2007 MERCEDES-BENZ E320 BLUETEC air conditioning

219 Controls in detail
Dual-zone automatic climate control
Rear passenger compartment adjustable air vents
The air conditioning for the rear passenger
compartment is controlled via the climate
control panel (
page 206) or
(
page 207).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 ventAdjusting air distribution

Move the slider for the left center air
vent1 or right center air vent2 to
the left, right, up or down.
The air flow is directed in the corre-
sponding direction.
Adjusting air volume

Turn thumbwheel3 or4 up or down.
The air volume is increased or
decreased.
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.
i
For draft-free ventilation, move the sliders
for the center air vents1 and2 upward.

222 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)

223 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)

225 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/Cmode (
page 234) is
deactivated.Deactivating the climate control
system
Deactivating
Press button´ (
page 222) or
(
page 223) until the display4
(page 222) or (
page 223) 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 239). 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.

229 Controls in detail
4-zone automatic climate control
Adjusting air volume
Use buttonsU (
page 222) or
(
page 223) for automatic mode or air
volume buttons
orQ
(page 222) or (
page 223) 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 222) or
(
page 223) 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 222) or (
page 223).
The indicator lamp on the button
comes on. Display4 (
page 222) or
(
page 223) 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 222) or (
page 223) 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.

230 Controls in detail4-zone automatic climate controlWindshield fogged on the outside
Switch the windshield wipers on
(page 58).
If the automatic mode of the climate con-
trol is switched off:

Turn air distribution controls1 and 7
to a or Y (
page 222) or
(
page 223).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 222).
MAX COOL
appears in the display4
(
page 222).
The air conditioning switches
automatically to the following functions:


maximum cooling


maximum blowing power


the air recirculation mode is switched
onDeactivating

Press buttone (
page 222) again.
MAX COOL
disappears in the display4
(
page 222).
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 222).

231 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 222) or
(
page 223).
The indicator lamp on the button
comes on.Deactivating

Press button, (
page 222) or
(
page 223) again.
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 233) 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)

233 Controls in detail
4-zone automatic climate control
Vehicles with panorama roof*
Convenience closing:
Press and hold button,
(page 222) or (
page 223) 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.
Convenience opening:

Press and hold button, until the
windows and the tilt/sliding panel are
opened or have reached the desired
position. The indicator lamp on the but-
ton goes out. The air recirculation
mode is deactivated.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.
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.