2007 MERCEDES-BENZ GL320CDI pre safe

540 Practical hints
Towing the vehicle
Mercedes-Benz recommends that the
vehicle be transported with all wheels off
the ground using flatbed or appropriate
wheel lift/dolly equipment. This method is
preferable to other types of towing.If circumstances do not permit the recom-
mended towing methods, the vehicle may
be towed with all wheels on the ground
only so far as necessary to have the vehicle
moved to a safe location where the recom-
mended towing methods can be employed.
When towing the vehicle with all wheels on
the ground, the vehicle may be towed only
for distances up to 30 miles (50 km) and at
a speed not to exceed 30 mph (50 km/h).
!Do not tow-start the vehicle.
!Use flatbed or wheel lift/dolly equipment,
with the SmartKey in starter switch turned to
position0.
Do not tow with sling-type equipment. Towing
with sling-type equipment over bumpy roads will
damage radiator and supports.
To prevent damage during transport, do not tie
down vehicle by its chassis or suspension parts.
Use the towing eyes.
Switch off the ESP
® (page 107) and the
automatic central locking (
page 130).
!Do not tow with one axle raised. Doing so
could damage the transfer case, which is not
covered by the Mercedes-Benz Limited
Warranty.
All wheels must be on or off the ground. Observe
instructions for towing the vehicle with all
wheels on the ground.
Warning!G
If circumstances require towing the vehicle
with all wheels on the ground, always tow
with a tow bar if

the engine will not run

there is a malfunction in the brake
system

there is a malfunction in the power
supply or in the vehicle’s electrical
system
as that will be necessary to adequately
control the towed vehicle.
Prior to towing the vehicle with all wheels on
the ground, make sure the starter switch is
in position2 (
page 42).

554 Technical data
Rims and tires
!Only use tires which have been tested and
approved by Mercedes-Benz. Tires approved by
Mercedes-Benz are developed to provide best
possible performance in conjunction with the
driving safety systems on your vehicle such as
ABS or ESP
®. Tires specially developed for your
vehicle and tested and approved by
Mercedes-Benz can be identified by finding the
following on the tire’s sidewall:

MO = Mercedes-Benz Original equipment
tires
Using tires other than those approved by
Mercedes-Benz may result in damage that is not
covered by the Mercedes-Benz Limited
Warranty.
!Using tires other than those approved by
Mercedes-Benz can have detrimental effects,
such as

poor handling characteristics

increased noise

increased fuel consumption
Moreover, tires and rims not approved by
Mercedes-Benz may, under load, exhibit dimen-
sional variations and different tire deformation
characteristics that could cause them to come
into contact with the vehicle body or axle parts.
Damage to the tires or the vehicle may be the
result.
iFurther information on tires and rims is
available at any authorized Mercedes-Benz Light
Truck Center. A placard with the recommended
tire inflation pressure is located on the driver’s
door B-pillar (
page 550). Some vehicles may
have supplemental tire inflation pressure infor-
mation for driving at high speeds (
page 395)
or for vehicle loads less than the maximum
loaded vehicle condition (
page 395). If such
information is provided, it can be found on the
placard located on the inside of the fuel filler
flap.The tire inflation pressure should be checked
regularly and should only be adjusted on cold
tires. Follow tire manufacturer’s maintenance
recommendation included with vehicle.
iThe following pages also list the approved
wheel rim and tire sizes for equipping your
vehicles with winter tires. Winter tires are not
available as standard or optional factory equip-
ment, but can be purchased from an authorized
Mercedes-Benz Light Truck Center.
Depending on vehicle model and the standard or
optional factory-equipped wheel rim/tire
configuration on your vehicle (Appearance
Package, etc.), equipping your vehicle with win-
ter tires approved for your vehicle model may
also require the purchase of two or four wheel
rims of the recommended size for use with these
winter tires. See an authorized Mercedes-Benz
Light Truck Center for more information.

569 Index
A
ABS 103
Indicator lamp 436
Messages in the
multifunction display 453
Off-road - ABS 104
Accelerator position, automatic
transmission 198
Accessory weight 415
Accident 67
Active head restraint 92, 135, 504
Adaptive Damping System (ADS)* 280
Air bags 76
Children 77, 93
Front passenger front air bag off
indicator lamp 31, 32, 85
Front, Driver 79
Front, Passenger 79
Occupant Classification System*
(OCS) 81
Safety guidelines 78
Side impact (front and rear*) 80
Window curtain 80Air conditioning refrigerant 562
Air conditioning system see
Climate control or
Automatic climate control (3-zone)*
Air conditioning, Cooling 226, 241
Air distribution, Front 221, 236
Air distribution, Rear 229, 245
Air pressure see Tire inflation pressure
Air recirculation mode 224, 239
Air suspension package 280
Adaptive Damping System
(ADS)* 280
Messages in the
multifunction display 490
Vehicle level control 281
Air vents 229
Air vents*, Rear 246
Air vents, Front 222, 236
Air volume 222, 237
Alarm system see Anti-theft systems
Alignment bolt (vehicle tool kit) 496, 526
Anticorrosion/antifreeze 561, 566Antiglare, Interior rear view mirror 210
Antiglare, Rear view mirrors* 211
Antilock Brake System see ABS
Anti-theft systems 112
Anti-theft alarm system 111, 112
Immobilizer 111
Aquaplaning see Hydroplaning
Armrest storage compartments
Front 318
Ashtrays* 322
Aspect ratio 415
ATF 382
Attaching a trailer 368
Audio menu 166
CD operation 167
Radio operation 166
Satellite radio* operation
(USA only) 166
Auto-dimming*, Rear view mirrors 211
Automatic central locking,
Control system 183

