Get Breakdown assistance -> Flat tyre Guide for Mercedes CLA 4 Door First Generation (2013-2018)

If possible, bring the front wheels into the

straight-ahead position.

Switch off the engine.

Vehicles without KEYLESS-GO: remove the

key from the ignition lock.

Vehicles with KEYLESS-GO start-function

or KEYLESS-GO: open the driver's door.

The vehicle electronics now have status 0.

This is the same as the key having been

removed.

Vehicles with KEYLESS-GO start function

or KEYLESS-GO: remove the Start/Stop but-

ton from the ignition lock (Y page 133).

Make sure that the passengers are not endan-

gered as they get out of the vehicle. Make

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.

Get out of the vehicle. Pay attention to traffic

conditions when doing so.

Close the driver's door.

Place the warning triangle a suitable distance

away (Y page 293). Observe legal require-

ments.

MOExtended tyres (tyres with run-flat

characteristics)

General notes

With MOExtended tyres (tyres with run-flat char-

acteristics), you can continue to drive your vehi-

cle even if there is a total loss of pressure in one

or more tyres. The affected tyre must not show

any clearly visible damage.

You can recognise MOExtended tyres by the

"MOExtended" marking that appears on the tyre

sidewall. You will find this marking next to the

tyre size designation, the load-bearing capacity

and the speed index.

MOExtended tyres may be used only in conjunc-

tion with an activated tyre pressure loss warning

system or tyre pressure monitor.

If a pressure loss warning message appears

in the multifunction display:

observe the instructions in the display mes-

sages (Y page 239)

check the tyre for damage

if driving on, observe the following notes

The driving distance possible in run-flat mode is

approximately 80 km when the vehicle is parti-

ally laden and approximately 30 km when the

vehicle is fully laden.

In addition to the vehicle load, the driving dis-

tance possible in run-flat mode depends on the:

vehicle speed

road condition

outside temperature

The driving distance possible in run-flat mode

may be reduced by extreme driving conditions/

manoeuvres, 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 tyre pressure loss

warning appears on the multifunction display.

You must not exceed a maximum speed of

80 km/h.

When replacing one or all tyres, observe the fol-

lowing specifications for your vehicle's tyres:

size

type and

the "MOExtended" marking

If a tyre has gone flat and cannot be replaced

with an MOExtended tyre, a standard tyre may

be used as a temporary measure. Make sure

that you use the proper size and type (summer

or winter tyre).

Vehicles with MOExtended tyres are not equip-

ped with a TIREFIT kit at the factory. It is there-

fore recommended that you additionally equip

your vehicle with a TIREFIT kit if you fit tyres that

do not feature run-flat characteristics, e.g. win-

ter tyres. A TIREFIT kit can be obtained from a

qualified specialist workshop.

Important safety notes

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 accident.

Do not exceed the stated maximum speed.

Avoid abrupt steering and driving manoeu-

vres, and driving over obstacles (kerbs, pot-

holes, off-road). This applies in particular to a

laden vehicle.

Flat tyre

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Breakdown assistance

Stop driving in emergency mode if:

you hear banging noises.

the vehicle starts to shake.

you see smoke and smell rubber.

ESP

is intervening constantly.

there are tears in the sidewalls of the tyre.

After driving in emergency mode, have the

wheel rims checked at a qualified specialist

workshop with regard to their further use. The

faulty tyre must be replaced.

TIREFIT kit

Important safety notes

TIREFIT is a tyre sealant.

You can use TIREFIT to seal punctures of up to

4 mm, particularly those in the tyre tread. You

can use TIREFIT at outside temperatures down

to Ò20 †.

WARNING

In the following situations, the tyre sealant is

unable to provide sufficient breakdown assis-

tance, as it is unable to seal the tyre properly:

there are cuts or punctures in the tyre

larger than those mentioned above.

the wheel rim is damaged.

you have driven at very low tyre pressures

or on a flat tyre.

There is a risk of an accident.

Do not drive any further. Contact a qualified

specialist workshop.

WARNING

The tyre 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 tyre sealant away

from children. There is a risk of injury.

If you come into contact with the tyre sealant,

observe the following:

Rinse off the tyre sealant from your skin

immediately with water.

If the tyre sealant comes into contact with

your eyes, immediately rinse them thor-

oughly with clean water.

If tyre sealant is swallowed, immediately

rinse your mouth out thoroughly and drink

plenty of water. Do not induce vomiting,

and seek medical attention immediately.

