tire size MERCEDES-BENZ B-CLASS SPORTS 2014 Owners Manual

Labeling (overview)
........................329
Load bearing index (definition) ......335
Load index ..................................... 332
Load index (definition) ...................334
M+S tires ....................................... 314
Maximum loaded vehicle weight
(definition) ..................................... 334
Maximum loa donatire (definition) 334
Maximum permissible tire
pressure (definition) ....................... 334
Maximum tire loa d......................... 327
Maximum tire loa d(definition) .......334
MOExtended tires ..........................314
Optional equipment weight
(definition) ..................................... 335
PSI (pounds per square inch)
(definition) ..................................... 334
Replacing ....................................... 336
Service life ..................................... 314
Sidewall (definition) .......................335
Speed rating (definition) ................334
Storing ........................................... 336
Structure and characteristics
(definition) ..................................... 333
Summer tires ......................... 160, 314
Temperature .................................. 329
TIN (Tire Identification Number)
(definition) ..................................... 335
Tire bea d(definition) ...................... 335
Tire pressure (definition) ................335
Tire pressure s(recommended )...... 333
Tire size (data) ............................... 340
Tire size designation, load-bearing
capacity, spee drating .................... 330
Tire tread ....................................... 313
Tire tread (definition) .....................335
Total loa dlimit (definition) .............335
Traction ......................................... 328
Traction (definition) .......................335
Trea dwear ..................................... 328
Uniform Tire Quality Grading
Standard s...................................... 328
Uniform Tire Quality Grading
Standard s(definition) .................... 333
Unladen weight (definition) ............334
Wea rindicato r(definition) .............335
Whee lrim (definition ).................... 333
see Flat tire Top Tether
............................................ 60
Towing Important safety guidelines ...........305
Installing the towing eye. ...............306
Removing the towing eye. ..............306
Towing away
With both axle sonthe ground .......307
With front axle raised ..................... 307
Tow-starting
Emergency engine starting ............308
Important safety notes ..................305
Installing the towing eye. ...............306
Removing the towing eye. ..............306
Transmission
see Automatic transmission
Transmission position display .........144
Transporting the vehicle ..................307
Trim pieces (cleaning instructions) .290
Trip computer (on-board computer) 194
Trip odometer Calling up ....................................... 193
Resetting (on-board computer) ......195
Trunk
see Tailgate
Turn signals
Changing bulbs (front) ...................114
Changing bulbs (rear) ....................115
Display message ............................ 220
Switching on/off ........................... 106
Type identification plate
see Vehicle identification plate U
Unlocking Emergency unlocking .......................81
From insid ethe vehicle (central
unlocking button) ............................. 80 V
Vanity mirror (in the sun visor) ........263
Vehicle Correct use ...................................... 25
Data acquisition ............................... 26
Equipment ....................................... 22
Individua lsettings .......................... 202
Limited Warranty ............................. 2618
Index

Loading
.......................................... 323
Locking (in an emergency) ...............81
Locking (SmartKey) .......................... 74
Lowering ........................................ 339
Maintenance .................................... 22
Parking for along period ................ 155
Pulling away ................................... 138
Raising ........................................... 337
Reporting problems .........................25
Securing from rolling away ............337
Towing away .................................. 305
Tow-starting ................................... 305
Transporting .................................. 307
Unlocking (in an emergency) ...........81
Unlocking (SmartKey) ......................74
Vehicle data ................................... 353
Vehicle data ....................................... 353
Vehicle dimensions ...........................353
Vehicle emergency locking ................81
Vehicle identification number see VIN
Vehicle identification plate ..............346
Vehicle tool kit .................................. 294
Video (DVD) ........................................ 197
VIN ...................................................... 346W
Warning and indicator lamps ABS ................................................ 239
Brakes ........................................... 239
Check Engine ................................. 245
