2007 MERCEDES-BENZ ML320CDI climate control

217 Controls in detail
Climate control
Activating
Switch off the ignition (
page 40).

Press button9 (
page 208).
The indicator lamp on the button
comes on.
Deactivating

Press button9 (
page 208).
The indicator lamp on the button goes
out.
Rear climate control*
The control panel for the rear climate
control is only available if your vehicle is
equipped with seat heating* for the rear
seats.
The control panel is located on the rear of
the front center console.Rear climate control panel
i
The residual heat is automatically turned off:


when the ignition is switched on


after about 30 minutes


if the coolant temperature is too low


if the battery voltage drops
1
Left rear center air vent, adjustable
2
Right rear center air vent, adjustable
3
Rear climate control on
(automatic mode)
4
Air distribution (directs air through
the center air vents)
5
Air distribution (directs air through
the footwells and side air vents)
6
Rear air conditioning off

218 Controls in detailClimate controlActivating rear climate control
Press buttonU.
The indicator lamp on the button
comes on. The air volume and air distri-
bution are adjusted automatically.Deactivating rear climate control

Press button´.
The indicator lamp on the button
comes on.
The cooling function switches off after
a short delay.Operating from the front
Deactivating

Press button: on the front climate
control panel (
page 208).
The indicator lamp on the button
comes on.
Reactivating

Press button: on the front climate
control panel (
page 208).
The indicator lamp on the button goes
out. The rear climate control is adjust-
ed automatically.
i
The climate control must be switched on
(
page 218).
i
The temperature is adjusted according to
the settings for the front passenger side made
on the front climate control panel (
page 211).
i
Switch off the rear climate control for im-
proved cooling or heating output in the front pas-
senger compartment.
You can also switch off the rear climate control
from the front passenger compartment
(
page 218).

219 Controls in detail
Climate control
Adjusting air distribution
Use the air distribution controls4 or5
to adjust the air distribution for the rear
passenger compartment.
The following symbols are found on the
controls:
Adjusting manually
Press the desired air distribution
control4 or5.
The indicator lamp in the Ubutton
goes out.Adjusting automatically

Press buttonU (
page 217).
The indicator lamp on the button
comes on. The air distribution is adjust-
ed automatically.
Adjusting air volume
The air volume for the rear zone corre-
sponds to the air volume settings for the
front passenger side. You can switch off
the air supply for the rear zone.
You can switch off the supplied amount of
air volume.

Press button´ (
page 217).
The indicator lamp on the button
comes on.
Symbol
Function
Z
Directs air to the center air
vents
Y
Directs air to the footwells and
the side air vents

220 Controls in detail3-zone automatic climate control*

221 Controls in detail
3-zone automatic climate control*
1
Driver’s door air vent, fixed
2
Left side air vent, adjustable
3
Thumbwheel for air volume control
for left side and door air vent
4
Thumbwheel for air volume control
for left center air vent
5
Left center air vent, adjustable
6
Right center air vent, adjustable
7
Thumbwheel for air volume control
for right center air vent
8
Thumbwheel for air volume control
for right side and door air vent
9
Right side air vent, adjustable
a
Front passenger door air vent, fixed
b
Automatic climate control panel
i
For draft-free ventilation, move the sliders
for center air vents and side air vents to the
middle position.

222 Controls in detail3-zone automatic climate control*
1
Temperature control, left
2
Air distribution and air volume
(automatic, manual)
3
Air distribution, driver’s side
4
Front defroster
0USA only
PCanada only
5
Increasing air volume
6
Rear window defroster
1USA only
FCanada only
7
Air distribution, passenger side
8
Rear automatic climate control
on/off
>USA only
™Canada only
9
Temperature control, right
a
Automatic climate control on/off
b
Air distribution, passenger side
c
Air distribution, passenger side
d
AC cooling on/off
Residual heat/ventilation
e
Display
f
Decreasing air volume
g
Air recirculation
h
Air distribution, driver’s side
j
Air distribution, driver’s side
k
Interior temperature sensor
l
Adopting driver’s side settings for all
zones

223 Controls in detail
3-zone automatic climate control*
The automatic climate control is a 3-zone
intelligent automatic climate control sys-
tem. Your vehicle interior is divided into
3 zones.With the help of a sun sensor, the automat-
ic 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 operation-
al whenever the engine is running. It cools
the vehicle’s interior according to the an-
gle and intensity of the sun’s rays, the out-
side temperature and the selected
temperature. You can operate the auto-
matic climate control in either the auto-
matic or manual mode.
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 is deactivated
(
page 222).
Warning!
G
When operating the automatic climate con-
trol, the air that enters the passenger com-
partment through the air vents can be very
hot or very cold (depending on the set tem-
perature). This may cause burns or frostbite
to unprotected skin in the immediate area of
the air vents.
Always keep sufficient distance between un-
protected parts of the body and the air
vents. If necessary, use the air distribution
controls (
page 222) to direct the air to air
vents in the vehicle interior that are not in
the immediate area of unprotected skin.

224 Controls in detail3-zone automatic climate control*
Deactivating the automatic climate control system
Deactivating
Press button´ (
page 222) until
the displaye (
page 222) is cleared.
The indicator lamp on the button
comes on.Reactivating

Press buttonU(
page 222).
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 automatic climate con-
trol 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.
Warning!
G
When the automatic climate control system
is switched off, the outside air supply and
circulation are also switched off. Only
choose this settings for a short time. Other-
wise the windows could fog up, impairing
visibility and endangering you and others.
i
You can also press button´
(
page 222) on the automatic climate control
panel.
If you press button0 (
page 222) to reacti-
vate the automatic climate control system, the
defrosting mode is activated.