wheel size MERCEDES-BENZ CLA 2014 Owners Manual

M+S tires.......................................314
Maximum loaded vehicle weight
(definition).....................................334
Maximum load on a tire (definition) 334
Maximum permissible tire
pressure (definition) ....................... 334
Maximum tire load.........................327
Maximum tire load (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.........................161, 314
Temperature..................................329
TIN (Tire Identification Number)
(definition).....................................335
Tire bead(definition)......................335
Tire pressure (definition)................335
Tire pressures (recommended)......333
Tire size (data)...............................340
Tire size designation, load-bearing
capacity, speed rating .................... 330
Tire tread.......................................313
Tire tread (definition).....................335
Total load limit (definition).............335
Traction.........................................328
Traction (definition).......................335
Treadwear.....................................328
Uniform Tire Quality Grading
Standards......................................328
Uniform Tire Quality Grading
Standards(definition)....................333
Unladen weight (definition)............334
Wearindicator(definition).............335
Wheelrim (definition)....................333
see Flat tire
Top Tether............................................59
Towing
Important safety guidelines...........305
Installing the towing eye................306
Removing the towing eye...............306
Towingatrailer
ESP®(Electronic Stability Program).69
Towing away
With both axles on the 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.........143
Transporting the vehicle..................307
Trim pieces (cleaning instructions).290
Trip computer (on-board computer)197
Trip odometer
Calling up ....................................... 197
Resetting (on-board computer)......198
Trunk
Emergency release..........................82
Emergency release button...............82
Important safety notes....................80
Opening/closing (manually from
outside) ............................................ 80
Opening (automatically from
outside) ............................................ 81
Opening automatically from inside..81
Trunk emergency release button....... 82
Trunk lid
Display message............................238
Opening dimensions......................351
Trunk load (maximum)......................351
Turn signals
Changing bulbs (front)...................113
Changing bulbs (rear)....................114
Display message............................223
Switching on/off...........................106
TV
Operating (on-board computer).....201
see Separate operating instructions
Type identification plate
see Vehicle identification plate
18Index

U
Unlocking
Emergencyunlocking.......................79
From inside the vehicle (central
unlocking button).............................78
V
Vanity mirror (in the sun visor)........262
Vehicle
Correct use......................................25
Data acquisition...............................26
Equipment.......................................22
Individualsettings..........................205
Limited Warranty.............................26
Loading..........................................323
Locking (in an emergency)...............79
Locking (SmartKey) .......................... 72
Lowering........................................340
Maintenance....................................23
Parking for a long period ................ 156
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)...........79
Unlocking (SmartKey)......................72
Vehicle data...................................351
Vehicle data.......................................351
Vehicle dimensions...........................351
Vehicle emergency locking................79
Vehicle identification number
see VIN
Vehicle identification plate..............344
Vehicle maintenance
see ASSYST PLUS
Vehicle tool kit..................................294
Video (DVD)........................................ 201
VIN......................................................344
W
Warning and indicator lamps
ABS ................................................ 242
Brakes...........................................242
Check Engine.................................248
Coolant..........................................248
Distance warning...........................250
DISTRONICPLUS...........................250
ESP®..............................................244
ESP®OFF ....................................... 245
Fuel tank ........................................ 248
Overview..........................................30
PASSENGER AIR BAG OFF
indicator lamp..................................45
Reserve fuel...................................248
Seat belt........................................240
SPORT handling mode...................245
SRS ................................................ 247
Tire pressure monitor....................251
Warranty............................................344
Washer fluid
Display message............................239
Wheel bolttightening torque...........340
Wheel chock......................................337
Wheels
Changingawheel..........................336
Checking ........................................ 313
Cleaning ......................................... 287
Cleaning (warning).........................336
Important safety notes..................312
Interchanging/changing................336
Mountinganew wheel...................339
Mountingawheel..........................336
Removingawheel..........................339
Storing...........................................336
Tightening torque ........................... 340
Wheelsize/tiresize.......................340
Window curtain air bag
Display message............................220
Operation .........................................45
Windows
see Side windows
Windshield
Defrosting......................................129
Windshieldwasher fluid
see Windshield washer system
Windshieldwasher system
Adding washer fluid.......................283
Notes.............................................350
Index19

