Replacin
g ...................................... .429
Service life ..................................... 408
Sidewall (definition) ....................... 428
Speed rating (definition) ................ 427
Storing .......................................... .430
Structure and characteristics
(definition) ..................................... 426
Temperature .................................. 422
TIN (Tire Identification Number)
(definition) ..................................... 428
Tire bead (definition) ..................... .428
Tire pressure (definition) ................ 428
Tire pressures (recommended) ...... 427
Tire size (data) ............................... 434
Tire size designation, load-bearing capacity, speed rating .................... 423
Tire tread ....................................... 407
Tire tread (definition) ..................... 428
Total load limit (definition) ............. 429
Traction ......................................... 422
Traction (definition) ....................... 428
Tread wea r..................................... 422
TWR (permissible trailer drawbar
noseweight) (definition) ................. 428
Uniform Tire Quality Grading
Standards ...................................... 421
Uniform Tire Quality Grading
Standards (definition) .................... 427
Wear indicator (definition) ............. 429
Wheel and tire combination ........... 436
Wheel rim (definition) .................... 427
see Flat tire
Tool
see Vehicle tool kit
Top Tether ............................................ 64
Towing a trailer Active Parking Assist ..................... 232
Axle load, permissibl e.................... 459
Cleaning the trailer tow hitch ......... 382
Coupling up a traile r...................... 267
Decoupling a traile r....................... 269
Driving tips .................................... 265
ESP ®
(Electronic Stability Pro-
gram) ............................................... 75
Important safety notes .................. 264
Installing the ball coupling ............. 266
Mounting dimensions .................... 458 Power supply ................................. 271
Pulling away with a traile
r.............. 171
Removing the ball coupling ............ 270
Storing the ball coupling ................ 270
Trailer drive progra m..................... 257
Trailer load s................................... 459
Towing away
Important safety guidelines ........... 399
Installing the towing eye ................ 400
Removing the towing eye ............... 401
With both axles on the ground ....... 401
With the rear axle raised ................ 401
Tow-starting
Emergency engine starting ............ 402
Important safety notes .................. 399
Trailer coupling
see Towing a trailer
Trailer loads and drawbar nose-
weights ............................................... 270
Trailer towing Active Blind Spot Assist ................. 252
Active Lane Keeping Assist ............ 255
Blind Spot Assist ............................ 247
PARKTRONIC ................................. 227
Permissible trailer loads and
drawbar noseweights ..................... 270
Transfer case ..................................... 185
Transmission see Automatic transmission
Transmission position display ......... 176
Transmission position display
(DIRECT SELECT lever) ...................... 176
Transporting the vehicle .................. 401
Traveling uphill Brow of hill ..................................... 203
Driving downhill ............................. 203
Maximum gradient-climbing capa-
bility ............................................... 203
Trim pieces (cleaning instruc-
tions) .................................................. 384
Trip computer (on-board com-
puter) .................................................. 277
Trip odometer Calling up ....................................... 277
Resetting (on-board computer) ...... 278
Trunk
see Tailgate Index
21
X
Pull the center head restraint on the rear
bench seat into the uppermost position
(Y page 108).
X Slide release catch 0043to the left and swing
flap 0044to the left until it is lying on the rear
side of the rear bench seat. X
Push cover 0087forward until it is lying on the
rear seat armrest. Cargo compartment enlargement
Important safety notes G
WARNING
If the rear bench seat/rear seat and seat
backrest are not engaged they could fold for- wards, e.g. when braking suddenly or in the
event of an accident.
R The vehicle occupant would thereby be
pushed into the seat belt by the rear bench
seat/rear seat or by the seat backrest. The
seat belt can no longer offer the intended
level of protection and could even cause
injuries.
R Objects or loads in the trunk/cargo com-
partment cannot be restrained by the seat
backrest.
There is an increased risk of injury.
Before every trip, make sure that the seat
backrests and the rear bench seat/rear seat
are engaged.
! Release and fold the seat cushion
upwards before folding the rear bench seat forward. Otherwise, the backrests may be
damaged.
When the backrest is folded forwards, the
front seats cannot be moved to their rear-
most position. Otherwise, the front seats
and the rear bench seat could be damaged.
Observe the loading guidelines (Y page 342).
The left-hand and right-hand backrests in the
second row of seats can be folded forwards
separately to increase the cargo compart-
ment capacity.
On vehicles with a 3rd row of seats, you must
fold down the 3rd row of seats beforehand
(Y page 111) to obtain maximum cargo com-
partment enlargement.
