set clock MERCEDES-BENZ B-CLASS SPORTS 2013 Owners Manual

i
If you press one of the two buttons and
do not hear a tone, the relevant setting has
already been selected.
The vehicle is locked automatically when the
ignition is switched on and the wheels are
turning.
You could therefore lock yourself out if:
R the vehicle is being pushed.
R the vehicle is being towed.
R the vehicle is on a rollerd ynamometer.
You can also switch the automati clocking
function on and off using the on-board
computer (Y page 191). Unlocking the driver's door
(mechanical key)
If the vehicle can no longer be unlocked with
the SmartKey, use the mechanical key.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm
system will be triggered (Y page 65).
X Take the mechanical key out of the
SmartKey (Y page 69).
X Insert the mechanical key into the lock of
the driver's door as far as it will go. X
Turn the mechanical key counter-clockwise
to position 1.
The door is unlocked.
X Turn the mechanical key back and remove
it.
X Insert the mechanical key into the
SmartKey. Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the
SmartKey, use the mechanical key.
X Open the driver's door.
X Close the front-passenger door, the rear
doors and the tailgate.
X Press the locking button (Y page 74).
X Check whether the locking knobs on the
front-passenger door and the rear doors
are still visible. Press down the locking
knobs manually, if necessary (Y page 74).
X Close the driver's door.
X Take the mechanical key out of the
SmartKey (Y page 69).
X Insert the mechanical key into the lock of
the driver's door as far as it will go. X
Turn the mechanical key clockwise as far
as it will go to position 1.
X Turn the mechanical key back and remove
it.
X Make sure that the doors and the tailgate
are locked.
X Insert the mechanical key into the
SmartKey.
i If you lock the vehicle as described above,
the fuel filler flap is not locked. The anti-
theft alarm system is not armed. Doors
75Opening/closing Z

Control panel for dual-zone automatic climate control
:
Sets the temperature (Y page 119)
; Defrosts the windshield (Y page 121)
= Sets the air distribution (Y page 120)
? Activates/deactivates air-recirculation mode (Y page 122)
A Sets the airflow (Y page 120)
B Activates/deactivates coolin gwith air dehumidification ( Ypage 118)
C Switches the rear window defroster on/off (Y page 122)Notes on using automatic climate
control
The following contains notes and
recommendations on optimum use of
automatic 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 preventing
fogged up windows with low outside
temperatures or rain: switch¯on for
the air distribution and switch Pand
O off if possible (Y page 120). In air-
recirculation mode, switch doff
(Y page 122). Set airflow control Ato a
setting between 3 and 6 (Y page 120).R
Recommendation for rapid cooling or
heating of the vehicle interior: set airflow
control Ato a setting between 3 and 6
briefly (Y page 120).
R Recommendation for a constant
vehicle interior temperature: set airflow
control Ato a setting between 1 and 3
(Y page 120).
R Recommendation for air distribution in
the winter: setO and
¯(Y page 120).
Recommendation for air distribution in
the summer: setP orP and
¯(Y page 120).
R Only use the "defrosting" function briefly
until the windshield is clear again.
R Only use "air-recirculation" mode briefly,
e.g. if there are unpleasan toutside odors
or when in a tunnel. The windows could Overview of climate control systems
115Climate control Z

for the front-passenger side as well. The
indicator lamp in the
ábutton goes out.
R Use the residual heatf unction if you want
to heat or ventilate th evehicle interior
when the ignition is switched off. The
"residual heat" function can only be
activated or deactivated with the ignition
switched off. Operating the climate control
systems
Activating/deactivating climate
control
Points to observe before use G
WARNING
When the climate control system is
deactivated, the outside air supply and
circulation are also deactivated. Only choose
this setting for a short time. Otherwise the
windows could fog up, impairing visibility and
endangering you and others.
Activating/deactivating Climate control
X
Turn the SmartKey to position 2in the
ignition lock.
X To switch on: turn controlAclockwise
to the desired position (except position 0)
(Y page 115).
X To switch off: turn controlAcounter-
clockwise to position 0(Y page 115). 3-zone automatic climate control
X
Turn the SmartKey to position 2in the
ignition lock.
X To switch on: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to
automatic mode.
or
X Press the ^button.
The indicator lamp in the ^button goes
out. The previously selected settings are
restored.
X To switch off: press button^.
The indicator lamp in the ^button lights
up.
i 3-zone automatic climate control: switch
on climate control primarily using the
à button. Activating/deactivating cooling with
air dehumidification
Points to observe before use G
WARNING
If you switch off the cooling function, the
vehicle will not be cooled when weather
conditions are warm. The windows can fog up
more quickly. This may preventy ou from
observing the traffic conditions, thereby
causing an accident.
The cooling with air dehumidification function
is only available with dual-zone automatic
climate control and 3-zone automatic climate
control.
The cooling with air dehumidification function
is only available when the engine is running.
The air inside the vehicle is cooled and
dehumidified according to the temperature
selected.
Condensation may drip from the underside of
the vehicle when it is in cooling mode. This is
normal and not a sign that there is a
malfunction. 118
Operating the climate control systemsClimate control