Coolant .......................................... 245
Distance warning ........................... 247
DISTRONI CPLUS ........................... 247
ESP ®
.............................................. 241
ESP ®
OFF ....................................... 242
Fuel tank ........................................ 245
Overview .......................................... 32
PASSENGER AIR BAG OFF
indicator lamp .................................. 47
Reserve fuel ................................... 245
Seat bel t........................................ 237
SRS ................................................ 244
Tire pressure monitor ....................248
Warranty ............................................ 346
Washer fluid Display message ............................ 236Whee
lboltt ightening torque ...........339
Whee lchock ...................................... 337
Wheels Changing awheel .......................... 336
Checking ........................................ 313
Cleaning ......................................... 287
Cleaning (warning) .........................336
Emergency spare wheel .................342
Important safety notes ..................312
Interchanging/changing ................336
Mounting anew wheel ................... 339
Mounting awheel .......................... 337
Removing awheel .......................... 339
Storing ........................................... 336
Tightening torqu e........................... 339
Whee lsize/tir esize ....................... 340
Windo wcurtain air bag
Display message ............................ 217
Operation ........................................ .47
Windows
see Side windows
Windshield
Defrosting ...................................... 130
Windshiel dwasher system
Adding washer fluid .......................284
Notes ............................................. 352
Windshiel dwipers
Display message ............................ 236
Problem (malfunction) ...................120
Rea rwindow wiper ........................ 118
Replacing the wiper blades ............118
Switching on/off ........................... 117
Winte rdriving
Slippery roa dsurface s................... 160
Snow chains .................................. 315
Winte roperation
General notes ................................ 314
Winte rtires
M+S tires ....................................... 314
Wiper blades
Cleaning ......................................... 288
Important safety notes ..................118
Replacing (rea rwindow) ................ 119
Replacing (windshield )................... 118
Wooden trim (cleaning instructions) 290
Workshops see Qualified specialist workshop Index
19

X
Open the tailgate.
X Lift the cargo compartment floor up
(Y page 259).
i Towing eye 0010is located under tire
inflation compressor 001A.
Vehiclesw ithatire-change tool kit X
Open the tailgate.
X Lift the carg ocompartmen tfloor up
(Y page 259).
X Remove the tire-change too lkit.
The tire-chang etoolkit contains:
R Jack
R Lug wrench
R One pair of gloves
R Foldin gwheel chock Flat tire
Preparing th
evehicle
Your vehicle may be equipped with:
R MOExtende dtires (tires with run-flat
properties )(Y page 295)
Vehicle preparation is not necessary on
vehicles with MOExtende dtires.
R aT IREFIT kit (Y page 294)
Information on changing/mounting awheel
(Y page 337).
X Stop the vehicle on solid, non-slippery and
level ground, as far away as possible from
traffic.
X Switch on the hazar dwarnin glamps.
X Secure the vehicle against rollin gaway
(Y page 152).
X If possible ,brin gthe front wheels int othe
straight-ahead position.
X Switch off the engine.
X Remove the SmartKey fro mthe ignition
lock. X
All occupant smust get out of the vehicle.
Make sure that the yare not endangered as
the ydos o.
X Make sure that no one is near the danger
area while awheel is being changed.
Anyone who is not directly assisting in the
wheel change should, for example, stand
behin dthe barrier.
X Get out of the vehicle. Pay attention to
traffic conditions when doing so.
X Close the driver's door.
i Vehicles equipped with MOExtende dtires
are not equipped with aTIREFIT kit at the
factory. It is therefore recommende dthat
you additionally equip your vehicle with a
TIREFIT kit if you moun ttires that do not
feature run-flat properties ,e.g. winter tires.
AT IREFIT kit can be obtained fro ma
qualified specialist workshop. MOExtended tires (tires with run-flat
properties)
General notes With MOExtende
dtires (tires with run flat
characteristics), you can continue to drive
your vehicle even if there is atotal loss of
pressure in one or mor etires. The affected
tir em ust not show any clearly visible damage.
You can recognize MOExtende dtires by the
MOExtende dmarking which appears on the
sidewall of the tire. You will fin dthis marking
nex ttot he tire size designation, the load-
bearing capacity and the speed index
(Y page 330).
MOExtended tires may only be used in
conjunction with an active tire pressure loss
warning system.
If the pressur eloss warning message
appears in the multifunction display:
R Observe the instructions in the display
messages (Y page 231).
R Check the tire for damage.
