2007 MERCEDES-BENZ R320CDI ESP

217 Controls in detail
Good visibility
Rear window defroster
The rear window defroster uses a large
amount of power. To keep battery drain to
a minimum, switch off the defroster as
soon as the rear window is clear. The de-
froster is automatically deactivated after
approximately 6 to 17 minutes of
operation depending on the outside tem-
perature.
Switch on the ignition (page 39).Activating
Press button1 on the climate con-
trol panel (
page 220) or the automat-
ic climate control* panel (
page 234).
The indicator lamp on the button
comes on.
Deactivating
Press button1 once more.
The indicator lamp on the button goes
out.
!With the sunshade raised and the respective
door window open, the sunshade could disen-
gage and snap back when driving at high vehicle
speeds, e.g. on highways, and damage the
retractor. You should therefore always either
close the door window or lower the sunshade
when driving at high speed.
Warning!G
Any accumulation of snow and ice should be
removed from the rear window before driv-
ing. Visibility could otherwise be impaired,
endangering you and others.!If the rear window defroster switches off too
soon and the indicator lamp starts flashing, too
many electrical consumers are operating simul-
taneously and there is insufficient voltage in the
battery. The system responds automatically by
switching the rear window defroster off.
As soon as the battery has sufficient voltage, the
rear window defroster switches back on auto-
matically.

224 Controls in detail
Climate control
Adjusting air volume
Five blower speeds are available.
Press button
to decrease or
buttonQ to increase air volume
(
page 220) to the desired level.
The indicator lamp on buttonU
(
page 220) goes out. The automatic
operation of air volume switches off.
The selected blower speed is
shown in the air volume display b
(
page 220).
Adjusting air volume for the center and
side air vents
Opening the center air vents
Turn thumbwheels 5 and 6
(
page 218) upward.
The corresponding center air vents on
the left and right are open.Closing the center air vents
Turn thumbwheels 5 and 6
(
page 218) downward.
The corresponding center air vents on
the left and right are closed.
Opening the side air vents
Turn thumbwheels 2 and 7
(
page 218) upward.
The corresponding side air vents on the
left and right are open.
Closing the side air vents
Turn thumbwheels 2 and 7
(
page 218) downward.
The corresponding side air vents on the
left and right are closed.
Front defroster
You can use this setting to defrost the
windshield, for example if it is iced up. You
can also use it to defog the windshield and
side windows.
Activating
Press button0 (page 220).
The indicator lamp on the button
comes on.
iKeep this setting selected only until the
windshield or the side windows are clear again.
When the defrost setting has been selected, only
the rear window defroster can be switched on.
No other settings are possible.

227 Controls in detail
Climate control
Air recirculation mode with
convenience closing and opening
feature
Vehicles with tilt/sliding sunroof*
Convenience closing:
Press button: for approximately
2 seconds.
The windows and/or tilt/sliding sun-
roof will close. You can release
button: once the closing proce-
dure has begun. The windows and
tilt/sliding sunroof continue closing
until they are fully closed. The indicator
lamp on the button comes on. The air
recirculation mode is activated.Convenience opening:
Press button: for approximately
2 seconds.
The windows and/or tilt/sliding sun-
roof will return to their previous posi-
tions. You can release button:
once the opening procedure has
begun. The windows and tilt/sliding
sunroof continue opening until they
have reached their previous positions.
The indicator lamp on the button goes
out. The air recirculation mode is
deactivated.
Vehicles with panorama roof*
Convenience closing:
Press and hold button: until the
windows and the tilt/sliding panel are
closed or have reached the desired
position. The indicator lamp on the
button comes on. The air recirculation
mode is activated.
Warning!G
Never operate the windows and tilt/sliding
sunroof* or tilt/sliding panel* if there is the
possibility of anyone being harmed by the
opening or closing procedure.
In case the procedure causes potential dan-
ger:
Vehicles with or without tilt/sliding sun-
roof*: The closing of the windows can be im-
mediately halted by pressing or pulling the
respective window switch. The closing of the
tilt/sliding sunroof* can be immediately
halted by moving the switch for the
tilt/sliding sunroof* in any direction.
The closing of the windows and the
tilt/sliding sunroof* can be reversed by
again pressing and holding the: button.
Vehicles with panorama roof*: The closing
of the windows and tilt/sliding panel* can
be immediately halted by releasing
the:button.
iA window, the tilt/sliding sunroof*, or the
tilt/sliding panel* will only return to its previous
position if it has not been moved to another
position using the respective window switch or
tilt/sliding sunroof* (or tilt/sliding panel*)
switch after it was closed with button :.