As the airbag inflates with considerable
speed and force, a proper seating position
and correct positioning of the hands on the
steering wheel will help to keep you at a safe
distance from the air bag. Occupants who are
notwearing their seat belt, are not seated
properly or are too close to the air bag can be
seriously injured or killed by an air bag, as it
inflates with great force instantaneously:
Rsit with the seat belt fastened correctly and
in a position that is as upright as possible
with your back against the backrest.
Rmove the driver's seat as far back as
possible, still permitting proper operation
of vehicle controls. The distance from the
center of the driver's chest to the center of
the air bag cover on the steering wheel
must be at least 10 inches (25 cm). You
should be able to accomplish this by
adjusting the seat and steering wheel. If
you have any difficulties, please contact an
authorized Mercedes-Benz Center.
Rdo not lean your head or chest close to the
steering wheel or dashboard.
Ronly hold the steering wheel on the outside.
Placing hands and arms inside the rim can
increase the risk and potential severity of
hand/arm injury if the driver front air bag
inflates.
Radjust the front-passenger seat as far back
as possible from the dashboard when the
seat is occupied.
Roccupants, especially children, should
never place their bodies or lean their heads
in the area of the door where the side
impact air bag inflates.This could result in
serious or fatal injuries should the side
impact air bag be deployed. Always sit as
upright as possible, wear the seat belt
properly and use an appropriately sized
infant restraint, toddler restraint or booster
seat recommended for the size and weight
of the child.
Failure to follow these instructions can result
in severe injuries to you or other occupants.
If you sell your vehicle, it is important that you
make the buyer aware of this safety
information. Be sure to give the buyer this
Operator's Manual.
If the air bags are deployed, you will hear a
bang, and a small amount of powder may also
be released. Only in rare cases will the bang
affect your hearing. The powder that is
released generally does not constitute a
health hazard and does not indicate that there
is a fire in the vehicle. The dust might cause
some temporary breathing difficulty for
people with asthma or other breathing
trouble. To avoid this, you may wish to get out
of the vehicle as soon as it is safe to do so.
You can also open the window to allow fresh
air to enter the vehicle interior. TheSRS
warning lamp lights up.
The air bag installation locations are
identified by the AIR BAG symbol.
The air bags are deployed if the air bag control
unit detects the need for deployment.Only in
the event of such a situationwill the air bags
provide their supplemental protection.
If the driverand front passengerdo not wear
their seat belts, it is not possible for the air
bags to provide their supplemental
protection.
In the event of other types of impacts and
impacts below air bag deployment
thresholds, the air bags will not deploy. The
driver and passenger will then be protected
to the extentpossible by a properly fastened
seat belt.Aproperly fastened seat beltis also
needed to provide the best possible
protection in a rollover.
Air bags provide additional protection; they
are not, however, a substitute for seat belts.
All vehicle occupants must fasten their seat
belts regardless of whether your vehicle is
equipped with air bags or not.
It is important for your safety and that of your
passenger to have deployed air bags replaced
and to have any malfunctioning air bags
repaired. This will help to make sure the air
bags continue to perform their protective
42Occupant safety
Safety

