2015 MERCEDES-BENZ CLA-Class tire size

Transmission oil (on-board com-
puter, AMG vehicles) ..................... 214
Through-loading feature ...................265
Timing (RACETIMER) ......................... 214
Tire pressure
Calling up (on-board computer) ..... 326
Checking manually ........................ 325
Display message ............................ 239
Important safety notes .................. 326
Maximum ....................................... 324
Not reached (TIREFIT) .................... 304
Notes ............................................. 323
Reached (TIREFIT) .......................... 304
Recommended ............................... 322
Tire pressure loss warning system
General notes ................................ 325
Important safety notes .................. 325
Restarting ...................................... 326
Tire pressure monitor
Checking the tire pressure elec-
tronically ........................................ 328
Function/notes ............................ .326
General notes ................................ 326
Important safety notes .................. 326
Radio type approval for the tire
pressure monitor ........................... 329
Restarting ...................................... 328
Warning lamp ................................. 259
Warning message .......................... 328
TIREFIT kit .......................................... 302
Tires
Aspect ratio (definition) ................. 340
Average weight of the vehicle
occupants (definition) .................... 339
Bar (definition) ............................... 338
Changing a wheel .......................... 341
Characteristics .............................. 338
Checking ........................................ 319
Curb weight (definition) ................. 340
Definition of terms ......................... 338
Direction of rotatio n...................... 341
Display message ............................ 239
Distribution of the vehicle occu-
pants (definition) ............................ 341
DOT (Department of Transporta-
tion) (definition) ............................. 339
DOT, Tire Identification Number
(TIN) ............................................... 338 GAWR (Gross Axle Weight Rating)
(definition) ..................................... 339
General notes ................................ 345
GVW (Gross Vehicle Weight) (def-
inition) ........................................... 339
GVWR (Gross Vehicle Weight Rat- ing) (definition) .............................. 339
Important safety notes .................. 318
Increased vehicle weight due to
optional equipment (definition) ...... 339
Information on driving .................... 318
Kilopascal (kPa) (definition) ........... 339
Labeling (overview) ........................ 335
Load bearing index (definition) ...... 340
Load index ..................................... 337
Load index (definition) ................... 339
M+S tires ....................................... 320
Maximum load on a tire (defini-
tion) ............................................... 340
Maximum loaded vehicle weight
(definition) ..................................... 339
Maximum permissible tire pres-
sure (definition) ............................. 340
Maximum tire load ......................... 337
Maximum tire load (definition) ....... 340
MOExtended tire s.......................... 320
Optional equipment weight (defi-
nition) ............................................ 340
PSI (pounds per square inch) (def-
inition) ........................................... 340
Replacing ....................................... 341
Service life ..................................... 320
Sidewall (definition) ....................... 340
Speed rating (definition) ................ 339
Storing ........................................... 341
Structure and characteristics
(definition) ..................................... 338
Summer tires ................................. 320
Temperature .................................. 334
TIN (Tire Identification Number)
(definition) ..................................... 340
Tire bead (definition) ...................... 340
Tire pressure (definition) ................ 340
Tire pressures (recommended )...... 339
Tire size (data )............................... 345
Tire size designation, load-bearing
capacity, speed rating .................... 335
Tire tread ....................................... 319 Index
17