Immediately change out of clothing which

has come into contact with tyre sealant.

If an allergic reaction occurs, seek medical

attention immediately.

After use, excess tyre sealant may run out of

the filler hose. This could cause stains.

Therefore, place the filler hose in the plastic

bag which contained the TIREFIT kit.

Environmental note

Have the used tyre sealant bottle disposed of

professionally, e.g. at a qualified specialist

workshop.

Do not operate the tyre inflation compres-

sor for longer than ten minutes at a time with-

out a break. It may otherwise overheat.

The tyre inflation compressor can be oper-

ated again once it has cooled down.

Comply with the manufacturer's safety instruc-

tions on the sticker on the tyre inflation com-

pressor.

Using the TIREFIT kit

296

Flat tyre

Breakdown assistance

Do not remove any foreign objects that have

penetrated the tyre, e.g. screws or nails.

Remove the tyre sealant bottle, the accom-

panying TIREFIT sticker and the tyre inflation

compressor from the stowage space under

the boot floor (Y page 294).

Affix part : of the TIREFIT sticker to the

instrument cluster within the driver's field of

vision.

Affix part ; of the TIREFIT sticker near the

valve on the wheel with the defective tyre.

Remove filler hose B and connector = from

the bottom section of tyre inflation compres-

sor housing ;.

Slide the yellow filler hose connector into the

mounting on yellow cap A of tyre sealant

bottle : until the connector engages.

With sealing rings in front, slide yellow cap A

of tyre sealant bottle : into the holder of tyre

inflation compressor ;.

Yellow cap A must engage in both hooks.

Remove cap from valve C on faulty tyre.

Screw filler hose D onto valve C.

Insert connector = into a 12 V socket in your

vehicle.

Observe the notes on sockets (Y page 276).

Turn the key to position 1 in the ignition lock

(Y page 133).

Press on and off switch ? on the tyre inflation

compressor to ON.

The tyre inflation compressor is switched on.

The tyre is inflated.

First, tyre sealant is pumped into the tyre. The

pressure may briefly rise to approximately

500 kPa (5 bar/73 psi).

Do not switch off the tyre inflation com-

pressor during this phase.

Let the tyre inflation compressor run for a

maximum of ten minutes. The tyre should

then have attained a pressure of at least

200 kPa (2.0 bar/29 psi).

If a pressure of 200 kPa (2.0 bar/29 psi) has

been attained after ten minutes, see "Tyre pres-

sure reached" (Y page 298).

If a tyre pressure of 200 kPa (2.0 bar/29 psi) has

not been attained after ten minutes, see "Tyre

pressure not reached" (Y page 297).

If tyre sealant leaks out, make sure you clean the

affected area as quickly as possible. It is pref-

erable to use clear water.

If you get tyre sealant on your clothing, have it

cleaned as soon as possible with perchloroethy-

lene.

Tyre pressure not reached

If a tyre pressure of 200 kPa (2.0 bar/29 psi) has

not been attained after ten minutes:

Switch off the tyre inflation compressor.

Unscrew the filler hose from the valve of the

faulty tyre.

Please note that tyre sealant may leak out

when unscrewing the filler hose.

Very slowly drive forwards or reverse approx-

imately 10 m.

Pump up the tyre again.

After a maximum of ten minutes, the tyre

pressure must be at least 200 kPa (2.0 bar/

29 psi).

WARNING

If the required tyre pressure is not reached

after the specified time, the tyre is too badly

damaged. The tyre sealant cannot repair the

tyre in this instance. Damaged tyres and a tyre

Flat tyre

297

Breakdown assistance

pressure that is too low can significantly

impair the vehicle's braking and driving char-

acteristics. There is a risk of accident.

Do not continue driving. Contact a qualified

specialist workshop.

Tyre pressure reached

WARNING

A tyre temporarily sealed with tyre 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 tyre that

has been repaired using tyre sealant.

The maximum permissible speed for a tyre

sealed with tyre sealant is 80 km/h. The upper

part of the TIREFIT sticker must be affixed to the

instrument cluster where it will be easily seen by

the driver.

If a tyre pressure of 200 kPa (2.0 bar/29 psi) has

been attained after ten minutes:

Switch off the tyre inflation compressor.

Unscrew the filler hose from the valve of the

faulty tyre.

Please note that tyre sealant may leak out

when unscrewing the filler hose.

Stow the tyre sealant bottle, the tyre inflation

compressor and the warning triangle.

