2008 MERCEDES-BENZ GL320 headlamp

515 Practical hints
Replacing bulbs
Example illustration headlamp, driver’s side
2Headlamp vertical adjustment screw
3Headlamp vertical adjustment screw
Always turn adjustment screws2
and3 simultaneously for vertical ad-
justment until the headlamp is adjust-
ed as shown1 (
page 514). Turn
clockwise for upward movement and
counterclockwise for downward move-
ment.
Graduations:
screw2:0.50° pitch
screw3:0.67° pitch
The left and right headlamps must be ad-
justed individually.
iIf it is not possible to obtain a proper head-
lamp adjustment, have the system checked at an
authorized Mercedes-Benz Light Truck Center.
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537 Practical hints
Jump starting
The jump-start contacts are located in the
engine compartment.
1Negative (-) terminal
2Positive (+) terminal
3Positive terminal cover
Make sure the two vehicles do not
touch.
Turn off all electrical consumers.
Apply parking brake (page 67).
Set automatic transmission to
positionP (
page 191).
Open the hood (page 378).
Remove cover from negative
terminal1.
Flip up cover3 of positive terminal2
in direction of arrow.
1Negative terminal of discharged
battery
2Positive terminal of discharged battery
4Positive terminal of charged battery
5Negative terminal of charged battery
Connect positive terminal2 and4
with the jumper cable. Clamp cable to
charged battery4 first.
Start engine of the vehicle with the
charged battery and run at idle speed.
Connect negative terminals1 and5
of the batteries with the second jumper
cable. Clamp the cable to negative
terminal5 of the charged battery
first.
Start the engine of the disabled vehi-
cle.
You can now turn on the electrical consum-
ers. Do not switch on the headlamps under
any circumstances.
Remove the jumper cables first from
negative terminals1 and5 and then
from positive terminals2 and4.
You can now switch on the headlamps.
Have the battery checked at the near-
est authorized Mercedes-Benz Light
Truck Center.
Warning!G
Keep flames or sparks away from battery.
Do not smoke.
Observe all safety instructions and precau-
tions when handling automotive batteries
(
page 528).
!Never invert the terminal connections!
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563 Technical data
Fuels, coolants, lubricants
ModelCapacityFuels, coolants, lubricants, etc.
Front wheel hubsAll modelsapprox. 1.5oz (43g) eachHigh temperature roller bearing grease
Brake systemAll models-MB Brake Fluid (DOT 4+)
Cooling systemGL 320 CDIapprox. 10.0 US qt (9.5 l)MB Anticorrosion/Antifreeze
GL 450approx. 10.6 US qt (10.0 l)MB Anticorrosion/Antifreeze
GL 5501approx. 12.7 US qt (12.0 l)MB Anticorrosion/Antifreeze
Fuel Tank
including a reserve ofAll models26.4 US gal (100.0 l)
approx. 3.4 US gal (13.0 l)Gasoline engine:
Premium unleaded gasoline:
Minimum Posted Octane 91
(Avg. of 96 RON/86 MON)
Diesel engine:
ULTRA-LOW SULFUR HIGHWAY DIESEL FUEL
(15 ppm SULFUR MAXIMUM)
Air conditioning systemAll models-R-134a refrigerant and special PAG lubricant oil
(never R-12)
Windshield washer system
and headlamp cleaning
system*All models8.1 US qt (7.7 l)MB Windshield Washer Concentrate2
1Data preliminary.2Use MB Windshield Washer Concentrate “MB SummerFit” and water for temperatures above freezing or MB Windshield Washer Concentrate “MB SummerFit” and
commercially available premixed windshield washer solvent/antifreeze for temperatures below freezing. Follow suggested mixing ratios (page 569).
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569 Technical data
Fuels, coolants, lubricants
Windshield washer system and
headlamp cleaning system*
Both the windshield washer system and
headlamp cleaning system* are supplied
from the windshield washer reservoir.
The windshield washer reservoir has a ca-
pacity of approximately 8.1 US qt (7.7 l).
Refill the reservoir with MB Windshield
Washer Concentrate and water (or con-
centrate and commercially available
premixed windshield washer sol-
vent/antifreeze, depending on ambient
temperatures).Windshield and headlamp washer fluid
mixing ration
For temperatures above freezing point, use
MB Windshield Washer Concentrate
“MB SummerFit” and water:

1 part “MB SummerFit” to 100 parts
water
(1.34 fl oz [40 ml] “MB SummerFit” to
1gal [4.0l] water)
For temperatures below freezing point, use
MB Windshield Washer Concentrate
“MB SummerFit ” and commercially avail-
able premixed windshield washer
solvent/antifreeze:

