Get Breakdown assistance -> Flat tire Guide for Mercedes CLA 4 Door Third Generation (2025-2026)

First-aid kit (so-sided) overview

Depending on the vehicle version, rst-aid kit

(so-sided) 1 is located in the stowage net on

the le-hand side of the trunk or under the trunk

oor.

Flat tire

Notes on at tires

WARNING Risk of accident due to a at

tire

A at tire severely aects the driving charac-

teristics as well as steering and braking.

Tires without run-at characteristics:

Do not drive on with a at tire.

Change the at tire immediately with an

emergency spare wheel or spare wheel.

Alternatively, consult a qualied special-

ist workshop.

Tires with run-at characteristics:

Observe the information and warning

notes on MOExtended tires (run-at

tires).

In the event of a at tire, you have the following

options depending on your vehicle's equipment:

Vehicles with MOExtended tires: it is possible

to continue your journey for a short period of

time. Make sure you observe the notes on

MOExtended tires (run-at tires)

(/ page 294).

Vehicles with a TIREFIT kit: you can seal the

tire so that it is possible to continue your jour-

ney for a short period of time. To do this, use

the TIREFIT kit (/ page 295).

Vehicles with Mercedes me connect: you can

make a call for breakdown assistance via the

overhead control panel in the case of a break-

down (/ page 255).

All vehicles: change the wheel (/ page 338).

The emergency spare wheel is available only

in certain countries (/ page 343).

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 on your vehicle that do not

feature run-at characteristics, e.g. winter

tires. A TIREFIT kit may be obtained from a

qualied specialist workshop.

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293

Vehicles with a Mercedes-Benz emergency

call system that are not equipped with a

TIREFIT kit: in the event of a at tire, contact

the Customer Assistance Center for the

Mercedes-Benz emergency call system .

Notes on MOExtended tires (run-at tires)

WARNING Risk of accident when driving in

limp-home mode

When driving in emergency mode the handling

characteristics are impaired.

Do not exceed the specied maximum

speed of the MOExtended tires.

Avoid any abrupt steering and driving

maneuvers as well as driving over obsta-

cles (curbs, pot holes, o-road). This

applies, in particular, to a loaded vehicle.

Stop driving in the emergency mode if

you notice:

Banging noise

Vehicle vibration

Smoke which smells like rubber

Continuous ESP

intervention

Cracks in the tire side walls

Aer driving in emergency mode, have

the rims checked by a qualied specialist

workshop with regard to their further

use.

The defective tire must be replaced in

every case.

With MOExtended tires (run-at tires), you can

continue to drive your vehicle even if there is a

total loss of pressure in one or more tires. How-

ever, the tire aected must not show any clearly

visible damage.

You can recognize MOExtended tires by the

MOExtended marking which appears on the side

wall of the tire.

Vehicles with tire pressure loss warning system:

MOExtended tires may only be used in conjunc-

tion with an activated tire pressure loss warning

system.

Vehicles with tire pressure monitoring system:

MOExtended tires may only be used in conjunc-

tion with an activated tire pressure monitoring

system.

If a pressure loss warning message appears in the

driver's display, proceed as follows:

Check the tire for damage.

If driving on, observe the following notes.

Driving distance possible in emergency mode

aer the pressure loss warning:

Load condition Driving distance possi-

ble in emergency mode

Partially laden 50 miles (80 km)

Fully laden 19 miles (30 km)

The driving distance possible in emergency mode

may vary depending on the driving style. Observe

the maximum permissible speed of 50 mph

(80 km/h).

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If a tire has gone at and cannot be replaced with

an MOExtended tire, you can use a standard tire

as a temporary measure.

TIREFIT kit storage location

The TIREFIT kit is located under the trunk oor.

Tire sealant bottle

Tire ination compressor

Depending on the vehicle version, the TIREFIT kit

may also be located in other positions under the

trunk oor.