!When testing the electric parking brake
on a braking dynamometer, switch off the
ignition. Application of the brakes by
ESP®may otherwise destroy the brake
system.
!Vehicles with 4MATIC: switch off the
ignition when the electric parking brake is
being tested on a brake dynamometer.
Application of the brakes by ESP®may
otherwise destroy the brake system.
!Vehicles with 4MATIC: function or
performance tests may only be carried out
on a 2-axle dynamometer. Before you
operate the vehicle on such a
dynamometer, please consult a qualified
workshop. You could otherwise damage
the drive train or the brake system.
!Do not tow vehicles with 4MATIC with the
front or rear axle raised.
Vehicles without 4MATIC: when towing your
vehicle with the front axle raised, it is
important that you observe the notes on
ESP®(Ypage 307).
Vehicles with 4MATIC: when towing your
vehicle with both axles on the ground, it is
important that you observe the notes on
ESP®(Ypage 307).
ESP®is deactivated if theESP®OFF
warning lamp in the instrument cluster lights
up continuously when the engine is running.
If theESP®warning lamp and the
ESP®OFF warning lamp are lit
continuously, ESP®is not available due to a
malfunction.
Observe the information on warning lamps
(Ypage 244) and displaymessages which
may be shown in the instrument cluster
(Ypage 213).
iOnly use wheels with the recommended
tire sizes. Only then will ESP®function
properly.
Characteristics of ESP®
General information
If theESP warning lamp goes out before
beginning the journey, ESP®is automatically
active.
If ESP®intervenes, theESP®warning
lamp flashes in the instrument cluster.
If ESP®intervenes:
XDo not deactivate ESP®under any
circumstances.
XOnly depress the accelerator pedal as far
as necessary when pulling away.
XAdapt your driving style to suit the
prevailing road and weather conditions.
ECO start/stop function
The ECO start/stop function switches the
engine off automatically when the vehicle
stops moving. The engine starts
automatically when the driver wants to pull
away again. ESP®remains in its previously
selected status.Example:if ESP®was
deactivated before the enginewas switched
off, ESP®remains deactivated when the
engine is switched on again.
Deactivating/activating ESP®(AMG
vehicles)
Important safety notes
iObserve the "Important safety notes"
section(Ypage 61).
You can select between the following states
of ESP®:
RESP®is activated.
RSPORT handling mode is activated.
RESP®is deactivated.
GWARNING
When SPORT handling mode is activated,
there is a greater risk of skidding and
accidents.
66Driving safetysystems
Safety

The seat belt should:
Rfit snugly across your body
Rbe routed across the middle of your
shoulder
Rbe routed in your pelvic area across the
hip joints
XBefore starting off, adjust the rear-view
mirror and the exterior mirrors
(Ypage 97) in such a way that you have
a good view of road and traffic conditions.
XVehicles with a memory function:save
the seat and exterior mirror settings
(Ypage 100).
Seats
Important safety notes
GWARNING
Children could become trapped if they adjust
the seats, particularly when unattended.
There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
GWARNING
You could lose control of your vehicle if you
do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint,
steering wheel and mirror and fasten your
seat belt before starting the engine.
GWARNING
If you adjust the seat height carelessly, you or
other vehicle occupants could be trapped and
thereby injured. Children in particular could
accidentally press the electrical seat
adjustmentbuttons and become trapped.
There is a riskofinjury.
While moving the seats, make sure thatyour
hands or other body parts do not get under
the lever assembly of the seat adjustment
system.
GWARNING
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the
seat guide rail. There isarisk of injury.
Make sure when adjustingaseat that no one
has any body parts in the sweep of the seat.
GWARNING
The seat belt does not offer the intended level
of protection if the backrest is not in the
upright position.When braking or in the event
of an accident, you could slide underneath the
seat belt and sustain abdomen or neck
injuries, for example. This poses an increased
risk of injury or even fatal injury.
Adjust the seat properly before beginning
your journey. Always make sure that the seat
is in the upright position.
GWARNING
If head restraints are not installed and
adjusted correctly, they cannot provide
protection as intended. There is an increased
risk of injury in the head and neck area, e.g.
in the event of an accident or when braking.
Always drive with the head restraints
installed. Before driving off, make sure for
every vehicle occupant that the center of the
head restraint supports the back of the head
at about eye level.
GWARNING
According to accident statistics, children are
safer when properly restrained on the rear
seats than on the front-passenger seat. Thus,
we strongly recommend that children be
placed in the rear seat whenever possible.
Regardless of seating position, children 12
years old and under must be seated and
properly secured in an appropriately sized
child restraint system or booster seat
Seats91
Seats, steering wheel and mirrors
Z

