Adjusting air flow from air vents
iIn automatic mode, this setting optimizes
the air flow when outside temperatures are
high.
The Airflow setting defines air distribution
and air volume in automatic mode:
RFocused (default setting, increased air
flow)
RMedium (reduced air flow)
RDiffuse (minimal air flow)
iWhen the interior ambient temperature of
the vehicle is very hot and the climate
control is cooling the interior, the setting
for air flow is temporarily overridden.
XSelect climate control settings Q Central
climate control menu Q Airflow.
A selection list appears.
The current setting is indicated by a
dot #.
XChanging air flow: Slide ZVÆ or rotate
cVd.
XConfirming selection: Press W.
Operating rear climate control from the
front
The RearY function is used to operate the
rear climate control via COMAND and the
rocker switches on the control panel from the
front (Y page 363).
Switching on rear climate control
operation from the front
XSelect climate control settings Q Central
climate control menu.
XSelecting RearY: Slide ZVÆ or rotate
cVd.
XConfirming selection: Press W.
In the climate control setting, Rear appears
in the central menu. The rear climate
control can be operated from the front.
Climate control settings, rear climate control
:Rear temperature, left;Rear air distribution, left=Rear air volume?Central menu for rear climate controlARear air distribution, rightBRear temperature, right
The rear climate control is operated in the
same manner as the climate control system
for the driver’s and front passenger side.
Central menu for rear climate control
In the central menu for the rear climate
control, you can:
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Rswitch back to operating the front climate
control system
Rswitch off the rear climate control
Rswitch the automatic function of the rear
climate control from automatic to manual
XSelect climate control settings Q Central
climate control menu.
Switching off rear climate control
operation from the front
XSelect climate control settings Q Central
climate control menu.
The current setting is indicated by a
dot #.
XSelecting Front Climate Control: Slide
ZVÆ or rotate cVd.
XConfirming selection: Press W.
The climate control settings shows the
climate control settings for the driver and
front passenger.
Switching off rear climate controlXSelect climate control settings Q Central
climate control menu.
The current setting is indicated by a
dot #.
XSelecting Rear Climate Control OFF:
Slide ZVÆ or rotate cVd.
XConfirming selection: Press W.
The rear climate control is switched off.
Switching on the automatic function of
the rear climate control
XSelect climate control settings Q Central
climate control menu.
The current setting is indicated by a
dot #.
XSelecting Rear Automatic: Slide ZVÆ or
rotate cVd.
XConfirming selection: Press W.
The automatic function of the rear climate
control is switched on.
COMAND seats
Operating seats via COMAND
GObserve Safety notes, see page 286.
iThe components and operating principles
of COMAND can be found on (Y page 77).
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XDimming illumination: Turn knob :
counterclockwise.
Dirty or fogged-up windshield
The Night View Assist Plus image is
diminished when the windshield in front of the
camera is
R dirty
R fogged up on the outside
R fogged up on the inside
GWarning!
Please do not forget that your primary
responsibility is to drive the vehicle. A driver’s
attention to the road must always be his/her
primary focus when driving. For your safety
and the safety of others, stop before trying to
remove window fogging or cleaning the
windshield in front of the Night View Assist
Plus camera.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet
(approximately 14 m) every second.
XRemoving condensation: Check settings
of the climate control and change them, if
necessary ( Y page 363).XSwing the camera cover downward
( Y page 444).XCleaning inside of windshield: Use a soft,
non-scratching cloth ( Y page 444).
Blind Spot Assist
The Blind Spot Assist uses radar sensors to
monitor the area on both sides of your
vehicle. It will assist you when you change
lanes driving at speeds of above 20 mph
(30 km/h). A red warning lamp will come on
in the exterior rear view mirror as soon as
another vehicle is detected. If you then
activate the corresponding turn signals to
change lanes, the red warning lamp flashes
and warning sounds (collision warning). The
Blind Spot Assist operates using sensors in
the rear bumper.GWarning!
The Blind Spot Assist is only a driving aid and
may not detect all vehicles.
The Blind Spot Assist may not be able to
detect narrow vehicles such as motorcycles
or bicycles, or it may not detect them until it
is too late.
