2007 MERCEDES-BENZ E350 4MATIC WAGON air conditioning

220 Controls in detailDual-zone automatic climate controlActivating
Switch off the ignition.

Press buttonT (
page 209).
REST
in the display4 (
page 209)
comes on.
Deactivating

Press buttonT (
page 209) again.
REST
in the display4 (
page 209)
goes out.Rear passenger compartment
adjustable air vents
The air conditioning for the rear passenger
compartment is controlled via the climate
control panel (
page 208).The air vents for the rear passenger
compartment are located in the rear
center console.
1Left center air vent, adjustable
2Right center air vent, adjustable
3Thumbwheel for air volume control for
right rear center air vent
4Thumbwheel for air volume control for
left rear center air vent
i
The residual heat is automatically turned off:


when the ignition is switched on


after about 30 minutes


if the battery voltage drops


if the coolant temperature is too low
i
The temperature at the center air vents1
and2 for the rear passenger compartment is
nearly the same as at the dashboard center air
vents.

224 Controls in detail4-zone automatic climate controlUSA only1
Air distribution, driver’s side
2
Front defroster
3
Temperature rocker switch, driver’s
side
4
Display
5
Temperature rocker switch,
passenger side
6
Rear window defroster
7
Air distribution, passenger side
8
Air distribution and air volume,
passenger side (automatic, manual)
9
AC cooling on/off
a
Rear air-conditioning remote control
b
Increasing air volume
c
Climate control on/off
d
Decreasing air volume
e
MAX COOL on/off
f
Air recirculation
g
Air distribution and air volume,
driver’s side (automatic, manual)

225 Controls in detail
4-zone automatic climate control
Canada only1
Air distribution, driver’s side
2
Front defroster
3
Temperature rocker switch, driver’s
side
4
Display
5
Temperature rocker switch,
passenger side
6
Rear window defroster
7
Air distribution, passenger side
8
Air distribution and air volume,
passenger side (automatic, manual)
9
AC cooling on/off
a
Rear air-conditioning remote control
b
Increasing air volume
c
Climate control on/off
d
Decreasing air volume
e
Residual heat/ventilation
f
Air recirculation
g
Air distribution and air volume,
driver’s side (automatic, manual)

227 Controls in detail
4-zone automatic climate control
Nearly all dust particles, pollutants and
odors are filtered out before outside air en-
ters the passenger compartment through
the air distribution system.
The air conditioning will not engage (no
cooling) if the A/C mode (
page 235) is
deactivated. Deactivating the climate control
system
Deactivating
Press button´ (
page 224) or
(
page 225) until the display4
(page 224) or (
page 225) is
cleared.
Warning!
G
Follow the recommended settings for heat-
ing and cooling given on the following pag-
es. Otherwise the windows could fog up,
impairing visibility and endangering you and
others.
i
Severe conditions (e.g. strong air pollution)
may require replacement of the filter before its
scheduled interval. A clogged filter will reduce
the air volume to the interior.
If the vehicle interior is hot, ventilate the interior
before driving off, see “Summer opening fea-
ture” (page 241). The climate control will then
adjust the interior temperature to the set value
much faster.
Keep the air intake grille in front of the wind-
shield free of snow and debris.
Do not obstruct air flow by placing objects on the
air flow-through exhaust slots below the rear
window.
Warning!
G
When the climate control 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.

231 Controls in detail
4-zone automatic climate control
Adjusting air volume
Use buttonsU (
page 224) or
(
page 225) for automatic mode or air
volume buttons
orQ
(page 224) or (
page 225) to adjust air
volume manually.
Nine blower speeds are available.