recommended for the size and weight of the
child.For additional information, see the
"Children in the vehicle" section.
Achild's risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and/
or the child is not properly secured in the child
restraint.
!To avoid damage to the seats and the seat
heating, observe the following information:
Rkeep liquids from spilling on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
Rif the seat covers are damp or wet, do not
switch on the seat heating. The seat
heating should also not be used to dry
the seats.
Rclean the seat covers as recommended;
see the "Interior care" section.
Rdo not transport heavy loads on the
seats. Do not place sharp objects on the
seat cushions, e.g. knives, nails or tools.
The seats should only be occupied by
passengers, if possible.
Rwhen the seat heating is in operation, do
not cover the seats with insulating
materials, e.g. blankets, coats, bags,
seat covers, child seats or booster seats.
!Make sure that there are no objects in the
footwell or behind the seats when resetting
the seats. There is a risk that the seats
and/or the objects could be damaged.
iThe head restraints in the front and rear
seats can be removed.1
For more information, contact a qualified
specialist workshop.
iFurther related subjects:
RLuggage compartmentenlargement
(folding down the rearseats)
(Ypage 257)
Adjusting the seats manually
Seat fore-and-aft adjustment
XLift handleand slide the seat forwards
or backwards.
XRelease leveragain.
Make sure that you hear the seat engage in
position.
Backrest angle
XRelieve the pressure on the backrest.
XTurn handwheel!forwards or backwards.
Seat height
XPull handle"upwards or push it down
repeatedly until the seat has reached the
desired height.
Seat cushion angle
Adjust the angle so that your thighs are lightly
supported.
XTurn handwheelforwards or backwards.
1Not on vehicles with sportsseats.
92Seats
Seats, steering wheel and mirrors

Adjusting the steering wheel
GWARNING
If the steering wheel is unlocked while the
vehicle is in motion, it could change position
unexpectedly. This could causeyou to lose
control of the vehicle. There is a risk of an
accident.
Before starting off, make sure the steering
wheel is locked. Never unlock the steering
wheel while the vehicle is in motion.
Release lever
To adjust the steering wheel height
"To adjust the steering wheel position
(fore-and-aft adjustment)
XPush release leverdown completely.
The steering column is unlocked.
XAdjust the steering wheel to the desired
position.
XPush release leverup completely.
The steering column is locked.
XCheck if the steering column is locked.
When doing so, try to push the steering
wheel up or down or try to move it in the
fore-and-aft direction.
Mirrors
Rear-view mirror
XAnti-glare mode:flick anti-glare lever
forwards or back.
Exterior mirrors
Adjusting the exterior mirrors
GWARNING
The exterior mirror on the front-passenger
side reduces the size of the image. Visible
objects are actually closer than they appear.
This means that you could misjudge the
distance from road users traveling behind,
e.g. when changing lane. There is a risk of an
accident.
For this reason, always make sure of the
actual distance from the road users traveling
behind by glancing over your shoulder.
Mirrors97
Seats, steering wheel and mirrors
Z

The tire-change tool kit contains:
RJack
RLug wrench
ROne pair of gloves
RFolding wheel chock
Flat tire
Preparing the vehicle
Your vehicle may be equipped with:
RMOExtended tires (tires with run-flat
properties) (Ypage 295)
Vehicle preparation is not necessary on
vehicles with MOExtended tires.
Ra TIREFIT kit (Ypage 294)
Information on changing/mounting a wheel
(Ypage 336).
XStop the vehicle on solid, non-slippery and
level ground, as far away as possible from
traffic.
XSwitch on the hazard warning lamps.
XSecure the vehicle against rolling away
(Ypage 153).
XIf possible, bring the frontwheels into the
straight-ahead position.
XSwitch off the engine.
XRemove the SmartKey from the ignition
lock.
XAll occupants must get out of the vehicle.
Make sure that they are not endangered as
they do so.
XMake sure that no one is near the danger
area while a wheel is being changed.
Anyone who is not directly assisting in the
wheel change should, for example, stand
behind the barrier.
XGet out of the vehicle. Pay attention to
traffic conditions when doing so.
XClose the driver's door.
iVehicles equipped with MOExtended tires
are not equipped with a TIREFIT 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.
A TIREFIT kit can be obtained from a
qualified specialist workshop.
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
(Ypage 330).
MOExtended tires may only be used in
conjunction with an active tire pressure loss
warning system or with an active tire pressure
monitor.
If the pressure loss warning message
appears in the multifunction display:
RObserve the instructions in the display
messages (Ypage 234).
RCheck the tire for damage.
RIf driving on, observe the following notes.
The maximum driving distance is
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
distance possible depends upon:
RSpeed
RRoad condition
ROutside temperature
The driving distance possible in run-flat mode
may be reduced by extreme driving
Flat tire295
Breakdown assistance

