Page 388 of 417

387 Technical terms
Rim
(
page 275)
RON
(R
esearch Octane Number)
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 275)SRS
(S
upplemental Restraint System)
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 Alarm Identification 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
(Tire Identification Number)
(
page 275)
Tire load rating
(
page 265)
Tire ply composition and material used
(
page 275)
Tire speed rating
(
page 275)
Traction
(
page 275)
Page 390 of 417

389 Index
A
ABS 25, 80, 383
LOW RANGE mode 81
Malfunction indicator lamp 290, 291
Messages in display 300
Warning lamp 290, 291
Accelerator position (Automatic
transmission) 153
Accessory weight 273
Accident
In case of 56
Activating
Air conditioning (cooling) 174
Air recirculation mode 172
Anti-theft alarm system 88
Central locking (control system) 142
Defrost 172
Easy-entry/exit feature 143
ESP 87
Exterior headlamps 51
Exterior lamps 111
Exterior rear view mirror parking
position 164
Headlamps 51
Rear window defroster 166
Windshield wipers 53Adding
Coolant 249
Engine oil 247
Additional turn signals 336
Adjusting 37
Air distribution 171
Air volume 171
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 174
Turning on 174
Air conditioning refrigerant 378
Air distribution
Adjusting 171
Air pressure 273
Air pressure see Tire inflation pressure
Air recirculation mode 172
Activating 172
Deactivating 172
Air volume
Adjusting 171
AIRBAG OFF indicator lamp 297
Airbags 63
BabySmart
TM airbag deactivation
system 74, 383
Front 67
Safety guidelines 66
Window curtain airbags 68
Page 391 of 417

390 Index
Alarm
Audible 79, 88
Canceling 89, 90
Visual 88
Alarm system
Anti-theft 88
Anticorrosion/antifreeze 381
Antilock brake system (ABS) 383
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 195
Storage compartment in front of 195
Ashtrays 198
Aspect ratio 273
At the gas station 239
ATF (automatic transmission fluid) 248AUDIO menu 128
Selecting radio station 129
Auto-dimming for rear view mirror 163
Automatic central locking
Activating/deactivating (control
system) 142
Automatic climate control
Deactivating 174
Automatic headlamp mode 111
Automatic locking when driving 98
Automatic transmission 149
Accelerator position 153
Emergency operation (Limp Home
Mode) 156
Fluid level 248
Gear ranges 154
Gear selector lever position 149, 151
Gear shifting malfunctions 156
Kickdown 153
Manual shifting 155
One-touch gearshifting 155
Transmission fluid 248B
BabySmartTM
Airbag deactivation system 74, 383
Compatible child seats 74, 383
Self-test 75
Backup lamps 336
Bulbs 336
Replacing bulbs 344
Bar 273
BAS 80, 82, 383
Messages in display 300
Batteries
SmartKey (replacing) 333
Batteries, SmartKey
Check lamp 95
Checking 95
Battery box
Fuse box in 362
Battery discharged
Jump starting 356
Page 393 of 417

392 Index
Center console 28
AIRBAG OFF indicator lamp 297
Lower part 29
Upper part 28
Centigrade
Setting temperature units 136
Central locking
From inside 99
Switch 99
Switching on/off (control
system) 142
Unlocking from inside 99
Certification label 368
Changing
Key setting 143
Charging
Vehicle battery 353
Checking
Coolant level 241, 248
Oil level 241, 243
Checklist
Off-road driving 229Child safety 72
Infant and child restraint systems 62,
72
LATCH child seat anchors 77
Child safety switch see Blocking of rear
door window operation
Cigarette lighter 199
Cleaning
Cup holders 287
Gear selector lever 287
Hard plastic trim items 287
Headlamps 165
Headliner 287
Illuminated door sill panels 288
Instrument cluster 287
Leather upholstery 288
Light alloy wheels 287
MB Tex upholstery 288
Plastic and rubber parts 288
Rear Parking Assist sensors* 286
Seat belts 287
Steering wheel 287
Windows 286
Windshield 54
Wiper blades 286
Wood trims 288Cleaning tires 254
Climate control 168
Adjusting 171
Defogging windshield 171
Defrosting 172
Rear window defroster 166
Setting the temperature 170
Clock 25
Closing
Glove box 194
Hood 243
Side windows 175
Tailgate 98
Tilt/sliding sunroof 178, 330
Tilt/sliding sunroof with
SmartKey 179
Windows 175
Windows with SmartKey 176
Closing tilt/sliding sunroof
In an emergency 330
Cockpit 22, 383
Cockpit management and data system
(COMAND) 384
Cold tire inflation pressure 273
COMAND 384
Page 397 of 417

