
Useful information
This Operator's Manual describes all models
as well as standard and optional equipment
of your vehicle that were available at the time
of going to print. Country-specific variations
are possible. Note that your vehicle may not
be equipped with all of the described func-
tions. This also applies to systems and func-
tions relevant to safety.
Read the information on qualified specialist
workshops (Y page 26). Where will I find...?
Vehicle tool kit
General notes The vehicle tool kit is in the stowage com-
partment in the footwell on the co-driver's
side.
The vehicle tool kit consists of:
R a towing eye
R a screwdriver with Torx, Phillips and slotted
bits
If your vehicle is equipped with a spare wheel
bracket and a jack, the vehicle tool kit addi-
tionally contains:
R a wheel wrench
R a spanner
R a pump lever rod
Stowage compartment in the co-driv-
er's footwell Unlocking and removing the cover
X
Turn quick-release fastener 0043counter-
clockwise or clockwise 0048.
X Slightly raise and pull out the cover. Removing the vehicle tool kit and the jack
X
Remove vehicle tool kit 0083.
X Pull up quick-release lever 0087and unhook
the retaining strap of jack 0085.
X Lift jack 0085upwards out of the holder.
i When stowing away the jack, place it in
the holder as shown in the illustration.
Make sure that the retaining strap of the
jack is hooked in and tensioned.
Inserting and engaging the cover
X Slide in the cover and fold it down.
X Press down quick-release fastener 0043until
it engages. 276
Where will I find...?Breakdown assistance

Tire pressure plate
Tire pressure plate
The tire pressure table is located on the
B-pillar on the driver's side of the vehicle
(Y page 298).
The tire pressure table contains recom-
mended tire pressures 0043for cold tires. Rec-
ommended tire pressures 0043apply to the
maximum permissible load and up to the max-
imum permissible speed of the vehicle. Important notes on tire pressure
G
WARNING
If the tire pressure drops repeatedly, the
wheel, valve or tire may be damaged. Tire
pressure that is too low may result in a tire
blow-out. There is a risk of an accident.
R Check the tire for foreign objects.
R Check whether the wheel is losing air or the
valve is leaking.
If you are unable to rectify the damage, con-
tact a qualified specialist workshop.
Use a suitable pressure gauge to check the
tire pressure. The outer appearance of a tire
does not permit any reliable conclusion about
the tire pressure. On vehicles equipped with
the electronic tire pressure monitor, the tire
pressure can be checked using the on-board
computer. The tire temperature and pressure increase
when the vehicle is in motion. This is depend-
ent on the driving speed and the load.
Therefore, you should only correct tire pres-
sure when the tires are cold.
The tires are cold:
R
if the vehicle has been parked for at least
three hours without direct sunlight on the
tires, and
R if the vehicle has not been driven further
than 1 mile (1.6 km)
Tire temperature changes depending on the
ambient temperature, driving speed and tire
load. If the tire temperature changes by
18 ‡ (10 †),the tire pressure changes by
approximately 10 kPa (0.1 ba r/1.5 psi). Take
this into account when checking the pressure
of warm tires. Only correct the tire pressure
if it is too low for the current operating con-
ditions. If you check the tire pressure when
the tires are warm, it results in a higher value
than when the tires are cold. This is normal.
Do not under any circumstances release the
air in order to adjust the pressure to the pre-
scribed value for cold tires. The tire pressure
would otherwise be too low.
Observe the recommended tire pressures for
cold tires:
R on the Tire and Loading Information plac-
ard 6
on the B-pillar on the driver's side or
R on the tire pressure table on the B-pillaron
the driver's side of the vehicle Underinflated or overinflated tires
Underinflated tires: G
WARNING
Tires with pressure that is too low can over-
heat and burst as a consequence. In addition,
they also suffer from excessive and/or irreg-
ular wear, which can severely impair the brak-
6 Only for vehicles with a gross weight of less than 10,000 lbs (4,536 kg). Tire pressure
291Wheels and tires
Z

