
Setting (climate control) .................. 96
Transmission oil (on-board com-
puter) ............................................. 162
Timing (RACETIMER) ......................... 164
Tire pressure
Calling up (on-board computer) ..... 260
Checking manually ........................ 260
Display message ............................ 183
Maximum ....................................... 259
Not reached (TIREFIT) .................... 244
Notes ............................................. 258
Reached (TIREFIT) .......................... 244
Recommended ............................... 257
Tire pressure monitor
Checking the tire pressure elec-
tronically ........................................ 261
Function/notes ............................. 260
General notes ................................ 260
Important safety notes .................. 260
Restarting ...................................... 262
Warning lamp ................................. 198
Warning message .......................... 262
Tire-change tool kit ........................... 241
TIREFIT kit .......................................... 242
Important safety notes .................. 242
Storage location ............................ 241
Tire pressure not reached .............. 244
Tire pressure reached .................... 244
Tires
Aspect ratio (definition) ................. 272
Average weight of the vehicle
occupants (definition) .................... 270
Bar (definition) ............................... 270
Changing a wheel .......................... 272
Characteristics .............................. 270
Checking ........................................ 255
Curb weight (definition) ................. 271
Definition of terms ......................... 270
Direction of rotation ...................... 273
Display message ............................ 183
Distribution of the vehicle occu-
pants (definition) ............................ 272
DOT (Department of Transporta-
tion) (definition) ............................. 270
DOT, Tire Identification Number
(TIN) ............................................... 270
GAWR (Gross Axle Weight Rating)
(definition) ..................................... 271 GVW (Gross Vehicle Weight) (def-
inition) ........................................... 271
GVWR (Gross Vehicle Weight Rat-
ing) (definition) .............................. 271
Important safety notes .................. 254
Increased
vehi
cle weight due to
optional equipment (definition) ...... 271
Information on driving .................... 254
Kilopascal (kPa) (definition) ........... 271
Labeling (overview) ........................ 267
Load bearing index (definition) ...... 272
Load index ..................................... 269
Load index (definition) ................... 271
Maximum load on a tire (defini-
tion) ............................................... 271
Maximum loaded vehicle weight
(definition) ..................................... 271
Maximum permissible tire pres-
sure (definition) ............................. 271
Maximum tire load ......................... 269
Maximum tire load (definition) ....... 271
Optional equipment weight (defi-
nition) ............................................ 272
PSI (pounds per square inch) (def-
inition) ........................................... 272
Replacing ....................................... 272
Service life ..................................... 255
Sidewall (definition) ....................... 272
Speed rating (definition) ................ 271
Storing ........................................... 273
Structure and characteristics
(definition) ..................................... 270
Summer tires in winter .................. 256
Temperature .................................. 267
TIN (Tire Identification Number)
(definition) ..................................... 272
Tire bead (definition) ...................... 272
Tire pressure (definition) ................ 272
Tire pressures (recommended) ...... 271
Tire size (data) ............................... 277
Tire size designation, load-bearing
capacity, speed rating .................... 267
Tire tread ....................................... 255
Tire tread (definition) ..................... 272
Total load limit (definition) ............. 272
Traction ......................................... 266
Traction (definition) ....................... 272
Tread wear ..................................... 266
Index17

Uniform Tire Quality Grading
Standards ...................................... 266
Uniform Tire Quality Grading
Standards (definition) .................... 271
Wear indicator (definition) .............272
Wheel and tire combination ........... 277
Wheel rim (definition) .................... 271
see Flat tire
Touchpad
Changing the station/music
track .............................................. 203
Character suggestions ................... 202
Deleting characters ....................... 202
Entering a space ............................ 202
Entering characters ....................... 202
Gesture control .............................. 202
Handwriting recognition ................ 202
Operating the touchpad ................. 202
Overview ........................................ 202
Quick access for Audio .................. 203
Switching ....................................... 202
Switching input line ....................... 202
Tow-starting
Emergency engine starting ............ 252
Towing away
Important safety guidelines ........... 250
Installing the towing eye ................ 251
Removing the towing eye ...............2 51
Transporting the vehicle ................ 252
With both axles on the ground ....... 251
Towing eye ......................................... 241
Traffic reports
see also Digital Operator's Man-
ual ..................................................2 00
Transmission
Driving tips ....................................1 11
Selector lever ................................ 109
see Automatic transmission
Transmission position display ......... 110
Transmission positions .................... 111
Transporting the vehicle .................. 252
Trim pieces (cleaning instruc-
tions) ..................................................2 39
Trip computer (on-board com-
puter) ..................................................1 54
Trip odometer
Calling up ....................................... 153 Resetting (on-board computer) ...... 154
Trunk load (maximum) ......................286
Trunk partition .................................. 211
Turn si
gnals
Display message ............................ 177
Switching on/off .............................. 87
Two-way radio
Frequencies ................................... 279
Installation ..................................... 279
Transmission output (maximum) .... 279
Type identification plate
see Vehicle identification plate
U
UnlockingEmergency unlocking ....................... 68
From inside the vehicle (central
unlocking button) .............................6 7
USB devices
Connecting to the Media Inter-
face .............................................. .208
V
Vanity mirror (in the sun visor) ........213
Vehicle
Correct use ...................................... 25
Data acquisition ............................... 26
Display message ............................ 185
Electronics ..................................... 279
Equipment ....................................... 22
Individual settings .......................... 160
Limited Warranty .............................2 6
Loading .......................................... 263
Locking (in an emergency) ............... 68
Locking (SmartKey) .......................... 60
Lowering ........................................ 277
Maintenance .................................... 23
Operating safety .............................. 24
Parking .......................................... 119
Parking for a long period ................ 122
Pulling away ................................... 104
Raising ........................................... 274
Reporting problems ......................... 25
Securing from rolling away ............ 273
Towing away .................................. 250
Transporting .................................. 252
18Index

