Page 276 of 457

275 Operation
Engine compartment
Using a rag, turn cap1 slowly approx-
imately one half turn counterclockwise
to release any excess pressure.
Continue turning cap1 counterclock-
wise and remove it.
The coolant level is correct if the level
for cold coolant: reaches the top of
the mark (plastic bridge) visible
through the filling opening
for warm coolant: is approximately
0.6 in (1.5 cm) higher
Add coolant as required.
Replace cap1 on the filler neck.
Tighten cap1 clockwise until you
hear it click three times.
For more information on coolant, see
“Coolants” (
page 427).Windshield/rear window washer
system and headlamp cleaning system
The windshield washer reservoir is located
on the passenger side of the engine
compartment.
1CapFluid for the windshield/rear window
washer system and the headlamp cleaning
system is supplied from the windshield
washer reservoir. It has a capacity of
7.9 US qt (7.5 l).
During all seasons, add MB Windshield
Washer Concentrate “MB SummerFit” to
water. Premix the windshield washer fluid
in a suitable container.
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.
Page 277 of 457
276 Operation
Engine compartment
Use the tab to pull cap1 upwards.
Refill the reservoir with MB Windshield
Washer Concentrate “MB SummerFit”
and water (or commercially available
premixed windshield washer
solvent/antifreeze, depending on
ambient temperatures).
Press cap1 on the filler neck until it
has completely engaged.
For more information on filling up the
washer reservoir, see “Windshield/rear
window washer system and headlamp
cleaning system” (
page 430).
!Always use washer solvent/antifreeze
where temperatures may fall below freezing
point. Failure to do so could result in damage to
the washer system/reservoir.
!Only use washer fluid which is suitable for
plastic lenses. Improper washer fluid can
damage the plastic lenses of the headlamps.
Page 366 of 457
365 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
±Certain electronic systems are unable to
relay information to the control system.
The following systems may have failed:
Coolant temperature display
Tachometer
Cruise control display
Have the electronic systems checked
at an authorized Mercedes-Benz Light
Truck Center.
[Clean
fuel filterContact an authorized Mercedes-Benz
Light Truck Center as soon as possi-
ble.
WTop up
washer fluidThe fluid level has dropped to
about1/3of total reservoir capacity.
Add washer fluid (page 275).
Page 431 of 457

430 Technical data
Fuels, coolants, lubricants, etc.
Windshield/rear window washer
system and headlamp cleaning system
Fluid for the windshield/rear window
washer system and the headlamp cleaning
system is supplied from the windshield
washer reservoir. It has a capacity of
7.9 US qt (7.5 l).
The windshield washer reservoir is located
on the passenger side of the engine com-
partment (
page 275).
Refill the washer reservoir with
MB Windshield Washer Concentrate
“MB SummerFit” and water
(or concentrate and commercially
available premixed windshield washer
solvent/antifreeze, depending on
ambient temperatures).Windshield/rear window and
headlamp washer fluid mixing ratio
For temperatures above freezing point,
use MB Windshield Washer Concentrate
“MB SummerFit” and water:
1 part “MB SummerFit” to 100 parts
water
(1.34floz [40ml] “MBSummerFit” to
1gal [4.0l] water)
For temperatures below freezing point,
use MB Windshield Washer Concentrate
“MB SummerFit” and commercially
available premixed windshield washer
solvent/antifreeze:
1 part “MB SummerFit” to 100 parts
solvent
(1.34floz [40ml] “MBSummerFit” 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.
Page 440 of 457

439 Index
G
Garage door opener 32, 236
Gasoline see Fuel
Gasoline additives 427
GAWR 305
Gear range
Automatic transmission 167
Shifting into optimal 169
Transfer case 170
Gear range limit
Canceling 169
Gear selector lever 27, 162, 373
Cleaning 321
Lock 54
Position 164
Position (automatic
transmission) 27, 163
Unlocking manually 373
Global
Locking 102
Unlocking 102
Glove box 25, 215
Closing 215
Locking and unlocking
separately 216
Opening 215Good visibility 177
Gross Axle Weight Rating see GAWR
Gross Trailer Weight see GTW
Gross Vehicle Weight Rating see GVWR
Gross Vehicle Weight see GVW
GTW 305
GVW 305
GVWR 305
H
Hard plastic trim items, cleaning 321
Hazard warning flasher 124
Switching off 124
Switching on 124
Head restraints 108
Power seats 43
Headlamp cleaning system 275
Headlamps
Automatic control 118
Cleaning 318
Cleaning system 177, 275
Switching off 64
Switching on 56
Washer fluid 430
Washer system 430
Headlight switch-off delay see Delayed
switch-off, exterior lampsHeadliner
Cleaning 321
Heated seats 112
Heated steering wheel 225
Height adjustment
Head restraints 43
Seat belt outlet 52
Steering wheel 44
High beam flasher 57, 122
High beam headlamps
Messages in display 355
Replacing bulbs 378
Switching on 122
High mounted brake lamp 378
Message in display 354
Hood 267
Closing 269
Message in display 353
Opening 267
Hydroplaning 249
I
Identification labels 412
Certification label 412
Ignition
Switching on 54
Ignition (Position in starter switch) 39
Page 444 of 457

