Page 451 of 539
450 Practical hintsReplacing bulbs4Bulb socket of front fog lamp bulb
Turn bulb socket4 with the bulb
counterclockwise and remove it.
Insert new bulb socket4 with the bulb
into the lamp and turn it clockwise.
Plug electrical connector onto the bulb
socket4.
Reinstall front fog lamp2 into the
bumper.
Reinstall cover1 into the bumper un-
til it engages.
Replacing bulbs for rear lamps
Before you start to replace a bulb for a rear
lamp, do the following first:
Turn the exterior lamp switch to
positionM (
page 138).
Open the tailgate.
Open the cover in the cargo compart-
ment.
For the driver’s side rear lamps, see
“First aid kit” (
page 430).
For the passenger-side rear lamps, see
“Fuse box in cargo compartment”
(
page 479).Vehicles without sound system*:
Remove the additional cover on the
driver’s side.
1Screw
Turn the screws1 90° counterclock-
wise and remove the storage bin.
Page 452 of 539
451 Practical hints
Replacing bulbs
Example rear lamp passenger-side1Brake lamp
2Backup lamp
3Rear fog lamp (only driver’s side), tail
lamp, parking and standing lamp
4Side marker lamp
5Turn signal lamp
Turn the respective bulb socket with
the bulb counterclockwise and remove
it.
Press gently onto the respective bulb
and turn counterclockwise out of its
bulb socket.
Press the new bulb gently into its bulb
socket and turn clockwise until it en-
gages.
Align bulb socket and turn it clockwise.
License plate lamp
1License plate lamp cover
2Screw
Loosen both screws2.
Remove license plate lamp cover1.
Replace the tubular bulb.
Reinstall license plate lamp cover1.
Retighten screws2.
Adjusting headlamp aim
VVertical centerline
HHeadlamp mounting high, measured
from the center
iHigh beam adjustments simultaneous-
ly aim the low beam.
Vehicle should have a normal tailgate
load.
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 510 of 539

509 Index
Automatic climate control (3-zone)*
Adjusting air distribution 222
Adjusting air volume 222
Air recirculation mode 223
Defrosting 223
Rear passenger compartment 227
Rear window defroster 200
Residual heat utilization 226
Residual ventilation 226
Setting the temperature 221
Automatic climate control*
3-zone automatic climate
control* 216
Automatic climate control* (3-zone) 216
Automatic headlamp mode 139
Automatic lighting control
Deactivating 146
Automatic locking when driving 125Automatic transmission 49
Accelerator position 190
Emergency operation
(Limp Home Mode) 192
Gear ranges 187
Gear selector lever position 184, 185
Gear shifting malfunctions 192
Gearshift pattern for 49
Kickdown 190
Towing a trailer 191
Transmission fluid 332
B
Backrest
Folding forward 261
Backup lamps 444, 451
Bulbs 444
Bar 365, 501
BAS 95, 501
Batteries, SmartKey
Check lamp 109, 115Batteries, vehicle
Messages in display 398, 407
Battery
Key batteries 440
Replacing key batteries 440
Battery discharged
Jump starting 470
Battery, vehicle 462
Charging 469
Dis-/reconnecting 464
Removing/installing 464
Bead 365, 501
Belt reel 267
Bi-Xenon headlamps* 501
Block heater (Canada only) 370
Blocking
Rear door window operation 89
Brake assist system (BAS) 501
Brake fluid 495
Message in display 409
Brake lamp bulbs 444
Page 511 of 539

510 IndexBrake pads
Message in display 408
Brakes 300
Warning lamp 383
Break-in period 298
Bulbs, replacing 443
Additional turn signals 443
Backup lamps 444
Brake lamps 444
Fog lamps 443
Front fog lamp 449
Front lamps 443
High beam 443
License plate lamps 444, 451
Low beam 443
Parking, standing lamp 443
Rear fog lamps 450
Rear side marker lamp bulbs 450
Side marker lamp 443
Side marker lamps 444
Turn signal lamps 443, 444C
CAC (Customer Assistance Center) 501
Calibrating
Compass 171
California
Important notice 11
Call priority
Tele Aid* 287
Calling up
Range (distance to empty) 178
Service indicator 372
CAN system 501
Capacities
Fuels, coolants, lubricants, etc. 493
Cargo compartment
Fuse box in 479
Interior lighting 145
Lamp 147
Tie-down rings 260
Cargo compartment cover* 265
Closing 265
Installing 265
Opening 265
Removing 265
Cargo tie-down rings 260Carpet
Cleaning 379
Catalytic converter 320
CD player
Operating 158
Center console 27
Lower part 28
PASS AIR BAG OFF indicator
lamp 393
Upper part 27
Central locking
Automatic 125
Switch 126
Switching on/off
(control system) 172
Unlocking from inside 126
Central locking switch 126
Certification label 484
Changing
SmartKey setting 173
Charging
Vehicle battery 469
CHECK ENGINE malfunction
indicator lamp 385, 386
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 517 of 539

516 IndexFront air bags 71
Front fog lamps
Indicator lamp 138
Switching on 142
Front lamps
Messages in display 418
Replacing bulbs 443, 445
Front turn signal bulbs
Replacing 448
Front wiper blades
Installing 453
Removing 453
FSS Plus
(Flexible Service System PLUS) 502
Fuel 324
Additives 497
Fuel tank reserve warning lamp 388
Gasoline additives 497
Premium unleaded gasoline 324,
496
Requirements 496
Fuel additives 497Fuel cap
Message in display 416
Fuel consumption statistics
After start 177
Since last reset 177
Fuel filler flap 323
Locking 323
Opening 438
Unlocking 323
Fuel requirements 496
Fuel reserve tank
Message in display 416
Fuel tank
Filler flap 323
Fuels, coolants, lubricants etc. 493
Functions (control system) 154
Resetting 162
Fuse box
In cargo compartment 479
Fuse chart 478
Fuse extractor 478
Fuses 477
Fuse chart 478
Main fuse box 478G
Garage door opener 289
Erasing in remote control 294
Gasoline additives 497
Gasoline see Fuel
GAWR 365
GAWR (Gross Axle Weight Rating) 502
Gear range 503
Limiting 187
Shifting into optimal 190
Gear range limit
Canceling 190
Gear ranges
Automatic transmission 187
Gear selector lever
Cleaning 379
Gearshift pattern for automatic
transmission 182
Message in the display 400
Position 185
Shifting procedure 184
Global
Locking 108
Unlocking 108
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