Transporting ..................................3
14
Unlocking (in an emergency) ........... 83
Unlocking (SmartKey) ..................... .74
Vehicle data ................................... 359
Vehicle data
Roof load (maximum) .....................3 59
Trunk load (maximum) ................... 359
Vehicle dimensions ........................... 359
Vehicle emergency locking ................ 83
Vehicle identification number
see VIN
Vehicle identification plate .............. 352
Vehicle tool kit .................................. 300
Ventilation
Setting the vents ........................... 136
Video
Operating the DVD ......................... 207
VIN ...................................................... 352 W
Warning and indicator lamps ABS ................................................ 250
Brakes .......................................... .249
Check Engine ................................. 256
Coolant .......................................... 256
Distance warning ........................... 258
ESP ®
.............................................. 252
ESP ®
OFF ....................................... 253
LIM (DISTRONIC PLUS) .................. 173
Overview .......................................... 32
PASSENGER AIR BAG OFF .............. .41
Reserve fuel .................................. .256
Restraint system ............................ 255
Seat belt ........................................ 247
SPORT handling mode ................... 253
Tire pressure monitor .................... 259
Warranty .............................................. 21
Washer fluid
Display message ............................ 245
Wheel and tire combination
see Tires
Wheel bolt tightening torque ........... 345
Wheel chock ...................................... 342
Wheels
Changing a wheel .......................... 341
Checking ........................................ 319
Cleaning ......................................... 294 General notes ................................ 345
Important safety notes .................. 318
Information on driving .................... 318
Interchanging/changing ................ 341
Mounting a new wheel ................... 344
Removing a wheel .......................... 344
Storing .......................................... .341
Tightening torque ........................... 345
Wheel size/tire size ....................... 345
Window curtain air bag
Display message ............................ 226
Operation ......................................... 48
Windows
see Side windows
Windshield
Defrosting ...................................... 133
Windshield washer system
Adding washer fluid ....................... 290
Notes ............................................. 358
Windshield wipers
Display message ............................ 245
Problem (malfunction) ................... 122
Replacing the wiper blades ............ 121
Switching on/off ........................... 120
Winter driving
Slippery road surfaces ................... 168
Snow chains .................................. 321
Winter operation
General notes ................................ 320
Winter tires
M+S tires ....................................... 320
Wiper blades
Cleaning ......................................... 295
Important safety notes .................. 121
Replacing (windshield )................... 121
Wooden trim (cleaning instruc-
tions) .................................................. 297 Z
ZONE function Switching on/of f........................... 132 Index
19

ESP
®
(Electronic Stability Program)
General notes i
Observe the "Important safety notes" sec-
tion (Y page 63).
ESP ®
monitors driving stability and traction,
i.e. power transmission between the tires and the road surface.
If ESP ®
detects that the vehicle is deviating
from the direction desired by the driver, one
or more wheels are braked to stabilize the
vehicle. The engine output is also modified to keep the vehicle on the desired course within
physical limits. ESP ®
assists the driver when
pulling away on wet or slippery roads. ESP ®
can also stabilize the vehicle during braking.
ETS/4ETS (Electronic Traction System) i
Observe the "Important safety notes" sec-
tion (Y page 63).
ETS traction control is part of ESP ®
. On vehi-
cles with 4MATIC, 4ETS is part of ESP ®
.
Traction control brakes the drive wheels indi-
vidually if they spin. This enables you to pull
away and accelerate on slippery surfaces, for example if the road surface is slippery on one
side. In addition, more drive torque is trans-
ferred to the wheel or wheels with traction.
Traction control remains active, even if you
deactivate ESP ®
.
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 63). G
WARNING
If ESP ®
is malfunctioning, ESP ®
is unable to
stabilize the vehicle. Additionally, further driv- ing safety systems are deactivated. This
increases the risk of skidding and an accident.
Drive on carefully. Have ESP ®
checked at a
qualified specialist workshop. Vehicles without 4MATIC:
when towing
your vehicle with the front axle raised, it is
important that you observe the notes on ESP ®
(Y page 313).
ESP ®
is only deactivated if the åwarning
lamp is lit continuously.
If the ÷ warning lamp and the åwarn-
ing lamp are lit continuously, ESP ®
is not
available due to a malfunction.
Observe the information on warning lamps
(Y page 252) and display messages which
may be shown in the instrument cluster
(Y page 218).
Only use wheels with the recommended tire
sizes. Only then will ESP ®
function properly.
Characteristics of ESP ® General information
If the
÷ ESP®
warning lamp goes out
before beginning the journey, ESP ®
is auto-
matically active.
If ESP ®
intervenes, the ÷ESP®
warning
lamp flashes in the instrument cluster.
If ESP ®
intervenes:
X Do not deactivate ESP ®
under any circum-
stances.
X Only depress the accelerator pedal as far as
necessary when pulling away.
X Adapt your driving style to suit the prevail-
ing 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 automati-
cally when the driver wants to pull away again. ESP ®
remains in its previously selected sta-
tus. Example: if ESP®
was deactivated before
the engine was switched off, ESP ®
remains
deactivated when the engine is switched on
again. Driving safety systems
67Safety Z

