Get Wheels and tires -> Changing a wheel Guide for Mercedes CLA 4 Door Third Generation (2025-2026)

Distribution of vehicle occupants: distribution of

vehicle occupants over designated seat positions

in a vehicle.

Maximum permissible payload weight: nominal

load and luggage load plus 150 lb (68 kg) multi-

plied by the number of seats in the vehicle.

Changing a wheel

Notes on selecting, installing and replacing tires

NOTE Mercedes-AMG vehicles

Observe the notes in the Supplement.

You could otherwise fail to recognize

dangers.

WARNING Risk of accident due to incor-

rect wheel and tire dimensions

If wheels and tires of the wrong size are instal-

led, the service brakes or components in the

brake system and in the wheel suspension

may be damaged.

Always replace wheels and tires with

ones that fulll the specications of the

original part.

For wheels, pay attention to the following:

Designation

Type

For tires, pay attention to the following:

Designation

Manufacturer

Type

WARNING Risk of injury through exceed-

ing the specied tire load-bearing capa-

city or the permissible speed rating

Exceeding the specied tire load rating or the

permissible speed rating may lead to tire dam-

age and to the tires bursting.

Therefore, only use tire types and sizes

approved for your vehicle model.

Observe the tire load rating and speed

rating required for your vehicle.

NOTE Vehicle and tire damage caused by

non-approved tire types and sizes

For safety reasons, only use tires, wheels and

accessories which have been specially

approved by Mercedes-Benz for your vehicle.

These tires are specially adapted to the active

safety systems, such as ABS, ESP

and

4MATIC, and marked as follows:

MO = Mercedes-Benz Original

MOE = Mercedes-Benz Original Extended

(tires with run-at characteristics for cer-

tain wheels only)

MO1 = Mercedes-Benz Original (only cer-

tain AMG tires)

Otherwise, certain properties, such as driving

characteristics, vehicle noise emissions, con-

sumption, etc. could be adversely aected.

Furthermore, other tire sizes could result in

the tires rubbing against the body and axle

components when loaded. This could result in

damage to the tire or the vehicle.

334

Wheels and tires

Only use tires, wheels and accessories that

have been checked and recommended by

Mercedes-Benz.

NOTE Risk to driving safety from retrea-

ded tires

Retreaded tires are neither tested nor recom-

mended by Mercedes-Benz, since previous

damage cannot always be detected on retrea-

ded tires.

For this reason driving safety cannot be guar-

anteed.

Do not use used tires if you have no

information about their previous usage.

NOTE Possible wheel and tire damage

when driving over obstacles

Large wheels have a smaller section width. As

the section width decreases, the risk of

wheels and tires being damaged when driving

over obstacles increases.

Avoid obstacles or drive especially care-

fully.

Reduce your speed when driving over

curbs, speed bumps, manhole covers

and potholes.

Avoid particularly high curbs.

NOTE Possible wheel and tire damage

when parking on curbs or in potholes

Parking on curbs or in potholes can damage

the wheels and tires.

Only park on as level a surface as possi-

ble.

Avoid curbs and potholes when parking.

NOTE Damage to electronic components

due to the use of mounting tools

Vehicles with a tire pressure monitoring sys-

tem: there are electronic components in the

wheel.

Using mounting tools in the area of the valve

may damage the electronic components.

Tire mounting tools should not be used

in the area of the valve.

Always have tires changed at a qualied

specialist workshop.

NOTE Damage to summer tires at low

ambient temperatures

At low ambient temperatures, tears could form

when driving with summer tires, causing per-

manent damage to the tires.

At temperatures below 45 °F (7 °C) use

i M+S tires.

Accessory parts which are not approved for your

vehicle by Mercedes-Benz, or which are not used

correctly, can impair the operating safety.

Before purchasing and using non-approved acces-

sories, visit a qualied specialist workshop and

enquirer about:

Suitability

Legal stipulations

Factory recommendations

Wheels and tires

335

WARNING Risk of accidents with sports

tires

The special tire tread in combination with the

optimized tire compound means that the risk

of skidding or hydroplaning on wet roads is

increased.

