Page 553 of 601
552 Technical data
Layout of poly-V-belt drive
GL 320 CDI
1Coolant pump
2Idler pulley
3Automatic belt tensioner
4Power steering pump
5Air conditioning compressor
6Crankshaft
7Idler pulley
8Generator (alternator)GL 450, GL 550
1Idler pulley
2Idler pulley
3Automatic belt tensioner
4Power steering pump
5Air conditioning compressor
6Crankshaft
7Coolant pump
8Generator (alternator)
164.boo Seite 552 Freitag, 30. März 2007 12:54 12
Page 554 of 601

553 Technical data
Engine
Engine
ModelGL 320 CDI (164.8221)
1The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Light Truck Center for the corresponding data of all special bodies and special
equipment.
GL 450 (164.8711)
Engine642273
Mode of operationDiesel 4-stroke engine4-stroke engine, gasoline injection
No. of cylinders68
Bore3.27 in (83.00 mm)3.66 in (92.90 mm)
Stroke3.62 in (92.00 mm)3.38 in (86.00 mm)
Total piston displacement182 cu in (2987 cm3)285 cu in (4663 cm3)
Compression ratio17.7:110.7:1
Output acc. to SAE J 1349215 hp/4000 rpm
(160 kW/4000 rpm)335 hp/6000 rpm2
(250 kW/6000 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.
Maximum torque acc. to SAE J 1349400 lb-ft/1600 - 2400 rpm
(543 Nm/1600 - 2400 rpm)339 lb-ft/2700 - 5000 rpm
(460 Nm/2700 - 5000 rpm)
Maximum engine speed4500 rpm6500 rpm
Firing order1-4-2-5-3-61-5-4-2-6-3-7-8
Poly-V-belt2 035 mm2 404 mm
164.boo Seite 553 Freitag, 30. März 2007 12:54 12
Page 555 of 601
554 Technical data
Engine
ModelGL 550 (164.8861)
1All data preliminary. The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Light Truck Center for the corresponding data of all special
bodies and special equipment.
Engine273
Mode of operation4-stroke engine, gasoline injection
No. of cylinders8
Bore3.86 in (98.00 mm)
Stroke3.56 in (90.50 mm)
Total piston displacement333.2 cu in (5461 cm3)
Compression ratio10.7:1
Output acc. to SAE J 1349382 hp/6000 rpm2
(285 kW/6000 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.
Maximum torque acc. to SAE J 1349391 lb-ft/2800 - 4800 rpm
(530 Nm/2800 - 4800 rpm)
Maximum engine speed6500 rpm
Firing order1-5-4-2-6-3-7-8
Poly-V-belt2404 mm
164.boo Seite 554 Freitag, 30. März 2007 12:54 12
Page 578 of 601

577 Index
Emergency operation
Fuel filler flap 497
Locking/unlocking the vehicle 496,
497
Emergency operation
(Limp-Home Mode) 200
Emergency operations
Exit for third-row seats 132
Remote door unlock, Tele Aid 337
Tailgate, Opening from the inside
manually 122
Emergency Tensioning Device see ETD
Emergency, In case of
Battery, Jump starting 536
Engine shut-down 545
First aid kit 490
Flat tire 519
Fuses 543
Hazard warning flasher 149
Instrument cluster, Indicator
lamps 436, 437, 438, 439, 440,
441, 442, 443, 444, 446
Roadside Assistance 12, 335
Towing the vehicle 538Emission control 372
Information label 551
System warranties 10
Engine
Belt layout (GL 450, GL 550) 552
Belt layout (GL 320 CDI) 552
Break-in recommendations 380
Cleaning 427
Compartment 378
Emergency engine shut-down 545
Malfunction indicator lamp 29
Maximum engine speed 153, 553
Number 551
Starting 56
Starting with KEYLESS-GO* 57
Starting with the SmartKey 57
Tachometer 29, 153
Technical data 553
Turning off with KEYLESS-GO* 69
Turning off with the SmartKey 69Engine coolant see Coolant
Engine oil 380, 564
Adding 381, 564
Additives 564
Changing 381, 564
Checking level 380
Checking with the oil dipstick 380
Consumption 380
Filler neck 381
Recommended engine oils and oil
filters 564
Enhanced Off-road Package*
Vehicle level control 283
ESP
®27, 103
Four wheel electronic traction system
with ESP
®103
Messages in the multifunction
display 457, 458
Off-road-ESP
®106
Warning lamp 27, 441
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Page 579 of 601