Information on changing/mounting a wheel
(Y page 341).
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 160).
X If possible, bring the front wheels into the
straight-ahead position.
X Switch off the engine.
X Vehicles without KEYLESS-GO: remove
the SmartKey from the ignition lock.
X Vehicles with KEYLESS-GO start-func-
tion or 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 start-func-
tion or KEYLESS-GO: remove the Start/
Stop button from the ignition lock
(Y page 141).
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.
i Vehicles 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 quali-
fied 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
(Y page 335).
MOExtended tires may only be used in con-
junction with an active tire pressure loss
warning system or with an active tire pressure
monitor.
If a pressure loss warning message
appears in the multifunction display:
R observe the instructions in the display mes-
sages (Y page 239).
R check the tire for damage.
R if driving on, observe the following notes.
The driving distance possible in run-flat mode 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 dis- tance possible depends upon:
R vehicle speed
R road condition
R outside temperature
The driving distance possible in run-flat mode may be reduced by extreme driving condi-
tions/maneuvers, or it can be increased
through a moderate style of driving.
The driving distance possible in run-flat mode
is counted from the moment the tire pressure loss warning appears in the multifunction dis-
play. Flat tire
301Roadside Assistance

You must not exceed a maximum speed of
50 mph (80 km/h).
When replacing one or all tires, please
observe the following specifications for your
vehicle's tires:
R size
R type and
R the "MOExtended" mark
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 (sum-
mer or winter tire).
Vehicles equipped with MOExtended tires are
not equipped with a TIREFIT kit at the factory. It is therefore recommended that you addi-
tionally 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 may
be obtained from a qualified specialist work-
shop.
Important safety notes G
WARNING
When driving in emergency mode, the driving characteristics deteriorate, e.g. when corner-
ing, 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:
R you hear banging noises.
R the vehicle starts to shake.
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 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 TIREFIT is a tire sealant.
You can use TIREFIT to seal punctures of up to
0.16 in (4 mm), particularly those in the tire
tread. You can use TIREFIT at outside tem-
peratures down to Ò4 ‡ (Ò20 †). G
WARNING
In the following situations, the tire sealant is
unable to provide sufficient breakdown assis- tance, as it is unable to seal the tire properly:
R there are cuts or punctures in the tire larger
than those mentioned above.
R the wheel rim is damaged.
R you have driven at very low tire pressures or
on a flat tire.
There is a risk of an accident.
Do not drive the vehicle. Contact a qualified
specialist workshop. G
WARNING
The tire sealant is harmful and causes irrita-
tion. 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:
R Rinse off the tire sealant from your skin
immediately with water.
R If the tire sealant comes into contact with
your eyes, immediately rinse them thor-
oughly with clean water.
R If tire sealant is swallowed, immediately
rinse your mouth out thoroughly and drink
plenty of water. Do not induce vomiting,
and seek medical attention immediately.
R Immediately change out of clothing which
has come into contact with tire sealant.
R If an allergic reaction occurs, seek medical
attention immediately. 302
Flat tireRoadside Assistance

Useful information
i This Operator's Manual describes all
models and all standard and optional equip- ment 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.
i Read the information on qualified special-
ist workshops (Y page 24). Important safety notes
G
WARNING
If wheels and tires of the wrong size are used, the wheel brakes or suspension components
may be damaged. There is a risk of an acci-
dent.
Always replace wheels 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
A flat tire severely impairs the driving, steer-
ing and braking characteristics of the vehicle.
There is a risk of accident.
Tires without run-flat characteristics:
R do not drive with a flat tire.
R immediately replace the flat tire with your
emergency spare wheel or spare wheel, or
consult a qualified specialist workshop. Tires with run-flat characteristics:
R pay attention to the information and warn-
ing notices on MOExtended tires (tires with
run-flat characteristics).
Accessories that are not approved for your
vehicle by Mercedes-Benz or are not being
used correctly can impair the operating
safety.
Before purchasing and using non-approved
accessories, visit a qualified specialist work-
shop and inquire about:
R suitability
R legal stipulations
R factory recommendations
Information on the sizes and types of wheels
and tires for your vehicle can be found under "Wheel/tire combinations" (Y page 345).
Information on tire pressure can be found:
R on the vehicle's Tire and Loading Informa-
tion placard on the B-pillar (Y page 329)
R on the tire pressure label on the fuel filler
flap (Y page 159)
R under "Tire pressure" (Y page 322) Operation
Information on driving
Check the tire pressure when the vehicle is
heavily laden and adjust prior to a trip.
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 sus-
pect 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 the unusual handling characteristics.
If you find no signs of damage, have the tires and wheels checked at a qualified specialist
workshop.
When parking your vehicle, make sure that
the tires do not get deformed by the curb or 318
OperationWheels and tires

