2014 MERCEDES-BENZ CLA flat tire

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).
Where will I find...?
First-aid kit
XOpen the trunklid.
XRemove first-aid kit.
iCheck the expiration date on first-aid
kitat least once a year. Replace the
contents if necessary, and replace missing
items.
Vehicle tool kit
General notes
Vehicles with a TIREFIT kit: the TIREFIT kit is
located in the stowage well under the trunk
floor.
Vehicles with a tire-changetool kit: the tire-
change tool kit is in the stowage well under
the trunk floor.
iApart from certain country-specific
variations, the vehicles are not equipped
with a tire-change tool kit. Some tools for
changing a wheel are specific to the
vehicle. For more information on which
tools are required and approved to perform
a wheel change on your vehicle, consult a
qualified specialist workshop.
Tools required for changingawheel may
include, for example:
RJack
RWheel chock
RLug wrench
Vehicles withaTIREFIT kit
Tire inflation compressor
Towing eye
"Tire sealantfiller bottle
XOpen the trunk lid.
XLift the trunk floor upwards (Ypage 259).
iTowing eyeis located under tire
inflation compressor.
Vehicles withatire-change tool kit
XOpen the trunk lid.
XLift the trunk floor upwards (Ypage 259).
XRemove the tire-change toolkit.
294Where will I find...?
Breakdown assistance

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

RImmediately change out of clothing which
has come into contact with tire sealant.
RIf an allergic reaction occurs, seek medical
attention immediately.
Using the TIREFITkit
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
temperatures down to4 ‡ (20 †).
TIREFIT sticker, 2-part
XDo not remove any foreign objects which
have penetrated the tire, e.g. screws or
nails.
XRemove the tire sealant bottle, the
accompanying TIREFIT sticker and the tire
inflation compressor from the stowage well
underneath the cargo compartment floor
(Ypage 294).
XAffix partof the TIREFIT sticker within
the driver's field of vision.
XAffix partof the TIREFIT sticker near the
valve on the wheel with the defective tire.
XRemove filler hose and plug"from the
bottom section of the tire inflation
compressor housing.
XSlide the yellow filler hose connector into
the mounting on yellow capof tire
sealant bottleuntil the plug engages.
XWith the sealing rings in front, slide yellow
capof tire sealant bottleinto the
mounting of tire inflation compressor
until the cap and both hooks engage.
XRemove the cap from valveon the faulty
tire.
XScrew filler hoseonto valve.
XInsert plug"into the socket of the
cigarette lighter (Ypage 262)orinto a 12 V
powersocket in your vehicle (Ypage 263).
XTurn the SmartKey to position1in the
ignition lock (Ypage 137).
XPress on/offswitch!on the tire inflation
compressor toON.
The tire inflationcompressor is switched
on. The tire is inflated.
Flat tire297
Breakdown assistance
Z

iFirst, tire sealant is pumped into the tire.
The pressure can briefly rise to
approximately 500 kPa (5 bar/73 psi).
Do notswitch off the tire inflation
compressor during this phase.
XLet the tire inflation compressor run for a
maximum of tenminutes. The tire should
thenhave attained a pressure of at least
200 kPa (2.0 bar/29 psi).
!Do notoperate the tire inflation
compressor for longer than ten minutes at
a time without a break. It may otherwise
overheat.
The tire inflation compressor can be
operated again once it has cooled down.
Ifapressure of 200 kPa(2.0 bar/29 psi) has
been attained after a maximum of after ten
minutes, see (Ypage 298).
Ifapressure of 200 kPa(2.0 bar/29 psi) has
not been attained after a maximum of ten
minutes, see (Ypage 298).
iIf tire sealant leaks out, allow it to dry.It
can then be removed like a layeroffilm.
If your clothes are soiled with tire sealant,
have themcleaned with perchloroethylene
at a dry cleaner as soon as possible.
Tire pressure not reached
Ifapressure of 200 kPa(2.0 bar/29 psi) has
not been achieved after ten minutes:
XSwitch off the tire inflation compressor.
XUnscrew the filler hose from the valve of
the faulty tire.
XVery slowly drive forwards or reverse
approximately 30 ft (10 m).
XPump up the tire again.
After a maximum of ten minutes, the tire
pressure must be at least 200 kPa (2.0 bar/
29 psi).
GWARNING
If the required tire pressure is not reached
after the specified time, the tire is too badly
damaged. The tire sealant cannot repair the
tire in this instance. Damaged tires and a tire
pressure that is too low can significantly
impair the vehicle's braking and driving
characteristics. There is a risk of accident.
Do not continue driving. Contact a qualified
specialist workshop.
Tire pressure reached
GWARNING
Atire temporarily sealed with tire sealant
impairs the driving characteristics and is not
suitable for higher speeds. There is a risk of
accident.
You should therefore adapt your driving style
accordingly and drive carefully. Do not exceed
the specified maximum speed with a tire that
has been repaired using tire sealant.
!After use, excess tire sealant may run out
of the filler hose. This could cause stains.
Therefore, place the filler hose in the plastic
bag that contained the TIREFIT kit.
HEnvironmental note
Have the used tire sealant bottle disposed of
professionally, e.g. ataqualified specialist
workshop.
Ifatire pressure of 200 kPa(2.0 bar/29 psi)
has beenachieved afterten minutes:
XSwitch off the tire inflation compressor.
XUnscrew the filler hose from the valve of
the faulty tire.
XStow the tire sealant bottle and the tire
inflation compressor.
XPull away immediately.
The maximum speed for a tire sealed with tire
sealant is 50 mph(80km/h). The upper part
of the TIREFIT sticker must be affixed to the
instrument cluster in the driver's field of
vision.
298Flat tire
Breakdown assistance

