2007 MERCEDES-BENZ GL450 climate settings

238 Controls in detail
3-zone automatic climate control*
Press button
to decrease or
buttonQ to increase air volume
(
page 232) to the desired level.
The air volume decreases/increases to
the next lower/higher blower speed
and heating switches to the tempera-
ture that was set before the front de-
froster was switched on.
The indicator lamp on button0 or,
depending on vehicle production date,
button| goes out. The indicator
lamp on button9 comes on.
or
Turn temperature control1
and/or7 (
page 232) slightly in any
direction.
Heating switches to the temperature
that was set before the front defroster
was switched on.
The indicator lamp on button0 or,
depending on vehicle production date,
button| goes out. The indicator
lamp on button9 comes on.Deactivating
Press button0 or, depending on
vehicle production date, button|
(
page 232).
The indicator lamp on the button goes
out. Defrosting is turned off.
The previous settings are once again in
effect.Windshield fogged on the outside
Switch the windshield wipers on
(
page 64).
Press buttonU (page 232).
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 232).
iThe air conditioning compressor remains on
even if the indicator lamp in button0 or, de-
pending on vehicle production date, button|
goes out. This helps to prevent the windshield
from fogging.
iTo switch off, you can also press
button´ orU (
page 232).
iKeep this setting selected only until the
windshield is clear again.

242 Controls in detail
3-zone automatic climate control*
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 232).
Press button; (page 232).
The indicator lamp on the button
comes on.
The driver-side settings are used for all
temperature zones.
Deactivating
Press button; (page 232) again.
The indicator lamp on the button goes
out.
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
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.
iHow long the system will provide heating
depends on

the coolant temperature

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

243 Controls in detail
3-zone automatic climate control*
Activating
Switch off the ignition (page 41).
Press button9 (page 232).
The indicator lamp on the button
comes on.
Deactivating
Press button9.
The indicator lamp on the button goes
out.
Rear automatic climate control
The control panel is located at the rear of
the front center console.
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
1Left 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
the center air vents)
6Air distribution (directs air through
the footwells and side air vents)
7Rear automatic climate control
on/off
8Decreasing air volume
9Indicator lamps for air volume
settings
aIncreasing air volume

246 Controls in detail
3-zone automatic climate control*
Increasing the temperature
Turn temperature control3
(
page 243) slightly clockwise.
The rear automatic climate control will
correspondingly adjust the interior air
temperature for the rear passenger
compartment.
Decreasing the temperature
Turn temperature control3
(
page 243) slightly counterclock-
wise.
The rear automatic climate control will
correspondingly adjust the interior air
temperature for the rear passenger
compartment.Adjusting air volume
Adjusting manually
Five blower speeds are available.
Press button
to decrease or
buttonQ to increase air volume to
the desired level.
The indicator lamp on the buttonU
goes out. The selected blower speed is
shown by the indicator lamps for air
volume settings9 (
page 243).
Adjusting automatically
Press buttonU.
The indicator lamp on the button
comes on. The air volume is adjusted
automatically.Air vents in the roof liner over the
second-row seats*
1Thumbwheel for air volume control
2Air vent, adjustable
Adjusting air volume
Turn thumbwheel1 d o w n t o d e c r e a s e
the air volume.
or
Turn thumbwheel1 u p t o i n c r e a s e t h e
air volume.

570 Index
Automatic climate control (3-zone)* 230
Air conditioning refrigerant 561
Air conditioning, Cooling 241
Air distribution, Front 236
Air distribution, Rear 245
Air recirculation mode 239
Air vents*, second-row seats 246
Air vents*, third-row seats 247
Air vents, Front 236
Air volume 237
Control panel, Front 232
Control panel, Rear 243
Deactivating system 234
Defogging 237
Defrosting 237
Maximum cooling, MAXCOOL 239
Rear passenger compartment 243
Rear window defroster 215
Residual engine heat (REST) 242
Using driver-side settings for
all temperature zones 242Automatic headlamp mode 146
Automatic lighting control,
Interior lighting 152
Automatic locking when driving 130
Automatic transmission 58
Accelerator position 198
Emergency operation
(limp-home mode) 202
Gear ranges 200
Gear selector lever 58, 192
Gear selector lever position 195
Gear shifting malfunctions 202
Hill start assist system 199
Kickdown 198
Shifting procedure 195
Starting the engine 57
Steering wheel gearshift control 201
Towing a trailer 200
Transmission fluid level 382
Transmission positions 196
Automatic Transmission Fluid see ATFB
BabySmartTM
Air bag deactivation system 87, 450
Self-test 87
Backrest
Seat 46
Seat, Lumbar support 139
Seat, Multicontour* 140
Backup lamps
Messages in the
multifunction display 481
Replacing bulbs 515
Bar 416
BAS 105
Lamps in instrument cluster 436
Messages in the
multifunction display 453
Basic cross bars* 297
Batteries, SmartKey
Check lamp 114, 117
Checking battery condition 122
Messages in the
multifunction display 469
Replacing 506