R If driving on, observe the following notes. Flat tire
295Breakdown assistance

The maximum driving distanc
eis
approximately 50 miles (80 km) when the
vehicle is partially laden and approximately
18 miles (30 km) when the vehicle is fully
laden.
In addition to the vehicle load, the driving
distanc epossible depends upon:
R Speed
R Road condition
R Outside temperature
The driving distanc epossible in run-flat mode
may be reduced by extreme driving
conditions/maneuvers, or it can be increased
through amoderate style of driving.
The maximum permissible distanc ewhich
can be driven in run-flat mode is counted from
the moment the tire pressure loss warning
appears in the multifunction display.
You must not exceed amaximum speed of
50 mph (80 km/h).
i When replacing one or all tires, make sure
that you use only tires:
R of the size specified for the vehicle and
R marked "MOExtended"
If at ire has gone flat and cannot be
replaced with aMOExtended tire, a
standard tire may be used as atemporary
measure. Make sure that you use the
proper size and type (summer or winter
tire).
i Vehicles equipped with MOExtended tires
are not equipped with aTIREFIT kit at the
factory. It is therefore recommended that
you additionally equip your vehicle with a
TIREFIT kit if you mount tires that do not
feature run-flat properties, e.g. winter tires.
AT IREFIT kit can be obtained from a
qualified specialist workshop.
Important safety notes G
WARNING
When driving in emergenc ymode, the driving
characteristics deteriorate, e.g. when cornering, acceleratin
gquickly and when
braking. There is arisk of an accident.
Do not exceed the stated maximum speed.
Avoid abrupt steerin gand driving maneuvers,
and driving over obstacles (curbs, potholes,
off-road). This applies in particular to aladen
vehicle.
Stop driving in emergenc ymode if:
R you hear banging noises.
R the vehicle start stoshake.
R you see smoke and smell rubber.
R ESP ®
is intervening constantly.
R there are tears in the sidewalls of the tire.
After driving in emergenc ymode, have the
wheel rims checked at aqualified specialist
workshop with regard to their further use. The
defective tire must be replaced in every case. TIREFIT kit
Important safety notes TIREFIT is
atire sealant.
You can use TIREFIT to seal punctures of up
to 0.16in(4m m),particularl ythose in the tire
tread. Yo ucan us eTIREFIT at outside
temperatures down to 000F4‡(000F20 †). G
WARNING
In the following situations, the tir esealan tis
unabl etop rovide sufficient breakdown
assistance, as it is unabl etosealthe tire
properly:
R there ar ecutsorp unctures in the tir elarger
tha nthose mentioned above.
R the wheel rim is damaged.
R you have driven at very low tire pressures
or on aflat tire.
There is arisk of an accident.
Do not drive the vehicle. Contact aqualified
specialist workshop. 296
Flat tireBreakdown assistance

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please not ethat your vehicle may
not be equipped with all features
described. This also applies to safety-
related system sand functions.
i Read the information on qualified
specialist workshops: (Y page 25).Important safet
ynotes G
WARNING
If wheels and tires of the wrong size are used,
the wheel brakes or suspension components
may be damaged. There is arisk of an
accident.
Always replac ewheels and tires with those
that fulfill the specifications of the original
part.
When replacing wheels, make sure to use the
correct:
R designation
R model
When replacing tires, make sure to use the
correct:
R designation
R manufacturer
R model G
WARNING
Af lat tir eseverely impairs the driving,
steerin gand braking characteristics of the
vehicle. There is arisk of accident.
Tires without run-flat characteristics:
R do not drive with aflat tire.
R immediately replac ethe flat tir ewith your
emergenc yspare wheel or spare wheel, or
consult aqualified specialist workshop. Tires with run-flat characteristics:
R
pay attention to the information and
warnin gnotices on MOExtended tires (tires
with run-flat characteristics).
Accessories that are not approved for your
vehicle by Mercedes-Ben zorthat are not
being used correctly can impair operating
safety.
Before purchasing and using non-approved
accessories, visit aqualified specialist
workshop and inquire about:
R suitability
R legal stipulations
R factory recommendations
Information on dimensions and types of
wheels and tires for your vehicle can be found
(Y page 340).