notes on the recommended tire pressure
(Y
page 290).
The tire pressure monitor is not able to warn
you of a sudden loss of pressure, e.g. follow-
ing penetration by a foreign object. In this
event, brake the vehicle until it comes to a
standstill. Do not carry out any sudden steer-
ing maneuvers.
The tire pressure monitor has a yellow 0077
warning lamp in the instrument cluster for
indicating pressure loss/malfunctions (USA)
or pressure loss (Canada). Depending on how
the warning lamp flashes or lights up, an
underinflated tire or a malfunction in the tire
pressure monitor is displayed:
R if the 0077 warning lamp is lit continuously,
the tire pressure on one or more tires is
significantly too low. The tire pressure mon-
itor is not malfunctioning.
R USA only: if the 0077warning lamp flashes
for 60 seconds and then remains lit con-
stantly, the tire pressure monitor is mal-
functioning.
Only vehicles with steering wheel buttons: the
on-board computer displays information on
tire pressure. After a few minutes of driving,
the current tire pressure of each tire is shown
in the on-board computer.
USA only: if the tire pressure monitor is mal-
functioning, it may be more than 10 minutes
before the malfunction is shown. The 0077
tire pressure warning lamp flashes for
60 seconds and then remains lit. When the
malfunction has been rectified, the 0077tire
pressure warning lamp goes out after a few
minutes of driving.
The tire pressure values indicated by the on-
board computer may differ from those meas-
ured at a gas station with a pressure gauge.
The tire pressures shown by the on-board
computer refer to those measured at sea
level. At high altitudes, the tire pressure value
indicated by a pressure gauge are higher than
those shown by the on-board computer. In
this case, do not reduce the tire pressures. If radio transmitting equipment (e.g. wireless
headphones, two-way radios) is operated
inside the vehicle or in the vicinity of the vehi-
cle, this can interfere with the operation of
the tire pressure monitor.
Checking the tire pressure electroni-
cally (vehicles with steering wheel but-
tons) Tire pressure display
Using the steering wheel buttons
X
Turn the key to position 2in the ignition
lock.
X Press the 0080or007F button repeatedly
until the standard display is shown
(Y page 189).
X Press the 0041or0068 button repeatedly
until the current pressure of the individual
tires is shown in the display.
If the vehicle is parked for longer than
20 minutes or you then drive at less than
18 mph (30 km/h), the Tire pres. dis‐
Tire pres. dis‐
played after driving for several played after driving for several
minutes minutes message appears.
i The tire pressure value shown in the dis-
play may differ from those measured at a
gas station using a pressure gauge. The on-
board computer will generally give you a
more exact value.
Tire pressure loss warning system Vehicles with steering wheel buttons
If the tire pressure monitor detects a signifi-
cant pressure loss on one or more tires, the
on-board computer displays a warning mes-
sage. The 0077tire pressure loss warning 294
Tire pressureWheels and tires

lamp in the instrument cluster (Y
page 229)
lights up.
The tire pressure is shown in 2 red rectangles.
The pressure of the tire concerned is shown
in one of the two rectangles (Y page 199).
Additionally, a warning tone sounds.
Each tire that is affected by a significant loss
of pressure is highlighted in the pressure dis-
play.
Restarting the tire pressure monitor When you restart the tire pressure monitor,
the currently set tire pressure are taken as
reference values for monitoring.
In most cases, the tire pressure monitor
detects the new reference values automati-
cally, e.g. after you have:
R changed the tire pressure
R mounted
R mounted new wheels or tires
However, you can also define reference val-
ues manually as described here.
Before restarting the tire pressure moni-
tor:
X Set the tire pressure to the value recom-
mended on the Tire and Loading Informa-
tion placard or the tire pressure table on
the B-pillar on the driver's side
(Y page 290).
Observe the notes on tire pressure when
doing so (Y page 290).
X Make sure that the tire pressure is correct
on all four wheels. Restarting the tire pressure monitor
(vehicles without steering wheel but-
tons):
X
Turn the key to position 2in the ignition
lock.
X Press the 0079menu button on the instru-
ment cluster repeatedly until the display
shows the following message:
+CAL- TPMS
+CAL- TPMS
X Press the 0074button on the instrument clus-
ter.
The display shows:
OK TPMS OK TPMS
The tire pressure monitor activation proc-
ess has begun. The tire pressures meas-
ured for the individual wheels are stored as
the new reference values, provided that the
tire pressure monitor considers them to be
plausible.
If you wish to cancel the restart:
X Press the 0075button or the 0079menu button
on the instrument cluster.
The activation process is canceled auto-
matically if 30 seconds elapse without
input.
Restarting the tire pressure monitor
(vehicles with steering wheel buttons):
X Turn the key to position 2in the ignition
lock.
X Press the 0080or007F button on the steer-
ing wheel repeatedly until the standard dis-
play is shown ( Ypage 189).
X Press the 0041or0068 button on the steer-
ing wheel repeatedly until the current pres-
sure of the individual tires is displayed or
the display shows the following message:
Tire Tire pres.
pres. displayed
displayed after
afterdriving
driving
for several minutes
for several minutes
X Press the 0045reset button on the instru-
ment cluster.
The display shows the following message: Tire pressure
295Wheels and tires Z