Folding the rear bench seat forwards !
The backrest is heavy. Therefore, take
care when folding it down. Make sure that
the head restraints are pushed all the way
in so that the backrests and seat cushions
are not damaged. i
If the driver's or front-passenger seat is
set for a larger person, it may not be pos-
sible to fold the rear bench seat forwards.
In this case, move the front seats as far
forward as possible.
X Move the head restraints to the lowest
position (Y page 110).
X Pull release loop 0043of seat cushion 0044.
X Fold seat cushion 0044upwards. 346
Stowage areasStowage and features
R
Always stow objects so that they cannot be
thrown around in such situations.
R Always make sure that objects do not pro-
trude from stowage spaces, parcel nets or
stowage nets.
R Close the lockable stowage spaces while
driving.
R Stow and secure objects that are heavy,
hard, pointy, sharp-edged, fragile or too
large in the cargo compartment.
Observe the loading guidelines (Y page 342).
! Only use the cup holders for containers of
the right size and which have lids. The
drinks could otherwise spill.
Do not keep the KEYLESS-GO key in the tem-
perature-controlled cup holder (Y page 351).
Otherwise, the KEYLESS-GO key will not be
recognized.
The stowage compartments in the doors pro- vide space for bottles with a capacity of up to
34 fl. oz. (1.0 l).
The bottles are not secured or prevented from
tipping over. Therefore, do not place any open
drink containers in the stowage compart-
ments.
Cup holder in the front-compartment
center console 0043
Cup holder
0044 Cover X
To open: slide cover 0044to its foremost
position.
X To close: pull cover 0044back as far as it will
go.
You can remove the cup holder's rubber mat
for cleaning. Clean with clear, lukewarm
water only.
Temperature-controlled cup holder in
the front-compartment center console 0043
Cup holder
0044 Residual heat indicator lamp
0087 Switch
The temperature-controlled cup holder can
be used to keep cold drinks cool and warm
drinks warm. X Turn the SmartKey to position 2in the igni-
tion lock.
X To switch on the cooling function: press
and hold button 0087until the blue indicator
lamp on the button lights up.
X To switch on the heating function: press
and hold button 0087until the red indicator
lamp on the button lights up.
X To switch off the function: press and hold
button 0087until the indicator lamp on the
button goes out.
When the heating function is used, the metal insert of the cup holder is heated. Once a cer-
tain temperature is reached, residual heat
indicator lamp 0044lights up. This means that
the metal insert of the cup holder is hot. For
this reason, you must not reach into the cup
holder metal insert. Features
351Stowage an d features Z
006B
Wheel bolts
006C Towing eye
X Lift the cargo compartment floor up
(Y page 349). Flat tire
Preparing the vehicle
Your vehicle may be equipped with: R MOExtended tires (tires with run-flat prop-
erties) (Y page 389)
Vehicle preparation is not necessary on
vehicles with MOExtended tires.
R a TIREFIT kit (Y page 388)
R an emergency spare wheel (only for certain
countries) (Y page 440)
Information on changing/mounting a wheel
(Y page 429).
X Stop the vehicle on solid, non-slippery and
level ground, as far away as possible from
traffic.
X Switch on the hazard warning lamps.
X Secure the vehicle against rolling away
(Y page 190).
X If possible, bring the front wheels into the
straight-ahead position.
X Vehicles with the ON&OFFROAD pack-
age: make sure that highway level is selec-
ted (Y page 214).
X Vehicles with the ON&OFFROAD pack-
age: make sure that highway level is selec-
ted (Y page 214).
X Switch off the engine.
X Vehicles without KEYLESS-GO: remove
the SmartKey from the ignition lock.
X Vehicles with KEYLESS-GO: open the
driver's door.
The on-board electronics now have status
0. This is the same as the SmartKey having
been removed. X
Vehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(Y page 167).
X All occupants must get out of the vehicle.
Make sure that they are not endangered as
they do so.
X Make sure that no one is near the danger
area while a wheel is being changed. Any-
one who is not directly assisting in the
wheel change should, for example, stand
behind the barrier.
X Get out of the vehicle. Pay attention to traf-
fic conditions when doing so.
X Close the driver's door.
X Unload heavy luggage.
i Only operate the tire inflation compressor
using a 12 V socket, even if the ignition is
turned off (Y page 354).