576 Index
ETD 91, 445
Safety guidelines 78
Expanding cargo compartment 306
Exterior rear view mirrors 52, 211
Folding 212
Power folding* 211
Synchronizing 212
F
Fastening the seat belts 54
Filler neck, Engine oil 382
First aid kit 495
Flat tire 523
Lifting the vehicle 524
Lowering the vehicle 528
Minispare wheel 499
Mounting the spare wheel 524
Preparing the vehicle 524
Floormats* 326Fluids
Automatic transmission fluid 382,
560
Brake fluid 378, 561, 562
Capacities 560
Engine coolant 378, 382, 561, 565
Engine oil 381, 560, 562
Power steering fluid 561
Windshield washer and headlamp
cleaning system* 378, 567
Fog lamps 148
Corner-illuminating
front fog lamps* 150
Messages in the
multifunction display 481
Rear fog lamp 149
Replacing bulbs 514
4-ETS 109
Off-road - 4-ETS 110
Front air bags 79
Front defroster 223, 237
Front lamps see Headlamps
Front passenger front air bag 74, 79
Messages in the multifunction
display 463, 464, 465, 466Front passenger front air bag off indicator
lamp 31, 32, 85
Front seat heat restraints see
Head restraints
Front towing eye 542
Fuel 376, 561
Additives 564
Capacities, Fuel tank 561
Consumption statistics 187, 188
Filling the tank 375
Fuel filler flap and cap 375, 501
Fuel gauge 29
Fuel tank reserve warning lamp 29,
442
Premium unleaded gasoline 376,
561, 563
Requirements, Octane rating 563
Fuel cap
Messages in the
multifunction display 478

582 Index
Multifunction display messages 451
ABS 453
Air suspension 490
Air suspension package* 490
Brake fluid 472
Brake lamps 481
Brake pads 470
Check engine 472
Coolant 475
Cruise control 454
Distronic* 455
Doors 478
Downhill Speed Regulation 470
EBP 471
Engine coolant 473, 475
Engine oil 476
ESP® 441
Fog lamps, Front 481
Fog lamps, Rear 484
Front passenger front air bag 463,
464, 465, 466
Fuel cap 478
Gear selector lever 461
Headlamps 481, 483, 484, 486
Hood 478Key, SmartKey 480
Key, SmartKey with
KEYLESS-GO* 479, 480
Lamps 481, 483, 484, 486
Low tire pressure 467, 488, 489
Parking brake 461, 471
Parking lamps 482
Tele Aid 487
Telephone* 487
Turn signals 486
Vehicle battery 469
Windshield washer fluid 487
Multifunction steering wheel 30, 158
Button operation 158
N
Navigation system* 168
See separate COMAND System
operating instructions
Net, Cargo* 313
Net, Parcel 320
Neutral gear position, Automatic
transmission 192
New vehicle, Break-in period 348
Night security illumination 148, 179
Normal occupant weight 417
Number, Vehicle Identification (VIN) 550O
Occupant distribution 417
Occupant safety 74
Active head restraint 92
Air bags 76
Children and air bags 77, 93, 96
Children in the vehicle 93
Fastening the seat belt 54
Front passenger front air bag off
indicator lamp 82, 85, 86
Infant and child restraint systems 94
LATCH-type child seat anchors 97
OCS* 81
OCS*, Messages in the multifunction
display 463, 464, 465, 466
Seat belts 54, 78
OCS* 81
Self-test 86
Odometer 156, 157, 164