i
The cooling with air dehumidification
function uses refrigerant R134a. This
refrigerant does not contain
chlorofluorocarbons, and therefore does
not damage the ozone layer.
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.
Problems with the cooling with air
dehumidification function When you press the
¿button, the
indicator lamp in the button flashes three
times or remains off. You can no longer switch
on the cooling with air dehumidification
function.
X Visit a qualified specialist workshop. Setting climate control to automatic
G
WARNING
If you switch off the cooling function, the
vehicle will not be cooled when weather
conditions are warm. The windows can fog up
more quickly. Window fogging may impair
visibility and endanger you and others.
The automatic function is only available in
conjunction with 3-zone automatic climate
control.
In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the
temperature of the dispensed air, the airflow
and the air distribution.
Automatic mode will achieve optimal
operation if cooling with air dehumidification is also activated. If desired, cooling with air
dehumidification can be deactivated.
X
Turn the SmartKey to position 2in the
ignition lock.
X Set the desired temperature.
X To activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Automatic air distribution and airflow
are activated.
X To select manually: press the_
button.
or
X Press the KorI button.
The indicator lamp in the Ãbutton goes
out. Automatic air distribution and airflow
are deactivated. Setting the temperature
Climate control You can set the temperature for the entire
vehicle.
X
Turn the SmartKey to position 2in the
ignition lock.
X To increase/reduce: turn control:
clockwise or counter-clockwise
(Y page 115). Only change the temperature
setting in small increments. Start at 22 †.
3-zone automatic climate control Different temperatures can be set for the
driver's and front-passenger sides.
X
Turn the SmartKey to position 2in the
ignition lock.
X To increase/reduce: turn control:or
E clockwise or counter-clockwise
(Y page 117). Only change the temperature
setting in small increments. Start at 22 †. Operating the climate control systems
119Climate control Z

Setting the air distribution
Air distribution settings Climate control
¯
Directs air through the defroster vents
P Directs air through the center and side
air vents
O Directs the airflow through the
footwell air vents
i You can also activate several air
distribution settings simultaneously .To do
this, press multiple air distribution buttons.
The air is then directed through various
vents.
3-zone automatic climate control
¯ Directs air through the defroster vents
P Directs air through the center and side
air vents
O Directs the airflow through the
footwell air vents
b Directs the airflow through the center
and side air vents as well as the
defroster vents
a Directs air through the defroster and
footwell vents
i Regardless of the air distribution setting,
airflow is always directed through the side
air vents. The side air vents can only be
closed if the adjusters are turned clockwise
as far as possible.
Climate control X
Turn the SmartKey to position 2in the
ignition lock.
X Press one or more of the P,O,
¯ buttons.
The corresponding indicator lamp lights up
briefly. 3-zone automatic climate control X
Turn the SmartKey to position 2in the
ignition lock.
X Press the ÉorË button until the
desired symbol appears in the display. Setting the airflow
Climate control X
Turn the SmartKey to position 2in the
ignition lock.
X To increase/reduce: turn controlA
clockwise or counter-clockwise
(Y page 115).
3-zone automatic climate control X
Turn the SmartKey to position 2in the
ignition lock.
X To increase/reduce: press theKor
I button. Switching the ZONE function on/off
This function is only available with 3-zone
automatic climate control.
X To activate: press theábutton.
The indicator lamp in the ábutton lights
up.
The temperature setting for the driver's
side is not adopted for the front-passenger
side.
X To deactivate: press theábutton.
The indicator lamp in the ábutton goes
out.
The temperature setting for the driver's
side is adopted for the front-passenger
side. 120
Operating the climate control systemsClimate control

