2010 MERCEDES-BENZ R320 warning

The area behind the vehicle appears in the
COMAND system display as a mirror image,
like in the rear view mirror.
In addition, the rear view camera contains
guidelines to help you with driving in reverse.
G
Warning!
Make sure no persons or animals are in or
near the area in which you are parking/
maneuvering. Otherwise, they could be
injured. G
Warning!
The rear view camera is only an aid and may
display obstacles
R from a distorted perspective
R inaccurately
R may not display obstacles at all
The rear view camera does not relieve you of
the responsibility to be cautious. Take care
and pay careful attention. The rear view
camera may not show objects which are
R very close to the rear bumper
R under the rear bumper
R above the tailgate handle
You are responsible for safety at all times and
must continue to pay attention to the
immediate surroundings when parking and
maneuvering. This includes the area behind,
in front of, and beside the vehicle. Otherwise
you could endanger yourself and/or others. G
Warning!
The rear view camera either will not function
or will not function to its full capability if
R the tailgate is open
R it is raining very hard, snowing or foggy
R it is night or you are parking/maneuvering
your vehicle in an area where it is very dark
R the camera is exposed to a very bright white
light R
the immediate surroundings are
illuminated with fluorescent light (the
display may flicker)
R there is a sudden change in temperature,
e.g. if you drive into a heated garage from
the cold (lens condensation)
R the camera lens is dirty or covered
R the rear of your vehicle is damaged
In this case, have the position and setting
of the camera checked by a qualified
specialist workshop. Mercedes-Benz
recommends that you contact a Mercedes-
Benz Center for this purpose.
Do not use the rear view camera in these
situations. Otherwise you could injure
yourself or others and/or damage property
including your vehicle while parking/
maneuvering. G
Warning!
Use of rear view camera can be dangerous if
you are color-blind or have impaired color
vision.
Only use rear view camera if you can see and
distinguish all colored guidelines shown by
rear view camera on the COMAND system
display. Camera lens
: must be free of dirt, ice,
snow, and slush to function properly. Clean
the camera lens regularly. Being careful not
to scratch or damage the camera lens, see
“Cleaning the rear view camera lens”
(Y page 266). 160
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Switching on/off
X
Switching on: Switch on the ignition.
X Switch on the COMAND system.
X Shift the automatic transmission to reverse
gear R.
The COMAND system display will show the
area behind the vehicle with guidelines. G
Warning!
Please note that objects which do not touch
the ground may appear to be further away
than they actually are, for example:
R the bumper of a vehicle parked behind you
R a trailer hitch
R the back of a truck
In such cases, you should not use the
guidelines to judge the distance. You may
misjudge the distance which increases the
risk of impacting the objects.
Even when the object you approach is directly
on the ground do not approach the object any
closer than the red guideline. Red guideline
= indicates an approximate
distance of 10 in (0.25 m) from the rear of the
vehicle. Yellow guidelines ; indicate an
approximate distance of 3 ft (1 m) from the
rear of the vehicle. Blue guidelines :
indicate the approximate width required for
the vehicle.
i The image from the rear view camera will
no longer be displayed if you select another
function on the COMAND system while
reverse gear R is engaged. To display the
image again, disengage and reengage
reverse gear R.
X Switching off: Shift the automatic
transmission into park position P, neutral
position N, or drive position D. Driving systems
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Overview of climate control system functions and air vents
Your vehicle is equipped with either of the following climate control systems: Climate control
(Y page 164) 3-zone automatic climate control
USA only
(Y page 170) Canada only (Y page 172)
The climate control combines an automatic
heating and ventilation system with a cooling
system. You can adjust the automatic
climate control separately for the driver’s
and passenger side. The 3-zone automatic climate control
combines an automatic heating and
ventilation system with a cooling system.
You can adjust the 3-zone automatic climate
control separately for each zone in the
vehicle.
Rear automatic climate
control
(Y page 174) The rear automatic climate control allows
separate climate settings for the rear
compartment. Air vents
G
Warning!
When operating the climate control, the air
that enters the passenger compartment
through the air vents can be very hot or very
cold (depending on the set temperature). This
may cause burns or frostbite to unprotected
skin in the immediate area of the air vents.
Always keep sufficient distance between
unprotected parts of the body and the air
vents. If necessary, use the air distribution
adjustment to direct the air to air vents in the
vehicle interior that are not in the immediate
area of unprotected skin. 162
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Function Recommendation/Notes
I
Rear window defroster (Y page 180)
J
Air recirculation i
Only use this function for a
short time, e.g. in a tunnel.
Otherwise, the windows can
fog
up due to lack of fresh air. (Y page 169)
K
Interior temperature sensor
L
Climate control on/off i
Switches on the climate
control system. The indicator
lamp

