2006 MERCEDES-BENZ ML500 Owner's Manual

224 Controls in detail3-zone automatic climate control*Activating
Press button: (
page 218).
The indicator lamp on the button:
comes on.
iPress and hold button: for approx.
two seconds. The side windows and
tilt/sliding sunroof* will close. You can
release button: once the closing
procedure has begun. The windows
and tilt/sliding sunroof* continue clos-
ing until they are fully closed.
Warning!
G
Never operate the side windows and
tilt/sliding sunroof* if there is the possibility
of anyone being harmed by the opening or
closing procedure.
In the event that the closing procedure
causes potential danger, the closing of the
side 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 tilt/sliding sunroof* switch in
the overhead control panel in any direction.
The closing of the side windows and the
tilt/sliding sunroof* can be reversed by
again pressing and holding the :button.
iThe air recirculation mode is activated
automatically at high outside tempera-
tures.
If you have turned off the air condition-
ing (
page 225) or the outside
temperature is below 41°F (5°C), the
air recirculation mode will not switch
on automatically.
iTo achieve the fastest possible cooling
of the interior, the automatic climate
control automatically switches to air
recirculation. The indicator lamp in the
button: is not illuminated when
the system automatically switches to
air recirculation.

225 Controls in detail
3-zone automatic climate control*
Deactivating
Press button: (
page 218).
The indicator lamp on button:
goes out.
At outside temperatures above 79°F
(26°C) the system will not automatically
switch back to outside air. A quantity of
outside air is added after approximately
30 minutes.
Air 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 than 41°F (5° C) and helps prevent
window fogging.
iPress and hold button: for approx.
two seconds. You can release
button: once the opening proce-
dure has begun. The windows and
tilt/sliding sunroof* continue opening
until they have reached their previous
position.
A window or tilt/sliding sunroof* will
only return to its previous position if it
has not been moved to another posi-
tion using the respective window
switch or tilt/sliding sunroof* switch
after it was closed with button:. A
window or tilt/sliding sunroof* that
was moved will remain in its current po-
sition if button: is used to re-open
the remaining windows or tilt/sliding
sunroof*.
iThe air recirculation mode is
deactivated automatically

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


after five minutes if the air condi-
tioning and air-drying is turned off


after 30 minutes if the outside
temperature is above
approximately 41°F (5°C)
iCondensation may drip out from under-
neath the vehicle. This is normal and
not an indication of a malfunction.Warning!
G
If you turn off the cooling function, the inte-
rior air is not dried. The windows can fog up
more quickly. Window fogging may impair
visibility and endanger you and others.

226 Controls in detail3-zone automatic climate control*Deactivating
It is possible to deactivate the air condi-
tioning (cooling) function of the automatic
climate control system. The air in the vehi-
cle will then no longer be cooled or dehu-
midified.
Press button2 (
page 218).
The indicator lamp on button2
goes out.
The cooling function switches off after
a short delay.Activating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.

Press button2 again.
The indicator lamp on button2
comes on.
The air conditioning system uses the refrig-
erant R-134a. 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.
!If the air conditioning cannot be turned
on again, this indicates that the air
conditioning is losing refrigerant. The
compressor has turned itself off.
Have the air conditioning checked at
the nearest authorized Mercedes-Benz
Light Truck Center.
iHow long the system will provide heat-
ing depends on the coolant tempera-
ture and the battery voltage.
Regardless of the temperature and air
volume set on the climate control panel
an interior temperature is aimed at by
72°F (22°C) and the blower runs for
the protection of the battery on low
stage.

227 Controls in detail
3-zone automatic climate control*
Activating
Turn the SmartKey in the starter switch
to position0 or1 (
page 34), or re-
move it from the starter switch.