Using the TIREFIT kit

Requirements

Tire sealant bottle and tire inator compressor

are ready for use (/ page 295).

TIREFIT sticker is present.

Gloves are present.

You can use TIREFIT tire sealant to seal perfora-

tion damage of up to 0.16 in (4 mm), particularly

those in the tire tread. You can use TIREFIT in out-

side temperatures down to -4 °F (-20 °C).

WARNING Risk of accident when using

tire sealant

The tire sealant may be unable to seal the tire

properly, especially in the following cases:

There are large cuts or punctures in the

tire (larger than damage previously men-

tioned)

The wheel rims have been damaged

Aer journeys with very low tire pressure

or with at tires

Do not continue driving.

Consult a qualied specialist workshop.

WARNING Risk of injury and poisoning

from tire sealant

The tire sealant is harmful and causes irrita-

tion. Do not allow it to come into contact with

the skin, eyes or clothing, and do not swallow

it. Do not inhale tire sealant fumes. Keep the

tire sealant away from children.

If you come into contact with the tire sealant,

observe the following:

Rinse o the tire sealant from your skin

immediately using water.

If tire sealant gets into your eyes, thor-

oughly rinse out the eyes using clean

water.

If tire sealant has been swallowed, imme-

diately rinse out the mouth thoroughly

and drink plenty of water. Do not induce

vomiting and seek medical attention

immediately.

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295

Change out of any clothes contaminated

with tire sealant immediately.

If allergic reactions occur, seek medical

attention immediately.

NOTE Overheating due to the tire ination

compressor running too long

Do not run the tire ination compressor

for longer than ten minutes without inter-

ruption.

Comply with the manufacturer's safety notes on

the sticker on the tire ination compressor.

Have the tire sealant bottle replaced in a qualied

specialist workshop every ve years.

Do not remove any foreign objects that have

entered the tire.

Ax part 1 of the TIREFIT sticker to the

instrument cluster within the driver's eld of

vision.

Ax part 2 of the TIREFIT sticker near the

valve on the wheel with the defective tire.

Pull plug 4 with the cable and hose 5 out

of the tire ination compressor housing.

Push the plug of hose 5 into ange 6 of tire

sealant bottle

1 until the plug engages.

Place tire sealant bottle 1 head downwards

into recess

2 of the tire ination compressor.

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Remove the valve cap from valve 7 on the

faulty tire.

Screw lling hose 8 onto valve 7.

Insert plug 4 into a 12‑V‑socket in your vehi-

cle.

Switch on the vehicle.

Switch on the tire ination compressor using

On/O switch 3.

The tire is inated. First, tire sealant is pum-

ped into the tire. The pressure may briey rise

to approximately 500 kPa (5.0 bar/73 psi).

Do not switch o the tire ination compressor

during this phase!

Let the tire ination compressor run for a max-

imum of ten minutes.

The tire should then have attained a tire pres-

sure of at least 200 kPa (2.0 bar/29 psi).

If tire sealant leaks out, make sure you clean the

aected area as quickly as possible. It is prefera-

ble to use clean water.

If you get tire sealant on your clothing, have it

cleaned as soon as possible with perchloroethy-

lene.

If, aer ten minutes, a tire pressure of 200 kPa

(2.0 bar/29 psi) has not been attained:

Switch o the tire ination compressor.

Unscrew the lling hose from the valve of the

defective tire.

Please note that tire sealant may leak out when

unscrewing the lling hose.

Drive forwards or in reverse very slowly for

approximately 33  (10 m).

Pump up the tire again.

Aer a maximum of ten minutes the tire pres-

sure must be at least 200 kPa (2.0 bar/

29 psi).

WARNING Risk of accident due to the

specied tire pressure not being achieved

If the specied tire pressure is not achieved

aer the specied time, the tire is too badly

damaged. The tire sealant cannot repair the

tire in this instance.

The braking characteristics as well as the driv-

ing characteristics may be greatly impaired.

Do not continue driving.