578 Index
ETD 89, 446
Safety guidelines 78
Expanding cargo compartment 304
Exterior rear view mirrors 51, 208
Folding 210
Power folding* 209
Synchronizing 209
F
Fastening the seat belts 53
Filler neck, Engine oil 381
First aid kit 490
Flat tire 519
Lifting the vehicle 520
Lowering the vehicle 526
Minispare wheel 494
Mounting the spare wheel 520
Preparing the vehicle 520
Floormats 325Fluids
Automatic transmission fluid 381,
562
Brake fluid 377, 563, 564
Capacities 562
Engine coolant 377, 381, 563, 567
Engine oil 380, 562, 564
Power steering fluid 562
Windshield washer and headlamp
cleaning system* 377, 569
Fog lamps 146
Corner-illuminating front fog
lamps* 147
Messages in the multifunction
display 478
Rear fog lamp 146
Replacing bulbs 510
4-ETS 107
Off-road - 4-ETS 108
Front air bags 79
Front defroster 221, 235
Front lamps see Headlamps
Front passenger front air bag 74, 79
Messages in the multifunction
display 460, 461, 462, 463Front passenger front air bag off indicator
lamp 31, 32, 85
Front seat head restraints see
Head restraints
Front towing eye 540
Fuel 375, 563
Additives 566
Capacities, Fuel tank 563
Consumption statistics 184, 185
Filling the tank 374
Fuel filler flap and cap 374, 497
Fuel gauge 29
Fuel tank reserve warning lamp 29,
446
Premium unleaded gasoline 375,
563, 565
Requirements, Octane rating 565
Fuel cap
Messages in the multifunction
display 474
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Page 583 of 601

582 Index
Kickdown 196
Kilopascal 416
L
Labels 550
Certification 550
Emission control information 551
Engine number 551
Paintwork code 550
Vehicle Identification Number
(VIN) 550
Lamp sensor see Light sensor
Lamps, exterior 505
Front 505
Light sensor, Messages in the
multifunction display 477
Messages in display 477
Messages in the multifunction
display 477, 479, 481
Rear 505
Switch 143Lamps, indicator and warning
ABS 27, 436
Adaptive Damping System
(ADS)* 279
Alarm system 110
Battery (SmartKey with
KEYLESS-GO*) 119
Battery (SmartKey) 114
Brakes 27, 437, 438
Center console 31, 32, 447
CHECK ENGINE 29, 439, 440
Differential locks* 205
Distance warning lamp* 263
Downhill Speed Regulation 274
Engine diagnostics 29, 439, 440
ESP
®27, 441
Fog lamps, Front/rear 143
Front passenger front air bag off 31,
32, 80
Fuel reserve 29, 446
High beam headlamps 29
Instrument cluster 26, 28, 436, 437,
438, 439, 440, 441, 442, 443, 444,
446
Off-road driving program 278
Parktronic* 290Preglow indicator, Diesel engine 29
Seat belt telltale 29, 89, 442
Seat belts 443
Seat heating* 138
Seat ventilation* 140
SRS 29, 74, 89, 446
Turn signals 27
Vehicle level control 281, 283
Language, Setting 172
LATCH-type child seat anchors see
Children in the vehicle
Layout of poly-V-belt drive
(GL 320 CDI) 552
Layout of poly-V-belt drive
(GL 450, GL 550) 552
Leather upholstery*, Cleaning and care
of 434
Lever for cruise control 255
License plate lamps 514
Messages in the multifunction
display 479
Replacing bulbs 505, 514
Light alloy wheels, Cleaning 432
Light sensor
Messages in the multifunction
display 477
164.boo Seite 582 Freitag, 30. März 2007 12:54 12
Page 585 of 601