XStop after driving for approximately ten
minutes and check the tire pressure with
the tire inflation compressor.
The tire pressure mustnow be at least
130 kPa (1.3 bar/19 psi).
GWARNING
If the required tire pressure is not reached
after driving for a short period, the tire is too
badly damaged. The tire sealant cannot repair
the tire in this instance. Damaged tires and a
tire pressure that is too low can significantly
impair the vehicle's braking and driving
characteristics. There is a risk of accident.
Do not continue driving. Contact a qualified
specialist workshop.
XCorrect the tire pressure if it is still at least
130 kPa (1.3 bar/19 psi) (for the values,
see the Tire and Loading Information
placard on the driver's side B-pillar or tire
pressure table on the fuel filler flap).
XTo increase the tire pressure:switch on
the tire inflation compressor.
XTo reduce the tire pressure:depress
pressure release buttonnext to
pressure gauge.
XTo remove the tire sealant bottle from the
tire inflation compressor, press together
the locking tabs on the yellow cap.
XPull the tire sealant bottle out of the tire
inflation compressor.
The filler hose remains attached to the tire
sealant bottle.
XStow the tire sealant bottle and the tire
inflation compressor.
XDrive to the nearest qualified specialist
workshop and have the tire changed there.
XHave the tire sealant bottle and the filler
hose replaced as soon as possible at a
qualified specialist workshop.
XHave the tire sealant bottle replaced every
four years at a qualified specialist
workshop.
Battery (vehicle)
Important safety notes
Special tools and expert knowledge are
required when working on the battery, e.g.
removal and installing. You should therefore
have all work involving the battery carried out
at a qualified specialist workshop.
Battery (vehicle)299
Breakdown assistance
Z

!If DISTRONIC PLUS or the HOLD function
is activated, the vehicle brakes
automatically in certain situations. To
prevent damage to the vehicle, deactivate
DISTRONIC PLUS and the HOLD function in
the following or other similarsituations:
Rwhen towing the vehicle
Rin the car wash
!Only secure the tow rope or tow bar at the
towing eyes. Otherwise, the vehicle could
be damaged.
!Do not use the towing eyes for recovery
purposes as this could damage the vehicle.
If in doubt, recover the vehicle with a crane.
!When towing, pull away slowly and
smoothly. If the tractive power is too high,
the vehicles could be damaged.
!The vehicle can be towed a maximum of
30 miles (50km). The towing speed of
30 mph (50km/h) must not be exceeded.
If the vehicle has to be towed more than
30 miles (50km), the front axle must be
raised or the entire vehicle raised and
transported.
!Do not tow with sling-type equipment.
This could damage the vehicle.
!Vehicles with automatic transmission
must not be started by tow-starting. This
could otherwise damage the transmission.
It is better to have the vehicle transported
than to have it towed.
When towing a vehicle, the transmission must
be in positionN.
The battery must be connected and charged.
Otherwise, you:
Rcannot turn the SmartKey to position2in
the ignition lock
Rcannot shift the transmission to position
N.
iDeactivate the automatic locking feature
(Ypage 208). You could otherwise be
locked out when pushing or towing the
vehicle.
Installing/removing the towing eye
Installing the towing eye
XRemove the towing eye fromthe stowage
space.
The towing eye is located with the vehicle
tool kit under the trunk floor (Ypage 259).
Vehicles with the TIREFIT kit: the towing
eye is beneath the tire inflation
compressor.
XPress the mark on coverinwards in the
direction of the arrow.
XTake coveroff the opening.
XScrew in and tighten the towing eye
clockwise to the stop.
Removing the towing eye
XUnscrew and remove the towing eye.
XPosition the top of coverin the bumper
and press it in at the bottom until it
engages.
XPlace the towing eye in the stowage well
under the trunk floor (Ypage 259).
XVehicles with the TIREFIT kit: put back the
tire inflation compressor.
306Towing and tow-starting
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