Page 385 of 416

385 Technical terms
Rim
(
page 273)
RON
(Research O
ctane N
umber)
The Research Octane Number for gaso-
line as determined by a standardized
method. It is an indication of a gaso-
line’s ability to resist undesired detona-
tion (knocking). The average of both
the ->MON (Motor Octane Number)
and RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.
Shift lock
When the vehicle is parked, this lock
prevents the transmission gear selec-
tor lever from being moved out of
positionP without key turned and
brake pedal depressed.
Sidewall
(
page 273)SRS
(S
upplemental R
estraint S
ystem)
Seat belts, emergency tensioning de-
vice and airbags. Though independent
systems, they are closely interfaced to
provide effective occupant protection.
Tele Aid System
(T
elematic A
larm I
dentification on
D
emand)
The Tele Aid system consists of three
types of response: automatic and man-
ual emergency, roadside assistance
and information. Tele Aid is initially ac-
tivated by completing a subscriber
agreement and placing an acquain-
tance call.
The Tele Aid system is operational pro-
vided that the vehicle’s battery is
charged, properly connected, not dam-
aged and cellular and GPS coverage is
available.Telematics*
A combination of the terms “telecom-
munications” and “informatics”.
Tightening torque
Force times lever arm (e.g. a lug
wrench) with which threaded fasteners
such as wheel bolts are tightened.
TIN
(T
ire I
dentification N
umber)
(
page 273)
Tire load rating
(page 262)
Tire ply composition and material used
(page 273)
Tire speed rating
(page 273)
Traction
(page 273)
Page 386 of 416
386 Technical termsTransfer case
Speed of rotation/torque converter
that works together with the ->auto-
matic transmission. In the LOW mode
off-road position, the transfer case de-
creases the output rotational speed of
the ->automatic transmission by ap-
proximately half. This results in a corre-
sponding increase of torque on the
drive axles.
The vehicle then has nearly double the
driving force but drives only approxi-
mately half as fast.
Tread
(
page 273)
Treadwear indicators
(page 273)TWR
(T
ongue W
eight R
ating)
(
page 273)
Uniform Tire Quality Grading Standards
(page 273)
Vehicle capacity weight
(page 273)
Vehicle maximum load on the tire
(page 274)
VIN
(Vehicle I
dentification N
umber)
The number set by the manufacturer
and placed on the body to uniquely
identify each vehicle produced.
Voice control system*
Voice control system for car phones,
portable cell phones and audio sys-
tems (radio, CD, etc.).
Page 387 of 416

387 Index
A
ABS 25, 80, 381
LOW RANGE mode 81
Malfunction indicator lamp 288, 289
Messages in display 298
Warning lamp 288, 289
Accelerator position, automatic
transmission 153
Accessory weight 271
Accident
In case of 56
Activating
Air conditioning (cooling) 170
Air recirculation mode 168
Anti-theft alarm system 88
Central locking (control system) 141
Defrost 168
Easy-entry/exit feature 142
ESP 87
Exterior headlamps 51
Exterior lamps 111
Exterior rear view mirror parking
position 161
Headlamps 51
Rear window defroster 163
Windshield wipers 53Adding
Coolant 245
Engine oil 243
Additional turn signals 334
Adjusting 37
Air distribution 167
Air volume 167
Backrest tilt 39
Exterior rear view mirror 41
Head restraint height 39
Head restraint height, rear seats 103
Head restraint tilt 39
Instrument cluster illumination 120
Interior rear view mirror 41
Mirrors 41
Multicontour seat* 104
Seat cushion length 104
Seat cushion tilt 39
Seat fore and aft adjustment 38
Seat height 39
Seats 37
Steering column in/out 40
Steering column up/down 40
Steering wheel 40Air conditioning (cooling)
Turning off 170
Turning on 170
Air conditioning refrigerant 376
Air distribution
Adjusting 167
Air pressure 271
Air pressure see Tire inflation pressure
Air recirculation mode 168
Activating 168
Deactivating 168
Air volume
Adjusting 167
AIRBAG OFF indicator lamp 295
Airbags 63
BabySmart
TM airbag deactivation
system 74, 381
Front 67
Safety guidelines 66
Window curtain airbags 68
Alarm
Audible 79, 88
Canceling 89, 90
Visual 88
Page 388 of 416