You should pay special attention to road condi-
tions when temperatures are around freezing
point.
Mercedes-Benz recommends a minimum tread
depth ofãin (4 mm) on all four winter tires.
Observe the legally required minimum tire tread
depth (
Ypage 255). Winter tires can reduce the
braking distance on snow-covered surfaces in
comparison with summer tires. The braking dis-
tance is still much further than on surfaces that
are not icy or covered with snow. Take appro-
priate care when driving.
Further information on winter tires (M+S tires)
(
Ypage 256).
Temperature
GWARNING
The temperature grade for this tire is estab-
lished for a tire that is properly inflated and
not overloaded. Excessive speed, underinfla-
tion, or excessive loading, either separately or
in combination, can cause excessive heat
build-up and possible tire failure.
The temperature grades are A (the highest), B,
and C, representing the tire's resistance to the
generation of heat and its ability to dissipate
heat when tested under controlled conditions
on a specified indoor laboratory test wheel. Sus-
tained high temperature can cause the material
of the tire to degenerate and reduce tire life, and
excessive temperature can lead to sudden tire
failure. The grade C corresponds to a level of
performance which all passenger car tires must
meet under the Federal Motor Vehicle Safety
Standard No. 109. Grades B and A represent
higher levels of performance on the laboratory
test wheel than the minimum required by law.
Tire labeling
Overview
:Uniform Tire Quality Grading Standard
(Ypage 271)
;DOT, Tire Identification Number
(Ypage 270)
=Maximum tire load (Ypage 269)
?Maximum tire pressure (Ypage 259)
AManufacturer
BTire material (Ypage 270)
CTire size designation, load-bearing capacity
and speed rating (Ypage 267)
DLoad index (Ypage 269)
ETire name
The markings described above are on the tire in
addition to the tire name (sales designation) and
the manufacturer's name.
iTire data is vehicle-specific and may deviate
from the data in the example.
Tire size designation, load-bearing
capacity and speed rating
GWARNING
Exceeding the stated tire load-bearing capa-
city and the approved maximum speed could
lead to tire damage or the tire bursting. There is a risk of accident.
Therefore, only use tire types and sizes
approved for your vehicle model. Observe the
All about wheels and tires267
Wheels and tires
Z

Uniform Tire Quality Grading Standards
A uniform standard to grade the quality of tires
with regards to tread quality, tire traction and
temperature characteristics. The quality grad-
ing assessment is made by the manufacturer
following specifications from the U.S. govern-
ment. The ratings are molded into the sidewall ofthe tire.
Recommended tire pressures
The recommended tire pressure applies to the
tires mounted at the factory.
The Tire and Loading Information placard con-
tains the recommended tire pressures for cold
tires on a fully loaded vehicle and for the maxi-
mum permissible vehicle speed.
The tire pressure table contains the recommen-
ded pressures for cold tires for various operat-
ing conditions, i.e. differing load and speed con-
ditions.
Increased vehicle weight due to optional
equipment
The combined weight of all standard and
optional equipment available for the vehicle,
regardless of whether it is actually installed on
the vehicle or not.
Rim
This is the part of the wheel on which the tire is
mounted.
GAWR (Gross Axle Weight Rating)
The GAWR is the maximum gross axle weight
rating. The actual load on an axle must never
exceed the gross axle weight rating. The gross
axle weight rating can be found on the vehicle
identification plate on the B-pillar on the driver's
side.
Speed rating
The speed rating is part of the tire identification.
It specifies the speed range for which the tire is
approved.
GVW (Gross Vehicle Weight)
The gross vehicle weight includes the weight of
the vehicle including fuel, tools, the spare wheel,
accessories installed, occupants, luggage and
the drawbar noseweight, if applicable. The gross
vehicle weight must not exceed the gross vehi-
cle weight rating GVWR as specified on the vehi-
cle identification plate on the B-pillar on the
driver's side.
GVWR (Gross Vehicle Weight Rating)
The GVWR is the maximum permissible gross
weight of a fully loaded vehicle (the weight of the
vehicle including all accessories, occupants,
fuel, luggage and the drawbar n
oseweight, if
applicable). The gross vehicle weight rating is
specified on the vehicle identification plate on
the B-pillar on the driver's side.
Maximum loaded vehicle weight
The maximum weight is the sum of:
Rthe curb weight of the vehicle
Rthe weight of the accessories
Rthe load limit
Rthe weight of the factory installed optional
equipment
Kilopascal (kPa)
Metric unit for tire pressure. 6.9 kPa corre-
sponds to 1 psi. Another unit for tire pressure is
bar. 100 kilopascals (kPa) are the equivalent of
1 bar.
Load index
In addition to the load-bearing index, the load
index may also be imprinted on the sidewall of
the tire. This specifies the load-bearing capacity
more precisely.
Curb weight
The weight of a vehicle with standard equipment
including the maximum capacity of fuel, oil and
coolant. It also includes the air-conditioning sys-
tem and optional equipment if these are instal-
led in the vehicle, but does not include passen-
gers or luggage.
Maximum load rating
The maximum tire load is the maximum permis-
sible weight in kilograms or lbs for which a tire is
approved.
Maximum permissible tire pressure
Maximum permissible tire pressure for one tire.
Maximum load on one tire
Maximum load on one tire. This is calculated by dividing the maximum axle load of one axle by
two.
All about wheels and tires271
Wheels and tires
Z