in button ^ goes out. (Y page 166)
Notes on climate control
The climate control 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 and the current
outside temperature.
Nearly all dust particles, pollutants and odors
are filtered out before outside air enters the
passenger compartment through the air
distribution system. G
Warning!
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.
The air conditioning will not engage (no
cooling) if the A/C mode is deactivated
(Y page 167). G
Warning!
Follow the recommended settings for heating
and cooling given on the following pages.
Otherwise the windows could fog up, impairing visibility and endangering you and
others.
Keep the air intake grille in front of the
windshield free of snow and debris.
i If the vehicle interior is hot, ventilate the
interior before driving off, see “Summer
opening

feature” (Y page 108). The climate
control will then adjust the interior
temperature to the set value much faster. Deactivating the climate control
system
G
Warning!
When the climate control system is switched
off, the outside air supply and circulation are
also

switched off. Only choose this setting for
a short time. Otherwise the windows could fog
up, impairing visibility and endangering you
and others.
X Deactivating: Press button ^.
The
indicator lamp in the button comes on.
X Reactivating: Press button Ã.
i You can also press button ^ on the
climate control panel. 166
Climate control
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If you press button ¦ to reactivate the
climate control system, the defrosting
mode is activated.
Deactivating the rear climate control
from the front X
Deactivating: Press button ±.
The indicator lamp in the button comes on.
X Reactivating: Press button ±.
The indicator lamp in the button goes out. 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. G
Warning!
If you switch off 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 Condensation may drip out from
underneath the vehicle. This is normal and
not an indication of a malfunction.
Deactivating It is possible to deactivate the air
conditioning. The interior air will then no
longer be cooled or dehumidified.
X
Press button Á.
The indicator lamp in the button goes out.
The cooling function switches off after a
short delay.
Activating Moist air can fog up the windows. You can
dehumidify the interior air with the air
conditioning. X
Press button Á again.
The
indicator lamp in the button comes on.
The air conditioning uses the refrigerant
R134a.
This refrigerant is free of CFCs which
are harmful to the ozone layer.
! If the air conditioning cannot be activated
again, this indicates that the air
conditioning is losing refrigerant. The
compressor has turned off.
Have the air conditioning checked at the
nearest authorized Mercedes-Benz Center. Automatic mode
When
operating the climate control system in
automatic mode, the interior air temperature,
air volume and air distribution are adjusted
automatically.
In automatic mode, cooling with
dehumidification is switched on. This function
can be switched off if necessary. G
Warning!
If you switch off 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.
X Set the desired temperature
(Y page 168).
X Activating: Press button Ã.
The
indicator lamp in the button comes on.
The air volume and air distribution are
adjusted automatically.
i The settings for the passenger side are
also used for the rear passenger
compartment.
X Deactivating:
Press button I or K.
The indicator lamp in button à goes out.
The automatic operation of air volume
switches off. The selected blower speed is Climate control
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X
Press button I to decrease or button
K to increase air volume to the desired
level.
The air volume decreases/increases to the
next lower/higher blower speed and
heating switches to the temperature that
was set before the front defroster was
switched on.
The indicator lamp in button ¦ goes out.
The indicator lamp in button Á comes
on.
or
X Turn temperature control : and/or C
(Y page 164) slightly in any direction.
Heating switches to the temperature that
was set before the front defroster was
switched on.
The

