2014 MERCEDES-BENZ B-CLASS SPORTS Owners Manual

and dehumidified according to the
temperatur
eselected.
Condensation may drip from th eunderside of
th ev ehicle when it is in coolin gmode. This is
normal and no tasign that there is a
malfunction.
Activating/deactivating X
To activate: pressthe 0001 button.
The indicator lamp in the 0001buttonlights
up.
X To deactivate: press the0001button.
The indicator lamp in the 0001button goes
out. The "Cooling with air dehumidification"
function has adelayed switch-off feature. Operating thec
limate control systems
127Climate control

Problems with the "Cooling with air dehumidification" function
Problem Possible causes/consequences and
000B Solutions
The indicator lamp in
the
0001 button
flashes three times or
remains off. The
"Cooling with air
dehumidification"
function cannot be
switched on. Cooling with air dehumidification has been deactivated due to a
malfunction.
X
Visit aqualified specialist workshop. Setting climate control to automatic
General notes The automatic function is only available in
conjunction with dual-zonea utomatic climate
control.
In automatic mode, the set temperature is
maintained automatically at aconstant level.
The system automatically regulates the
temperature of the dispensed air, the airflow
and the air distribution.
The automatic mode functions optimally
when the "Cooling with air dehumidification"
function is activated. If necessary, cooling
with air dehumidification can be deactivated.
If you deactivate the "Cooling with air-
dehumidification" function, the air inside the
vehicle will not be cooled. The air inside the
vehicle will also not be dehumidified. The
windows can fog up more quickly. Therefore,
only deactivate the "Cooling with air-
dehumidification" function briefly.
Setting climate control to automatic X
Turn the SmartKey to position 2in the
ignition lock (Y page 137).
X Set the desired temperature.
X To activate: press the000Cbutton.
The indicator lamp in the 000Cbutton lights
up. Automatic air distribution and airflow
are activated. X
To switch to manualm ode:press the
000F or0017 button.
or
X Press the 0004or000E button.
The indicator lamp in the 000Cbutton goes
out. Automatic air distribution and airflow
are deactivated. Setting the temperature
Automatic climate control You can set the temperature for the entire
vehicle.
X
Turn the SmartKey to position 2in the
ignition lock (Y page 137).
X To increase/reduce: turn control001A
clockwise or counter-clockwise
(Y page 123). Only change the temperature
settingins mall increments. Star tat2 2†.
Dual-zon eautomatic climate control Different temperatures can be set for the
driver's and front-passenger sides.
X
Turn the SmartKe ytoposition 2in the
ignition lock (Y page 137).
X To increase/reduce: turnc ontrol 001Aor
0009 clockwise or counter-clockwise
(Y page 125) .Only change the temperature
setting in small increments. Star tat2 2†. 128
Operatin
gthe climate contro lsystemsClimate control

Setting the air distribution
Automatic climate control Air distribution settings
0002
Directsa ir through the defroster vents
0018 Directsa ir through the center and side
air vents
000B Directsa ir 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.
Setting the air distribution
X Turn the SmartKey to position 2in the
ignition lock (Y page 137).
X Press one or more of the 0018,000B,
0002 buttons.
The corresponding indicator lamp lights up
briefly.
Dual-zone automatic climate control Air distribution settings
0002
Directsa ir through the defroster vents
0018 Directsair through the center and side
air vents
000B Directsair through the footwell air
vents
0013 Directsair through the defroster,
center and side air vents
0009 Directsair 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 ventsc an only be
closed if the adjusters are turned clockwise
until they engage. Setting the air distribution
X
Turn the SmartKey to position 2in the
ignition lock (Y page 137).
X Press the 000For0017 button repeatedly
until the desired symbol appears in the
display. Setting the airflow
Automatic climate control X
Turn the SmartKey to position 2in the
ignition lock (Y page 137).
X To increase/reduce: turn control001E
clockwise or counter-clockwise
(Y page 123).
Dual-zone automatic climate control X
Turn the SmartKey to position 2in the
ignition lock (Y page 137).
X To increase/reduce: press the0004or
000E button. Switching the ZONE function on/off
This function is only available with dual-zone
automatic climate control.
X To activate: press the000Dbutton.
The indicator lamp in the 000Dbutton lights
up.
The temperature setting for the driver's
side is not adopted for the front-passenger
side.
X To deactivate: press the000Dbutton.
The indicator lamp in the 000Dbutton goes
out.
The temperature setting for the driver's
side is adopted for the front-passenger
side. Operating the climate control systems
129Climate control