The monitoring function may be impaired if
your sensors are dirty, subject to heavy spray,
or if visibility is poor due to e.g. snow, rain, or
fog. This can result in vehicles not being
detected or being detected too late.
The Blind Spot Assist cannot detect road,
traffic and weather conditions.
It is the driver’s responsibility at all times to
be attentive to road, weather and traffic
conditions and to provide the steering,
braking and other driving inputs necessary to
retain control of the vehicle. Failure to do so
could result in recognizing dangers too late,
possibly resulting in an accident and serious
injury to yourself and others.
In order for the Blind Spot Assist to function,
the radar sensors must be switched on and
operational.
When traveling in Canada in a vehicle not
registered in Canada, you must switch off the
radar sensor system ( Y page 236). Canadian
law does not permit the use of the radar
sensor system for vehicles from outside of
Canada. When you switch off the radar sensor
system, the following functions are
deactivated:
R Blind Spot Assist
R BAS PLUS ( Y page 64)
R PRE-SAFE ®
Brake ( Y page 69)
R DISTRONIC PLUS ( Y page 330)
i USA only:
This device has been approved by the FCC
as a “Vehicular Radar System”. The radar
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FunctionRecommendation/NotesLAir distribution, leftMTemperature
control, lefti Set the temperature to 72‡ (22†).Notes on climate control system
i If you have the air distribution and air
volume automatically controlled, you can
adjust the temperature, footwell
temperature and air flow. The following
basic settings are recommended:
R Automatic air distribution control
( Y page 366)
R Temperature: 72‡ (22†) ( Y page 367)
R Footwell temperature: 0 ( Y page 214)
R Air flow: focused ( Y page 215)
The climate control system is operational
whenever the engine is running. You can
operate the climate control system in either
the automatic or manual mode. The system
cools or heats the interior depending on the
selected interior temperature.
It can only function optimally when you are
driving with the windows, the tilt/sliding
sunroof or tilt/sliding panel closed.
Nearly all dust particles, pollutants and odors
are filtered out before outside air enters the
passenger compartment through the air
distribution system.GWarning!
Severe conditions (e.g. strong air pollution)
may require replacement of the filter before
its scheduled replacement interval. A clogged
filter will reduce the air volume to the interior
and the windows could fog up, impairing
visibility and endangering you and others.
Have a clogged filter replaced as soon as
possible at an authorized Mercedes-Benz
Center.
GWarning!
Follow the recommended settings for heating
and cooling given on the following pages and
in the “COMAND automatic climate control”
section. Otherwise the windows could fog up,
impairing visibility and endangering you and
others.
XKeep the air intake grille in front of the
windshield free of snow and debris.
Do not obstruct air flow by placing objects on
the air flow-through exhaust slots below the
rear window.
i If the vehicle interior is hot, ventilate the
interior before driving off, see “Summer
opening feature” (Y page 309). The climate
control will then adjust the interior
temperature to the set value much faster.
The following climate control functions can
be operated via COMAND:
R Temperature ( Y page 211)
R Air distribution ( Y page 212)
R Air volume ( Y page 212)
R Switching off cooling ( Æ) (Y page 213)
R Central climate control ( Mono)
( Y page 214)
R Footwell temperature ( Y page 214)
R Air flow from air vents ( Y page 215)
R Rear climate control ( Y page 215)
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Deactivating the climate control
systemGWarning!
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.
Deactivating the front climate control
XDeactivating: Press rocker switch ^ up
or down.
The indicator lamp in the rocker switch
comes on. You will see Climate Control
OFF in the COMAND display.XReactivating: Press rocker switch ^ up
or down.
The indicator lamp in the rocker switch
goes out. You will see the previous settings
in the COMAND display.
Deactivating the rear climate control
Operating on the front climate control
panel
XActivate the RearY function via
COMAND ( Y page 215). This function is
used to operate the rear climate control via
COMAND and the rocker switches on the
control panel from the front.XDeactivating: Press rocker switch ^ up
or down.
The indicator lamp in the rocker switch
comes on.XReactivating: Press rocker switch ^ up
or down.
The indicator lamp in the rocker switch
goes out. The previous settings are once
again in effect.Operating on the rear climate control
panelXDeactivating: Press rocker switch J
( Y page 363) up or down repeatedly until
OFF mode is selected in display.XReactivating: Press rocker switch J up or
down repeatedly until AUTO mode is
selected in display.
or
XPress rocker switch J up or down
repeatedly until MAN mode is selected in
display.