An emergency cut-out ensures that the on- board voltage does not drop too low. If the on-board voltage is too low, the power to
the sockets is automatically cut. This
ensures that there is sufficient power to
start the engine. MOExtended tires (tires with run-flat
properties)
General notes With MOExtended tires (tires with run flat
characteristics), you can continue to drive
your vehicle even if there is a total loss of
pressure in one or more tires. The affected
tire must not show any clearly visible damage.
You can recognize MOExtended tires by the
MOExtended marking which appears on the
sidewall of the tire. You will find this marking
next to the tire size designation, the load-
bearing capacity and the speed index
(Y page 423).
MOExtended tires may only be used in con-
junction with an active tire pressure loss
warning system or with an active tire pressure
monitor. Flat tire
389Breakdown assistance
permissible gross vehicle weight rating for
your vehicle on the Tire and Loading Infor-
mation placard. Number of seats
Maximum number of seats
0043indicates the
maximum number of occupants allowed to
travel in the vehicle. This information can be
found on the Tire and Loading Information
placard.
i The specifications shown on the Tire and
Loading Information placard in the illustra-
tion are examples. The number of seats is
vehicle-specific and can differ from the
details shown. The number of seats in your vehicle can be found on the Tire and Load-
ing Information placard. Determining the correct load limit
Step-by-step instructions The following steps have been developed as
required of all manufacturers under Title 49,
Code of U.S. Federal Regulations, Part 575
pursuant to the "National Traffic and Motor
Vehicle Safety Act of 1966".
X Step 1: Locate the statement "The com-
bined weight of occupants and cargo
should never exceed XXX kg or XXX lbs." on your vehicle’s Tire and Loading Information
placard.
X Step 2: Determine the combined weight of
the driver and passengers that will be riding
in your vehicle.
X Step 3: Subtract the combined weight of
the driver and passengers from XXX kilo-
grams or XXX lbs.
X Step 4: The resulting figure equals the
available amount of cargo and luggage load capacity. For example, if the "XXX" amount
equals 1,400 lbs and there will be five
150 lbs passengers in your vehicle, the
amount of available cargo and luggage load
capacity is 650 lbs (1,400 - 750 (5 x 150) = 650 lbs).
X Step 5: Determine the combined weight of
luggage and cargo being loaded on the
vehicle. That weight may not safely exceed
the available cargo and luggage load capa- city calculated in step 4. Loading the vehicle
419Wheels and tires Z
Tire labeling
Overview 0043
Uniform Tire Quality Grading Standard
(Ypage 427)
0044 DOT, Tire Identification Number
(Ypage 426)
0087 Maximum tire load (Y page 425)
0085 Maximum tire pressure (Y page 412)
0083 Manufacturer
0084 Tire material (Y page 426)
006B Tire size designation, load-bearing capa-
city and speed index (Y page 423)
006C Load index (Y page 425)
006D Tire name
The markings described above are on the tire in addition to the tire name (sales designa-
tion) and the manufacturer's name.
i Tire data is vehicle-specific and may devi-
ate from the data in the example.
Tire size designation, load-bearing
capacity and speed rating G
WARNING
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
tire load rating and speed rating required for
your vehicle. 0043
Tire width
0044 Nominal aspect ratio in %
0087 Tire code
0085 Rim diameter
0083 Load bearing index
0084 Speed rating
General: depending on the manufacturer's
standards, the size imprinted in the tire wall
may not contain any letters or may contain
one letter that precedes the size description.
If there is no letter preceding the size descrip-
tion (as shown above): these are passenger
vehicle tires according to European manufac-
turing standards.
If "P" precedes the size description: these are
passenger vehicle tires according to U.S.
manufacturing standards.
If "LT" precedes the size description: these
are light truck tires according to U.S. manu-
facturing standards.
If "T" precedes the size description: these are compact emergency spare wheels at high tire
pressure, to be used only temporarily in an
emergency.
Tire width: tire width0043shows the nominal
tire width in millimeters.
Height-width ratio: aspect ratio0044is the
size ratio between the tire height and tire
width and is shown in percent. The aspect All about
wheels and tires
423Wheels and tires Z
ratio is calculated by dividing the tire width by
the tire height.
Tire code: tire code0087specifies the tire type.
"R" represents radial tires; "D" represents
diagonal tires; "B" represents diagonal radial
tires.
Optionally, tires with a maximum speed of
over 149 mph (240 km/h) may have "ZR" in
the size description, depending on the man-
ufacturer (e.g. 245/40 ZR 18).
Rim diameter: rim diameter0085is the diam-
eter of the bead seat, not the diameter of the
rim flange. The rim diameter is specified in
inches (in).
Load-bearing index: load-bearing index0083
is a numerical code that specifies the maxi-
mum load-bearing capacity of a tire.