237 Controls in detail
3-zone automatic climate control*
Operating the automatic climate
control system in automatic mode
You can switch the automatic climate
control system on and off separately for
each zone as needed.
Activating
Press buttonU (page 234) while
the engine is running.
The indicator lamp on the button
comes on.
AUTO appears in the
displaye (
page 234). Air volume
and air distribution are controlled
separately for each zone.
Use temperature controls1 and9
(
page 234) to separately adjust the
air temperature on each side of the
passenger compartment.
The temperature of the interior is
adjusted automatically.
Deactivating
Press one button of the air distribution
(
page 234) or press button

orQ (
page 234).
The indicator lamp on the buttonU
goes out and
AUTO disappears in the
displaye (
page 234).
Depending on which button you press –
the air distribution button or the air vol-
ume button
or Q – automatic
control of either the air distribution or
air volume is switched off.
Setting the temperature
Use temperature controls1 and9
(
page 234) to separately adjust the air
temperature on each side of the passenger
compartment. You should raise or lower
the temperature setting in small incre-
ments, preferably starting at 72°F (22°C).
The automatic climate control will adjust
to the set temperature as fast as possible.
Increasing
Turn temperature control
1and/or9 slightly clockwise.
The automatic climate control system
will correspondingly adjust the interior
air temperature.
Decreasing
Turn temperature control
1and/or9 slightly counterclock-
wise.
The automatic climate control system
will correspondingly adjust the interior
air temperature.
iWhen operating the automatic climate con-
trol system in automatic mode, you will only
rarely need to adjust the temperature, air volume
and air distribution.
In automatic mode, cooling with dehumidify is
switched on. This function can be switched off if
necessary.

238 Controls in detail
3-zone automatic climate control*
Adjusting air distribution
Use the air distribution buttons3,h,
orj for the driver’s side, or7,b, orc
(
page 234) for the passenger side to
separately adjust the air distribution on
each side of the passenger compartment.
The following symbols are found on the
buttons:
Press the desired air distribution
button (
page 234).
The indicator lamp on the desired
button comes on.
Adjusting the air distribution for the
center and side air vents
Opening the center air vents
Turn thumbwheels 5 and 6
(
page 232) upward.
The corresponding center air vents on
the left and right are open.
Closing the center air vents
Turn thumbwheels 5 and 6
(
page 232) downward.
The corresponding center air vents on
the left and right are closed.Opening the side air vents
Turn thumbwheels 2 and 7
(
page 232) upward.
The corresponding side air vents on the
left and right are open.
Closing the side air vents
Turn thumbwheels 2 and 7
(
page 232) downward.
The corresponding side air vents on the
left and right are closed.
SymbolFunction
Driver’s
sidePassen-
ger side
6ZDirects air to the
windshield and
side air vents
7aDirects air through
the center, side
and rear passen-
ger compartment
air vents
8YDirects air to the
footwells and side
air vents

241 Controls in detail
3-zone automatic climate control*
Activating
Press button: (page 234).
The indicator lamp on the button
comes on.
Deactivating
Press button: (page 234).
The indicator lamp on the button goes
out.
At outside temperatures above
79°F (26°C) the system will not automati-
cally switch back to outside air. A quantity
of outside air is added after approximately
30 minutes.
iThe air recirculation mode is activated
automatically at high outside temperatures.
The indicator lamp on button: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
(
page 243) or the outside temperature is
below 41°F (5°C), the air recirculation mode will
not switch on automatically.
Warning!G
Never operate the windows and tilt/sliding
sunroof* or tilt/sliding panel* if there is the
possibility of anyone being harmed by the
opening or closing procedure.
In case the procedure causes potential
danger:
Vehicles with or without tilt/sliding
sunroof*: The closing of the windows can be
immediately halted by pressing or pulling
the respective window switch. The closing of
the tilt/sliding sunroof* can be immediately
halted by moving the switch for the
tilt/sliding sunroof* in any direction.
The closing of the windows and the
tilt/sliding sunroof* can be reversed by
again pressing and holding the:button.
Vehicles with panorama roof*: The closing
of the windows and tilt/sliding panel* can
be immediately halted by releasing
the:button.
iTo cool the interior as fast as possible,
the automatic climate control automatically
switches to air recirculation. The indicator lamp
on button: is not lit when the system
switches to air recirculation automatically.
iThe air recirculation mode is deactivated
automatically