443 Index
Mirrors
Activating exterior rear view mirror
parking position 178
Adjusting 46
Auto-dimming for rear view
mirror 177
Exterior rear view mirrors 46
Interior rear view mirror 46
Storing exterior rear view mirror
parking position 116
Mobile phone see Telephone*
MON 265
Monitoring reach
Rear Parking Assist 201
Mph or km/h in speedometer
setting 149
Multicontour seat* 109
Multifunction display 133
Selecting language 149
Multifunction display messages
ABS 340
Advanced TPMS 342–343, 361–362
Backup lamp 357
Battery 344–345
Brake fluid 346
Brake lamps 354Brake pads 347
Coolant 347–350
Cruise control 350
Doors 350
Electronic systems 365
Engine oil 351–352
ESP
®341
Front fog lamps 355
Fuel 365
Fuel filler cap 353
Fuel reserve tank 353
High beam headlamps 355
High mounted brake lamp 354
Hood 353
Key 353
Lamps, exterior 354–359
License plate lamps 356
Light sensor 354
Low beam headlamps 356
Parking brake 347
Parking lamps 356
Rear fog lamp 357
Side marker lamps 355
SRS 360
Tail lamps 357
Tailgate 364Tele Aid 364
Telephone* 364
Tires 342–343, 361–362
Transfer case 363
Turn signal lamps 358–359
Washer fluid 365
Multifunction steering wheel 28, 134
Buttons 134
N
Navigation system
Operating 144
See separate COMAND operating
instructions
Night security illumination 120
Setting 153
Normal occupant weight 305
Page 451 of 457

450 Index
Switching on
Automatic central locking (control
system) 155
Differential locks 175
ESP
®95
Front axle differential lock 176
Headlamps 56
Heated steering wheel 225
Rear axle differential lock 176
Transfer case differential lock 175
Windshield wipers 58
Symbol messages
Multifunction display 344–365
T
Tachometer 27, 132
Overspeed range 132
Tail lamps 385
Cleaning 318
Messages in display 357
Replacing bulbs 378
Tailgate
Closing 106
Message in display 364
Opening 105
Unlocking in an emergency 371Tar stains 315
Technical data
Air conditioning refrigerant 425
Brake fluid 425
Coolant 422
Coolants 427
Electrical system 419
Engine 415
Engine oil 425
Engine oil additives 425
Fuel requirements 426
Fuels 422
Gasoline additives 427
Lubricants 422
Main dimensions 420
Premium unleaded gasoline 426
Rims and tires 416
Weights and ratings 421
Windshield and headlamp washer
system 424, 430
Tele Aid 229
Initiating an emergency call
manually 231
Message in display 364Tele Aid*
Call priority 235
Emergency calls 230
Information 233
Remote door unlock 235
Roadside Assistance 232
SOS button 231
Stolen Vehicle Recovery
services 236
System self-check 230
Telephone
Answering a call 160
Dialing a number from the phone
book 160
Ending a call 160
Loading phone book 160
Operating 159
Redialing 161
Telephone cradle
Changing 228
Page 454 of 457

453 Index
Paintwork 316
Power washer 315
Seat belts 321
Side markers 318
Steering wheel 321
Tail lamps 318
Tar stains 315
Turn signals 318
Upholstery 322
Vehicle washing 316
Window cleaning 319
Wiper blades 319
Wood trims 322
Vehicle data recording 20
Vehicle Identification Number (VIN) 412
Vehicle jack 367
Vehicle loading terminology 304
Vehicle maximum load on the tire 307
Vehicle Recovery services, Stolen (Tele
Aid) 236
Vehicle status message memory 144
Calling up 144
Clearing 145
Vehicle tool kit 366
Vehicle washing 316
VIN (Vehicle Identification Number) 412W
Warning indicators
Rear Parking Assist 202
Warning sounds
Driver’s or passenger’s seat belt 77
Exterior lighting 65, 104, 117
Maintenance service indicator 313
Parking brake 55
Seat belt telltale 332, 333
Warranty coverage 411
Washer fluid see Windshield washer fluid
Washing the vehicle 315
Wear pattern (tires) 308
Weights and ratings 421
Wheel change
Tightening torque 395
Wheels
Tires and wheels 277
Window curtain air bags 74
Windows see Side windows
Windshield
Defogging 188
Replacing wiper blades 388
Washer fluid 275, 430
Washer system 430Windshield defroster 180
Activating 181
Deactivating 181
Windshield washer fluid 430
Message in display 365
Mixing ratio 430
Refilling 275
Wiping with 59
Windshield washer system 430
Windshield wipers 25, 58
Fast wiper speed 58
Intermittent wiping 59
Rear window wiper/washer 60
Replacing wiper blades 388
Single wipe 59
Switching on 58
Wiping with windshield washer
fluid 59
Winter driving 309
Block heater (Canada only) 310
Snow chains 310
Tires 309
Winter driving instructions 251
Winter tires 309