396 Index
Engine oil level see Oil level
Enlarged cargo compartment 188
ESP 25, 80, 84, 384
Messages in display 302
Switching off 86
Switching on 87
Synchronizing 302
Warning lamp 295
ETD 62, 71, 384
Safety guidelines 66
Exterior lamp switch 110
Exterior lamps
Delayed shut-off 140
Exterior rear view mirrors
Adjusting 41
Parking position for 144
F
Fahrenheit
Setting temperature units 136
Fastening the seat belts 43
Fine adjustment
Cruise control 183
First aid kit 323Flat tire 348
Lowering the vehicle 352
Mounting the spare wheel 349
Spare wheel 325
Flexible Service System (FSS, Canada
vehicles) 384
Fog lamp, rear 114, 336
Fog lamps, front 113
Messages in display 315
4-ETS 80, 83
Front airbags 67
Front axle differential lock
Switching on 162
Front fog lamps
Replacing bulbs 336, 340
Front lamps
Messages in display 314, 316
Replacing bulbs 336, 338
Switching on 110
Front seat head restraints
Installing 102
Removing 101
Front towing eye 361
Front turn signal lamp
Replacing bulbs 342FSS (Flexible Service System, Canada
vehicles) 384
Fuel 240
Additives 379
Fuel reserve warning lamp 296
Gasoline additives 379
Premium unleaded gasoline 240,
376, 378
Refueling 239
Requirements 379
Reserve warning 25
Technical data 376
Fuel additives 379
Fuel consumption statistics
After start 145
Since last reset 145
Fuel filler flap 239
Locking 239
Opening 328
Unlocking 239
Fuel requirements 379
Fuel reserve tank
Message in display 313
Fuel tank
Capacity 376
Filler flap 239
Page 402 of 417

401 Index
Mirrors
Activating exterior rear view mirror
parking position 164
Adjusting 41
Auto-dimming for rear view
mirror 163
Exterior rear view mirror 41
Exterior rear view mirror parking
positions 144
Interior rear view mirror 41
Storing exterior rear view mirror park-
ing position 109
MON 240
MON (Motor Octane Number) 386
Monitoring reach
Rear Parking Assist* 185
Mph or km/h in speedometer
setting 137
Multicontour seat* 104
Multifunction display 123, 386
Selecting language 137
Standard display 127Multifunction display messages
ABS 300
BAS 300
Battery 304, 305
Brake fluid 305
Brake pads 305
Check engine 294
Coolant 307, 308, 309
Cruise control 310
Display 322
Doors 310
Engine 294
Engine air filter 310
Engine oil 311
ESP 302
Fuel reserve tank 313
Hood 313
Key 313
Lamps 314, 316
Parking brake 306
Sunroof 321
Tailgate 322
Tele Aid 321
Telephone* 322
Washer fluid 322Multifunction steering wheel 26, 124
Buttons 124
N
Navigation system
Operating 130
See separate COMAND operating in-
structions
Night security illumination 113
Setting 140
Normal occupant weight 274
O
Occupant distribution 274
Occupant safety 62
Airbags 63
Children in the vehicle 72
Fastening the seat belt 43
Infant and child restraint systems 72
LATCH child seat anchors 77
Seat belts 43, 66
Odometer, main 25
Page 405 of 417

404 Index
Radio transmitters, control and
operation 235
Range (distance to empty)
Calling up 146
Range of sensor
Rear Parking Assist* 185
Reading lamp 30
Rear axle differential lock
Switching on 162
Rear bench seat
Foldable 188
Rear door window
Blocking operation 78
Rear fog lamp
Replacing bulbs 344
Rear lamps see Tail lamps
Rear Parking Assist* 184, 386
Cleaning sensors 286
Malfunction 186
Monitoring reach 185
Warning indicators 186
Rear seat head restraints 102
Installing 103
Removing 103
Rear towing eye 361
Rear view mirror auto-dimming 163Rear view mirrors see Mirrors
Rear window defroster 166
Activating 166
Deactivating 167
Rear window wiper/washer 54
Recommended inflation pressure 275
Reconnecting
Vehicle battery 355
Recovery services
For stolen vehicle 210
Refrigerant
Air conditioning 378
Refueling 239
Regular checks 240
Remote controls
SmartKey 92
Remote door unlock
With Tele Aid 209
Removing
Cargo compartment cover 187
Wheel 351
Wiper blades 346Replacing
Brake lamp bulbs 336
Bulbs 335
Front lamp bulbs 338
Rear lamp bulbs 336, 343
SmartKey batteries 333
Wiper blades 346
Resetting
All functions (control system) 132
All functions of a submenu 133
Fuel consumption 145
Maintenance service indicator 282
Trip odometer 121
Residual heat utilization 386
REST (Residual engine heat
utilization) 386
Restraint systems 62, 386
Airbags 62
Child seat recognition 62
Child seats 62
Emergency Tensioning Device
(ETD) 62
Lower anchors and tethers for children
(LATCH) 62
Seat belts 62
Page 406 of 417

405 Index
Restraint systems see Infant and child re-
straint systems
Returning from off-road driving 234
Rim 275
Rims 371
Roadside Assistance see Tele Aid
RON 240
RON (Research Octane Number) 387
Roof rack 187
Rubber parts, cleaning 288
S
Safety
Occupant 62
Safety belts see Seat belts
Safety systems
Driving 80
Satellite radio (USA only) 129
Searching
Radio station 129
Seat adjustment
Synchronizing 102
Seat backrest
Folding forward 189
Returning to sitting position 189
Seat belt force limiter 71
Seat belt height adjustment 48Seat belts 62, 68
Cleaning 287
Fastening 43
Height adjustment 48
Proper use of 47, 70
Safety guidelines 66
Warning lamp 296
Seat bench
Folding forward 189
Returning to sitting position 189
Seat cushion length
Adjusting 104
Seating capacity 256
Seats 100
Adjusting 37
Easy entry/exit feature 100
Heater 104
Multicontour seat* 104
Split rear bench seat 188
Selecting
Display 138
Selector lever 25
Lock 49, 149
Position (automatic transmission) 25Self-test
BabySmartTM airbag deactivation
system 75
Tele Aid 203
Service
Parts 366
Service and Warranty Booklet
Loss of 367
Service life (tires) 253
Service System see Maintenance