584 Index
Multifunction display messages 449
ABS 451
ABS, ESP
®451
Air suspension 486
Air suspension program 486
Brake fluid 469
Brake lamps 477
Brake pads 467
Coolant 472
Corner-illuminating front fog
lamps* 478
Cruise control 452
Distronic* 453
Doors 474
Downhill Speed Regulation 467
EBP 468
Engine coolant 470, 472
ESP
®441
Fog lamps, Front 478
Fog lamps, Rear 480
Front passenger front air bag 460,
461, 462, 463
Fuel cap 474
Headlamps 477, 478, 480, 482
Hood 474Key, SmartKey 476
Key, SmartKey with
KEYLESS-GO* 475, 476
Lamps 477, 478, 479, 480, 482
Low tire pressure 464, 484, 485
Parking brake 468
Parking lamps 480
Tele Aid 483
Telephone* 483
Turn signals 482
Vehicle battery 466
Windshield washer fluid 483
Multifunction steering wheel 30, 156
Button operation 156
N
Navigation system* 166
See separate COMAND System
operating instructions
Net, Cargo* 312
Net, Parcel 319
Neutral gear position, Automatic
transmission 189
New vehicle, Break-in period 346
Night security illumination 146, 176
Normal occupant weight 417
Number, Vehicle Identification (VIN) 550O
Occupant distribution 417
Occupant safety 74
Active head restraint 90
Air bags 76
Children and air bags 77, 91, 93
Children in the vehicle 91
Fastening the seat belt 53
Front passenger front air bag off
indicator lamp 81, 85, 86
Infant and child restraint systems 92
LATCH-type child seat anchors 95
OCS 81
OCS, Messages in the multifunction
display 460, 461, 462, 463
Seat belts 53, 78
OCS 81
Self-test 86
Odometer 153, 155, 162
164.boo Seite 584 Freitag, 30. März 2007 12:54 12
Page 587 of 601

586 Index
Plastic and rubber parts, cleaning 432
Poly-V-belt drive
Layout (GL 320 CDI) 552
Layout (GL 450, GL 550) 552
Positions (Memory function*) see Seats
Pounds per square inch see PSI
Power assistance 348
Power outlets 324
Power seat see Seats, Power
Power tilt/sliding sunroof* 251
Convenience closing feature 250
Opening/closing 251
Stopping 250
Summer opening feature 249
Synchronizing 253
Power washer 426Power windows 246
Cleaning 431
Convenience closing feature 250
Door windows 247
Hinged quarter windows* 248
Opening/closing 246
Rear door windows, Blocking
operation 98
Summer opening feature 249
Synchronizing, Door windows 249
Practical hints 490
Premium unleaded gasoline 565
Problems
While driving 65
With starting see Starting difficulties
With the vehicle 18
Product information 9
Production options weight 417
PSI 417
Push-starting see Tow-startingQ
Quarter windows* see Power windows
R
Radio
AUDIO menu, Control system 164
Selecting station 164
Selecting station (satellite*) 164
Radio transmitters 370
Range (distance to empty) 185
Range of the sensors
Parktronic* 289
Reading lamp, front 149
Reading lamp, second-row 151
Rear automatic climate control 241, 244
Rear center console ashtray see Ashtrays
(Depending on vehicle configuration)
Rear climate control* 226
Rear door windows
Blocking operation 98
Rear fog lamp see Fog lamps
164.boo Seite 586 Freitag, 30. März 2007 12:54 12