In addition, the tire grip is greatly reduced at a

low outside temperature and tire running tem-

perature.

Switch on ESP

and adapt your driving

style accordingly.

Use iM+S tires at outside tempera-

tures of less than 45°F (7°C).

Only use tires suitable for the intended

use.

Observe the following when selecting, installing

and replacing tires:

Furthermore, the use of certain tire types in

certain regions and areas of operation can be

highly benecial.

Only use tires and wheels of the same type

(summer tires, winter tires, MOExtended tires)

and same make.

Only install wheels of the same size on one

axle (le and right).

The only permitted exception is installation of

a dierent wheel size in the event of a at tire,

in order to drive to a specialist workshop.

Vehicles with a tire pressure monitoring sys-

tem: all installed wheels must be equipped

with functioning sensors for the tire pressure

monitoring system.

At temperatures below 45 °F (7 °C), use win-

ter tires or all-season tires marked i M+S

for all wheels.

Winter tires provide the best possible grip in

wintry road conditions.

M+S tires: only use tires with the same tread.

Observe the maximum permissible speed for

the installed M+S tires.

If the tire's maximum speed is below that of

the vehicle, this must be indicated by an

appropriate label in the driver's eld of vision.

Break in new tires at moderate speeds for the

rst 60 miles (100 km).

Replace the tires aer six years at the latest,

regardless of wear.

When replacing with tires that do not have

run-at characteristics: Vehicles with

MOExtended tires are not equipped with a

TIREFIT kit at the factory. Equip the vehicle

with a TIREFIT kit aer replacing with tires that

do not feature run-at characteristics, e.g.

winter tires.

For more information on wheels and tires, contact

a qualied specialist workshop.

Be sure to also observe the following related

aspects:

Notes on tire pressure (/ page 315)

Tire and loading information placard

(/ page 322)

Tire size designation, load-bearing capacity,

speed rating and load index (/ page 329)

Tire pressure table(/ page 317)

336

Wheels and tires

Notes on the emergency spare wheel

(/ page 343)

Notes on rotating tires

WARNING Risk of injury through dierent

wheel sizes

Rotating the front and rear wheels can

severely impair the driving characteristics.

The wheel brakes or suspension components

may also be damaged.

Rotate front and rear wheels only if the

wheels and tires are of the same dimen-

sions.

Observe the instructions and safety notes on

"Changing a wheel" (/ page 334).

The wear patterns on the front and rear tires dif-

fer:

front tires wear more on the tire shoulder

rear tires wear more in the center of the tire

Do not drive with tires that have too little tread

depth. This signicantly reduces traction on wet

roads (hydroplaning).

On vehicles that have the same front and rear

wheel size, rotate the tires according to the inter-

vals in the tire manufacturer's warranty book in

your vehicle documents. If this is not available,

rotate the tires every 3,000 to 6,000 miles

(5,000 to 10,000 km), depending on the wear.

Ensure that the direction of rotation is main-

tained.

Notes on storing wheels

When storing wheels, observe the following notes:

Aer removing wheels, store them in a cool,

dry and preferably dark place.

Protect the tires from contact with oil, grease

or fuel.

Overview of the tire-change tool kit

NOTE Mercedes-AMG vehicles

Observe the notes in the Supplement.

You could otherwise fail to recognize

dangers.

Apart from some country-specic variants, vehi-

cles are not equipped with a tire-change tool kit.

Consult a qualied specialist workshop to nd out

which wheel change tools are necessary and

approved for changing a wheel on your vehicle.

You require the following tools, forexample, to

change a wheel:

Jack

Chock

Lug wrench

Alignment bolt

The tire-change tool kit is located in tool bag

in the trunk.

Wheels and tires

337

Depending on the vehicle equipment, the tool

bag may be located at other positions in the

trunk.

When stowing the tool bag, make sure that it

is adequately secured.

The tool bag contains:

Jack

Gloves

Lug wrench

Alignment bolt

Folding chock

Ratchet for jack

Preparing the vehicle for a wheel change

Requirements

The vehicle is not on a slope.

The vehicle is on solid, non-slippery and level

ground.

The required wheel changing tools are on

board.

