
TIN (Tire Identification Number)
(definition) ..................................... 354
Tire bead (definition) ...................... 354
Tire pressure (definition) ................ 354
Tire pressures (recommended) ...... 352
Tire size (data) ............................... 360
Tire size designation, load-bearing capacity, speed rating .................... 349
Tire tread ....................................... 333
Tire tread (definition) ..................... 354
Total load limit (definition) ............. 355
Traction ......................................... 34 7
Traction (definition) ....................... 354
Tread wear ..................................... 347
TWR (permissible trailer drawbar
noseweight) (definition) ................. 354
Uniform Tire Quality Grading
Standards ...................................... 347
Uniform Tire Quality Grading
Standards (definition) .................... 352
Wear indicator (definition) ............. 355
Wheel and tire combination ........... 362
Wheel rim (definition) .................... 352
see Flat tire
Top Tether ............................................ 65
Tow-starting
Emergency engine starting ............ 328
Important safety notes .................. 325
Towing a trailer
Active Parking Assist ..................... 193
Cleaning the trailer tow hitch ......... 310
Coupling up a trailer ...................... 214
Decoupling a trailer ....................... 216
Driving tips .................................... 212
Important safety notes .................. 212
Installing the ball coupling ............. 214
Lights display message .................. 243
Mounting dimensions .................... 381
Power supply ................................. 217
Removing the ball coupling ............ 217
Storing the ball coupling ................ 217
Trailer loads ................................... 381
Towing away
Important safety guidelines ........... 325
Installing the towing eye ................ 326
Removing the towing eye ............... 326
With both axles on the ground ....... 327
With the rear axle raised ................ 327 Trailer coupling
see Towing a trailer
Trailer loads and drawbar nose-
weights ............................................... 216
Trailer towing
Active Blind Spot Assist ................. 209
Active Lane Keeping Assist .... 206, 212
Blind Spot Assist ............................ 205
PARKTRONIC ................................. 188
Permissible trailer loads and
drawbar noseweights ..................... 216
Transfer case ..................................... 162
Transmission
see Automatic transmission
Transmission position display ......... 157
Transmission position display
(DIRECT SELECT lever) ...................... 157
Transporting the vehicle .................. 327
Trim pieces (cleaning instruc-
tions) .................................................. 3 11
Trip computer (on-board com-
puter) .................................................. 2 23
Trip odometer
Calling up ....................................... 223
Resetting (on-board computer) ...... 224
Turn signals
Changing bulbs (front) ................... 124
Display message ............................ 244
Switching on/off ........................... 118
TWR (Tongue Weight Rating) (defi-
nition) ................................................. 35 4
Type identification plate
see Vehicle identification plate
U
UnlockingEmergency unlocking ....................... 86
From inside the vehicle (central
unlocking button) ............................. 85
V
Vanity mirror (in the sun visor) ........ 283
Vehicle
Correct use ...................................... 27
Data acquisition ............................... 28
Display message ............................ 257
Index19

Example: ECO display
The ECO display consists of three bars: R
Acceleration
RConstant
RCoasting
The percent value is the average value of thethree bars. The three bars and the mean value
begin at the value of 50%. A higher percent-
age indicates a more economical driving
style.
The ECO display does not indicate the actual fuel consumption. A fixed percentage count
in the ECO display does not indicate a fixed
consumption.
Apart from driving style, consumption is
dependent on many factors such as, e.g.: R load
R tire pressure
R cold start
R choice of route
R electrical consumers switched on
These factors are not included in the ECO dis-
play.
The evaluation of your driving style is carried
out using the following three categories: R
Acceleration (evaluation of all accelera-
tion processes):
- The bar fills up: moderate acceleration,
especially at higher speeds
- The bar empties: sporty acceleration
R
Constant (assessment of driving behavior
at all times):
- The bar fills up: constant speed and
avoidance of unnecessary acceleration
and deceleration
- The bar empties: fluctuations in speed
R
Coasting (assessment of all deceleration
processes):
- The bar fills up: anticipatory driving,
keeping your distance and early release
of the accelerator. The vehicle can coast
without use of the brakes.
- The bar empties: frequent braking
iAn economical driving style specially
requires driving at moderate engine
speeds.
To achieve a higher value in the categories
Acceleration and Constant:
R observe the gearshift recommendations.
R drive in drive program E.
iOn long journeys at a constant speed, e.g.
on the highway, only the bar for
Constant
will change.
iThe ECO display summarizes the driving
characteristics from the start of the journey
to its completion. For this reason, the bars
change dynamically at the beginning of the
journey. On longer journeys, there are
fewer changes. For more dynamic changes, carry out a manual reset.
For further information on the ECO display,
see ( Y page 224).
Driving tips171
Driving and parking
Z

Example: tire pressure table for all tires permitted
for this vehicle by the factory
If a tire size precedes a tire pressure, the tirepressure information following is only valid
for that tire size. The load conditions "partially
laden" and "fully laden" are defined in the
table for different numbers of occupants and amounts of luggage. The actual number of
seats may differ.
Example: tire pressure table with tire dimensions
Some tire pressure tables show only the rim
diameters instead of the full tire size, e.g.
R18 . Rim diameter is part of the tire size and
can be found on the tire sidewall
( Y page 349).
If the tire pressures have been set to the
lower values for lighter loads and/or lower
road speeds, the pressures should be reset to
the higher values:
R if you want to drive with an increased load
and/or
R if you want to drive at higher road speeds
iThe tire pressures for increased loads
and/or higher road speeds, shown in the
tire pressure table, may have a negative
effect on driving comfort.
iFor vehicles towing a trailer, the full load
value on the tire pressure label located on
the inside of the fuel filler flap is valid for the rear axle.
Option 3) The tire pressure for the emer-
gency/collapsible spare wheel (depending
on vehicle equipment) can be found:
R printed in yellow on the rim of the emer-
gency/collapsible spare wheel
R in the "Wheel and tire combinations" sec-
tion ( Y page 360) in this Operator's Manual
R on the Tire and Loading Information placard
on the B-pillar on the driver's side
If the tire pressure is not set correctly, this
can lead to an excessive build up of heat and
a sudden loss of pressure.
For more information, contact a qualified spe- cialist workshop.
Tire pressure337
Wheels and tires
Z