2008 MERCEDES-BENZ GL550 rear window

216 Controls in detail
Climate control
1Temperature control, left
2Air distribution and air volume
(automatic, manual)
3Front defroster
4Increasing air volume
5Air distribution (directs air through
the windshield and side air vents)
6Rear climate control* on/off
Air supply for rear passenger
compartment on/off
:USA only
7Temperature control, right
8AC cooling on/off
Residual heat/ventilation
9Air distribution (directs air through
center and side air vents)
aAir distribution (directs air through
the footwells and side air vents)
bAir volume display
cDecreasing air volume
dRear window defroster
eAir recirculation
fInterior temperature sensor
gClimate control on/off
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218 Controls in detail
Climate control
Deactivating the climate control
system
Deactivating
Press button´ (page 216).
The indicator lamp on the button
comes on.Reactivating
Press buttonU (page 216).
Operating the climate control system
in automatic modeActivating
Press buttonU (page 216) 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 216) to separately adjust the
air temperature on each side of the
passenger compartment.
The interior air temperature is adjusted
automatically.
Deactivating
Press button
orQ
(
page 216).
The indicator lamp on buttonU
goes out. The automatic operation of
air volume switches off. The selected
blower speed is shown in the air
volume displayb (
page 216).
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.
iYou can also press button´
(
page 216) on the climate control panel.
If you press button| (
page 216) to
reactivate the climate control system, the
defrosting mode is activated.
iWhen 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 225).
iThe settings for the passenger side are also
used for the rear passenger compartment.
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230 Controls in detail
3-zone automatic climate control*
1Temperature control, left
2Air distribution and air volume
(automatic, manual)
3Air distribution, driver’s side
4Front defroster
5Increasing air volume
6Rear window defroster
7Air distribution, passenger side
8Rear automatic climate control
on/off
>USA only
™Canada only
9Temperature control, right
aAutomatic climate control on/off
bAir distribution, passenger side
cAir distribution, passenger side
dAC cooling on/off
Residual heat/ventilation
eDisplay
fDecreasing air volume
gAir recirculation
hAir distribution, driver’s side
jAir distribution, driver’s side
kInterior temperature sensor
lAdopting driver’s side settings for all
zones
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237 Controls in detail
3-zone automatic climate control*
Windshield fogged on the outside
Switch the windshield wipers on
(
page 63).
Press buttonU (page 230).
The indicator lamp on buttonU
goes out. Air volume and air
distribution are controlled separately
for each zone.
If the automatic air distribution and
air volume are switched off:
Press buttons8 andY
(
page 230).
Maximum cooling MAXCOOL
If the air distribution control as well as the
airflow volume control are set toU and
there is a high need for cooling, the
MAXCOOL function is activated.
“
MAXCOOL” appears in the front and rear
display.
This provides the fastest possible cooling
of the vehicle interior (when windows and
tilt/sliding sunroof* are closed).
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.
iKeep this setting selected only until the
windshield is clear again.
Warning!G
Fogged windows impair visibility,
endangering 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 win-
dow fogging persists, make sure the air
conditioning (
page 239) is activated, or
press button|.
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240 Controls in detail
3-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 button9 (page 230).
The indicator lamp on the button 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 button9 again.
The indicator lamp on the button
comes on.
The air conditioning uses the refrigerant
R-134a. This refrigerant is free of CFCs
which are harmful to the ozone layer.Using driver-side settings for all tem-
perature zones
You can use the settings of the driver’s
side, such as temperature, air volume and
air distribution, for all temperature zones.
These settings only need to be made once
and the automatic climate control system
will automatically regulate the settings for
all temperature zones quickly and comfort-
ably.Activating
Adjust the temperature, air volume and
air distribution (
page 230).
Press button; (page 230).
The indicator lamp on the button
comes on.
The driver-side settings are used for all
temperature zones.
Deactivating
Press button; (page 230) again.
The indicator lamp on the button goes
out.
!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.
iIf you manually set the temperature, air vol-
ume or air distribution for the passenger side or
the rear passenger compartment when the
MONO setting is active, the MONO setting will
be switched off.
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246 Controls in detail
Power windows
The door windows and the hinged quarter
windows* are opened and closed electri-
cally. The switches for all door windows
and the hinged quarter windows* are
located on the driver’s door control panel.
The switches for the respective door win-
dows are located on the front passenger
door and the rear doors. The hinged quar-
ter windows* can be operated from the
driver’s seat only.
Switch on the ignition (page 42).
Warning!G
When closing the windows, make sure that
there is no danger of anyone being harmed
by the closing procedure.
Activate the override switch (
page 98)
when children are riding in the back seats of
the vehicle. The children could otherwise in-
jure themselves, e.g. by becoming trapped
in the window opening.
The closing of a door window can be imme-
diately halted by releasing the switch or, if
switch was pulled past the resistance point
and released, by either pressing or pulling
the respective switch.
If a door window encounters an obstruction
that blocks its path in a circumstance where
you pulled the switch past the resistance
point and released it to close the door win-
dow, the automatic reversal function will
stop the window and open it slightly.
If a door window encounters an obstruction
that blocks its path in a circumstance where
you are closing a door window by pulling and
holding the switch, or by pressing and hold-
ing button‹on the SmartKey, by press-
ing and holding the lock button (vehicles
with KEYLESS-GO*) on a door handle, the
automatic reversal 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 childrenunattended in the vehicle, or with access to
an unlocked vehicle. A child’s unsupervised
access to a vehicle could result in an
accident and/or serious personal injury.
iYou can also open or close the windows
using the SmartKey, see “Summer opening fea-
ture” (
page 249) and see “Convenience clos-
ing feature” (
page 250).
Depending on the current position, the power
windows may also open or close when the air
recirculation button: on the control panel of
the climate control (
page 216) or automatic
climate control* (
page 230) is pressed and
held.
iAfter switching off the ignition (page 41)
or removing the SmartKey from the starter
switch, the windows can be operated