after 5 minutes if the outside temperature is
below approximately 41°F (5°C)

after 5 minutes if the air conditioning and
air-drying is turned off

after 30 minutes if the outside temperature
is above approximately 41°F (5°C)

242 Controls in detail
3-zone automatic climate control*
Air recirculation mode with
convenience closing and opening
feature
Vehicles with tilt/sliding sunroof*
Convenience closing:
Press button: for approximately
2 seconds.
The windows and/or tilt/sliding
sunroof will close. You can release
button: once the closing proce-
dure has begun. The windows and
tilt/sliding sunroof continue closing
until they are fully closed. The indicator
lamp on the button comes on. The air
recirculation mode is activated.Convenience opening:
Press button: for approximately
2 seconds.
The windows and/or tilt/sliding
sunroof will return to their previous
positions. You can release button:
once the opening procedure has
begun. The windows and tilt/sliding
sunroof continue opening until they
have reached their previous positions.
The indicator lamp on the button goes
out. The air recirculation mode is
deactivated.
Vehicles with panorama roof*
Convenience closing:
Press and hold button: until the
windows and the tilt/sliding panel are
closed or have reached the desired po-
sition. The indicator lamp on the button
comes on. The air recirculation mode is
activated.
Warning!G
Never operate the windows and tilt/sliding
sunroof* or tilt/sliding panel* if there is the
possibility of anyone being harmed by the
opening or closing procedure.
In case the procedure causes potential
danger:
Vehicles with or without tilt/sliding
sunroof*: The closing of the windows can be
immediately halted by pressing or pulling
the respective window switch. The closing of
the tilt/sliding sunroof* can be immediately
halted by moving the switch for the
tilt/sliding sunroof* in any direction.
The closing of the windows and the
tilt/sliding sunroof* can be reversed by
again pressing and holding the: button.
Vehicles with panorama roof*: The closing
of the windows and tilt/sliding panel* can
be immediately halted by releasing
the:button.
iA window, the tilt/sliding sunroof*, or the
tilt/sliding panel* will only return to its previous
position if it has not been moved to another
position using the respective window switch or
tilt/sliding sunroof* (or tilt/sliding panel*)
switch after it was closed with button :.

248 Controls in detail
3-zone automatic climate control*
Setting the temperature
Use temperature controla (
page 245)
to separately adjust the air temperature of
the rear passenger compartment.
You should raise or lower the temperature
setting in small increments, preferably
starting at 72°F (22°C). The automatic
climate control will adjust to the set
temperature as fast as possible.Increasing the temperatureTurn temperature controla
(
page 245) slightly clockwise.
The rear automatic climate control will
correspondingly adjust the interior air
temperature for the rear passenger
compartment.
Decreasing the temperature
Turn temperature controla
(
page 245) slightly counterclock-
wise.
The rear automatic climate control will
correspondingly adjust the interior air
temperature for the rear passenger
compartment.Adjusting air volume
Adjusting manually
Five blower speeds are available.
Press button
to decrease or
buttonQ to increase air volume to
the desired level.
The indicator lamp on buttonU
goes out. The selected blower speed is
shown by the indicator lamps for air
volume settings 9 (
page 245).
Adjusting automatically
Press buttonU.
The indicator lamp on the button
comes on. The air volume is adjusted
automatically.
iThe rear automatic climate control will not
cool the air when the air conditioning is switched
off (
page 243).