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 389 of 417
388 Technical terms
Transfer 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 275)
Treadwear indicators
(
page 276)TWR
(T
ongue Weight Rating)
(
page 276)
Uniform Tire Quality Grading Standards
(
page 276)
Vehicle capacity weight
(
page 276)
Vehicle maximum load on the tire
(
page 276)
VIN
(V
ehicle Identification Number)
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 410 of 417

409 Index
Tele Aid 202
Call priority 208
Emergency calls 204
Information 207
Initiating an emergency call
manually 205
Messages in display 321
Remote door unlock 209
Roadside Assistance 206
Stolen Vehicle Recovery
services 210
System self-check 203
Tele Aid System 202
Tele Aid System 387
Telematics* 387
Telephone
Answering a call 147
Dialing a number from the phone
book 148
Ending a call 147
Loading phone book 148
Operating 146
Redialing 148
Telephone* 26, 201
Messages in display 322Temperature
Display mode 136
Setting interior temperature 170
Setting units in display 136
Tires 261
Text messages
Multifunction display 300
Tie-down rings (cargo compartment) 193
Tightening torque 387
Tightening torque (wheel bolts) 352
Tilt/sliding sunroof 178
Closing 178, 330
Closing with SmartKey 179
Opening 178, 330
Opening with SmartKey 179
Stopping 179
Time
Setting display mode 136
Time display mode
Setting 136
TIN 275
Tire
Vehicle maximum load on 276
Tire and Loading Information 256
Tire and loading terminology 273
Tire care and maintenance 253Tire Identification Number see TIN
Tire inflation pressure
Checking 260, 261
Tire inspection 253
Tire load rating 275
Tire ply composition and material
used 275
Tire speed rating 225, 266, 275
Tire terminology 273
Tire traction 224
Tires 252, 371
Direction of rotation 255
Driving instructions 223
Retreads 252
Rims and tires 371
Rotating 276
Service life 253
Temperature 261, 272
Tread depth 254, 278
Wear pattern 277
Winter 278
Tools 323
Tow-away alarm 28, 89
Arming 89
Disarming 89
Disarming for transport 89
Page 412 of 417

411 Index
V
Vehicle
Data recording 20
Individual settings 132, 135
Locking 28
Locking in an emergency 328
Lowering 352
Service battery 353
Towing 358
Unlocking 28
Unlocking in an emergency 327
Vehicle battery 353
Vehicle capacity weight 276
Vehicle care 283
Cup holders 287
Engine cleaning 285
Gear selector lever 287
Hard plastic trim items 287
Headlamps 285
Instrument cluster 287
Leather upholstery 288
Light alloy wheels 287
MB Tex upholstery 288
Ornamental moldings 285
Paintwork 284
Plastic and rubber parts 288Power washer 284
Seat belts 287
Side markers 285
Steering wheel 287
Tail lamps 285
Tar stains 284
Turn signals 285
Vehicle washing 285
Window cleaning 286
Wiper blades 286
Wood trims 288
Vehicle data recording 20
Vehicle identification number (VIN) 368
Vehicle jack 324
Vehicle loading terminology 273
Vehicle maximum load on the tire 276
Vehicle status message memory 131
Calling up 131
Clearing 131
Vehicle tool kit 323
Vehicle washing 285
VIN (Vehicle Identification Number) 368,
388
Voice control system* 388W
Warning indicators
Rear Parking Assist* 186
Warning sounds
Drivers seat belts 68
Exterior lighting 111
Maintenance service indicator 281
Parking brake 50
Warranty coverage 367
Washer fluid see Windshield washer fluid
Washing the vehicle 284
Wear pattern (tires) 277
Weights and ratings 375
Wheel change
Tightening torque 352
Wheels
Tires and wheels 252
Window curtain airbags 68
Windows see Side windows
Windshield
Defogging 171
Replacing wiper blades 346
Washer fluid 249, 382
Washer system 382