Page 453 of 539
452 Practical hintsReplacing bulbsCorrect headlamp adjustment is extremely
important. To check and readjust a head-
lamp, follow the steps described:
Park the vehicle on a level surface
25 feet (7.6 m) from a vertical test
screen or wall.
Switch the headlamps on
(page 138).
If the beam does not show a beam pattern
as indicated in the figure left, then follow
the steps below:
Open hood (
page 326).
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. Turn clockwise for
upward movement and counterclock-
wise for downward movement.
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
headlamp adjustment, have the system
checked at an authorized
Mercedes-Benz Light Truck Center.
Page 455 of 539

454 Practical hintsReplacing wiper blades
Let tab2 latch into both recesses of
attachment3.
Check if the wiper blade is securely
fastened.
Fold the wiper arm backward to rest on
the windshield.
Make sure you hold on to the wiper arm
when folding it back.
Removing rear wiper blade
Fold wiper arm1 (
page 455) for-
ward until it engages.
!Never open the hood when the wiper
arms are folded forward.
Hold on to the wiper when folding the
wiper arm back. If released, the force
of the impact from the tensioning
spring could crack the windshield.
Do not allow the wiper arms to contact
the windshield glass without a wiper
blade inserted.
Make certain that the wiper blades are
properly installed. Improperly installed
wiper blades may cause windshield
damage.
For your convenience, we recommend
that you have this work carried out by
an authorized Mercedes-Benz Light
Truck Center.
Warning!
G
For safety reasons, switch off wipers and
remove SmartKey from starter switch (vehi-
cles with KEYLESS-GO*: Make sure the
vehicle’s on-board electronics have
status
0) before replacing a wiper blade.
Otherwise the motor could suddenly turn on
and cause injury.
Page 479 of 539
478 Practical hintsFusesAids for changing fuses
Fuse chart
A chart explaining fuse allocation and fuse
amperages can be found near the vehicle
tool kit in the cargo compartment
(page 431).
Spare fuses
Spare fuses are found near the vehicle tool
kit in the cargo compartment
(page 431).
Fuse extractor
The fuse extractor is found near the vehicle
tool kit in the cargo compartment
(page 431).
Main fuse box
The main fuse box is located in the engine
compartment on the passenger side.ML 3501Clamp
2Main fuse box cover
ML 5001Clamp
2Main fuse box cover
Removing/installing main fuse box
cover
Open the hood (
page 326).
Pull clamp1 in direction of arrow.
Lift fuse box cover2 up.
Install main fuse box cover in reverse
order.
!When closing the main fuse box, make
sure to fit cover2 on the fuse box
properly and engage clamp1.
Page 512 of 539

511 Index
Checking
Coolant level 332
Engine oil with the
control system (ML 500 only) 328
Engine oil with the
oil dipstick (ML 350 only) 330
Oil level 327
Tire inflate pressure 325
Vehicle lighting 325
Checking tire pressure
electronically with the
Advanced Tire Pressure Monitoring
System* (Advanced TPMS*) 351
Checking weights
Trailer and vehicle 315
Checklist
Off-road driving 307
Returning from off-road driving 313
Child safety 78
Air bags 68
Infant and child
restraint systems 73, 78
LATCH type child seat mounts 88Child safety switch see Blocking of rear
door window operation
Cigarette lighter*
Front center console 275
Cleaning
Carpet 379
Cup holder 379
Gear selector lever 379
Hard plastic trim items 379
Headlamps 194
Headliner 379
Instrument cluster 379
Leather upholstery* 380
Light alloy wheels 379
MB Tex upholstery 380
Plastic and rubber parts 380
Seat belts 379
Steering wheel 379
Windows 378
Windshield 56
Wiper blades 378
Cleaning and care of the vehicle 374
Cleaning tires 337Climate control 202
Adjusting 207
Adjusting air volume 208
deactivating 206
Defrosting 208
Rear passenger compartment 213
Rear window defroster 200
Setting the temperature 207
Clock 165
Closing
Glove box 270
Hood 327
Power tilt/sliding sunroof* 439
Side windows 231
Side windows with
KEYLESS-GO* 234
Tailgate 120
Vehicle with KEYLESS-GO* 123,
124
Tilt/sliding sunroof* 235
Tilt/sliding sunroof* with
KEYLESS-GO* 234
Windows 230
Page 516 of 539

515 Index
Emergency operations
Closing tilt/sliding sunroof* 439
Locking the vehicle 436
Opening tilt/sliding sunroof* 439
Remote door unlock 288
Unlocking the vehicle 435
Emergency tensioning device see ETD
Emission control 321
Ending
A call (telephone*) 180
Engine
Message in the display 410
Starting 49
Starting with KEYLESS-GO* 50
Technical data 486
Turning off 62
Engine cleaning 376
Engine compartment
Hood 326
Main fuse box 478
Engine malfunction
indicator lamp 385, 410
Engine malfunction indicator
lamp (Canada only) 25
Engine malfunction indicator
lamp (USA only) 25Engine number 502
Engine oil 327, 495
Adding 331
Additives 495
Checking level 327
Checking with the
control system (ML 500 only) 328
Checking with the
oil dipstick (ML 350 only) 330
Consumption 327
Display messages 414–415
Messages in display 329, 414–415
Viscosity 502
ESP
®
25, 95, 502
Off-road-ESP
®
98
Switching off 97
Switching on 98
Warning lamp 387
ETD 502
Safety guidelines 70
ETD (Emergency tensioning device) 76
Exterior mirrors
Folding 197
Exterior rear view mirrors
Adjusting 44
Parking position* for 174F
Fastening the seat belts 46
First aid kit 430
Flat tire 456
Lowering the vehicle 460
Preparing the vehicle 457
Spare wheel 433
Flexible Service System PLUS
(FSS PLUS) 502
Floormats* 279
Fluid level
Automatic transmission 332
Fog lamp, rear
Switching on 142
Fog lamps
Replacing bulbs 443
Fog lamps, front
Messages in display 418
Replacing bulbs 445
Switching on 142
Folding
Exterior mirrors 197
Folding the backrest forward 261
4-ETS 98
Off-road - 4-ETS 99
Page 518 of 539

