec-
tion system could otherwise be blocked by
particles from the fuel can.
Further information on fuel and on fuel grades
can be found in the "Fuel" section
(Y page 312). Refuelling
141Driving and parking Z

ating instructions for the audio system/
COMAND Online.
X Engage reverse gear.
Guide lines are used to show the area
behind the vehicle in the Audio/COMAND
display. Function mode display for vehicles with COMAND
Online and a trailer tow hitch
X
To switch between function modes on
vehicles with COMAND Online and a
trailer tow hitch: selectthe "Reverse
parking" function with the COMAND con-
troller symbol :; see the separate operat-
ing instructions for COMAND Online.
or
X For the "Coupling up a trailer" function,
select the symbol ;; see the separate
operating instructions for COMAND Online.
The symbol of the selected function is high-
lighted.
To deactivate: the reversing camera is deac-
tivated if you:
R select transmission position P(vehicles
with automatic transmission)
R drive forward ten metres
R for vehicles with an automatic transmis-
sion, shift the transmission from Rto
another position after 15 seconds
R for vehicles with manual transmission, shift
out of reverse gear after 15 seconds
R drive forwards at a speed of over
10 km/h Displays in the Audio/COMAND display G
WARNING
Using the reversing camera can be dangerous
if you are colour-blind or if your ability to dis-
tinguish colours is impaired.
Only use the reversing camera if you can see
and distinguish between all the coloured
guide lines that are displayed by the reversing
camera in the Audio/COMAND display. G
WARNING
Please note that objects not at ground level
may appear to be further away than they
actually are. These include:
R the bumper of a vehicle that is parked
behind your vehicle
R a trailer drawbar
R the ball coupling of a trailer tow hitch
R the tail-end of a lorry
R slanted posts
The lines are only guides, not accurate meas-
urements of the distance to an obstacle.
Therefore, you should never pass the red line
when approaching an obstacle. You could oth-
erwise cause an accident and injure yourself
and others. Lanes
:
White lane marking vehicle width with
steering wheel straight (static)
; Yellow lane marking the course the tyres
will take at the current steering wheel
angle (dynamic) Driving systems
171Driving and parking Z

Useful information
i This Owner's Manual describes all models
and all standard and optional equipment
available to your vehicle at the time of pub-
lication of the Owner's Manual. Country-
specific deviations are possible. Please
note that your vehicle may not be equipped
with all features described. This also
applies to safety-relevan tsystems and
functions.
i Please read the information on qualified
specialist workshops (Y page 22).Important safety notes
G
WARNING
Only use the on-board computer when road
and traffic conditions permit .You would oth-
erwise be distracted and unable to concen-
trate properly on driving, and could cause an
accident. G
WARNING
No messages will be displayed if either the
instrument cluster or the multifunction dis-
play is inoperative.
As a result, you will not be able to see infor-
mation about your driving conditions, such as
speed, outside temperature, warning and indi-
cator lamps, display messages or system fail-
ures. Driving characteristics may be impaired.
Adjust your driving style and vehicle speed
accordingly.
Contact a qualified specialist workshop
immediately. G
WARNING
The on-board computer only records and dis-
plays malfunctions and warnings from certain
systems. For this reason, you should always
make sure that your vehicle is safe to use. You
could otherwise cause an accident by driving
an unsafe vehicle. G
WARNING
The operating safety of your vehicle could be
affected if maintenance work is carried out
incorrectly. You could lose control of the vehi-
cle and cause an accident .The safety systems
may also no longer be able to protect you or
others as they are designed to do.
Always have maintenance work carried out at
a qualified specialist workshop.
You will find an illustration of the instrument
cluster in the "At a glance" section
(Y page 28). Displays and operation
Coolant temperature gauge
The coolant temperature gauge is in the
instrumentc lusteront he right-hand side.
The reading may rise up to 120 †undernor-
mal driving conditions if the coolant has been
filled correctly.
At high outside temperatures and when driv-
ing uphill, the coolant temperature may rise
to the end of the scale. Rev counter
! Do not drive in the overrevving range.
Doing so will damage the engine.
The red band in the rev counter indicates the
engine's overrevving range.
The fuel supply is interrupted to protec tthe
engine when the red band is reached. Outside temperature display
G
WARNING
At temperatures just above freezing point, the
street may be icy, especially in wooded areas
or on bridges. If you do not adapt your driving
style to the conditions, the vehicle could skid.
For this reason, adapt your driving style and
speed to the weather conditions. 188
Displays and operationOn-board computer and displays