Defrosting the windshield
You can use this function to defrost the
windshield or to defrost thei nside of the
windshield and the side windows.
i You should only select the defrosting
functio nuntil the windshield is clear again.
X Turn the SmartKey to position 2in the
ignition lock.
X To activate: press the¬button.
The indicator lamp in the ¬button lights
up.
The climate control system switches to the
following functions:
R high airflow
R high temperature
R aird istribution to the windshield and
front side windows
R air-recirculation mode off
i The "defrosting" function automatically
sets the blower output to the optimum
defrosting effect .Asar esult, the airflow
may increase or decrease automatically
after the button is pressed.
i You can manually adjust the blower
output when the defrosting function is
active.
R Dual-zone automatic climate control:
turn airflow control Aclockwise or
counter-clockwise (Y page 115).
R 3-zone automatic climate control:
press the óorô button.
X To deactivate: press the¬button.
The indicator lamp in the ¬button goes
out. The previously selected settings are
restored. Air-recirculation mode remains
deactivated.
or
X Press the Ãbutton 7
.
The indicator lamp in the ¬button goes
out. Airflow and air distribution are set to
automatic mode. or
X
Dual-zone automatic climate control:
turn temperature control :clockwise or
counter-clockwise (Y page 115).
3-zone automatic climate control: turn
temperature controls :orE clockwise
or counter-clockwise (Y page 117). Defrosting the windows
Windows fogged up on the inside Climate control
X
Activate the ¿cooling with air
dehumidification function.
X If the windows continue to fog up, activate
the defrosting function (Y page 121).
i You should only select this setting until
the windshield is clear again.
3-zone automatic climate control
X Activate the ¿cooling with air
dehumidification function.
X Activate automatic mode Ã.
X If the windows continue to fog up, activate
the defrosting function (Y page 121).
i You should only select this setting until
the windshield is clear again.
Windows fogged up on the outside X
Activate the windshield wipers.
X Set the air distribution to PorO.
i You should only select this setting until
the windshield is clear again.
7 3-zone automatic climate control only. Operating the climate control systems
121Climate control Z

stationary vehicle for up to 30 minutes after
the engine has been switched off. The heating
time depends on the temperature that has
been set.
i
The blower will run at a low speed
regardless of the airflow setting.
i If you activate the residual heat function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed.
X Turn the SmartKey to position 0in the
ignition lock or remove it.
X To activate: press theÌbutton.
The indicator lamp in the Ìbutton lights
up.
X To deactivate: press theÌbutton.
The indicator lamp in the Ìbutton goes
out.
i Residual heat is deactivated
automatically:
R after approximately 30 minutes
R when the ignition is switched on
R if the battery voltage drops
R when the auxiliary heating is activated Setting the air vents
Important safety notes
G
WARNING
Very hot or very cold air can flow from the air
vents. This could cause burns or frostbite to
bare skin in the immediate vicinity of the
vents. Keep bare skin away from these air
vents. If necessary, direct the airflow away to
a different area of the vehicle interior. In order to ensure the direct flow of fresh air
through the air vents into the vehicle interior,
please observe the following notes:
R
keep the air inlet between the windshield
and the hood free of blockages, such as ice,
snow or leaves.
R never cover the air vents or air intake grilles
in the vehicle interior.
i You can move the adjusters for the air
vents vertically or horizontally to set the
direction of the airflow.
i For optimal climate control in the vehicle,
open the air vents completely and set the
adjusters to the central position. Setting the center air vents
X
To open the center air vent: turn the
adjuster in one of center air vents :
counter-clockwise.
X To close the center air vent: turn the
adjuster in one of center air vents :
clockwise until it engages. Setting the air vents
123Climate control Z

Setting the side air vents
:
Side window defroster vent
; Side air vent
X To open aside air vent: turn the adjuster
in side air vent ;counter-clockwise.
X To close aside air vent: turn the adjuster
in side air vent ;clockwise until it
engages. Setting the rear-compartment air
vents
:
Rear-compartment air vent, left
; Rear-compartment air vent, right
= Rear-compartment air vent thumbwheel
X To open/close: turn thumbwheel =up or
down. 124
Setting the air ventsClimate control