388 IndexAlarm system
Anti-theft 88
Anticorrosion/antifreeze 379
Antilock brake system (ABS) 381
Anti-theft alarm system
Arming 88
Canceling alarm 89
Disarming 89
Anti-theft systems 88
Anti-theft alarm system 88
Tow-away alarm 89
Aquaplaning see Hydroplaning
Armrest
Storage compartment below 191
Storage compartment in front of 191
Ashtrays 194
Aspect ratio 271
At the gas station 235
ATF (automatic transmission fluid) 244
AUDIO menu 128
Selecting radio station 129
Auto-dimming for rear view mirror 160
Automatic central locking
Activating/deactivating (control
system) 141Automatic climate control
Deactivating 170
Automatic headlamp mode 111
Automatic locking when driving 98
Automatic transmission 148
Accelerator position 153
Emergency operation (Limp Home
Mode) 153
Fluid level 244
Gear ranges 150
Gear selector lever position 148, 151
Gear shifting malfunctions 153
Kickdown 153
Manual shifting 149
One-touch gearshifting 149
Transmission fluid 244B
BabySmart
TM
Airbag deactivation system 74, 381
Compatible child seats 74, 381
Self-test 75
Backup lamps 334
Bulbs 334
Replacing bulbs 342
Bar 271
BAS 80, 82, 381
Messages in display 298
Batteries
SmartKey (replacing) 331
Batteries, SmartKey
Check lamp 95
Checking 95
Battery box
Fuse box in 360
Battery discharged
Jump starting 354
Battery, vehicle 247, 351
Charging 351
Disconnecting 352
Messages in display 302, 303
Reconnecting 353
Page 389 of 416

389 Index
Bead 271
Block heater (Canada only) 276
Blocking rear door window operation 78
B-pillar 366
Brake assist system (BAS) 381
Brake fluid 237, 376
Brake lamp bulbs, left and right 334
Brake lamp, high mounted 334
Brake pads
Message in display 303
Brakes 217
Warning lamp 290, 291
Break-in period 214
Brush guard* 329
Lowering 330
Raising and securing 330
Bulbs, replacing
Additional turn signals 334
Backup lamps 334, 342
Brake lamps 334, 341
Front fog lamps 334, 338
Front lamps 333, 334
Front turn signal lamps 334, 339
High and low beam 336High beam lamps 334
High mounted brake lamp 334
License plate lamps 334, 342
Low beam lamps 334
Parking lamps 334, 336
Rear fog lamp 334, 342
Rear turn signal lamps 334
Side marker lamps 334, 340
Standing lamps 334, 336
Tail lamp unit 334, 341C
CAC (Customer Assistance Center) 381
Calling up
Maintenance service indicator 278
Range (distance to empty) 145
CAN system 381
Capacities
Fuels, coolants, lubricants, etc. 374
Cargo area see Cargo compartment
Cargo compartment
Tailgate 97, 98
Tie-down rings 189
Cargo compartment cover 182
Installing 183
Removing 183
Cargo tie-down rings 189
Catalytic converter 232
CD changer 322
CD player
Operating 130
Center console 28
AIRBAG OFF indicator lamp 295
Lower part 29
Upper part 28
Page 390 of 416