to the top of the display as you approach the
point of the announced change of direction.
Change of direction announced with a
lane recommendation :
Road to which the change of direction
leads
; Distance to change of directio nand visual
distance display
= Lane recommendation
? New lane during a change of direction
A Lane continues through change of direc-
tion
B Change-of-direction icon
On multi-lane roads, lane recommendation
= may be shown for the next change of
direction. During the change of direction,
additional lanes may be displayed.
Lane recommendations are only displayed if
the relevant data is availabl eonthe digital
map.
Other status indicators of the naviga-
tion system R
O:y ou have reached the destination or an
intermediate destination.
R New route... or
Calculating route :
calculating a new route
R Off map or
Off road :t
he vehicle position
is outside the area of the digital map (off-
map position).
R No route :n
o route could be calculated to
the selected destination. Audio menu
Selecting aradio station :
Waveband
; Channel frequency with memory position
i The memory position is only displayed
along with station ;if this has been
stored.
X Switch on Audio 20 or COMAND Online
(see the separate operating instructions)
and select Radio.
X Press the =or; button on the steer-
ing wheel to select the Audio menu.
X To selectas toredstation: briefly press
the 9 or: button.
X To select a station from the station
list: press and briefly hold the 9
or : button.
If no statio nlist is received:
X To select astation using the station
search: press and briefly hold the 9
or : button.
i For information on changing waveband
and storing stations, see the separate oper-
ating instructions.
i DAB radio mode ( DigitalAudioBroadcast-
ing); see the separate operating instruc-
tions. Menus and submenus
195On-board computer and displays Z

X
Press :or9 to select the Dipped headl. Setting for: function.
You will see the selected setting: Right-side traffic or
Left-side traffic .
X Press the abutton to save the setting.
When you change the setting, conversion
does not take place until the next time the
vehicle is stationary.
This function is only available on vehicles with
the Intelligent Light System.
You can use this function to switch between
symmetrical and asymmetrical dipped beam
(Y page 96).
If you set the dipped-beam headlamps for
driving on the right/left, then motorway
mode and the extended range foglamps are
not available.
You can also have the dipped-beam head-
lamps set for driving on the right/left at a
qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre.
Switching Adaptive Highbeam Assist on/
off
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Light submenu.
X Press the abutton to confirm.
X Press the :or9 button to select the
Adaptive Main-beam Assist: function.
You will see the selected setting: Activa‐ted or
Deactivated .
X Press the abutton to save the setting.
Activating/deactivating the surround
lighting and exterior lighting delayed
switch-off
If you have activated the Surround light‐ing: function and the light switch is set to
Ã, the following functions are activated
when it is dark:
R Surround lighting: the exterior lighting
remains lit for 40 seconds after unlocking
with the key. If you start the engine, the surround lighting is switched off and auto-
matic headlamp mode is activated
(Y
page 97).
R Exterior lighting delayed switch-off: the
exterior lighting remains lit for 60seconds
after the engine is switched off. If you close
all the doors and the tailgate, the exterior
lighting goes off after 15 seconds.
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Light submenu.
X Press the abutton to confirm.
X Press the :or9 button to select the
Surround lighting: function.
You will see the selected setting: on or
off .
X Press the abutton to save the setting.
Deactivating delayed switch-off of the exte-
rior lighting temporarily:
X Before leaving the vehicle, turn the key to
position 0in the ignition lock.
X Turn the key to position 2in the ignition
lock.
The exterior lighting delayed switch-off is
deactivated.
Delayed switch-off of the exterior lighting is
reactivated the next time you start the
engine.
i Depending on your vehicle's equipment,
when the surround lighting and delayed
switch-off exterior lighting are on, the fol-
lowing light up:
R side lamps
R foglamps
R dipped-beam headlamps
R daytime driving lights
R surround lighting in the exterior mirrors
Activating/deactivating the interior light-
ing delayed switch-off
If you activate the Interior lighting delay sw. off: function, the interior light-202
Menus and submenusOn-board computer and displays