Information on air pressure for the tires on
your vehicle can be found:
R on the vehicle's Tire and Loading
Information placard on the B-pillar
R on the tire pressure label on the fuel filler
flap
R under "Tire pressure"
i Further information on wheels and tires
can be obtained at any qualified specialist
workshop. Operation
Information on driving
R If the vehicle is heavily loaded, check the
tire pressures and correct them if
necessary.
R While driving, pay attention to vibrations,
noises and unusual handling
characteristics, e.g. pulling to one side.
This may indicate that the wheels or tires
are damaged. If you suspect that atire is
defective, reduce your speed immediately.
Stop the vehicle as soon as possible to
check the wheels and tires for damage.
Hidden tire damage could also be causing 312
OperationWheels and tires

Bar indicator
001Afor trea dwearisi ntegrated
into the tire tread.
Treadwear indicator s(TWI) are required by
law. Six indicator sare positioned on the tire
tread. The yare visible once the trea ddepth
is approximately 0003in (1.6 mm). If this is the
case ,the tire is so worn that it mus tbe
replaced. Selecting, mounting and replacing
tires
R Only mount tires and wheels of the same
type and make.
Exception: it is permissible to install a
different type or make in the event of aflat
tire. Observe the "MOExtended tires (tires
with run-flat characteristics" section
(Y page2 95).
R Only mount tires of the correct size onto
the wheels.
R After mounting new tires, brea kthem in at
moderate speeds for the first 60 miles
(100 km), as they only reach their full
performance after this distance.
R Do not drive with tires which have too little
tread depth, as this significantly reduces
the traction on wet roads (hydroplaning).
R Replace the tires after six years at the
latest, regardless of wear. MOExtended tires (tires with run-flat
properties)
With MOExtended tires (tires with run flat
characteristics), you can continue to drive
your vehicle even if there is atotal loss of
pressure in one or more tires.
MOExtended tires may only be used in
conjunction with an active tire pressure loss
warning system and only on wheels
specifically tested by Mercedes-Benz.
Notes on driving with MOExtended tires with
af lat tire (Y page 295). i
Vehicles equipped with MOExtended tires
are not equipped with aTIREFIT kit at the
factory. It is therefore recommended that
you additionallye quip your vehicle with a
TIREFIT kit if you mount tires that do not
feature run-flat properties, e.g. winter tires.
AT IREFIT kit can be obtained from a
qualified specialist workshop. Winter operation
General notes
Have your vehicle winterproofed at aqualified
specialist workshop at the onset of winter.
Observe the notes in the "Changing awheel"
section (Y page 336). Driving with summer tires
At temperatures below 45 ‡(+7 †), summer
tires lose elasticity and therefore traction and
braking power. Change the tires on your
vehicle to M+S tires. Using summe rtires at
very cold temperatures coul dcause cracks to
form, thereb ydamaging the tires
permanently. Mercedes-Benz cannot accept
responsibility for this type of damage. M+S tires
G
WARNING
M+S tires with atire tread depth of less than
0015 in (4 mm) are not suitabl efor use in winter
and do not provide sufficient traction. There
is ar isk of an accident.
M+S tires with atread depth of less than 0015
in (4 mm) must be replaced immediately.
At temperatures below 45 ‡(+7 †), use
winter tires or all-season tires. Both type sof
tire are identified by the M+S marking.
Only winter tires bearing the 000Esnowflake
symbol in addition to the M+S marking
provide the best possibl egrip in wintry road
conditions. Only these tires will allow driving 314
Winte
roperationWheels and tires

safety systems such as ABS and ESP
®
to
function optimally in winter. These tires have
been developed specifically for driving in
snow.
Use M+S tires of the same make and tread on
all wheels to maintain safe handling
characteristics.
Alwayso bserve the maximum permissible
speed specified for the M+S tires you have
mounted.
Once the winter tires are mounted:
X Check the tire pressures (Y page 319).
X Restart the tire pressure loss warning
system (Y page 319).
For more information on driving with the
emergency spare wheel, see (Y page 342).Snow chains
G
WARNING
If snow chains are mounted on the rear
wheels, the snow chains could cause abrasion
to the vehicle body or to chassis components.