Press button
to decrease or
buttonQ to increase air volume to
the desired level.
The
AUTO
indicator for air volume in the
display4 (
page 224) or
(
page 225) goes out. The selected
blower speed is shown in the
display4. Automatic air distribution
remains switched on.
The indicator lamps on the U but-
tons remain lit.
Front defroster
You can use this setting to defrost the
windshield, for example if it is iced up.
You can also defog the windshield and the
windows.
Activating
Press button0 or P
(page 224) or (
page 225).
The indicator lamp on the button
comes on. Display4 (
page 224) or
(
page 225) is cleared.The air conditioning switches
automatically to the following functions:


cooling on to dehumidify


maximum blowing and heating power
(depends on cooling temperature)


air flows onto the windshield and the
front windows


the air recirculation mode is switched
off
Deactivating

Press button0 or P
(page 224) or (
page 225) again.
The indicator lamp on the button goes
out. Defrosting is turned off.
The previous settings are once again in
effect.
i
Keep this setting selected only until the
windshield or the windows are clear again.
i
If you have switched on the defrost function
using the0 or P button, you cannot
make any other settings.
i
The cooling remains switched on.

232 Controls in detail4-zone automatic climate controlWindshield fogged on the outside
Switch the windshield wipers on
(page 57).
If the automatic mode of the climate con-
trol is switched off:

Turn air distribution controls1 and 7
to a or Y (
page 224) or
(
page 225).Maximum cooling MAX COOL
(USA only)
You can use this setting to provide the fast-
est possible cooling of the vehicle interior
(when windows and tilt/sliding sunroof or
tilt/sliding panel* are closed).
Activating
Press buttone (
page 224).
MAX COOL
appears in the display4
(
page 224).
The air conditioning switches
automatically to the following functions:


maximum cooling


maximum blowing power


the air recirculation mode is switched
onDeactivating

Press buttone (
page 224) again.
MAX COOL
disappears in the display4
(
page 224).
The previous settings are once again in
effect.
i
Keep this setting selected only until the
windshield is clear again.
i
To switch the maximum cooling function off,
you can also press button ´, U, 0 or
1 (
page 224).

233 Controls in detail
4-zone automatic climate control
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.Activating

Press button, (
page 224) or
(
page 225).
The indicator lamp on the button
comes on.Deactivating

Press button, (
page 224) or
(
page 225).
The indicator lamp on the button goes
out.
Warning!
G
Fogged windows impair visibility, endanger-
ing 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 (
page 235) is activated, or
press buttonP or0.
i
The air recirculation mode is activated auto-
matically at high outside temperatures and if the
concentration of carbon monoxide (CO) and ni-
trogen oxide in the outside air increases, for ex-
ample in a tunnel.
The indicator lamp on button, is not lit when
the air recirculation mode is automatically
switched on.
A quantity of outside air is added after approxi-
mately 30 minutes.
i
The air recirculation mode is deactivated au-
tomatically:


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


after 5 minutes if the air conditioning is
turned off


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

235 Controls in detail
4-zone automatic climate control
Combination filter with pollutant-sensi-
tive air-recirculation mode
The combination filter reduces pollutants
and unpleasant odors in the outside air.
The pollutant-sensitive air-recirculation
mode automatically switches off the sup-
ply of outside air when pollutants are de-
tected in the air.
Air conditioning
The cooling function, only operational
when the engine is running, cools the vehi-
cle interior down to the selected tempera-
ture. The cooling function also
dehumidifies the air in the vehicle interior,
thus preventing the windows from fogging
up.Deactivating
It is possible to deactivate the air condi-
tioning (cooling) function of the climate
control system. The air in the vehicle will
then no longer be cooled or dehumidified.

Press button2 (
page 224) or
(
page 225).
The indicator lamp on the button goes
out.
Activating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.

Press button2 (
page 224) or
(
page 225) again.
The indicator lamp on the button
comes on.
The air conditioning uses the refrigerant
R134a. This refrigerant is free of CFCs
which are harmful to the ozone layer.
i
The pollutant-sensitive air-recirculation
mode is not possible if you have switched off the
air conditioning or if the temperature falls below
41°F (5°C).
i
Condensation may drip out from underneath
the vehicle. This is normal and not an indication
of a malfunction.Warning!
G
If you turn 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.