Defrosting th
ewindshield
You can use this function to defrost the
windshield or to defrost th einside of the
windshield and the side windows.
i Yous houl donlys elect the "Windshield
defrosting "fun ctio nuntil the windshield is
clear again.
X Turn the SmartKe ytoposition 2in the
ignition lock (Y page 137).
X To activate: press the0003button.
The indicator lamp in the 0003button lights
up.
The climate contro lsys tem 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 "Windshield defrosting" function
automatically set sthe blower output to the
optimum defrosting effect .Asaresult,the
airflow may increase or decrease
automatically after the button is pressed.
i You can adjust the blower output
manually while the "Windshield defrosting"
function is in operation:
R Automatic climate control: tur nairflow
control 001Eclockwise or counter-
clockwise (Y page 123).
R Dual-zon eautomatic climate control:
press the 0015or0005 button.
X To deactivate: press the0003button.
The indicator lamp in the 0003button goes
out. The previously selected settings are
restored. Air-recirculation mode remains
deactivated.
or
X Dual-zon eautomatic climate control: press
the 000C button.
The indicator lamp in the 0003button goes
out. Airflow and air distribution are set to
automatic mode. or
X
Automatic climate control: turn
temperature control 001Aclockwise or
counter-clockwise (Y page 123).
Dual-zon eautomatic climate control: turn
temperature control 001Aor0009 clockwise or
counter-clockwise (Y page 125). Defrosting th
ewindows
Windows fogged up on th einside Automatic climat
econtrol
X Activat ethe 0001 "Cooling with air
dehumidification "function.
X If the windows continue to fog up, activate
the 0003 "Windshield defrosting" function.
i You should only select this setting until
the windshield is clear again.
Dual-zone automatic climat econtrol
X Activat ethe 0001 "Cooling with air
dehumidification "function.
X Activat eautomatic mode 000C.
X If the windows continue to fog up, activate
the 0003 "Windshield defrosting" function.
i You should only select this setting until
the windshield is clear again.
Windows fogged up on the outside X
Activat ethe windshield wipers.
X Set the air distribution to 0018or000B.
i You should only select this setting until
the windshield is clear again. Rear window defroster
General notes The rear window defroster has
ahigh current
draw. You should therefore switch it off as
soon as the rear window is clear. Otherwise,
the rear window defroster switches off
automatically after several minutes. 130
Operating thec
limatecontrol systemsClimatecontrol

If the battery voltage is too low, the rear
window defroster may switch off.
Activating/deactivating
X
Turn the SmartKey to position 2in the
ignition lock (Y page 137).
X Press the 001Abutton.
The indicator lamp in the 001Abutton lights
up or goes out. Operating the climatec
ontrol systems
131Climate control

Problems with the rear window defroster
Problem Possible causes/consequences and
000B Solutions
The rear window
defroster has
deactivated
prematurely or cannot
be activated. 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
defroster can be activated again. Activating/deactivating air-
recirculation mode
General notes You can deactivate the flow of fresh air if
unpleasant odors are enteringt
he vehicle
from outside. The air already inside the
vehicle will then be recirculated.
If you switch on air-recirculation mode, the
windows can fog up more quickly, in
particular at low temperatures. Only use air-
recirculation mode briefly to prevent the
windows from fogging up.
The operation of air-recirculation mode is the
same for all control panels.
Activating/deactivating X
Turn the SmartKey to position 2in the
ignition lock (Y page 137).
X To activate: press the0019button.
The indicator lamp in the 0019button lights
up.
i Air-recirculation mode is activated
automatically at high outside
temperatures. When air-recirculation mode
is activated automatically ,the indicator
lamp in the 0019button is not lit.
Outside air is added after about
30 minutes.
X To deactivate: press the0019button.
The indicator lamp in the 0019button goes
out. i
Air-recirculation mode deactivates
automatically:
R after approximately five minutes at
outside temperatures below about 5†
R after approximately fiv eminute sifthe
"Coolin gwitha ir dehumidification"
function is deactivated
R after approximately 30 minute sat
outside temperatures above
approximately 5†ifthe "Cooling with
air dehumidification" function is
activated Activating/deactivating the residual
heat function
General notes The residual heat function is only available in
vehicles for Canada with automatic climate
control.
It is possible to make use of the residual heat
of the engine to continue heating the vehicle
for approximately 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 alow 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. 132
Operating the climate control systemsClimatec
ontrol

Activating/deactivating
X
Turn th eSmartKey to position 0in the
ignition loc korremove it (Y page 137).
X To activate: press the0016button.
The indicator lamp in the 0016buttonlights
up.
X To deactivate: press the0016button.
The indicator lamp in the 0016button 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 Setting th
eair vents Important safety notes
G
WARNING
Very hot or very cold air can flow fro mthe air
vents. This could result in burns or frostbite in
the immediate vicinity of the air vents. There
is ar isk of injury.
Make sure that all vehicle occupants always
maintain asufficient distance to the air
outlets. If necessary, redirect the airflow to
another area of the vehicle interior.
In order to ensure the direct flow of fresh air
through the air ventsi nto 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 ventsora ir intake grilles
in the vehicle interior.
i You can move the adjusters for the air
ventsv ertically or horizontally to set the
direction of the airflow.
i For optimal climate control in the vehicle,
open the air ventsc ompletely 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 001A
counter-clockwise.
X To close the center air vent: turn the
adjuster in one of center air vents 001A
clockwise until it engages. Setting the side air vents
001A
Side window defroster vent
0010 Side air vent
X To open aside air vent: turn the adjuster
in side air vent 0010counter-clockwise.
X To close aside air vent: turn the adjuster
in side air vent 0010clockwise until it
engages. Setting thea
ir vents
133Climatecontrol Z

Setting the rear-compartment air
vents 001A
Rear-compartmen tair vent,l eft
0010 Rear-compartmen tair vent,r ight
0023 Rear-compartmen tair vent thumbwheel
X To open/close: turn thumbwheel 0023up or
down. 134
Setting the air ventsClimate control