This could cause damage to the vehicle or the
tires. There is arisk of an accident.
To avoid hazardous situations:
R never mount snow chains on the rear
wheels
R only mount snow chains in pairs on the
front wheels.
! On some tire sizes there is not enough
space for snow chains. To avoid damage to
the vehicle or tires, observe the "Wheel and
tire combinations" section under "Tires and
wheels".
For safety reasons, Mercedes-Benz
recommends that you only use snow chains
that have been speciallya pproved for your
vehicle by Mercedes-Benz,ora re of a
corresponding standard of quality. If you intend to mount snow chains, please
bear the following points in mind:
R
Snow chains may not be mounted on all
wheel/tire combinations. Permissible
wheel-tire combinations (Y page 340).
R Only use snow chains when driving on
roads completely covered by snow.
Remove the snow chains as soon as
possible when you come to aroad that is
not snow-covered.
R Local regulations may restrict the use of
snow chains. Observe the appropriate
regulations if you wish to mount snow
chains.
R Do not exceed the maximum permissible
speed of 30 mph (50 km/h).
R When snow chains are installed, never use
Active Parking Assist (Y page 175).
i You can deactivate ESP ®
(Y page 68)
when pulling away with snow chains
installed. You can thereby allow the wheels
to spin in acontrolled manner ,achieving an
increased driving force (cutting action).
Information about driving with an emergency
spare wheel (Y page 342). Tire pressure
Tire pressur
especifications G
WARNING
Underinflated or overinflated tires pose the
following risks:
R the tires may burst, especially as the load
and vehicle speed increase.
R the tires may wear excessively and/or
unevenly, which may greatly impair tire
traction.
R the driving characteristics, as well as
steering and braking, may be greatly
impaired.
There is arisk of an accident. Tirep
ressure
315Wheels and tires
Z

Follow recommende
dtire inflation pressures
and check the pressure of al lthe tires
including the spare wheel:
R monthly, at least
R if the loa dchanges
R before beginning along journey
R under different operating conditions, e.g.
off-roa ddriving
If necessary ,correct the tire pressure.
Use asuitabl epressure gaug etocheck the
tire pressure. The outer appearance of atire
doe snot permit any reliabl econclusio nabout
the tire pressure. On vehicles equipped with
the electronic tire pressure monitor, the tire
pressure can be checked in the on-board
computer.
The recommended tire pressures for the tires
mounted at the factory can be found on the
labels described here.
1.) Tirea nd Loading Information placard
on the B-pillar on the driver' sside of the
vehicle (Y page 323).
The Tire and Loading Information placard
contains the recommended tire pressures for
cold tires .The recommended tire pressures
are valid for the maximum permissible load
and up to the maximum permissible vehicle
speed. 001A
Recommended tire pressures
Option 2) Tire pressuret ableon the inside
of the fuel filler flap.
The tire pressure table contains the
recommended pressures for cold tires for various operating conditions, i.e. differing
load and speed conditions.
i
Specifications shown in the examples of
tire pressure tables are for illustration
purposes only. Tire pressure specifications
are vehicle-specific and may deviate from
the data shown here. Tire pressure
specifications applicable to your vehicle
are located in your vehicle's tire pressure
table. Example: tire pressure table for all tires permitted
for this vehicle by the factory
If
at ire size precedes atire pressure, the tire
pressure 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.R
im diameter is part of the tir esize and 316
Tir
ep ressureWheels and tires

pressure loss warning system can only give
reliable warning
sifyou have set the correct
tire pressure. If an incorrec ttire pressure
is set, these incorrec tvalues will be
monitored.
X Als oobserv ethe note sinthesectio nontire
pressures (Y page 315).
X Make sure that the SmartKey is in position
2in the ignition lock (Y page 137).
X Press 000Aor0004 on the steerin gwheel
to selec tthe Service menu.
X Press the 0006or0005 button to select
Tire Pressure .
X Press the 000Cbutton.
The Run Flat Indicator Active Press 'OK' to Restart message
appears in the multifunction display.
If you wish to confirm the restart:
X Press the 000Cbutton.
