2006 MERCEDES-BENZ G500 Owner's Manual

168 Controls in detail
Climate control

169 Controls in detail
Climate control
Climate control panel
1Windshield defroster air vents
2Center air vent, adjustable
3Thumbwheel for center air vent
4Side air vent, adjustable
5Side defroster air vent, fixed
6Thumbwheel for side air vent
7Footwell air vents
8Climate control panel
i
For draft-free ventilation, move the
sliders for the center air vents to the
middle position.
1Air volume
2Temperature control, left
(driver side)
3Temperature control, right
(passenger side)
4Air distribution control
5Rear window defroster (page 166)
6AC cooling on / off (ACOFF)
Residual engine heat utilization
(REST)
7Air distribution and air volume
(automatic mode)
8Air recirculation
9Defrosting

170 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 au-
tomatic or manual mode. The system cools
or heats the interior depending on the se-
lected interior temperature and the cur-
rent 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 AC
OFF mode is selected
(
page 174).
Setting the temperature
Use temperature controls2 and3 to
separately adjust the air temperature on
each side of the passenger compartment.
You should raise or lower the temperature
setting in small increments, preferably
starting at 72°F (22°C).
Warning!G
When operating the climate control, the air
that enters the passenger compartment
through the air vents in the footwell can be
very hot or very cold (depending on the set
temperature). This may cause burns or frost-
bite on unprotected skin in the immediate
area of the air vents. Always keep sufficient
distance between unprotected parts of the
body and the footwell air vents. If necessary,
change the air flow using the air distribution
controls to direct the air away from the foot-
well air vents (
page 171).
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
If the vehicle interior is hot, ventilate
the interior before driving off.
Keep the air intake grille in front of the
windshield free of snow and debris.
i
When operating the climate control
system in automatic mode, you will
only rarely need to adjust the tempera-
ture, air volume, and air distribution.

171 Controls in detail
Climate control
Increasing
Turn the temperature control a few de-
grees to the right.
The climate control system will corre-
spondingly adjust the interior air tem-
perature.
Decreasing
Turn the temperature control a few de-
grees to the left.
The climate control system will corre-
spondingly adjust the interior air tem-
perature.
Adjusting air distribution and volume
Use air distribution control4
(
page 169) to adjust the air distribution.
The following symbols are found on the
controls:Adjusting manually
Press theU button.
The indicator lamp on the button goes
out.
Select any of the six air volume speeds
and the air distribution.
Adjusting automatically
Press theU button.
The indicator lamp on the button
comes on. Air distribution and volume
are adjusted automatically.
Windshield fogged on the outside
Switch the windshield wipers on.
Switch to manual mode.
Turn the air distribution control
toa orY.
SymbolFunction
aDirects air through the center,
side, and rear passenger com-
partment air vents
ZDirects air to the windows
XDirects air into the entire vehi-
cle interior
YDirects air to the footwells

172 Controls in detail
Climate control
Defrosting
Activating
Press button P.
The indicator lamp in the button illumi-
nates.
The climate control automatically
switches to the following functions:

maximum blower and heat output

air distribution to the windshield
and the side windows

rear ventilation is turned off
Deactivating
Press the P button.
The indicator lamp in the button goes
out. Defrosting is turned off.
Air recirculation
Switch to air recirculation mode to prevent
unpleasant odors from entering the vehicle
from the outside. This setting cuts off the
intake of outside air and recirculates the
air in the passenger compartment.
Activating
Press button O briefly.
The indicator lamp in the button illumi-
nates.Deactivating
Press button O briefly.
The indicator lamp in the button goes
out.
The air recirculation mode is deactivated
automatically:

after 30 minutes if the outside temper-
ature is above about 41°F (5°C)

after 5 minutes if the outside tempera-
ture is below about 41°F (5°C)

after 5 minutes if economy mode
ACOFF is selected
Warning!G
When the outside temperature is below
41°F (5°C), only switch to air recirculation
mode for short periods to prevent window
fogging.
i
The air recirculation mode is activated
automatically at high outside tempera-
tures.
If you have turned off the air condition-
er or the outside temperature is below
41°F (5°C), the air recirculation mode
will not switch on automatically.

173 Controls in detail
Climate control
Residual engine heat utilization
With the engine switched off, it is possible
to continue to heat or ventilate the interior
for a short while, depending on the temper-
ature setting of the climate control.
Air volume and distribution are controlled
automatically.
Activating
Turn the SmartKey in starter switch to
position1 or0 or remove it from the
starter switch.
Press button °.
The indicator lamp in the button comes
on.
Set the left and right temperature to
your personal requirements.Deactivating
Press button ° again to switch off.
The indicator lamp in the button goes
out.
The residual heat is automatically turned
off:

when the SmartKey in starter switch is
turned to position2

after about 30 minutes

if the battery voltage dropsDeactivating the climate control
system
Deactivating
Set the air volume control switch to
position0.
Reactivating
Set the air volume control switch to any
speed.

174 Controls in detail
Climate control
Air conditioning
The air conditioning is operational while
the engine is running and cools the interior
air to the temperature set by the operator.
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 button°.
The indicator lamp on the button°
comes on.Activating
Moist air can fog up the windows. You can
dehumidify the air with the air conditioner.
Press button° again.
The indicator lamp on the button°
goes out.
The air conditioner uses the refrigerant
R134a. This refrigerant is free of CFCs
which are harmful to the ozone layer.Rear passenger compartment
adjustable air vents
1Air volume control for center air vents
2Left center air vent, adjustable
3Right center air vent, adjustable
i
Condensation may drip out from under-
neath the vehicle. This is normal and
not an indication of a malfunction.
!
If the° button on the climate con-
trol panel starts to blink, this indicates
that the air conditioner is losing refrig-
erant. The compressor has turned itself
off. The air conditioner cannot be
turned on again.

Have the air conditioner checked at
the nearest authorized
Mercedes-Benz Light Truck Center.

175 Controls in detail
Power windows
Power windows
Opening and closing the windows
The side windows are opened and closed
electrically. Switches for operating all the
side windows are located on the driver’s
door. The switches for the respective win-
dows are located on the front passenger
and the rear doors.
1Switch for rear door window override
(
page 78)
2Left front window
3Right front window
4Right rear window
5Left rear window
Turn SmartKey in the starter switch to
position1 or2.Opening the windows
Press switch 2 to 5 to the resistance
point.
The corresponding window will move
downwards until you release the
switch.
Closing the windows
Pull on switch 2 to 5.
The corresponding window will move
upwards until you release the switch.
Fully opening windows (Express-open)
Press switch 2 to 5 past the
resistance point and release.
The corresponding window opens
completely.
Stopping windows
Press or pull respective switch again.
Warning!G
When closing the windows, make sure there
is no danger of anyone being harmed by the
closing procedure.
The closing procedure can be immediately
halted by releasing the switch or by releas-
ing button‹ on the SmartKey.
When leaving the vehicle, always remove the
SmartKey from starter switch, take it with
you, and lock the vehicle. Do not leave chil-
dren unattended in the vehicle, or with ac-
cess to an unlocked vehicle. Unsupervised
use of vehicle equipment can cause an acci-
dent and/or serious personal injury.