572 Index
Children in the vehicle 93
Air bags 77, 93
Blocking rear door window
operation 100
Indicator lamp, Front passenger front
air bag 85, 87, 450
Infant and child restraint systems 88,
94
LATCH-type child seat anchors 97
Occupant Classification System*
(OCS) 81
Cigarette lighter* 324
Climate control 216
Air conditioning refrigerant 561
Air conditioning, Cooling 226, 227
Air distribution, Front 221
Air distribution, rear 229
Air recirculation mode 224
Air vents*, second-row seats 222
Air vents, Front 222
Air volume 222
Control panel*, Rear 228
Control panel, Front 218
Deactivating system 220
Defogging 224
Defrosting 223Rear window defroster 215
Residual engine heat (REST) 227
Clock 27, 176
Setting time 176
Cloth upholstery, Cleaning and
care of 434
Cockpit 24
Cockpit Management and Data System
see COMAND System
Cold tire inflation pressure 416
Collapsible wheel chock 498
COMAND System see separate operating
instructions
Combination switch 63, 65, 149
Compass 345
Adjustment 181
Calibration 182
Calling up the compass 345
Control and operation of radio
transmitters 372
Control system 157
Multifunction display 157
Multifunction steering wheel 158
Resetting to factory default 171Control system menus 157
Audio 166
DISTRONIC* 169
NAV* 168
Off-road 168
Settings 170
Standard display 164
TEL* 189
Trip computer 187
Vehicle configuration 185
Vehicle status message memory 169
Control system submenus 161, 163, 173
Comfort* 184
Instrument cluster 174, 175
Lighting 178
Time/Date 176
Vehicle 181
Coolant 382, 565
Anticorrosion/antifreeze mixing ratio
and quantity 566
Capacities 560
Checking coolant level 377, 382
Messages in the
multifunction display 473, 475
Temperature 374
Temperature display 164

581 Index
Lighting, Exterior and interior 145
Limp-Home Mode 202, 439, 440
Loading see Vehicle loading
Locator lighting 148, 179
Lock buttons, KEYLESS-GO*
Outside door handle 72
Locking the vehicle see Key
Loss of keys, Mechanical key 122
Loss of keys, SmartKey 122
Loss of keys, SmartKey with
KEYLESS-GO* 122
Loss of Service and Warranty Information
Booklet 549
Low beam headlamps
Messages in the
multifunction display 483
Replacing bulbs 509
Switching on 62, 145
LOW RANGE mode* 203
Messages in the
multifunction display 493, 494
Lubricants 560
Lumbar support 139M
Main dimensions 558
Maintenance 12, 422
Calling up service indicator
display 424
Clearing service indicator
message 423
Maintenance System 422
Resetting service indicator 424
Service indicator message 422
Service term exceeded 423
Maintenance System 422
Manual headlamp mode see Headlamps
Maximum cooling, MAXCOOL* see
Automatic climate control
(3-zone)* 239
Maximum load rating, Tires 417
Maximum loaded vehicle weight,
Tires 417
MB Tex upholstery, Cleaning and
care of 434
Mechanical key 500Memory function* see Seats
Menus see Control system menus
Messages in display see Multifunction
display messages
Microphone, Hands-free 34
Minispare wheel see Spare wheel
Mirrors
Adjusting 52
Auto-dimming rear view
mirrors* 211
Exterior rear view mirror 52
Interior rear view mirror 52, 210
MON 376, 563
Multicontour seat* 140
Multifunction display 157
Changing settings see Control system
menus and Control system sub-
menus
Displaying current gear range 200
Selecting display 175
Selecting language 174