Do not overload the tires by exceeding the
specified load limit. The maximum permissi-
ble load can be found on the vehicle's Tire and Loading Information placard on the B-pillar onthe driver's side (Y page 418).
Example:
Load-bearing index 91 indicates a maximum
load of 1,356 lb (615 kg) that the tires can
bear. For further information on the maximum
tire load in kilograms and lbs, see
(Y page 425).
For further information on the load bearing
index, see "Load index" (Y page 425).
Speed rating: speed rating0084specifies the
approved maximum speed of the tire.
i Tire data is vehicle-specific and may devi-
ate from the data in the example.
Regardless of the speed rating, always
observe the speed limits. Drive carefully and
adapt your driving style to the traffic condi-
tions.
Summer tires Index Speed rating
Q up to 100 mph (160 km/h)
R up to 106 mph (170 km/h) Index Speed rating
S up to 112 mph (180 km/h)
T up to 118 mph (190 km/h)
H up to 130 mph (210 km/h)
V up to 149 mph (240 km/h)
W up to 168 mph (270 km/h)
Y up to 186 mph (300 km/h)
ZR...Y up to 186 mph (300 km/h)
ZR...(..Y) over 186 mph (300 km/h)
ZR over 149 mph (240 km/h)
R
Optionally, tires with a maximum speed of
over 149 mph (240 km/h) may have "ZR" in the size description, depending on the
manufacturer (e.g. 245/40 ZR18).
The service specification is made up of
load-bearing index 0083and speed rating 0084.
R If the size description of your tire includes
"ZR" and there are no service specifica-
tions, ask the tire manufacturer in order to
find out the maximum speed.
If a service specification is available, the
maximum speed is limited according to the
speed rating in the service specification.
Example: 245/40 ZR18 97 Y.In this exam-
ple, "97 Y" is the service specification. The letter "Y" represents the speed rating. The
maximum speed of the tire is limited to
186 mph (300 km/h).
R The size description for all tires with maxi-
mum speeds of over 186 mph (300 km/h)
must include "ZR", andthe service specifi-
cation must be given in parentheses. Exam- ple: 275/40 ZR 18 (99 Y). Speed rating
"(Y)" indicates that the maximum speed of
the tire is over 186 mph (300 km/h). Ask
the tire manufacturer about the maximum
speed. 424
All about wheels and tiresWheels and tires
the tire. This specifies the load-bearing capa-
city more precisely.
Curb weight
The weight of a vehicle with standard equip-
ment including the maximum capacity of fuel,
oil and coolant. It also includes the air-condi- tioning system and optional equipment if
these are installed in the vehicle, but does notinclude passengers or luggage.
Maximum load rating
The maximum tire load is the maximum per-
missible 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.
PSI (pounds per square inch)
A standard unit of measure for tire pressure.
Aspect ratio
Relationship between tire height and tire
width in percent.
Tire pressure
This is pressure inside the tire applying an
outward force to each square inch of the tire's surface. The tire pressure is specified in
pounds per square inch (psi), in kilopascal
(kPa) or in bar. The tire pressure should only
be corrected when the tires are cold.
Cold tire pressure
The tires are cold:
R if the vehicle has been parked without
direct sunlight on the tires for at least three
hours and
R if the vehicle has been driven for less than
1 mile (1.6 km). Tread
The part of the tire that comes into contact
with the road.
Bead
The tire bead ensures that the tire sits
securely on the wheel. There are several steel
wires in the bead to prevent the tire from
coming loose from the wheel rim.
Sidewall
The part of the tire between the tread and the bead.
Weight of optional extras
The combined weight of those optional extras
that weigh more than the replaced standard
parts and more than 2.3 kilograms (5 lbs).
These optional extras, such as high-perform-
ance brakes, level control, a roof rack or a
high-performance battery, are not included in the curb weight and the weight of the acces-
sories.
TIN (Tire Identification Number)
This is a unique identifier which can be used
by a tire manufacturer to identify tires, for
example for a product recall, and thus identify
the purchasers. The TIN is made up of the
manufacturer's identity code, tire size, tire
type code and the manufacturing date.
Load bearing index
The load bearing index (also load index) is a
code that contains the maximum load bearing capacity of a tire.
Traction
Traction is the result of friction between the
tires and the road surface.
TWR (Tongue Weight Rating)
The TWR specifies the maximum permissible
weight that the ball coupling of the trailer tow
hitch can support. 428
All about
wheels and tiresWheels and tires