2007 MERCEDES-BENZ ML320CDI cooling

Contents
Control system .................................. 147
Multifunction display .................... 147
Multifunction steering wheel ........ 148
Menus .......................................... 150
Standard display menu ................ 154
AMG menu ................................... 156
Off-road mode menu .................... 159
Audio menu .................................. 159
Navi* menu .................................. 161
AIRMATIC*/Compass menu ........ 162
DISTRONIC* menu ....................... 162
Vehicle status message
memory menu .............................. 163
Settings menu .............................. 164
Vehicle configuration ................... 178
Trip computer menu..................... 180
Tel menu* .................................... 182
Automatic transmission ..................... 185
Gear selector lever ....................... 185
Shifting procedure ....................... 188
Transmission positions................. 189
Driving tips ................................... 191
Gear ranges ................................. 193
Steering wheel gearshift control .. 194
Shift program (ML 63 AMG only).. 195Emergency operation
(Limp-Home Mode) ....................... 198
Transfer case ...................................... 199
Good visibility ..................................... 200
Headlamp cleaning system* ......... 200
Rear view mirrors .......................... 200
Power folding exterior
rear view mirrors* ......................... 202
Sun visors ..................................... 203
Rear window defroster .................. 205
Climate control ................................... 206
Deactivating the
climate control system ................. 210
Operating the climate control
system in automatic mode............ 210
Setting the temperature................ 211
Adjusting air distribution............... 212
Adjusting air volume ..................... 212
Front defroster.............................. 213
Air recirculation mode .................. 214
Air conditioning............................. 216
Residual heat and ventilation ........ 216
Rear climate control*.................... 2173-zone automatic climate control* ..... 220
Deactivating the
automatic climate
control system .............................. 224
Operating the automatic
climate control system in
automatic mode............................ 225
Setting the temperature ............... 225
Adjusting air distribution .............. 226
Adjusting air volume ..................... 227
Front defroster ............................. 227
Maximum cooling MAX COOL ....... 228
Air recirculation mode .................. 228
Air conditioning ............................ 230
Using driver-side settings
for all temperature zones.............. 231
Residual heat and ventilation........ 232
Rear automatic climate control..... 232
Power windows .................................. 236
Opening and closing ..................... 236
Synchronizing the door windows .. 238
Summer opening feature .............. 239
Convenience closing feature......... 239
Power tilt/sliding sunroof* ................ 241
Opening and closing ..................... 241
Synchronizing ............................... 244

63 Getting started
Driving
Deactivating intermittent wipe
Turn rear window wiper switch1 to
position4 (
page 62).
Indicator6 for the rear window wiper
is cleared from the lower multifunction
display, indicating that the rear window
wiper is deactivated.
Wiping with windshield washer fluid

Turn and hold rear window wiper
switch1 in position2 or5
(page 62) until the rear window is
clean.
The rear window wiper operates with
washer fluid.
For information on filling up the washer
reservoir, see “Windshield/rear window
washer system and headlamp cleaning
system*” (
page 363).
Problems while driving
The engine runs erratically and misfires

An ignition cable may be damaged
(gasoline engine only).


The engine electronics may not be
operating properly.


Unburned gasoline may have entered
the catalytic converter and damaged it
(gasoline engine only).

Give very little gas.

Have the problem repaired by an
authorized Mercedes-Benz Light Truck
Center as soon as possible.The coolant temperature is above
248°F (120°C)
The coolant is too hot and is no longer
cooling the engine.

Stop the vehicle in a safe location as
soon as possible and turn off the en-
gine. Allow engine and coolant to cool
off.

Check the coolant level and add cool-
ant if necessary (
page 362).

208 Controls in detailClimate control
1
Temperature control, left
2
Air distribution and air volume
(automatic, manual)
3
Front defroster
0USA only
PCanada only
4
Increasing air volume
5
Air distribution (directs air through
the windshield and side air vents)
6
Rear climate control* on/off
Air supply for rear passenger
compartment on/off
:USA only
7
Temperature control, right
8
AC cooling on/off
Residual heat/ventilation
9
Air distribution (directs air through
center and side air vents)
a
Air distribution (directs air through
the footwells and side air vents)
b
Air volume display
c
Decreasing air volume
d
Rear window defroster
1USA only
FCanada only
e
Air recirculation
f
Interior temperature sensor
g
Climate control on/off

209 Controls in detail
Climate control
The climate control is operational whenev-
er 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 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 216).
Warning!
G
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 unpro-
tected 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 208) to direct the air to air
vents in the vehicle interior that are not in
the immediate area of unprotected skin.
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.

210 Controls in detailClimate controlDeactivating the climate control system
Deactivating
Press button´ (
page 208).
The indicator lamp on the button
comes on.Reactivating

Press buttonU (
page 208).
Operating the climate control system
in automatic modeActivating

Press buttonU (
page 208) while
the engine is running.
The indicator lamp on the button
comes on. The air volume and air distri-
bution are adjusted automatically.

Use temperature controls1 and7
(page 208) to separately adjust the
air temperature on each side of the
passenger compartment.
The interior air temperature is adjusted
automatically.
Warning!
G
When the climate control system is
switched off, the outside air supply and cir-
culation are also switched off. Only choose
this settings for a short time. Otherwise the
windows could fog up, impairing visibility
and endangering you and others.
i
You can also press button´
(
page 208) on the climate control panel.
If you press button0 (
page 208) to
reactivate the climate control system, the
defrosting mode is activated.
i
When operating the climate control system
in automatic mode, you will only rarely need to
adjust the temperature, air volume and air distri-
bution.
In automatic mode, cooling with dehumidify is
switched on. This function can be switched off if
necessary (
page 216).
i
The settings for the passenger side are also
used for the rear passenger compartment.

216 Controls in detailClimate controlAir 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 dehumidi-
fies the interior air at outside temperatures
above 41°F (5° C) and helps prevent
window fogging.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 button9 (
page 208).
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 button9 (
page 208) 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.
Residual heat and ventilation
With the engine switched off, it is possible
to continue to heat or ventilate the interior
for up to 30 minutes. This feature makes
use of the residual heat produced by the
engine.
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
interior air is not dried. The windows can fog
up more quickly. Window fogging may
impair visibility and endanger you and
others.
!
If the air conditioning cannot be turned on
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 Light Truck Center.
i
How long the system will provide heating
depends on


the coolant temperature


the battery voltage
Regardless of the temperature and air volume
set on the climate control panel, the interior tem-
perature is set to 72°F (22°C) and the blower
runs on low speed to protect the vehicle battery.

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).

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