Page 567 of 595

566 Technical data
Fuels, coolants, lubricants
Anticorrosion/antifreeze
Your vehicle contains a number of
aluminum parts. The use of aluminum
components in motor vehicle engines
necessitates that anticorrosion/antifreeze
coolant used in such engines be
specifically formulated to protect the aluminum parts. Failure to use such
anticorrosion/antifreeze coolant will result
in a significantly shortened service life.
Therefore, the following product is strongly
recommended for use in your vehicle:
MB 325.0 Anticorrosion/Antifreeze agent.Before the start of the winter season (or
once a year in hot southern regions), you
should have the anticorrosion/antifreeze
concentration checked. The coolant is also
regularly checked each time you bring your
vehicle to an authorized Mercedes-Benz
Light Truck Center for service.
Anticorrosion/antifreeze quantity
Approximate freeze protection
Model-35°F (-37°C)-49°F (-45°C)
GL 320 CDI5.0 US qt (4.75 l)5.5 US qt (5.2 l)
GL 4505.3 US qt (5.0 l)5.8 US qt (5.5 l)
Page 571 of 595

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
Page 573 of 595

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
Page 580 of 595

579 Index
Instruments and controls see Cockpit
Interior lighting 151
Delayed shut-off 180
Interior rear view mirror 52
Antiglare positions 210
Auto-dimming mirrors* 211
Interior storage spaces see
Storage compartments
Intermittent wiping
Windshield wipers 64
J
Jack 496, 497
Lifting the vehicle 524
Jump starting 538
K
Key, Mechanical 500
Key, SmartKey 114
Batteries 122, 506
Battery check lamp 114
Checking battery condition 122
Closing the power windows
(Convenience closing feature) 252
Closing the tilt/sliding sunroof*
(Convenience closing feature) 252Closing, Power tailgate* 128
Factory setting 116
Locking/unlocking 40, 71, 114
Locking/unlocking, Global
setting 116
Loss of 122
Messages in the
multifunction display 480
Opening the power windows
(Summer opening feature) 251
Opening the tilt/sliding sunroof*
(Summer opening feature) 251
Remote control 114
Replacing batteries 506
Selective setting 116
Starter switch positions 42
Starting the engine 57
Turning off the engine 70
Key, SmartKey with KEYLESS-GO*
Batteries 122, 506
Battery check lamp 117
Checking battery condition 122
Closing the power windows
(Convenience closing feature) 252Closing the tilt/sliding sunroof*
(Convenience closing feature) 252
Closing/locking, Power
tailgate* 129
Factory setting 120
Important notes 119
Locking/unlocking 41, 71, 117
Locking/unlocking, Global
setting 120
Loss of 122
Messages in the
multifunction display 479, 480
Opening the power windows
(Summer opening feature) 251
Opening the tilt/sliding sunroof*
(Summer opening feature) 251
Remote control 117
Replacing batteries 506
Selective setting 121
Start/stop button 43
Starter switch positions 42, 43
Starting the engine 59
Turning off the engine 70
Page 581 of 595

580 Index
Kickdown 198
Kilopascal 416
L
Labels 550
Certification 550
Emission control information 551
Engine number 551
Paintwork code 550
Vacuum line routing diagram 551
Vehicle Identification Number
(VIN) 550
Lamp sensor see Light sensor
Lamps, exterior 509
Front 509
Light sensor, Messages in the
multifunction display 483
Messages in display 481
Messages in the multifunction
display 481, 483, 485
Rear 509
Switch 145Lamps, indicator and warning
ABS 27, 436
Adaptive Damping System
(ADS)* 281
Alarm system 112
Battery (SmartKey with
KEYLESS-GO*) 121
Battery (SmartKey) 116
Brakes 27, 437, 438
Center console 31, 32, 448
CHECK ENGINE 29, 439, 440
Differential locks* 207
Distance warning lamp* 265
Downhill Speed Regulation 276
Engine diagnostics 29, 439, 440
ESP® 27, 441, 442
Fog lamps, Front/rear 145
Front passenger front air bag off 31,
32, 80, 87, 450
Fuel reserve 29, 442
High beam headlamps 29
Instrument cluster 26, 28, 436, 437,
438, 439, 440, 441, 442, 443, 444,
445, 446
Off-road driving program 280
Parktronic* 292Preglow indicator, Diesel engine 29
Seat belt telltale 29, 91, 443
Seat belts 444
Seat heating* 140
Seat ventilation* 142
SRS 29, 74, 91, 445
Turn signals 27
Vehicle level control 283, 285
Language, Setting 174
LATCH-type child seat anchors see
Children in the vehicle
Layout of poly-V-belt drive (GL 450) 552
Layout of poly-V-belt drive
(GL 320 CDI) 552
Leather upholstery*, Cleaning and
care of 434
Lever for cruise control 257
License plate lamps 518
Messages in the
multifunction display 483
Replacing bulbs 509, 518
Light alloy wheels, Cleaning 432
Light sensor
Messages in the
multifunction display 483
Lighter see Cigarette lighter*
Page 584 of 595

583 Index
Off-road - 4-ETS 110
Off-road - ABS 104
Off-road - ESP® 108
Off-road driving
Checklist 359, 365
Crossing obstacles 363
Driving instructions for off-road
driving 357
Driving through water 362
Returning 365
Rules 358
Special driving features 358
Steep terrain 360
Off-road driving program (Vehicles without
enhanced off-road package*) 279
Oil level see Engine oil, Checking level
One-touch gearshifting 202
Operating safety 17
Operator’s Manual 10
Ornamental moldings, Cleaning 429
Outside temperature see Displays
Overdue maintenance service term 423
Overhead control panel 34
Oxidation catalyst (diesel engine) 373P
Paintwork code 550
Paintwork, Cleaning 426
Panic alarm 102
Panorama roof, Rear 214
Parcel net
Front passenger footwell 320
Front seat backrests 320
Parking 68, 352
On hills 68
Over things that burn, Potential
consequences 68, 373
Parking brake 60, 68
Lamps, Indicator and warning 437
Messages in the
multifunction display 471
Releasing 61
Parking lamps 509
Messages in the
multifunction display 482
Replacing bulbs 513
Parking position*
Exterior rear view mirrors 185, 211Parktronic* 31, 32, 290
Cleaning system sensors 430
Minimum distance 292
Range 291
Switching on/off 293
System malfunction 294
System sensors 291
System sensors, Cleaning 430
Warning indicators 25, 292
Parts service 548
PASS AIR BAG OFF indicator lamp see
Front passenger front air bag off
indicator lamp
Passenger compartment 371
Fuse box 546
Interior lighting 151
Interior rear view mirror 34
Parcel net in front passenger
footwell 320
Passenger safety see Occupant safety
Pedals 349
Phone see Telephone*