0087
Maximum tire pressure (Y page 292)
0085 Manufacturer
0083 Tire material (Y page 304)
0084 Tire size designation, load-bearing capa-
city and speed index (Y page 302)
006B 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 index
and speed index 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
Design standard
0044 Tire width
0087 Nominal aspect ratio in %
0085 Tire code
0083 Rim diameter
0084 Load bearing index
006B Speed index General:
depending on the manufacturer's
standards, the size imprinted in the tire wall
may not contain any letters or may contain
one letter 0043that precedes the size descrip-
tion
If "LT" precedes the size description (as
shown above): these are light truck tires
according to U.S. manufacturing standards.
If "C" precedes the size description: these are
commercial motor vehicle tires according to
European manufacturing standards.
Tire width: tire width0044shows the nominal
tire width in millimeters.
Aspect ratio: aspect ratio0087is the size ratio
between the tire height and tire width and is
shown in percent. The aspect ratio is calcu-
lated by dividing the tire width by the tire
height.
Tire code: tire code0085specifies the tire type.
"R" represents radial tires. "D" represents
diagonal tires, "B" represents diagonal radial
tires.
Rim diameter: rim diameter0083is 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 index0084
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 on
the driver's side (Y page 298).
Example:
The load-bearing index 120 indicates a max-
imum load of 3,042 lb (1,380 kg) for the tire.
If two load-bearing capacity indices are speci-
fied (as shown above), the first number states
the load-bearing capacity for single tires, the
second number the load-bearing capacity for
twin tires. For further information on the max-
imum tire load in kilograms and pounds, see
(Y page 303). 302
What you should know about wheels and tiresWheels and tires

For further information on the load-bearing
index, see "Load index" (Y page 303).
Speed rating: speed rating006Bspecifies the
approved maximum speed of the tire.
Regardless of the speed index always observe
the speed limits. Drive carefully and adapt
your driving style to the traffic conditions.
i Tire data is vehicle-specific and may devi-
ate from the data in the example. Index Speed rating
F up to 50 mph (80 km/h)
G up to 56 mph (90 km/h)
J up to 62 mph (100 km/h)
K up to 68 mph (110 km/h)
L up to 74 mph (120 km/h)
M up to 80 mph (130 km/h)
N up to 87 mph (140 km/h)
P up to 93 mph (150 km/h)
Q up to 100 mph (160 km/h)
R over 106 mph (170 km/h)
i
Not all tires that have the M+S identifica-
tion offer the driving characteristics of win-
ter tires. In addition to the M+S marking,
winter tires also have the 004Dsnowflake
symbol on the tire wall. Tires with this mark-
ing fulfill the requirements of the Rubber
Manufacturers Association (RMA) and the
Rubber Association of Canada (RAC)
regarding the tire traction on snow. They
have been especially developed for driving
on snow.
Further information on the reading of tire
information can be obtained at any qualified
specialist workshop. Load index
In addition to the load-bearing index, load rat-
ing
0043may be imprinted after the letters that
identify speed rating on the sidewall of the tire
(Y page 302).
R If no specification is given: no text (as in the
example above), represents a standard
load (SL) tire
R XL or Extra Load: represents a reinforced
tire
R Light Load: represents a light load tire
R C, D, E: represents a load range that
depends on the maximum load that the tire
can carry at a certain pressure
i Tire data is vehicle-specific and may devi-
ate from the data in the example.
Maximum tire load Maximum tire load
0043is the maximum per-
missible weight for which the tire is approved.
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 What you should know about wheels and tires
303Wheels and tires Z