517 Index
Global Positioning System (GPS) 503
Glove box 270
Closing 270
Opening 270
Good visibility 194
GPS 503
Gross Axle Weight Rating see GAWR
Gross Trailer Weight see GTW
Gross Vehicle Weight Rating see GVWR
Gross Vehicle Weight see GVW
GTW 365
GVW 366
GVW (Gross Vehicle Weight) 503
GVWR 366
GVWR
(Gross Vehicle Weight Rating) 503H
Hard plastic trim items
Cleaning 379
Hazard warning flasher 144
Switching off 145
Switching on 145
Head restraints
Power seats 40
Headlamp aim
Adjusting 451
Headlamp cleaning system* 333
Headlamps
Automatic control 139
Bi-Xenon* 501
Cleaning 377
Cleaning system* 194, 333
Manual mode 139
Refilling washer fluid 334
Switching off 62
Switching on 54
Washer fluid 500
Washer system 500
Headliner
Cleaning 379Heated seats* 133
Height adjustment
Head restraints 40
Seat belts 48
Steering wheel 41
High beam 54
High beam flasher 143
High beam halogen headlamps
Replacing bulbs 447
High beam headlamps
Messages in display 419
Replacing bulbs 443
Switching on 142
Hill start assist system 191
Hood 326
Closing 327
Message in display 416
Opening 326
Hooks
Loading 261
Hydroplaning 303
Page 522 of 539

521 Index
MAXCOOL maximum cooling 223
Maximum inflation pressure 366
Maximum load rating 366
Maximum loaded vehicle weight 366
Maximum tire inflation pressure 504
MB Tex upholstery
Cleaning 380
Mechanical key 435
Memory function* 135, 504
Recalling positions from
memory 136
Menus 153
AUDIO 157
In control system 153, 154
Message memory 159
Settings menu 161
Standard display 156
Submenus 152
TEL* 178
Trip computer 177
Message
Displaying 160
Message memory 159
Calling up 159Miles/kilometers in speedometer
Setting 164
Minispare wheel
Spare wheel 433
Mirrors
Activating exterior mirror
parking position* 196
Adjusting 43
Auto-dimming rear view mirror* 195
Exterior rear view mirror 44
Exterior rear view mirror
parking positions* 174
Modular COMAND System 504
Modular COMAND System see
separate operating instructions
MON 324
MON (Motor Octane Number) 504
Mounting
New wheel 459
Mph or km/h in speedometer 164
Multicontour seat* 132
Multifunction display 504
Selecting language 164
Standard display 154Multifunction display messages
ABS 397
Batteries 398, 407
Brake fluid 409
Brake pads 408
Coolant 412
Coolant level 410
Cruise control 398
Doors 413
EBP (Electronic Brake
Proportioning) 408
Engine oil 414–415
Fuel cap 416
Fuel reserve tank 416
Hood 416
Lamps 420
Lamps, exterior 418
Oil 414–415
Parking brake 409
SmartKey 417
SmartKey with KEYLESS-GO* 417
Tailgate 427
Tele Aid* 425, 426
Washer fluid 427
Multifunction steering wheel 26, 504
Page 523 of 539

522 IndexN
Navigation system see separate Modular
COMAND System operating instructions
Night security illumination 141
Normal occupant weight 366
O
Occupant Classification System 81
Self-test 86
Occupant Classification System see OCS
Occupant distribution 366
Occupant safety 66
Children and air bags 68
Children in the vehicle 78
Fastening the seat belt 46
Infant and child restraint systems 78
LATCH type child seat mounts 88
Seat belts 46, 70
OCS 504
Off-road - 4-ETS 99
Off-road - ABS 94
Off-road - ESP
®
98Off-road driving
Checklist 307, 313
Crossing obstacles 311
Driving instructions off-road
driving 306
Driving through water 310
Returning 313
Rules 307
Special driving features 306
Steep terrain 308
Off-road driving program 248
Switching off 249
Switching on 249
Oil
Adding 331
Consumption 327
Dipstick 327
Filler neck 331
Viscosity 502
One-touch gearshifting
Canceling gear range limit 190Opening
Doors from the inside 117
Fuel filler flap 323
Fuel filler flap manually 438
Glove box 270
Hood 326
Power tilt/sliding sunroof* 439
Side windows 232
Tailgate 118
Tilt/sliding sunroof* 235
Tilt/Sliding sunroof* in an
emergency 439
Windows 230
Opening the tailgate from
the inside electrically* 118
Opening the tailgate from
the outside 118
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