approximately
áin(1.6 mm) has been
re ached. If this is the case, the tire is so worn
that it must be 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 dif-
ferent type or make in the event of a flat
tire. Observe here the "MOExtended tires
(tires with run-flat characteristics)" section (Y page 301).
R Only mount tires of the correct size onto
the wheels.
R Break in new tires at moderate speeds for
the first 60 miles (100 km). 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 lat-
est, 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 a total loss of
pressure in one or more tires.
MOExtended tires may only be used in con-
junction with an active tire pressure loss
warning system or with an active tire pressure
monitor and on wheels specifically tested by
Mercedes-Benz.
Notes on driving with MOExtended tires with
a flat tire (Y page 301).
Vehicles equipped with MOExtended tires are
not equipped with a TIREFIT kit at the factory.
It is therefore recommended that you addi-
tionally 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 may be obtained from a qualified specialist work-
shop. Winter operation
General notes
Have your vehicle winter-proofed at a quali-
fied specialist workshop at the onset of win-
ter.
Observe the notes in the "Changing a wheel"
section (Y page 341). Driving with summer tires
At temperatures below 45 ‡(+7 †), summer
tires lose elasticity and therefore traction and
braking power. Change the tires on your vehi- cle to M+S tires. Using summer tires at very
cold temperatures could cause cracks to
form, thereby damaging the tires perma-
nently. Mercedes-Benz cannot accept
responsibility for this type of damage. G
WARNING
Damaged tires can cause tire inflation pres-
sure loss. As a result, you could lose control of your vehicle. There is a risk of accident.
Check the tires regularly for signs of damage
and replace any damaged tires immediately. M+S tires
G
WARNING
M+S tires with a tire tread depth of less than
ã in (4 mm) are not suitable for use in winter
and do not provide sufficient traction. There is
a risk of an accident.
M+S tires with a tread depth of less than ãin
(4 mm) must be replaced immediately.
At temperatures below 45 ‡(+7 †), use win-
ter tires or all-season tires. Both types of tire are identified by the M+S marking.
Only winter tires bearing the isnowflake
symbol in addition to the M+S marking pro- 320
Winter operationWheels and tires

vide the best possible grip in wintry road con-
ditions. Only these tires will allow driving
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 charac-
teristics.
Always observe the maximum permissible
speed specified for the M+S tires you have
mounted.
When you have mounted the M+S tires:
X Check the tire pressures (Y page 322).
X Restart the tire pressure monitor
(Y page 328).
X Restart the tire pressure loss warning sys-
tem (Canada) (Y page 326) or restart the
tire pressure monitor (USA, Canada)
(Y page 328). 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 a risk 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".
! Vehicles with steel wheels:
if you
mount snow chains on steel wheels, you
may damage the hub caps. Remove the hub caps from the relevant wheels before
mounting the snow chains.
For safety reasons, Mercedes-Benz recom-
mends that you only use snow chains that
have been specially approved for your vehicle by Mercedes-Benz, or are of a correspondingstandard of quality. For more information,
please contact a qualified specialist work-
shop.
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 345).
R Only use snow chains when driving on
roads completely covered by snow.
Remove the snow chains as soon as possi-
ble when you come to a road that is not
snow-covered.
R Local regulations may restrict the use of
snow chains. Observe the appropriate reg-
ulations 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 184).
You may wish to deactivate ESP ®
when pull-
ing away with snow chains installed
(Y page 67). You can thereby allow the wheels
to spin in a controlled manner, achieving an
increased driving force (cutting action). Winter operation
321Wheels and tires Z