If your vehicle is not equipped with wheel

changing tools, consult a qualied specialist

workshop to nd out about suitable tools.

Apply the electric parking brake manually.

Move the front wheels to the straight-ahead

position.

Shi the transmission to position j.

Switch o the vehicle.

Make sure that the vehicle cannot be started.

Place chocks or other suitable items under the

wheel that is diagonally opposite the wheel

you wish to change.

If necessary, remove the hub cap/hub cover

(/ page 338).

Raise the vehicle (/ page 339).

Removing and installing the wheel trim/hub caps

Requirements

The vehicle is prepared for a wheel change

(/ page 338).

Plastic hub cap

To remove:

Turn the center cover of the hub cap counter-

clockwise and remove the hub cap.

To install:

Make sure that the center cover of the hub

cap is turned counter-clockwise.

Position the hub cap and turn the center cover

clockwise until the hub cap engages physically

and audibly.

338

Wheels and tires

Aluminum hub cap

To remove:

Position socket 2 from the tire-change tool

kit on hub cap

Position wheel wrench 3 on socket 2.

Using wheel wrench 3, turn hub cap 1

counter-clockwise and remove it.

To install:

Follow the instructions above in reverse order.

Specied tightening torque: 18 lb- (25 Nm).

Raising the vehicle when changing a wheel

Requirements

There are no persons in the vehicle.

The vehicle has been prepared for a wheel

change (/ page 338).

Important notes on using the jack:

Use only a vehicle-specic jack that has been

approved by Mercedes-Benz to raise the vehi-

cle.

The jack is only designed for raising and hold-

ing the vehicle for a short time while a wheel

is being changed and not for maintenance

work under the vehicle.

The jack must be placed on a rm, at and

non-slip surface. If necessary, use a large, at,

load-bearing, non-slip underlay.

The foot of the jack must be positioned verti-

cally under the jack support point.

Rules of conduct when the vehicle is raised:

Never place your hands or feet under the vehi-

cle.

Never lie under the vehicle.

Do not start the vehicle and do not release the

electric parking brake.

Do not open or close any doors or the trunk

lid.

Wheels and tires

339

Using the lug wrench, loosen the wheel bolts

on the wheel you wish to change by about one

full turn. Do not unscrew the screws com-

pletely.

Position of the jack support points

NOTE Mercedes-AMG vehicles

Observe the notes in the Supplement.

You could otherwise fail to recognize

dangers.

WARNING Risk of injury from incorrect

positioning of the jack

If you do not position the jack correctly at the

appropriate jacking point of the vehicle, the

jack could tip with the vehicle raised.

Only position the jack at the appropriate

jacking point of the vehicle. The base of

the jack must be positioned vertically

under the jacking point of the vehicle.

NOTE Damage to the vehicle due to the

jack

If you do not position the jack at the jack sup-

port points provided for this purpose, you

could damage your vehicle.

Only position the jack at the jack sup-

port points provided for this purpose.

Take the ratchet out of the tire-change tool kit

and place it on the hexagon nut of the jack so

that the letters "AUF" are visible.

340

Wheels and tires

Position support 2 of jack 4 on jack sup-

port point

If there is a total loss of pressure in a tire, it

may be possible that the jack cannot be posi-

tioned at jack support point

1. In this case,

unload the vehicle.

Turn ratchet 3 clockwise until support 2

sits completely on jack support point 1 and

the base of the jack lies evenly on the ground.

Turn ratchet 3 until the tire is raised a maxi-

mum of 1.2 in (3 cm) from the ground.

Loosen and remove the wheel (/ page 341).

Removing a wheel

Requirements

The vehicle is raised (/ page 339).

NOTE Mercedes-AMG vehicles

Observe the notes in the Supplement.

You could otherwise fail to recognize

dangers.

When changing a wheel, avoid applying any force

to the brake discs, since this could impair the

level of comfort when braking.

NOTE Damage to threading from dirt on

wheel bolts

Do not place wheel bolts in sand or on a

dirty surface.

Unscrew the uppermost wheel bolt com-

pletely.

Screw centering pin 1 into the thread

instead of the wheel bolt.