390 IndexCentigrade
Setting temperature units 135
Central locking
From inside 99
Switch 99
Switching on/off (control
system) 141
Unlocking from inside 99
Certification label 366
Changing
Key setting 142
Charging
Vehicle battery 351
Checking
Coolant level 237, 244
Oil level 237, 239
Checklist
Off-road driving 225
Child safety 72
Infant and child restraint systems 62,
68, 72
LATCH child seat anchors 77
Child safety switch see Blocking of rear
door window operation
Cigarette lighter 195Cleaning
Cup holders 284
Gear selector lever 284
Hard plastic trim items 284
Headlamps 162
Headliner 284
Illuminated door sill panels 285
Instrument cluster 284
Leather upholstery 285
Light alloy wheels 284
MB Tex upholstery 285
Plastic and rubber parts 285
Rear Parking Assist sensors* 283
Seat belts 284
Steering wheel 284
Windows 283
Windshield 54
Wiper blades 283
Wood trims 285
Cleaning tires 250
Climate control 164
Adjusting 167
Defogging windshield 167
Defrosting 168
Rear window defroster 163
Setting the temperature 166Clock 25
Closing
Glove box 190
Hood 239
Side windows 171
Tailgate 98
Tilt/sliding sunroof 173, 328
Tilt/sliding sunroof with
SmartKey 175
Windows 171
Windows with SmartKey 172
Closing tilt/sliding sunroof
In an emergency 328
Cockpit 22, 381
Cockpit management and data system
(COMAND) 382
Cold tire inflation pressure 271
COMAND 382
COMAND see separate operating
instructions
Combination switch 23, 114
High beam flasher 52, 114
High beam headlamps 114
Turn signals 52
Windshield wipers 53
Page 391 of 416

391 Index
Control and operation of radio
transmitters 231
Control system 123, 382
AUDIO menu 128
Convenience submenu 142
Display digital speedometer 128
Functions 125, 127
Instrument cluster submenu 135
Lighting submenu 137
Menus 126, 127
Multifunction display 123
Multifunction steering wheel 124
NAVI menu 130
Satellite radio (USA only) 129
Selecting radio system 129
Settings menu 132
Standard display menu 128
Submenus 125, 127
TEL menu 145
Trip computer menu 144
Vehicle status message memory
menu 131
Vehicle submenu 141
Convenience feature 172Convenience submenu 142
Activating easy-entry/exit
feature 142
Setting key-dependency 143
Setting parking position for exterior
rear view mirror 143
Coolant 244, 378
Adding 245
Anticorrosion/antifreeze
quantity 378
Capacities 374
Checking level 244
Messages in display 305, 306, 307
Temperature 234
Temperature display 120
Warning lamp 305
Coolant level
Checking 237, 244
Crossing obstacles 228
Cruise control 176, 382
Canceling 177
Driving downhill 177
Driving uphill 177
Fine adjustment 178Messages in display 308
Setting current speed 177
Setting speed 178
Cruise control lever 176
Cup holder
In rear passenger footwell 193
Cup holders 192
Cleaning 284
In front passenger footwell 192
In glove box lid 192
Next to the armrest 192
Curb weight 271
Customer Assistance Center (CAC) 381
Page 392 of 416

392 IndexD
Data recording (vehicle) 20
Daytime running lamp mode 112
Setting 137, 138
Deactivating
Air conditioning (cooling) 170
Air recirculation mode 168
Alarm 89
Anti-theft alarm system 89
Central locking (control system) 141
Cruise control 177
Defrost 168
ESP 86
Exterior lamps 111
Exterior lamps delayed shut-off 139
Headlamps 58
Immobilizer 88
Interior lighting delayed shut-off 140
Rear window defroster 163
Tow-away alarm 90
Deep water see Standing water
Defogging
Windshield 167
Defrosting 168Delayed shut-off
Exterior lamps 139
Interior lighting 140
Department of Transportation see DOT
Dialing
A number (telephone) 147
Differential locks 156, 382
Switching off 159
Switching on 158
Difficulties
While driving see Problems while
driving
With starting 49
Digital speedometer 128
Direction of rotation (tires) 251
Discharged battery
Jump starting 354
Disconnecting
Vehicle battery 352
Display
Selecting 137
Displays
Digital speedometer 128
Maintenance service indicator 277Messages 241, 296
Selecting 137
Showing vehicle status
messages 131
Distance to empty (range)
Calling up 144
Door control panel 31
Door handle 31
Door sill panels
Cleaning 285
Door unlock
With Tele Aid 205
Doors
Messages in display 308
Opening from the inside 96
Opening from the outside 94
DOT 271
Downhill driving
Cruise control 177
Downshifting 149
Drink holders see Cup holders
Drinking and driving 216