indicator lamp in button ¦ goes out.
The indicator lamp in button Á comes
on.
i The air conditioning compressor remains
on even if the indicator lamp in button
¦ goes out. This helps to prevent the
windshield from fogging.
Deactivating X
Press button ¦ again.
The indicator lamp in the button goes out.
Defrosting is turned off.
The previous settings are once again in
effect. The air conditioning compressor
remains switched on.
i To deactivate, you can also press button
^ or Ã.
Windshield fogged on the outside X
Switch the windshield wipers on
(Y page 104).
X Press air distribution button P
or O. 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. G
Warning!
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
window fogging persists, make sure the air
conditioning is activated, or press button
¦.
X Activating: Press button d.
The
indicator lamp in the button comes on.
i The air recirculation mode is activated
automatically at high outside
temperatures.
The

indicator lamp in button d is not lit
when the air recirculation mode is switched
on automatically.
A quantity of outside air is added after
approximately 30 minutes.
If you have turned off the air conditioning
or the outside temperature is below 41‡
(5†), the air recirculation mode will not
switch on automatically.
X Deactivating: Press button d.
The indicator lamp in the button goes out. Climate control
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Function Recommendation/Notes
O
Interior temperature sensor
P
Adopting driver’s side settings
for all zones (Y page 180)
Rear automatic climate control
:
Increasing air volume
; Temperature control
= Air distribution and air volume (automatic
mode)
? Air distribution (directs air through the
side air vents)
A Air distribution (directs air through the
footwells and side air vents)
B Rear automatic climate control on/off
C Decreasing air volume Notes on 3-zone automatic climate
control
With the help of a sun sensor, the automatic
climate control determines the relation of the
sun to the vehicle and automatically adjusts
the inside temperature for every individual
zone.
The automatic climate control is operational
whenever the engine is running. It cools the
vehicle’s interior according to the angle and
intensity of the sun’s rays, the outside
temperature and the selected temperature.
You can operate the automatic climate
control in either the automatic or manual
mode. Nearly all dust particles, pollutants and odors
are filtered out before outside air enters the
passenger compartment through the air
distribution system. G
Warning!
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.
The air conditioning will not engage (no
cooling) if the A/C mode is deactivated
(Y page 175). G
Warning!
Follow the recommended settings for heating
and cooling given on the following pages.
Otherwise the windows could fog up,
impairing visibility and endangering you and
others.
Keep the air intake grille in front of the
windshield free of snow and debris.
i If the vehicle interior is hot, ventilate the
interior before driving off, see “Summer
opening feature” (Y page 108). The climate
control will then adjust the interior
temperature to the set value much faster. 174
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Deactivating the climate control
system
G
Warning!
When the climate control system is switched
off, the outside air supply and circulation are
also
switched off. 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 X
Deactivating: Press button ^.
The
indicator lamp in the button comes on.
Canada only: Display J (Y page 172) is
cleared.
X Reactivating: Press button Ã.
i You can also press button ^ on the
climate control panel.
If you press button ¦ to reactivate the
climate control system, the defrosting
mode is activated.
Deactivating the rear climate control
from the front USA only
X
Deactivating: Press button ±.
The
indicator lamp in the button comes on.
X Reactivating: Press button ±.
The indicator lamp in the button goes out.
Canada only
X Deactivating: Press button X.
The
indicator lamp in the button comes on.
In display J (Y page 172), you will see the
Y symbol followed by MODE for
approximately 3 seconds.
X Within these 3 seconds press button
^.
In

display J, you will see the Y symbol
followed by OFF.
The rear climate control is switched off.
X Reactivating: Press button X. The indicator lamp in the button comes on.
In

display J, you will see the Y symbol
followed by ON and MODE. The MODE display
is cleared and the indicator lamp in button
X goes out after approximately
3 seconds.
The rear climate control switches on.
Deactivating the rear climate control
from the rear X
Deactivating: Press button ^.
The
indicator lamp in the button comes on.
X Reactivating: Press button Ã.
The
indicator lamp in the button comes on. 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. G
Warning!
If you switch off 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 Condensation may drip out from
underneath the vehicle. This is normal and
not an indication of a malfunction.
Deactivating It is possible to deactivate the cooling
function of the climate control system. The
interior air will then no longer be cooled or
dehumidified.
X
Press button Á.
The indicator lamp in the button goes out.
The cooling function switches off after a
short delay. 3-zone automatic climate control
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