
452 Technical termsMON
(M
otor O
ctane N
umber)
The Motor Octane Number for gasoline 
as determined by a standardized 
method. It is an indication of a 
gasoline’s ability to resist undesired 
detonation (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.
Multifunction display
Display field in the instrument cluster 
used to present information provided 
by the control system.
Multifunction steering wheel
Steering wheel with buttons for 
operating the control system.
Normal occupant weight
(
page 332)OCS
(O
ccupant C
lassification S
ystem) 
The system automatically turns the 
front passenger front air bag on or off 
based on the classified occupant size 
category determined by weight sensor 
readings from the seat.
Occupant distribution
(
page 332)
Overspeed range
Engine speeds within the red marking 
of the tachometer dial. Avoid this 
engine speed range, as it may result in 
serious engine damage that is not 
covered by the Mercedes-Benz Limited 
Warranty.
Poly-V-belt drive
Drives engine-components (alternator, 
AC compressor, etc.) from the engine.Power train
Collective term designating all 
components used to generate and 
transmit motive power to the drive 
axles, including
engine
clutch/torque converter
transmission
transfer case
drive shaft
differential
axle shafts/axles
Production options weight
(
page 333)
Program mode selector switch
Used to switch the automatic 
transmission* between standard 
operationS and comfort operationC. 

455 Index
A
ABS 25, 87, 449
Indicator lamp 350
Messages in display 360
Accelerator position, 
automatic transmission* 165
Accessory weight 331
Accident
In case of 56
Active head restraints
see Head restraints
Additional turn signals 398
Air bags 63
Children 64
Front passenger front air bag off 
indicator lamp 27, 80, 356
Front, Driver 67
Front, Passenger 67
Passenger 67
Safety guidelines 66
Side impact (front and rear*) 68
Window curtain 68
Air conditioning refrigerant 442Air conditioning system
Automatic climate control* 
(Canada only) 186
Climate control 176
Air conditioning, Cooling
Automatic climate control* 
(Canada only) 196
Climate control 183
Air distribution
Automatic climate control* 
(Canada only) 190
Climate control 180
Air pressure see Tire inflation pressure
Air recirculation mode
Automatic climate control* 
(Canada only) 192
Climate control 182
Air vents, Front
Automatic climate control* 
(Canada only) 187
Climate control 177
Air vents, Rear
Automatic climate control* 
(Canada only) 198
Climate control 185Air volume
Automatic climate control* 
(Canada only) 191
Climate control 180
Alignment bolt (vehicle tool kit) 408, 449
Anticorrosion/antifreeze 446, 447
Antiglare, Rear view mirror 170
Anti-theft systems 93
Anti-theft alarm system* 93
Immobilizer 93
Tow-away alarm* 95
Aquaplaning see Hydroplaning
Armrest 258
Ashtrays 261
Aspect ratio 331
ATF (Automatic transmission fluid) 300
AUDIO menu (Control system) 136
Audio system 199
Audio and telephone, operation 199
Button and soft key operation 202
CD changer* with MP3 218
CD operation 216 

465 Index
Multifunction display messages
ABS 360
Brake fluid 370
Brake lamps 377
Brake pads 370
Coolant 371, 372, 373
Cruise control 374
Display 374
Door 374
Engine coolant 371, 372, 373
Engine oil 375
ESP
®
361, 362
Fog lamps 377, 379
Front passenger front 
air bag 364, 367
Fuel cap 352, 376
Headlamps 378, 379
Hood 376
Key, SmartKey 376
Lamps, exterior 377–380
Parking brake 370
Parking lamp 379
Seat belt system 381
SRS 363
Steering gear oil 381Tele Aid* 382
Telephone* 382
Tilt/sliding sunroof* 382
Trunk 382
Turn signals 380
Windshield washer fluid 382
Multifunction steering wheel 26, 131, 
452
Button operation 131
N
Navigation system* 138
See separate COMAND* operating 
instructions
Net, parcel 258
Neutral gear position, Automatic 
transmission* 162
Neutral gear position, Manual 
transmission 161
New vehicle break-in 282
Night security illumination 121
Setting 151
Normal occupant weight 332
Number, vehicle identification (VIN) 428O
Occupant Classification System see OCS
Occupant distribution 332
Occupant safety 62
Air bags 63
Children and air bags 64
Children in the vehicle 74
Fastening the seat belt 45
Front passenger front air bag off 
indicator lamp 80, 356
Infant and child restraint systems 74
LATCH-type child seat anchors 83
OCS 77
Seat belts 45, 66
OCS 77, 452
Self-test 81
Odometer 130
Oil level see Engine oil level, Checking oil 
level
Oil see Engine oil
One-touch gearshifting 
(Automatic transmission*) 168
Canceling gear range limit 169
Downshifting 169
Upshifting 169 