Air conditioning
The air conditioning is operational while the
engine is running and cools the interior air to
the temperature set by the operator. In
addition, the air conditioning dehumidifies
the interior air and helps prevent window
fogging.
GWarning!
If you deactivate the air conditioning, 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.
i Condensated water may drip out from
underneath the vehicle. This is normal and
not an indication of a malfunction.
The air conditioning uses the refrigerant
R134a. This refrigerant is free of CFCs which
are harmful to the ozone layer.
The cooling function can be activated or
deactivated via COMAND ( Y page 213).
Automatic mode
When operating the climate control system in
automatic mode, the interior air temperature,
air volume and air distribution are adjusted
automatically.
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Side air vents
Example illustration driver’s side
:Left side defroster air vent, fixed;Left side air vent, adjustable=Thumbwheel for air volume control for
adjustable left side air vent
XOpening/closing: Turn thumbwheel =
upward or downward.
Ventilated glove box
The glove box can be ventilated, for instance
to cool its contents, when the climate control
system is activated. The level of airflow to the
glove box depends on the airflow and air
distribution settings. The temperature of the
air is approximately the same as that of the
air flowing from the center air vents.
! Close the glove box air vent when heating
the vehicle interior. Activate the air
conditioning (cooling function) when the
outside temperature is high. Otherwise,
temperature-sensitive items stored in the
glove box could be damaged.
XOpening: Turn thumbwheel : clockwise
from position 3 to position 2.
XClosing: Turn thumbwheel :
counterclockwise from position 2 to
position 3.
Rear center console air vents
:Left rear center air vent, adjustable;Right rear center air vent, adjustable=Thumbwheel for air volume control for
right rear center air vent
?Rear climate control panelAThumbwheel for air volume control for left
rear center air vent
XOpening/closing: Turn thumbwheel = or
A in the required direction.
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ActivatingXPress rocker switch ¬ up or down.
The indicator lamp in the rocker switch
comes on.
The climate control switches to the following
functions automatically:
R most efficient blower speed and heating
power, depending on outside temperature
R air flows onto the windshield and the front
door windows
R the air conditioning compressor switches
on at outside temperatures above
approximately 41‡ (5†) for air-drying
Adjustments
You can adjust the air volume and the
temperature when the front defroster is
switched on. The air flow will remain on the
windshield and front door windows.
XPress rocker switch K up or down to
increase or decrease air volume to the
desired level.
The air volume increases/decreases to the
next higher/lower blower speed and
heating switches to the temperature that
was set before the front defroster was
switched on.
The indicator lamp in rocker switch ¬
goes out.
or
XPress rocker switches w up or down.
Heating switches to the temperature that
was set before the front defroster was
switched on.
The indicator lamp in rocker switch ¬
goes out.
i The air conditioning compressor remains
on even with the indicator lamp in button
¬ goes out. This helps to prevent
windshield from fogging.
DeactivatingXPress rocker switch ¬ up or down.
The indicator lamp in the rocker switch
goes out.
The previous settings are once again in
effect, except air recirculation mode stays
off.
Windshield fogged on the outside
XSwitch the windshield wipers on
( Y page 305).XPress rocker switch à up or down.
The indicator lamp in the rocker switch
comes on.
Maximum cooling MAX COOL
MAX COOL is only available in U.S. vehicles.
MAX COOL is only operational when the
engine is running.
If à is selected on both the left and right
side and there is a high demand for cooling,
the display MAXCOOL appears in the COMAND
display.
This provides the fastest possible cooling of
the vehicle interior (when windows and tilt/
sliding sunroof or tilt/sliding panel are
closed).
Air recirculation mode
Switch to air recirculation mode to prevent
unpleasant odors from entering the vehicle
from the outside (e. g. before driving through
a tunnel). This setting cuts off the intake of
outside air and recirculates the air in the
passenger compartment.
GWarning!
Fogged windows impair visibility,
endangering you and others. If the windows
begin to fog on the inside, switching off the
air recirculation mode immediately should
clear interior window fogging. If interior
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