Messages in the multifunction
display  ................................... 281, 296
MOExtended  .................................. 352
Ply composition and material
used ............................................... 241
Problems under-/overinflation  ......221
Retreads  ........................................ 218
Rims and tires (technical data)  ......352
Rotation  ......................................... 234
Service life  ..................................... 232
Sizes  .............................................. 352
Snow chains  .................................. 243
Speed rating  .......................... 237, 241
Storing  ........................................... 233
Temperature  .......................... 220, 234
Terminology  ................................... 239
TIREFIT (tire repair kit)  ...................320
Tire Identification Number  .............241
Tire pressure loss warning system . 222
TPMS low tire pressure/
malfunction telltale  ........................304
Traction  ................................. 233, 241
Tread  ............................................. 242
Tread depth  ........................... 232, 242
Treadwear  ...................................... 233
Treadwear indicators  .............232, 242
Vehicle maximum load on  ..............242
Wear pattern  .................................. 234
Winter tires  ............................ 242, 352
Tire speed rating  ....................... 237, 241
Tongue Weight Rating see TWR                                                    
Top tether
see Children in the vehicle                        
Total load limit  ................................... 241
Towing  
Towing eye bolt .............................. 339
Trailer  .................................... 113, 254
Vehicle  ........................................... 338
Towing eye bolt  ................................. 339
Traction  ...................................... 233, 241
Trailer towing  ............................ 113, 254
Coupling a trailer  ........................... 255
Decoupling ..................................... 257
Electrical connections .................... 254
Towing  ........................................... 256
Trailer hitch  ................................... 254
Weights and ratings  .......................254Transfer case ..................................... 117
Transmission see Automatic transmission                     
Transmission fluid level  .................... 216
Transmission gear selector lever see Gear selector lever                             
Transmission positions  .................... 112
Traveling abroad  ............................... 257
Tread (tires)  ....................................... 242
Tread depth (tires)  .................... 232, 242
Treadwear  .......................................... 233
Treadwear indicators (tires)  .... 232, 242
Trip computer menu  ......................... 138
Trip odometer, resetting  ................... 118
Turning off the engine  ...................... 108
Turn signals  ......................................... 95
Cleaning lenses  ............................. 263
Indicator lamps  ................................ 28
Messages in the multifunction
display  ........................................... 296
TWR (Tongue Weight Rating)  ........... 242
U
Uniform Tire Quality Grading
Standards  .................................. 233, 242
Units  
Selecting digital speedometer
display mode  ................................. 131
Selecting speedometer/
odometer display mode  .................131
Unleaded gasoline, premium  ........... 360
Unlocking the vehicle  
KEYLESS-GO  .................................... 71
Manually  ........................................ 306
SmartKey  ......................................... 70
Upholstery, cleaning  ......................... 265
Useful features  .................................. 194
V
Vehicle  
Battery  ........................................... 334
Care  ............................................... 260
Control system  .............................. 119
Identification Number (VIN)  ...........346
Locking/unlocking ........................... 70
Lowering (wheel change)  ...............329
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GWarning!
No messages will be displayed if either the
instrument cluster or the multifunction
display is inoperative.
As a result, you will not be able to see
information about your driving conditions,
such as
Rspeed
Routside temperature
Rwarning/indicator lamps
Rmalfunction/warning messages
Rfailure of any systems
Driving characteristics may be impaired.
If you must continue to drive, do so with added
caution. Contact an authorized Mercedes-
Benz Center as soon as possible.
GWarning!
HYBRID vehicles: It is imperative that you read
the HYBRID Supplemental Operating
Instructions included in your vehicle literature
portfolio. You may otherwise not recognize
potential danger.
:To dim instrument cluster illumination;Reset button =To brighten instrument cluster
illumination
For information on changing the instrument
cluster settings, e.g. the language, see
(Y page 130).
Activating the instrument cluster
The instrument cluster is activated when you
Ropen the driver’s door
Rswitch on the ignition
Rpress button :, ; or =
iOpening the driver’s door or pressing
button :, ; or = without switching on
the ignition activates the instrument
cluster illumination only for 30 seconds.
Adjusting the instrument cluster 
illumination
XTo brighten illumination: Press and hold
button = until the desired level of
illumination is reached.
XTo dim illumination: Press and hold
button : until the desired level of
illumination is reached.
iThe instrument cluster illumination is
dimmed or brightened automatically to suit
ambient light conditions.
The instrument cluster illumination will also
be adjusted automatically when you switch
on the vehicle’s exterior lamps.
iWith the exterior lighting switched on, the
brightness of the switches in the center
console will also be adjusted when using
button : or =.
Resetting trip odometer
XMake sure you are viewing the standard
display (Y page 122) in the multifunction
display.
XPress and hold the reset button in the
instrument cluster (Y page 117) until the
trip odometer is reset.
118Instrument clusterControls in detail
164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 118