467 Index
R
Radio
Operation 202, 207
Selecting stations (Control 
system) 136
Radio transmitters 291
Range (distance to empty) 156
Reading lamp 125
Rear bench seat, foldable* 253
Rear door window
Blocking operation 85
Rear fog lamp see Fog lamps
Rear lamps see Tail lamps
Rear outer seats
Adjusting head restraint height 110
Rear passenger compartment
Adjustable air vents 184, 197
Rear seat ashtray see Ashtray
Rear seat head restraints see Head 
restraints
Rear view mirrors see Mirrors
Rear window defroster 175
Rear window sunshade* 174
Recommended tire inflation 
pressure 333Recovery services, Stolen vehicle 
(Tele Aid*) 273
Refrigerant, Air conditioning 442
Refueling 294
Regular checks 295
Remote control, SmartKey 98
Remote door unlock (Tele Aid*) 272
Replacing bulbs
Additional turn signal lamps 403
Backup lamp 404
Brake lamps 404
Corner-illuminating front fog 
lamps* 398
Fog lamps 404
Headlamps 398, 400, 402
High beam headlamps 398, 400
License plate lamps 404
Low beam headlamps 400
Parking lamps 401, 403, 404
Side marker lamps 403
Standing lamps 401, 403
Tail lamps 399, 404
Turn signal lamps 401, 403, 404
Reporting safety defects 18
Research Octane Number see RONReset button, In the instrument 
cluster 127, 141
Reset tool
Location 394
Residual heat utilization 197
Residual ventilation 197
Restraint system
see Children in the vehicle
see Infant and child restraint systems
see SRS
Restraint system see Infant and child 
restraint systems
Reverse gear position, Automatic 
transmission* 49
Reverse gear position, Manual 
transmission 48
Rims 333, 432
Roadside Assistance 12
RON 453
Roof rack* 250
Rubber parts, Cleaning 346
Run Flat Indicator* (Canada only) 317 

469 Index
Sidewall 333
Ski sack* (Canada only) 250, 252, 253
SmartKey see Key, SmartKey
Snow chains 337
Sound system* 204
Spare fuses 421
Spare wheel 436
Bolts 388
Mounting 406
Speed settings
Cruise control 249
Speedometer 25, 143
Split rear bench seat* 253
SRS 70, 453
Indicator lamp 25, 355
Message in display 363
Standing lamps
Replacing bulbs 398, 399
Standing water, Driving through 290
Starter switch 23, 33
Positions 33
Starting difficulties, Engine 50
Steering column 40, 41
Easy entry/exit feature* 42
Steering gear oil
Message in display 381Steering wheel 40
Buttons 26
Cleaning 347
Electrical adjustment* 41
Manual adjustment 40
Stolen vehicle
Recovery services 273
Storage compartments
Armrest 258
Cup holder 259
Glove box 257
Parcel net in front passenger 
footwell 258
Storing (memory function*)
Positions into memory 116
Storing tires 306
Submenus see Control system submenus
Substitute lamps
Bulbs 397
Summer opening feature 243
Sun visors 173
Sunshade* 174
Supplemental Restraint System see SRS
Symbols used in this operator’s 
manual 15T
Tachometer 25, 129
Overspeed range 129
Tail lamps
Cleaning 344
Messages in display 379
Replacing bulbs 399, 403
Tar stains 342
Technical data
Air conditioning refrigerant 442
Brake fluid 442
Coolant 440, 441, 444
Electrical system 437
Engine 430
Engine oil additives 442
Engine oils 442
Fuel requirements 444
Fuels 440, 441
Fuels, coolants, lubricants, etc 440
Gasoline additives 443
Lubricants 440
Premium unleaded gasoline 443
Rims and tires 432
Weights 439 

470 Index
Windshield washer 441
Windshield washer and headlamp 
cleaning* system 441, 448
Tele Aid* 265, 271, 453
Emergency calls 267
Hands-free microphone 29
Information 270
Initiating an emergency call 
manually 268
Message in display 382
Remote door unlock 272
Roadside Assistance 268
SOS button 268
Stolen Vehicle Recovery 
services 273
System self-check 266
Telematics* 454
Telephone* 26, 264
Answering/ending a call 158
Hands-free microphone 29
Message in display 382
Operation 157, 225
Phone book 158
Redialing 159Temperature
Display mode 135
Interior temperature 180
Temperature,Tires 315
Tether attachment points, see 
Children in the vehicle
Tie-down rings*, Trunk 256
Tightening torque, Wheel bolts 410, 454
Tilt/sliding sunroof* see Power tilt/sliding 
sunroof*
Time 145
TIN 333
Tire and Loading Information 
Placard 308
Tire and loading Information 
Terminology 331
Tires 304, 432
Air pressure 331
Care and maintenance 305
Chains 337
Cleaning 306, 342
Direction of rotation 307
Driving instructions 286
Important notes, Tire inflation 
pressure 315
Inflation pressure 296, 314, 316Information Placard 308
Inspection 305
Load rating 333
MOExtended system* 
(Canada only) 320, 411
Ply composition and material 
used 333
Problems under-/overinflation 319
Retreads 304
Rims and tires 432
Rotating 335
Run Flat Indicator* 
(Canada only) 317
Service life 305
Sizes 432
Speed rating 288, 323, 333
Temperature 315, 330
Terminology 331
Tire Identification Number see TIN
Traction 287
Tread 334
Tread depth 306, 336
Treadwear indicators 334
Vehicle maximum load on 334
Wear pattern 335
Winter 336