Page 366 of 539

365 Operation
Tires and wheels
Tire and loading terminology
Accessory weight
The combined weight (in excess of those
standard items which may be replaced) of
automatic transmission, power steering,
power brakes, power windows, power
seats, radio, and heater, to the extent that
these items are available as
factory-installed equipment (whether
installed or not).
Air pressure
The amount of air inside the tire pressing
outward on each square inch of the tire.
Air pressure is expressed in pounds per
square inch (psi), or kilopascal (kPa) or
bars.
Aspect ratio
Dimensional relationship between tire
section height and section width
expressed in percentage.Bar
Another metric unit for air pressure. There
are 14.5038 pounds per square inch (psi)
to 1 bar; there are 100 kilopascals (kPa)
to 1 bar.
Bead
The tire bead contains steel wires wrapped
by steel cords that hold the tire onto the
rim.
Cold tire inflation pressure
Tire inflation pressure when your vehicle
has been sitting for at least three hours or
driven no more than one mile (1.6 km).
Curb weight
The weight of a motor vehicle with stan-
dard equipment including the maximum
capacity of fuel, oil, and coolant, and, if so
equipped, air conditioning and additional
optional equipment, but without passen-
gers and cargo.DOT (D
epartment o
f T
ransportation)
A tire branding symbol which denotes the
tire meets requirements of the
U.S. Department of Transportation.
GAWR (G
ross A
xle W
eight R
ating)
The GAWR is the maximum permissible
axle weight. The gross vehicle weight on
each axle must never exceed the GAWR for
the front and rear axle indicated on the
certification label located on the driver’s
door B-pillar.
GTW (G
ross T
railer W
eight)
The GTW is the weight of the trailer plus
the weight of all cargo, equipment, luggage
etc. loaded on the trailer.
Page 381 of 539
380 OperationVehicle careUpholstery
Using aftermarket seat covers or wearing
clothing that has the tendency to give off
coloring (e.g. when wet, etc.) may cause
the upholstery to become permanently dis-
colored. By lining the seats with a proper
intermediate cover, contact-discoloration
will be prevented.
Leather upholstery*
Wipe leather upholstery with a damp cloth
and dry thoroughly or clean with
Mercedes-Benz approved Leather Care.
Exercise particular care when cleaning
perforated leather as its underside should
not become wet.MB Tex upholstery
Pour Mercedes-Benz approved Interior
Care onto soft lint-free cloth and apply
with light pressure.
Plastic and rubber parts
Do not use oil or wax on these parts.
Wood trims
Dampen cloth using water and use damp
cloth to clean wood trims in your vehicle.
Do not use solvents like tar remover or
wheel cleaner nor polishes or waxes as
these may be abrasive.
Page 390 of 539

389 Practical hints
What to do if …
Problem
Possible cause
Suggested solution
<
The red seat belt telltale remains
illuminated after driving off. The
vehicle’s speed does not exceed
15 mph (25 km/h).
You and/or your front passenger have for-
gotten to fasten your seat belts.
There are items placed on the front passen-
ger seat and therefore the system senses the
front passenger seat as being occupied.
Fasten your seat belts.
Remove the items from the front pas-
senger seat and put them in a safe
place.
<
The red seat belt telltale flashes
and you additionally hear an in-
termittent warning chime with in-
creasing intensity for a maximum
of 60 seconds from the time the
vehicle’s speed exceeds 15 mph
(25 km/h).
You and/or your front passenger have for-
gotten to fasten your seat belts.
There are items placed on the front passen-
ger seat and therefore the system senses the
front passenger seat as being occupied.
Fasten your seat belts.
Remove the items from the front pas-
senger seat and put them in a safe
place.
iAfter 60 seconds with an unfastened
seat belt on one of the front seats the
warning chime stops sounding and the
seat belt telltale illuminates continu-
ously.
The seat belt telltale will only go out if
both the driver and front passenger’s
seat belt are fastened, or the vehicle is
standing still and a front door is
opened.
Page 508 of 539

507 Index
A
ABS 93, 501
ABS control 93
Malfunction indicator lamp 382
Messages in display 397
Off-road - ABS 94
Warning lamp 382
Accelerator position, automatic
transmission 190
Accessory weight 365
Accident
In case of 59
Activating
Air circulation mode 226
Air conditioning (cooling) 211
Air recirculation mode 209, 224
Anti-theft alarm system 101
Central locking (control system) 172
Defrosting 208
Easy-entry/exit feature* 173
ESP
®
98Exterior headlamps 54
Hazard warning flasher 145
Headlamps 54
High beams 142
Ignition 34
Immobilizer 62, 100
Rear window defroster 201
Rear window wiper 58
Residual heat 212, 227
Seat heating* 134
Tow-away alarm 102
Warning indicators (Parktronic*) 256
Windshield wipers 55
Adaptive Damping
System (ADS)* 249, 501
Adding
Coolant 333
Engine oil 331
Additional turn signals 443Adjusting 38
Air distribution 207, 222
Air volume 207, 208, 222
Backrest tilt 40
Compass zone 171
Exterior rear view mirror 44
Head restraint height 40
Head restraint tilt 41
Headlamp aim 451
Instrument cluster illumination 148
Interior rear view mirror 44
Mirrors 43
Multicontour seat* 132
Seat cushion depth 132
Seat cushion tilt 40
Seat fore and aft adjustment 39
Seat height 39
Seats 38
Steering column height 43
Steering wheel 41
Adjusting steering column 43
ADS* 501
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 528 of 539

527 Index
Seat cushion depth
Adjusting 132
Seat heating*
Switching off 134
Switching on 134
Seating capacity 340
Seats 128
Adjusting 38
Easy entry/exit feature
(Vehicles with memory
function*) 128
Heater* 133
Multicontour seat* 132
Securing cargo
Cargo tie-down rings 260
Selecting display 165
Self-test
Occupant Classification System 86
Tele Aid* 282
Service
Calling up the service indicator 372
Parts 482Service and Warranty Booklet
Loss of 483
Service and warranty information 10
Service indicator
Calling up 372
Clearing 372
Service life (tires) 336
Setting
Convenience functions 163, 173
Cruise control 239
Day (clock) 166
Daytime running lamp mode 167,
168
Higher speed in cruise control 241
Hours (clock) 165
Individual vehicle settings 161
Interior lighting delayed
switch-off 170
Lamps and lighting (control
system) 167
Language, multifunction display 164
Locator lighting 168
Lower speed in cruise control 242
Miles/kilometers in
speedometer 164Minutes (clock) 166
Month (clock) 166
Parking position* for exterior
rear view mirrors 174
Slower speed in cruise control 242
Speed in cruise control 243
Speedometer display mode 164
Temperature (interior) 207, 221
Units
Speedometer 164
Year (clock) 167
Setting current speed 239
Setting the vehicle level* 252
Setting up the collapsible wheel chock
Vehicle tool kit 432
Settings
Convenience functions 173
Factory, SmartKey 108
Lighting (control system) 167
Menus and submenus 152
Resetting all (control system) 161
Resetting in the submenu 162
Selective 108, 114