Pull away immediately.

Stop after driving for approximately ten

minutes and check the tyre pressure with the

tyre inflation compressor.

The tyre pressure must now be at least

130 kPa (1.3 bar/19 psi).

WARNING

If the required tyre pressure is not reached

after driving for a short period, the tyre is too

badly damaged. The tyre sealant cannot

repair the tyre in this instance. Damaged tyres

and a tyre pressure that is too low can signif-

icantly impair the vehicle's braking and driv-

ing characteristics. There is a risk of accident.

Do not continue driving. Contact a qualified

specialist workshop.

In your vehicle, you will find a sticker with

the Mercedes-Benz Service24h telephone

number, e.g. on the B-pillar on the driver's

side.

Correct the tyre pressure if it is still at least

130 kPa (1.3 bar/19 psi). See the tyre pres-

sure table on the fuel filler flap for values.

To increase the tyre pressure: switch on

the tyre inflation compressor.

When the tyre pressure is correct, unscrew

the filler hose from the valve of the sealed

tyre.

Please note that tyre sealant may leak out

when unscrewing the filler hose.

Screw the valve cap onto the tyre valve of the

sealed tyre.

To remove the tyre sealant bottle from the

tyre inflation compressor, press together the

locking tabs on the yellow cap.

Pull the tyre sealant bottle out of the tyre

inflation compressor.

The filler hose stays on the tyre sealant bottle.

298

Flat tyre

Breakdown assistance

Drive to the nearest qualified specialist work-

shop and have the tyre changed there.

Have the tyre sealant bottle and the filler hose

replaced as soon as possible at a qualified

specialist workshop.

Have the tyre sealant bottle replaced every

four years at a qualified specialist workshop.

Battery (vehicle)

Important safety notes

Work on the battery, e.g. removing or fitting,

requires specialist knowledge and the use of

special tools. Therefore, always have work on

the battery carried out at a qualified specialist

workshop.

WARNING

Work carried out incorrectly on the battery

can lead, for example, to a short circuit and

thus damage the vehicle electronics. This can

lead to function restrictions applying to

safety-relevant systems, e.g the lighting sys-

tem, the ABS (anti-lock braking system) or the

ESP

(Electronic Stability Program). The oper-

ating safety of your vehicle may be restricted.

You could lose control of the vehicle, for

example:

when braking

in the event of abrupt steering manoeuvres

and/or when the vehicle's speed is not

adapted to the road conditions

There is a risk of an accident.

In the event of a short circuit or a similar inci-

dent, contact a qualified specialist workshop

immediately. Do not drive any further. Always

have work on the battery carried out at a

qualified specialist workshop.

Further information about ABS (Y page 66) and

ESP

(Y page 69).

WARNING

Electrostatic build-up can lead to the creation

of sparks, which could ignite the highly explo-

sive gases of a battery. There is a risk of an

explosion.

Before handling the battery, touch the vehicle

body to remove any existing electrostatic

build-up.

The highly flammable gas mixture is created

while the battery is charging and when jump-

starting.

Always make sure that neither you nor the bat-

tery is electrostatically charged. Electrostatic

charge is created, for example:

by wearing synthetic-fibre clothing

by friction between clothing and the seat

if you pull or push the battery across carpet or

other synthetic materials

if you rub the battery with a cloth

WARNING

During the charging process, a battery produ-

ces hydrogen gas. If a short circuit occurs or

sparks are created, the hydrogen gas can

ignite. There is a risk of an explosion.

Make sure that the positive terminal of a

connected battery does not come into con-

tact with vehicle parts.

Never place metal objects or tools on a bat-

tery.

It is important that you observe the descri-

bed order of the battery terminals when

connecting and disconnecting a battery.

When jump-starting, make sure that the

battery poles with identical polarity are

connected.

It is particularly important to observe the

described order when connecting and dis-

connecting the jump leads.

Never connect or disconnect the battery

terminals while the engine is running.

WARNING

Battery acid is caustic. There is a risk of injury.

Avoid contact with the skin, eyes or clothing.

Do not breathe in any battery gases. Do not

lean over the battery. Keep the batteries out

of the reach of children. Immediately rinse off

battery acid thoroughly with plenty of clean

water and seek medical attention at once.

Battery (vehicle)

299

Breakdown assistance

Breakdown assistance -> Flat tyre for Your Mercedes CLA 4 Door First Generation (2013-2018)

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