X
Turn the brightness control knob clockwise
or counter-clockwise.
If the light switch is set to Ã,Tor
L, the brightness is dependent upon
the brightness of the ambient light.
i The light sensor in the instrument cluster
automatically controls the brightness of
the multifunction display.
In daylight, the displays in the instrument
cluster are not illuminated. Coolant temperature display
G
WARNING
Driving when your engine is overheated can
cause some fluids which may have leaked into
the engine compartment to catch fire. You
could be seriously burned.
Steam from an overheated engine can cause
serious burns which can occur just by opening
the engine hood. Stay away from the engine
if you see or hear steam coming from it.
Stop the vehicle in a safe location away from
other traffic. Turn off the engine, get out of the
vehicle and do not stand near the vehicle until
the engine has cooled down.
! Adisplay message is shown if the coolant
temperature is too high.
If the coolant temperature is over
248 ‡(120 †), do not continue driving. The
engine will otherwise be damaged.
The coolan ttemperature gage is in the
instrument cluster on the right-hand side.
Under normal operating conditions and with
the specified coolant level, the coolant
temperature may rise to 248 ‡ (120 †). Tachometer
! Do not drive in the overrevving range, as
this could damage the engine.
The red band in the tachometer 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
The outside temperature indicator is not
designed to serve as an ice-warning device
and is therefore unsuitable for that purpose.
Indicated temperatures just above the
freezing point do not guarantee that the road
surface is free of ice. The road may still be icy,
especially in wooded areas or on bridges.
The outside temperature display is in the
multifunction display.
Changes in the outside temperature are
displayed after a short delay. Speedometer with segments
The segments in the speedometer indicate
which speed range is available.
R Cruise control activated (Y page 150):
The segments light up from the stored
speed to the maximum speed.
R DISTRONIC PLUS activated (Y page 152):
One or two segments in the set speed
range light up.
R DISTRONIC PLUS detectsav ehicle in front:
The segments between the speed of the
vehicle in fron tand the stored speed light
up. Displays and operation
179On-board computer and displays Z

Battery acid is caustic. Avoid
contact with the skin, eyes or
clothing.
Wea
rsuitable protective clothing,
in particular gloves, an apro nand
a face mask.
Immediately rinse acid splashes
off with clean water. Consult a
doctor if necessary. Wear eye protection.
Keep children away.
Observe this Operator's Manual.
For safety reasons, Mercedes-Benz
recommends tha tyou only use batteries
which have been tested and approved for
your vehicle by Mercedes-Benz. These
batteries provide increased impact
protection to prevent vehicle occupants from
suffering acid burns should the battery be
damaged in the event of an accident.
In order for the battery to achieve the
maximum possible service life, it must always
be sufficiently charged.
Like other batteries, the vehicle battery may
discharge over time if you do not use the
vehicle. In this case, have the battery
disconnected at a qualified specialist
workshop. You can also charge the battery
with a charger recommended by Mercedes-
Benz.C ontact a qualified specialist workshop
for further information.
Have the battery charge level checked more
frequently if you use the vehicle mainly for
short trips or if you leave it standing idle for
a lengthy period. Consult a qualified specialist
workshop if you wish to leave your vehicle
parked for a long period of time.
Only replace a battery with a battery that has
been recommended by Mercedes-Benz. i
Remove the SmartKey if you park the
vehicle and do not require any electrical
consumers. The vehicle will then use very
little energy, thus conserving battery
power.
i If the power supply has been interrupted,
e.g. if you reconnect the battery, you will
have to:
R set the clock (audio system/COMAND,
see the separate operating instructions).
R reset the function for folding the exterior
mirrors in/out automatically, by folding
the mirrors out once (Y page 91). Charging the battery
G
WARNING
During charging and jump-starting, explosive
gases can escape from the battery. There is a
risk of an explosion.
Particularly avoid fire, open flames, creating
sparks and smoking. Ensure there is sufficient
ventilation while charging and jump-starting.
Do not lean over a battery. G
WARNING
Battery acid is caustic. There is a risk of injury.
Avoid contact with the skin, eyes or clothing.
Do not inhale any battery gases. Do not lean
over the battery. Keep children away from
batteries. Wash battery acid immediately with
water and seek medical attention. G
WARNING
Ad ischarged battery can freeze at
temperatures below freezing point .When
jump-starting the vehicle or charging the
battery, gases can escape from the battery.
There is a risk of an explosion.
Allow the frozen battery to thaw out before
charging it or jump-starting.
! Only use battery chargers with a
maximum charging voltage of 14.8 V. Battery (vehicle)
281Breakdown assistance Z