Two-way radios and fax equipment used with-
out low-reflection exterior aerials can inter-
fere with the vehicle's electronics and thereby
jeopardise the operating safety of the vehicle
and your safety. Therefore, you must only use
this equipment if it is correctly connected to
a separate reflection-free exterior aerial. G
WARNING
Excessive levels of electromagnetic radiation
may cause damage to your health and the
health of others. Using an exterior aerial takes
into account current scientific discussions
relating to the possible health risk posed by
electromagnetic fields.
Mercedes-Benz recommends the use of an
approved exterior aerial. This ensures:
R optimal mobile phone reception quality in
the vehicle
R mutual influences between the vehicle
electronics and mobile phones are mini-
mised
An exterior aerial has the following advan-
tages:
R it conducts the electromagnetic fields gen-
erated by a wireless device to the exterior.
R the field strength in the vehicle interior is
lower than in a vehicle that does not have
an exterior aerial.
More information on suitable mobile phones,
mobile phone brackets and on connecting
Bluetooth ®
capable mobile phones to Audio
20 or COMAND Online can be obtained:
R at your Mercedes-Benz Service Centre
R on the Internet at http://www.mercedes-
benz.com/connect
i There are various mobile phone brackets
that may be fitted to your vehicle; in some
cases, these are country-specific.
i Even if your vehicle is equipped with con-
venience telephony, you can connect a
Bluetooth ®
capable mobile phone to Audio 20 or COMAND Online via the Bluetooth
®
interface.
i The functions and services available when
you use the phone depend on your mobile
phone model and service provider.
Inserting the mobile phone X
Open the telephone compartment
(Y page 246).
X Place the mobile phone bracket into the
pre-installed fitting (see the separate
installation instructions for the mobile
phone fitting).
X Insert the mobile phone into the mobile
phone bracket (see the separate installa-
tion instructions for the mobile phone fit-
ting).
If the mobile phone is inserted in the mobile
phone bracket, you can speak to the person
you are calling using the hands-free system.
i On some mobile phone brackets, you first
have to connect the mobile phone via Blue-
tooth ®
to the mobile phone bracket (see
the separate operating instructions for the
mobile phone bracket).
If this is the case, the mobile phone does
not have to be inserted into the bracket for
you to be able to use the telephone func-
tions. However, the charging function and
aerial function are not available.
Operating the mobile phone Features
259Stowing and features Z

Useful information
i This Owner's Manual describes all models
and all standard and optional equipment
available to your vehicle at the time of pub-
lication of the Owner's Manual. Country-
specific deviations are possible. Please
note that your vehicle may not be equipped
with all features described. This also
applies to safety-relevan tsystems and
functions.
i Please read the information on qualified
specialist workshops (Y page 22).Engine compartment
Bonnet
Opening the bonnet G
WARNING
Do no tpull the release leve rwhile the vehicle
is in motion. If you do so, the bonnet may open
up and block your view. G
WARNING
There is a risk of injury if the bonnet is open,
even if the engine is not running.
Some engine components can become very
hot.
To avoid the risk of burns, only touch those
components described in the Owner's Manual
and observe the relevant safety notes. G
WARNING
The radiator fan between the radiator and the
engine can start automatically, even if the key
has been removed from the ignition lock. For
this reason, you must not reach into the fan
rotation area. You could otherwise be injured. Vehicles with
apetrol engine: The elec-
tronic ignitio nsystem uses high voltage. For
this reason, you mus tnever touch ignition
system components (ignition coil, ignition
cables, spark plug connectors or test socket)
while:
R the engine is running
R the engine is being started
R the ignition is switched on and the engine
is being cranked by hand
You could otherwise suffer an electric shock
and be seriously or even fatally injured.
Vehicles with adiesel engine: The elec-
tronic injection control uses high voltage. For
this reason, you must never touch injection
system components while:
R the engine is running
R the engine is being started
R the ignition is switched on
You could otherwise suffer an electric shock
and be seriously or even fatally injured. G
WARNING
The windscreen wipers and wiper linkage
could be set in motion.
When the bonnet is open, you or others could
be injured by the wiper linkage.
Make sure that the windscreen wipers are
switched off and that the key has been pulled
out of the ignition lock before opening the
bonnet.
! Make sure that the windscreen wipers are
not folded away from the windscreen .Oth-
erwise, you could damage the windscreen
wipers or the bonnet. 262
Engine compartmentMaintenance and care