1 part “MB SummerFit” to 100 parts
solvent
(1.34 fl oz [40 ml] “MB SummerFit” to
1 gal [4.0 l] solvent)Warning!G
Washer solvent/antifreeze is highly flamma-
ble. Do not spill washer solvent/antifreeze
on hot engine parts, because it may ignite
and burn. You could be seriously burned.
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572 Index
Automatic climate control (3-zone)* 228
Air conditioning refrigerant 563
Air conditioning, Cooling 239, 240
Air distribution, Front 234
Air distribution, Rear 243
Air recirculation mode 237
Air vents*, second-row seats 245
Air vents*, third-row seats 245
Air vents, Front 234
Air volume 235
Control panel, Front 230
Control panel, Rear 241
Deactivating system 232
Defogging 235
Defrosting 235
Maximum cooling, MAXCOOL 237
Rear passenger compartment 241
Rear window defroster 212
Residual engine heat (REST) 241
Using driver-side settings for
all temperature zones 240Automatic headlamp mode 144
Automatic lighting control, Interior
lighting 150
Automatic locking when driving 128
Automatic transmission 56
Accelerator position 195
Emergency operation
(limp-home mode) 200
Gear ranges 197
Gear selector lever 56, 189
Gear selector lever position 192
Gear shifting malfunctions 200
Hill start assist system 196
Kickdown 196
Shifting procedure 192
Starting the engine 56
Steering wheel gearshift control 198
Towing a trailer 197
Transmission fluid level 381
Transmission positions 193
Automatic Transmission Fluid see ATFB
Backrest
Seat 46
Seat, Lumbar support 137
Seat, Multicontour* 138
Backup lamps
Messages in the multifunction
display 477
Replacing bulbs 511
Bar 416
BAS 103
Lamps in instrument cluster 436
Messages in the multifunction
display 451
Batteries, SmartKey
Check lamp 112, 115
Checking battery condition 120
Messages in the multifunction
display 466
Replacing 502
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573 Index
Battery, Vehicle 528
Charging 535
Disconnecting and connecting 530
Jump starting 536
Removing and installing 530
Bead 416
Beverage holder see Cup holder
Bi-Xenon headlamps* see headlamps
Bolts, Spare wheel 494
Brake fluid 564
Checking 376
Messages in the multifunction
display 469
Brake lamp
Cleaning lenses 429
Messages in the multifunction
display 477
Replacing bulbs 511
Brake pads 348
Messages in the multifunction
display 467
Brakes 348
Warning lamp 437
Break-in period 346
Bulbs, replacing see Replacing bulbsButton for Voice control* system 30,
156
C
California retail buyers and lessees,
Important notice for 11
Camera see Rear view camera*
Can holder see Cup holder
Capacities and recommended
fuel/lubricants 562
Card holder 33, 37, 320
Cargo compartment cover blind 310
Cargo net* 312
Cargo tie-down rings 302
Carpets, Cleaning 433
Carriers* 295
Catalytic converter
(gasoline engine) 371
CD changer 165, 315
CD player 165
Center console
Lower part 33
Upper part (Vehicles with
enhanced off-road package*) 32
Upper part (Vehicles without
enhanced off-road package*) 31Central locking
Automatic 128
Locking/unlocking from the
inside 128
Switch 128
Certification label 550
CHECK ENGINE malfunction indicator
lamp 439, 440
Checking tire pressure electronically with
the Advanced Tire Pressure Monitoring
System (Advanced TPMS)*,
(Canada only) 401
Checking tire pressure electronically with
the Tire Pressure Monitoring System
(TPMS), (USA only) 398
Checklist
Off-road driving 357
Returning from off-road driving 363
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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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579 Index
Fuel consumption statistics
Since last reset 185
Since start 184
Fuel filler flap 374
Locking/unlocking 374
Opening 374
Opening in an emergency 497
Fuel tank
Capacity 563
Filler flap 374
Fuels, coolants, lubricants etc. 562
Fuses 543
Fuse box in cargo compartment 544
Fuse box in engine compartment 544
Fuse box in passenger
compartment 545
Fuse chart 490
Replacing 543G
Garage door opener 338
Gasoline see Fuel
GAWR 416
Gear range
Automatic transmission 189, 197
Limiting 197
Shifting into optimal 199
Gear selector lever 25, 56, 189
Cleaning 433
Gearshift pattern for automatic
transmission 189
Messages in the multifunction
display 459
Position indicator 192, 197
Transmission position 192
Global locking/unlocking see Key,
SmartKey
Glove box 315
Good visibility 208Gross Axle Weight Rating see GAWR
Gross Trailer Weight see GTW
Gross Vehicle Weight Rating see GVWR
Gross Vehicle Weight see GVW
GTW 416
GVW 416
GVWR 416
H
Halogen headlamp see Headlamps
Hands-free microphone 34
Hard plastic trim items, cleaning 433
Hazard warning flasher 149
Head restraints 46, 133
Active head restraint 90, 133
Front seats, Adjusting 46
Rear seats 91
Rear seats, Adjusting 135
Rear seats, Removing and
installing 136
Headlamp aim
Adjusting 514
Headlamp cleaning system* 208, 383
Reservoir capacity 563
Headlamp shut-off delay see Delayed
shut-off, Exterior lamps
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