The Tire Pressure Now OK? message
appears in the multifunction display.
X Press the 0006or0005 button to select
Yes .
X Press the 000Cbutton.
The Run Flat Indicator Restarted message appears in the multifunction
display.
After
ateach-in period, the tire pressure
loss warning system will monitor the set
tire pressures of all four tires.
If you wish to cancel the restart:
X Press the 0002button.
or
X When the Tire Pressure Now OK? message appears, press the
0006
or 0005 button to select Cancel .
X Press the 000Cbutton.
The tire pressure values stored at the last
restart will continue to be monitored. Tire pressurem
onitor
General notes If
at ire pressure monitor is installed, the
vehicle's wheels have sensors that monitor
the tire pressures in all four tires. The tire
pressure monitor warns you if the pressure
drops in one or more of the tires. The tire
pressure monitor only functions if the correct
sensors are installed on all wheels.
Information on tire pressures is displayed in
the multifunction display. After afew minutes
of driving, the current tire pressure of each
tire is shown in the Service menu of the
multifunction display. Example: current tire pressure display
For information on the message display, refer
to the "Checking the tire pressure
electronically"s
ection (Ypage 322).
Important safety notes G
WARNING
Each tire, including the spare (if provided),
should be checked at least once every two
weeks when cold and inflated to the pressure
recommended by the vehicle manufacturer
on the Tire and Loading Information placard
on the driver's door B-pillar or the tire
pressure label on the inside of the fuel filler
flap. If your vehicle has tires of adifferent size
than the size indicated on the Tire and Loading
Information placard or, if available, the tire
pressure label, you should determine the
proper tire pressure for those tires.
As an added safety feature, your vehicle has
been equipped with atire pressure monitoring
system (TPMS) that illuminates alow tire
pressure telltale when one or more of your 320
Tire pressureWheels and tires

X
Set the tire pressure to the value
recommended for the corresponding
driving situation on the Tire and Loading
Information placard on the driver' sside
B-pillar (Y page 315).
Additiona ltire pressure value sfor different
load scan also be found on the tire pressure
table on the inside of the fue lfille rflap
(Y page 315).
X Make sure that the tir epressure is correct
on all four wheels.
X Make sure that the SmartKey is in position
2in the ignition lock.
X Press 000Aor0004 on the steerin gwheel
to selec tthe Service menu.
X Press the 0006or0005 button to select
Tire Pressure .
X Press the 000Cbutton.
The multifunction displays hows the
current tire pressure for the individualt ires
or the Tire pressures will be displayed after driving
afew minutes message.
X Press the 0005button.
The Use Current Pressures as New Reference Values message appears in
the multifunction display.
If you wish to confirm the restart:
X Press the 000Cbutton.
The Tire Pressure Monitor Restarted message appears in the
multifunction display.
After driving for afew minutes, the system
checksw hether the current tire pressures
are within the specified range. The new tire
pressures are then accepted as reference
values and monitored.
If you wish to cancel the restart:
X Press the 0002button.
The tire pressure values stored at the last
restart will continue to be monitored. Loading the vehicle
Instruction labels for tires and loads
G
WARNING
Overloaded tires can overheat, causing a
blowout. Overloaded tires can also impair the
steering and driving characteristics and lead
to brake failure. There is arisk of accident.
Observe the load rating of the tires. The load
rating must be at least half of the GAWR of
your vehicle. Never overload the tires by
exceeding the maximum load. 001A
B-pillar, driver's side
Two instruction labelsony our vehicle show
the maximum possible load.
(1) The Tire and Loading Information placard is on the B-pillar on the driver's side. The
Tire and Loading Information placard
shows the maximum permissible number
of occupants and the maximum
permissible vehicle load. It also contains
details of the tire sizes and
corresponding pressures for tires
mounted at the factory.
(2) The vehicle identification plate is on the B-pillar on the driver's side. The vehicle
identification plate informs you of the
gross vehicle weight rating. It is made up
of the vehicle weight, all vehicle
occupants, the fuel and the cargo. You
can also find information about the
maximum gross axle weight rating on the
front and rear axle. Loading the vehicle
323Wheels and tires Z