Press buttonT (
page 218).
The indicator lamp on buttonT
comes on.
Deactivating

Press buttonT.
The indicator lamp on buttonT
goes out.
Rear air conditioning1Left rear center air vent, adjustable
2Right rear center air vent, adjustable
3Temperature control
4Air distribution and air volume
(automatic, manual)
5Air distribution (directs air through
both center air vents)
6Air distribution (directs air through the
footwells and side air vents)
7Rear air conditioning on/off
8Decrease air volume
9Increase air volume
Activating rear air conditioning

Press buttonU.
The indicator lamp on buttonU
comes on. The temperature, air volume
and air distribution are adjusted
automatically.
iThe 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

228 Controls in detail3-zone automatic climate control*Deactivating rear air conditioning
For an improved cooling or heating output
in the front passenger compartment, the
rear passenger compartment can be
switched off.
For information on switching on and off the
rear air conditioning from the climate con-
trol panel in the front, see “Rear air condi-
tioning” (
page 218).

Press button´.
The indicator lamp on button´
goes out.
The cooling function switches off after
a short delay.Adjusting air distribution
Use the air distribution controls5 or6
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 con-
trol.
The indicator lamp in the Ubutton
goes out.Adjusting automatically

Press buttonU4.
The indicator lamp in the Ubutton
illuminates. The air distribution is ad-
justed automatically.
Setting the temperature
Use temperature control3 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).
Symbol
Function
Z
Directs air to the center air
vents
Y
Directs air to the footwells and
the side air vents
iThe rear air conditioning will not cool
the air when A/C mode has been
selected on the front control panel.

229 Controls in detail
3-zone automatic climate control*
Increasing/decreasing the temperature
Turn the temperature control3 slight-
ly left or right until the desired temper-
ature is selected.
The rear air conditioning will corre-
spondingly adjust the interior air tem-
perature for the rear passenger
compartment.
Adjusting air volume

Press
to decrease orQ to in-
crease air volume to the desired level.

230 Controls in detailPower windowsOpening and closing the windows
The side windows are opened and closed
electrically. The switches for all of the side
windows are on the driver’s door. The
switches for the respective windows are
on the front passenger door and the rear
doors.
1Left rear window
2Left front window
3Right front window
4Right rear window
5Rear window override switch
(
page 89)
Warning!
G
When closing the windows, make sure that
there is no danger of anyone being harmed
by the closing procedure.
The closing of the door windows can be im-
mediately halted by releasing the switch or,
if switch was pulled past the resistance
point and released, by either pressing or
pulling the respective switch.
The door windows are equipped with the
express-close and automatic reversal
function. If the window encounters an ob-
struction that blocks its path in a circum-
stance where you pulled the switch past the
resistance point and released it to close the
window, the automatic reversal function will
stop the window and open it slightly.
If the window encounters an obstruction
that blocks its path in a circumstance where
you are closing the window by pulling and
holding the switch, by pressing and holding
button‹on the SmartKey, by pressing
and holding the lock button (vehicles with
KEYLESS-GO*) on a door handle, or by
pressing and holding button: on the
climate control panel, the automatic rever-
sal function will not operate.
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehi-
cle equipment can cause an accident
and/or serious personal injury.

231 Controls in detail
Power windows

Switch on the ignition (
page 34).
Opening the windows

Press switch1 to4 to the resistance
point.
The corresponding window will move
downwards until you release the
switch.Closing the windows

Pull switch1 to4 to the resistance
point.
The corresponding window will move
upwards until you release the switch.
iYou can also open or close the win-
dows using the SmartKey, see “Sum-
mer opening feature” (
page 233) and
see “Convenience closing feature”
(
page 234).
You can close and reopen the windows
using the air recirculation button:
in the control panel of the climate con-
trol (page 204) or (
page 218).
iOpening the windows from the rear is
not possible if you activate the override
switch (
page 89).
iWith the SmartKey in starter switch
position0 or removed from the starter
switch, the power windows can be op-
erated:

until you open the driver’s or front
passenger door


for at least five minutes.
Warning!
G
If you pull and hold the switch up when clos-
ing the window, and upward movement of
the window is blocked by some obstruction
including but not limited to arms, hands, fin-
gers, etc., the automatic reversal will not op-
erate.