Unscrew the remaining wheel bolts com-

pletely.

Remove the wheel.

Wheels and tires

341

Mounting a new wheel

Requirements

The wheel to be changed is removed and the

centering pin is screwed in (/ page 341).

NOTE Mercedes-AMG vehicles

Observe the notes in the Supplement.

You could otherwise fail to recognize

dangers.

WARNING Risk of accident from losing a

wheel

Oiled, greased or damaged wheel bolt/wheel

nut threads or wheel hub/wheel mounting

bolt threads can cause the wheel bolts/wheel

nuts to come loose.

Never oil or grease the threads.

In the event of damage to the threads,

contact a qualied specialist workshop

immediately.

Have the damaged wheel bolts or dam-

aged hub threads replaced.

Do not continue driving.

Observe the information on the choice of tires

(/ page 334).

For tires with a specied direction of rotation, an

arrow on the side wall of the tire indicates the cor-

rect direction of rotation. Observe the direction of

rotation when mounting.

Slide the wheel to be mounted onto the cen-

tering pin and push it on.

WARNING Risk of injury from tightening

wheel bolts and nuts

If you tighten the wheel bolts or wheel nuts

when the vehicle is raised, the jack could tip.

Only tighten wheel bolts or wheel nuts

when the vehicle is on the ground.

Be sure to observe the instructions and safety

notes on "Changing a wheel" (/ page 334).

For safety reasons, only use wheel bolts which

have been approved by Mercedes-Benz and

for the wheel in question.

NOTE Damage to paintwork of the wheel

rim when screwing in the rst wheel bolt

If the wheel has too much play when screwing

in the rst wheel bolt, the wheel rim paint can

be damaged.

Press the wheel rmly against the wheel

hub when screwing in the rst wheel

bolt.

Tighten the wheel bolts evenly in a diagonal

pattern in the order indicated until they are

nger-tight.

Unscrew and remove the centering pin.

Tighten the last wheel bolt until it is nger-

tight.

Lower the vehicle (/ page 342).

Lowering the vehicle aer a wheel change

Requirements

The new wheel has been installed

(/ page 342).

342

Wheels and tires

To lower the vehicle: place the ratchet onto

the hexagon nut of the jack so that the letters

"AB" are visible and turn counter-clockwise.

Tighten the wheel bolts evenly in a diagonal

pattern in the order indicated 1 to 5 with

an initial maximum force of 59 lb- (80 Nm).

Tighten the wheel bolts evenly in a diagonal

pattern in the order indicated 1 to 5 with

the specied tightening torque of 96 lb-

(130 Nm).

WARNING Risk of accident due to incor-

rect tightening torque

The wheels could come loose if the wheel

bolts or wheel nuts are not tightened to the

prescribed torque.

Ensure that the wheel bolts or wheel

nuts are tightened to the prescribed

tightening torque.

If you are not sure, do not move the vehi-

cle. Contact a qualied specialist work-

shop and have the tightening torque

checked immediately.

Check the tire pressure of the newly installed

wheel and adjust it if necessary.

The following does not apply if the new wheel

is an emergency spare wheel.

Vehicles with a tire pressure loss warning sys-

tem: restart the tire pressure loss warning sys-

tem (/ page 321).

Vehicles with a tire pressure monitoring sys-

tem: restart the tire pressure monitoring sys-

tem (/ page 320).

Emergency spare wheel

Notes on the emergency spare wheel

WARNING Risk of accident caused by

incorrect wheel and tire dimensions

The wheel or tire sizes and the tire type of the

emergency spare wheel or spare wheel and

the wheel to be replaced may dier. The emer-

gency spare wheel or spare wheel can signi-

cantly impair driving characteristics of the

vehicle.

To prevent hazardous situations:

Drive carefully.

Never install more than one emergency

spare wheel or spare wheel that diers

in size.

Only use an emergency spare wheel or

spare wheel briey.

Do not deactivate ESP

Have the emergency spare wheel or

spare wheel of a dierent size replaced

at the nearest qualied specialist work-

Wheels and tires

343

Wheels and tires -> Changing a wheel for Your Mercedes CLA 4 Door Third Generation (2025-2026)

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