Consult a qualied specialist workshop.

If, aer ten minutes, a tire pressure of 200 kPa

(2.0 bar/29 psi) has been attained:

Switch o the tire ination compressor.

Unscrew the lling hose from the valve of the

defective tire.

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297

WARNING Risk of accident from driving

with sealed tires

A tire temporarily sealed with tire sealant

impairs the handling characteristics and is not

suitable for higher speeds.

Adapt your driving style accordingly and

drive carefully.

Do not exceed the maximum speed limit

with a tire that has been repaired using

tire sealant.

Observe the maximum permissible speed of

50 mph (80 km/h) for a tire sealed with tire

sealant.

NOTE Staining caused by leaking tire seal-

ant

Aer use, excess tire sealant may leak out

from the lling hose.

Therefore, place the lling hose in the

plastic bag that contained the TIREFIT

kit.

ENVIRONMENTAL NOTE Environmental

pollution caused by environmentally irre-

sponsible disposal

Tire sealant contains pollutants.

Have the tire sealant bottle disposed of

professionally, e.g. at an authorized

Mercedes-Benz Center.

Stow the tire sealant bottle and the tire ina-

tion compressor.

Pull away immediately.

Stop driving aer approximately ten minutes

and check the tire pressure using the tire

ination compressor.

The tire pressure must now be at least

130 kPa (1.3 bar/19 psi).

WARNING Risk of accident due to the

specied tire pressure not being attained

If the specied tire pressure is not reached,

the tire is too badly damaged. The tire sealant

cannot repair the tire in this instance.

The braking and driving characteristics may be

greatly impaired.

Do not continue driving.

Consult a qualied specialist workshop.

In cases such as the one mentioned above, con-

tact an authorized Mercedes-Benz Center. Or call

1-800-FOR-MERCedes (in the USA) or

1-800-387-0100 (in Canada).

To increase the tire pressure: switch on the

tire ination compressor.

To reduce the tire pressure: press pressure

release button 1 next to manometer 2.

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When the tire pressure is correct, unscrew the

lling hose from the valve of the sealed tire.

Screw the valve cap onto the valve of the

sealed tire.

Pull the tire sealant bottle out of the tire ina-

tion compressor.

The lling hose stays on the tire sealant bottle.

Drive to the nearest qualied specialist work-

shop and have the tire, tire sealant bottle and

lling hose replaced there.

Battery (vehicle)

Notes on the 12 V battery

WARNING Risk of an accident due to work

carried out incorrectly on the battery

Work carried out incorrectly on the battery

can, for example, lead to a short circuit. This

can restrict functions relevant for safety sys-

tems and impair the operating safety of your

vehicle.

You could lose control of the vehicle in the fol-

lowing situations in particular:

When braking

In the event of abrupt steering maneuvers

and/or when the vehicle's speed is not

adapted to the road conditions

In the event of a short circuit or a similar

incident, contact a qualied specialist

workshop immediately.

Do not drive on.

Always have work on the battery carried

out at a qualied specialist workshop.

Further information on ABS (/ page 169)

Further information on ESP

(/ page 170)

For safety reasons, Mercedes-Benz recommends

that you only use batteries which have been

approved for your vehicle by Mercedes-Benz.

All vehicles except vehicles with a lithium-ion bat-

tery

WARNING Risk of explosion due to elec-

trostatic charge

Electrostatic charge can ignite the highly

explosive gas mixture in the battery.

To discharge any electrostatic charge

that may have built up, touch the metal

vehicle body before handling the battery.

The highly ammable gas mixture is created while

the battery is charging and during starting assis-

tance.

WARNING Danger of chemical burns from

the battery acid

Battery acid is caustic.

Avoid contact with the skin, eyes or

clothing.

Do not lean over the battery.

Do not inhale battery gases.

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299

Breakdown assistance -> Flat tire for Your Mercedes CLA 4 Door Third Generation (2025-2026)

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