585 Index
Rear lamps see Tail lamps
Rear panorama roof, Sunshade 214
Rear seat head restraints see
Head restraints
Rear towing eye 542
Rear view camera* 295
Rear view mirrors see Mirrors
Rear window defroster 215
Rear window wiper/washer 65
Rear windows see Power windows
Rear wiper blade 521
Recommended tire inflation
pressure 417
Recovery services,
Stolen vehicle (Tele Aid) 339
Refrigerant, Air conditioning 562
Refueling 375
Regular checks 377
Reminder, Seat belt see Seat belts, Telltale
Remote control
SmartKey 114
SmartKey with KEYLESS-GO* 117
Remote door unlock, Tele Aid 338Replacing bulbs 508
Additional turn signals,
Exterior rear view mirrors 515
Backup lamps 508, 509, 515
Brake lamps 508, 509, 515
Corner-illuminating front fog
lamps* 508, 509, 514
Fog lamp, Rear 508, 509, 515
Fog lamps, Front 508, 509, 514
High beam headlamps 508, 509, 512
License plate lamps 508, 509, 518
Low beam headlamps 508, 509, 511
Parking/standing lamps 508, 509,
513, 515, 517
Side marker lamps, Front 508, 509,
511, 514
Side marker lamps, Rear 508, 509,
515, 517
Tail lamps 508, 509, 515, 517
Turn signal lamps, Front 508, 509,
513
Turn signal lamps, Rear 508, 509,
515, 517Reporting safety defects 19
Research Octane Number see RON
Reset button, In instrument cluster 171
Reset tool
Active head restraints,
Depository 504
Residual heat and ventilation 227, 242
Reverse gear position, Automatic
transmission 192
Rims 417, 554
Roadside Assistance 12
Roadside Assistance button see Tele Aid
RON 376, 563
Roof rails 297
Rubber parts, Cleaning 432
Run Flat Indicator (Canada only) 397
S
Safety
Driving safety systems 103
Occupant safety 74
Reporting safety defects 19
Safety belts see Seat belts
Satellite radio* 166
Seat belt force limiter 91

590 Index
Important notes, Tire inflation
pressure 395
Inflation pressure 378, 394, 396
Information placard 389
Inspection 386
Load rating 406, 407, 417
Loading Information 389
Loading terminology 415
Loading the vehicle 388
Low tire pressure telltale, Canada
only 27, 446
Maximum load 418
Messages in the
multifunction display 446
Ply composition and material
used 418
Problems under-/overinflation 405
Retreads 385
Rims and tires 554
Rotating 388
Run Flat Indicator (Canada only) 397
Service life 386
Sizes 406
Snow chains 421
Spare wheel 499, 524
Speed rating 354, 408, 418Storing 387
Temperature 395, 414
Terminology 415
TIN 410, 417
Tire Identification Number see TIN
Tire Pressure Monitoring System
(TPMS), (USA only) 399
TPMS malfunction telltale 446
Traction 354, 414, 418
Tread 418
Tread depth 387, 420
Treadwear indicators 418
Vehicle maximum load on 418
Wear pattern 419
Winter tires 420
Tongue Weight Rating see TWR
Tools 495
Top tether
Children in the vehicle 99
Towing
Trailer 200, 366, 369
Towing eye bolt 542
Towing the vehicle 542, 543
Tow-starting 538, 540Traction 414, 418
4-ETS, Driving safety systems 103,
109
Trailer
Attaching 368
Checking weights 367
Electrical connections 366
Hitch* 366
Loading 367
Towing 366, 369
Weights and ratings 366
Transfer case 203
LOW RANGE mode* 203
Switching LOW RANGE mode* 204
Transmission gear selector lever see Gear
selector lever
Transmission position indicator 157
Transmission positions 195
Transmission see Automatic transmission
Traveling abroad 372
Tread 418
Tread depth 387, 420
Treadwear indicators 418
Trip computer 187
Trip odometer, resetting 156

591 Index
Turn signal lamps
Cleaning lenses 429
Messages in the
multifunction display 486
Replacing bulbs 509
Turn signals 63
Additional in mirrors 509
Bulbs 509, 517
Cleaning lenses 429
Indicator lamps 27
Turning off the engine 70
TWR (Tongue Weight Rating) 418
U
Uniform Tire Quality Grading
Standards 418
Units, Settings
Speedometer 175
Temperature 175
Unleaded gasoline, Premium 561
Unlocking the vehicle see Key
Uphill driving
Cruise control 259
Upholstery
Cleaning and care of 434
Useful features 316V
Vacuum line routing diagram label 551
Vehicle
Battery 530
Break-in period 348
Care 425
Control system, Settings menu 170
Dimensions 558
Locking/unlocking 40, 68, 114
Locking/unlocking in an
emergency 500
Modifications and alterations,
Operating safety 17
Proper use of 17
Total load limit 418
Towing 540
Washing 425
Weights 559
Vehicle and trailer weights and
ratings 366
Vehicle care 425
Vehicle Identification Number see VIN
Vehicle jack 496, 497
Vehicle level control 281Vehicle level control (Vehicles with
enhanced Off-road Package*) 285
Vehicle level control*
Messages in the
multifunction display 490
Vehicle lighting 378
Vehicle loading
Basic cross bars* 297
Cargo compartment cover blind 312
Cargo net* 313
Cargo tie-down rings 304
Carriers* 297
Expanding cargo compartment 306
Hooks 306
Load limit 390
Loading instructions 303
Loading terminology 415
Parcel nets 320
Roof rails 297
Terminology 415
Vehicle maximum load on the tire 418
Vehicle Recovery services, Stolen
(Tele Aid) 339