is bar. 100 kilopascals (kPa) are the equiva-
lent of 1 bar.
Load index
In addition to the load bearing index, a load
index can be stamped onto the sidewall of the
tire. It specifies the load-bearing capacity of
the tire more precisely.
Curb weight
The weight of a vehicle with standard equip-
ment including the maximum filling capacity
of fuel, oil, and coolant. It also includes the
air-conditioning system and optional equip-
ment if these are installed on the vehicle, but
does not include passengers or luggage.
Maximum tire load
The maximum tire load in kilograms or
pounds is the maximum weight 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)
Standard unit of measurement for tire pres-
sure.
Aspect ratio
Relationship between tire height and width in
percent.
Tire pressure
Pressure inside the tire applying an outward
force to every square inch of the tire's sur-
face. Tire pressure is specified in pounds per
square inch (psi), in kilopascal (kPa) or in bar.
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 for at least
three hours without direct sunlight on the
tires, and
R if the vehicle has not been driven further
than 1 mile (1.6 km)
Tire tread
The part of the tire that comes into contact
with the road.
Tire 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
tire 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 kg (5 lbs). These
optional extras, such as high-performance
brakes, level control, a roof rack or a high-
performance battery, are not included in the
curb weight and the weight of the accesso-
ries.
TIN (Tire Identification Number)
A unique identification number 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 composed
of the manufacturer identification code, tire
size, tire model code and 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. 306
What you should know about wheels and tiresWheels and tires

Diagram showing tire rotation for single and dual
tires
Single tires: if the tires are of identical
dimensions, you can rotate both wheels on
both the front and rear axles so that the tires'
original direction of rotation is maintained. On
unidirectional tires, an arrow on the sidewall
shows the prescribed direction of rotation of
the tire.
Twin rear tires: if the tires are of identical
dimensions, you can rotate the wheels on the
front axle and the inner wheels on the rear
axle in pairs such that the original direction of
tire rotation is retained. With unidirectional
tires, you may rotate the outside wheels at
the rear axle from one side to the other. Direction of rotation
Tires with a specified direction of rotation
have additional benefits, e.g. if there is a risk
of hydroplaning. You will only gain these ben-
efits if the correct direction of rotation is
observed.
An arrow on the sidewall of the tire indicates
its correct direction of rotation.
You may mount a spare wheel against the
direction of rotation. Observe the time
restriction on use as well as the speed limi-
tation specified on the spare wheel. Storing wheels
Store wheels that are not being used in a cool,
dry and preferably dark place. Protect the
tires from contact with oil, grease and fuel. Mounting a wheel
Vehicle preparation X
Stop the vehicle as far away as possible
from traffic and on a level, firm and non-slip
surface.
X If your vehicle poses a risk to approaching
traffic, switch on the hazard warning lamps.
X Apply the parking brake.
X Turn the front wheels to the straight-ahead
position.
X Move the selector lever of the automatic
transmission to position P.
X Switch off the engine.
X Passengers should leave the vehicle. Make
sure that the passengers are not endan-
gered as they do so.
X Make sure that no one is near the danger
area while the wheel is being changed. Any-
one who is not directly assisting in the
wheel change should, for example, stand
behind the barrier.
X Place the warning triangle or warning lamp
at a suitable distance.
Observe legal requirements.
X Secure the vehicle to prevent it from rolling
away.
i Observe the safety notes on parking in the
section on "Driving and parking"
(Y page 151).
X On level terrain: place chocks or other
suitable objects under the front and rear of
the wheel that is diagonally opposite the
wheel to be changed.
X On slight inclines: place chocks or other
suitable objects under the wheels on the
front and rear axles opposite the wheel to
be changed. 308
Changing wheelsWheels and tires