conditions/maneuvers, or it can be increased
through a moderate style of driving.
The maximum permissible distance which
can be driven in run-flat mode is counted from
the moment the tire pressure loss warning
appears in the multifunction display.
You mustnot exceed a maximum speed of
50 mph (80 km/h).
iWhen replacing one or all tires, make sure
that you use only tires:
Rof the size specified for the vehicle and
Rmarked "MOExtended"
If a tire has gone flat and cannot be
replaced with a MOExtended tire, a
standard tire may be used as a temporary
measure. Make sure that you use the
proper size and type (summer or winter
tire).
iVehicles equipped with MOExtended tires
are not equipped with a TIREFIT 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.
A TIREFIT kit can be obtained from a
qualified specialist workshop.
Important safety notes
GWARNING
When driving in emergency mode, the driving
characteristics deteriorate, e.g. when
cornering, accelerating quickly and when
braking. There is a risk of an accident.
Do not exceed the stated maximum speed.
Avoid abrupt steering and driving maneuvers,
and driving over obstacles (curbs, potholes,
off-road). This applies in particular to a laden
vehicle.
Stop driving in emergency mode if:
Ryou hear banging noises.
Rthe vehicle starts to shake.
Ryou see smoke and smell rubber.
RESP®is intervening constantly.
Rthere are tears in the sidewalls of the tire.
After driving in emergency mode, have the
wheel rims checked at a qualified specialist
workshop with regard to their further use. The
defective tire must be replaced in every case.
TIREFIT kit
Important safety notes
GWARNING
In the following situations, the tire sealant is
unable to provide sufficient breakdown
assistance, as it is unable to seal the tire
properly:
Rthere are cuts or punctures in the tire larger
than those mentioned above.
Rthe wheel rim is damaged.
Ryou have driven at very low tire pressures
or on a flat tire.
There is a risk of an accident.
Do not drive any further. Contact a qualified
specialist workshop.
GWARNING
The tire sealant is harmful and causes
irritation. It must not come into contact with
your skin, eyes or clothing or be swallowed.
Do not inhale TIREFIT fumes. Keep tire sealant
away from children. There is a risk of injury.
If you come into contact with the tire sealant,
observe the following:
RRinse off the tire sealant from your skin
immediately with water.
RIf the tire sealant comes into contact with
your eyes, immediately rinse them
thoroughly with clean water.
RIf tire sealant is swallowed, immediately
rinse your mouth out thoroughly and drink
plenty of water. Do not induce vomiting,
and seek medical attention immediately.
296Flat tire
Breakdown assistance

Useful information
iThis 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 note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
iRead the information on qualified
specialist workshops: (Ypage 25).
Important safety notes
GWARNING
If wheels and tires of the wrong size are used,
the wheel brakes or suspension components
may be damaged. There isarisk of an
accident.
Always replace wheels and tires with those
that fulfill the specifications of the original
part.
When replacing wheels, make sure to use the
correct:
Rdesignation
Rmodel
When replacing tires, make sure to use the
correct:
Rdesignation
Rmanufacturer
Rmodel
GWARNING
Aflat tire severely impairs the driving,
steering and braking characteristics of the
vehicle. There is a risk of accident.
Tires without run-flat characteristics:
Rdo not drive withaflat tire.
Rimmediately replace the flat tire with your
emergency spare wheel or spare wheel, or
consult a qualified specialist workshop.
Tires with run-flat characteristics:
Rpay attention to the information and
warning notices on MOExtended tires (tires
with run-flat characteristics).
Accessories that are not approved for your
vehicle by Mercedes-Benzorthat are not
being used correctly can impair operating
safety.
Before purchasing and using non-approved
accessories, visit a qualified specialist
workshop and inquire about:
Rsuitability
Rlegal stipulations
Rfactory recommendations
Information on dimensions and types of
wheels and tires for your vehicle can be found
(Ypage 340).
Information on air pressure for the tires on
your vehicle can be found:
Ron the vehicle's Tire and Loading
Information placard on the B-pillar
Ron the tire pressure label on the fuel filler
flap
Runder "Tire pressure"
iFurther information on wheels and tires
can be obtained at any qualified specialist
workshop.
Operation
Information on driving
RIf the vehicle is heavily loaded, check the
tire pressures and correct them if
necessary.
RWhile 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 a tire 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
312Operation
Wheels and tires