until you open the driver’s or front passenger
door

for at least 5 minutes if nor door was opened
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247 Controls in detail
Power windows
Door windows
1Left front door window
2Right front door window
3Right rear door window
4Left rear door windowOpening the door windows
Press switch1, 2, 3, or4
(
page 247) to the resistance point.
The corresponding door window moves
downwards until you release the
switch.
Closing the door windows
Pull switch1, 2, 3, or4
(
page 247) to the resistance point.
The corresponding door window moves
upwards until you release the switch.Fully opening the door windows
(Express-open)
Press switch1, 2, 3, or4
(
page 247) past the resistance point
and release.
The corresponding door window opens
completely.
Fully closing the door windows
(Express-close)
Pull switch1, 2, 3, or4
(
page 247) past the resistance point
and release.
The corresponding door window closes
completely.
Warning!G
If you pull and hold the switch up when clos-
ing the door window, and upward movement
of the door window is blocked by some ob-
struction including but not limited to arms,
hands, fingers, etc., the automatic reversal
will not operate.
Warning!G
Driver’s door only:
If within 5 seconds switch is again pulled
past the resistance point and released, the
automatic reversal will not function.
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310 Controls in detail
Loading
Cargo compartment cover blind
The cargo compartment cover blind can be
installed behind the third-row seats or the
second-row seats.
Blind installed behind third-row seats
1Handle
2MountRolling out blind
Pull blind on handle1 across the car-
go compartment.
Guide blind into mounts2 and re-
lease.
Rolling up blind
Disengage blind and guide retraction
by its handle1.Installing blind
Cover from the mounts behind second-row
seats
3Cover
Press on cover3 at its upper edge as
indicated by arrow.
!With the cargo compartment cover blind in-
stalled, do not pile luggage higher than the lower
edges of the rear side windows.
iBefore installing cargo compartment cover
blind behind the second-row seats, fold the
third-row seats forward (
page 305).
iBefore installing cargo compartment cover
blind behind the third-row seats, fold the left or
right third-row seat forward (
page 305). After-
wards, return the left or right third-row seat into
its original position.
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