Get Wheels and tires -> Changing a wheel Guide for Mercedes E Class 4 Door 2022

Wheels and tires

328

Maximum load on one tire: maximum load on one

tire. This is calculated by dividing the maximum

axle load of one axle by two.

PSI (pounds per square inch): standard unit of

measurement for tire pressure.

Aspect ratio: ratio between tire height and tire

width in percent.

Tire pressure: pressure inside the tire applying an

outward force to every square inch of the tire. The

tire pressure is speciꢀed in pounds per square

inch (psi), in kilopascals (kPa) or in bar. The tire

pressure should only be corrected when the tires

are cold.

Cold tire pressure: the tires are cold when the

vehicle has been parked for at least 3 hours with-

out direct sunlight on the tires or the vehicle has

been driven for less than 1 mile (1.6 km).

Tire contact surface: the part of the tire that

comes into contact with the road.

Tire bead: the purpose of the tire bead is to

ensure that the tire sits securely on the wheel rim.

There are several wire cores in the tire bead to

prevent the tire from changing length on the

wheel rim.

Side wall: the part of the tire between the tread

and the tire bead.

tire tread is level with the bars, the wear limit of

1/16 in (1.6 mm) has been reached.

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.

Weight of optional equipment: the combined

weight of the optional equipment weighing more

than the replaced standard parts and more than

5 lbs (2.3 kg). This optional equipment, such as

high-performance brakes, level control system, a

roof luggage rack or high-performance batteries,

is not included in the curb weight and the weight

of the accessories.

TIN (Tire Identiꢀcation Number): a unique identiꢀ-

cation number which can be used by a tire manu-

facturer to identify tires, for example, in a product

recall, and thus identify the purchasers. The TIN is

made up of the manufacturer's identity code, tire

size, tire type code and the manufacturing date.

Load-bearing index: the load-bearing index is a

code that contains the maximum load-bearing

capacity of a tire.

Traction: traction is the grip resulting from friction

between the tires and the road surface.

Wear indicator: narrow bars (tread wear bars) that

are distributed over the tire contact surface. If the

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

Wheels and tires

329

#

brake system and in the wheel suspension

may be damaged.

Therefore, only use tire types and sizes

approved for your vehicle model.

Observe the tire load rating and speed

rating required for your vehicle.

ted. 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.

Only use tires, wheels and accessories that

have been checked and recommended by

Mercedes-Benz.

#

Always replace wheels and tires with

ones that fulꢀll the speciꢀcations of the

original part.

For wheels, pay attention to the following:

*

NOTE Vehicle and tire damage through

tire types and sizes that have not been

approved

R

Designation

R

Type

*

NOTE Risk to driving safety from retrea-

ded tires

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:

For tires, pay attention to the following:

R

Designation

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.

R

Manufacturer

R

Type

R

MO = Mercedes-Benz Original

MOE = Mercedes-Benz Original Extended

(run-ꢁat tire only for certain wheels)

MO1 = Mercedes-Benz Original (only cer-

tain AMG tires)

&

WARNING Risk of injury through exceed-

ing the speciꢀed tire load-bearing capa-

city or the permissible speed rating

R

#

Do not use used tires if you have no

information about their previous usage.

R

Exceeding the speciꢀed tire load rating or the

permissible speed rating may lead to tire dam-

age and to the tires bursting.

Otherwise, certain properties, such as han-

dling characteristics, vehicle noise emissions,

consumption, etc. could be adversely aꢂec-

Wheels and tires

330

Before purchasing and using non-approved acces-

sories, visit a qualiꢀed specialist workshop and

inquire about:

*

NOTE Possible wheel and tire damage

when driving over obstacles

NOTE Damage to electronic component

parts from the use of tire-mounting tools

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.

Vehicles with a tire pressure monitoring sys-

tem: Electronic component parts are located

in the wheel. Tire-mounting tools should not

be used in the area of the valve.

R

Suitability

R

Legal stipulations

R

Factory recommendations

#

Avoid obstacles or drive especially care-

fully.

This could otherwise damage the electronic

&

WARNING Risk of accident with high per-

formance tires

component parts.

#

Reduce your speed when driving over

Have the tires changed at a qualiꢀed

specialist workshop only.

The special tire tread in combination with the

optimized tire compound means that the risk

of skidding and hydroplaning on wet roads is

increased.

In addition, the tire grip is greatly reduced at a

low outside temperature and tire running tem-

perature.

curbs, speed bumps, manhole covers

and potholes.

#

Avoid particularly high curbs.

*

NOTE Damage to summer tires at low

ambient temperatures

*

NOTE Possible wheel and tire damage

when parking on curbs or in potholes

At low ambient temperatures, tears could form

when driving with summer tires, causing per-

manent damage to the tires.

Parking on curbs or in potholes may damage

the wheels and tires.

Switch on the ESP^®and adapt your driv-

#

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

i M+S tires.

ing style accordingly.

#

If possible, park only on ꢁat surfaces.

Avoid curbs and potholes when parking.

#

Use i M+S tires at outside tempera-

tures of less than 50 °F (10 °C).

Only use the tires for their intended pur-

pose.

#

Accessory parts which are not approved for your

vehicle by Mercedes-Benz, or which are not used

correctly, can impair the operating safety.

#

Wheels and tires

331

R

Observe the following when selecting, installing

and replacing tires:

For M+S tires, only use tires with the same

tread.

Observe the maximum permissible speed for

the M+S tires installed.

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).

Tire and Loading Information placard

(/ page 316)

R

Furthermore, the use of certain tire types in

Tire size designation, load-bearing capacity,

speed rating and load index (/ page 324)

Tire pressure table (/ page 312)

Notes on the emergency spare wheel

(/ page 338)

certain regions and areas of operation can be

highly beneꢀcial.

R

Only use tires and wheels of the same type

(summer tires, winter tires, MOExtended tires)

and the same make.

R

Only install wheels of the same size on one

axle (leꢃ and right).

Notes on rotating the wheels

Replace the tires aꢃer six years at the latest,

regardless of wear.

It is only permissible to install a diꢂerent

wheel size in the event of a ꢁat tire in order to

drive to the specialist workshop.

&

WARNING Risk of injury through diꢂerent

wheel sizes

When replacing with tires that do not feature

run-ꢁat characteristics: vehicles with

MOExtended tires are not equipped with a

TIREFIT kit at the factory. Equip the vehicle

with a TIREFIT kit aꢃer replacing with tires that

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

winter tires.

Rotating the front and rear wheels can

severely impair the driving characteristics.

R

Vehicles with a tire pressure monitoring sys-

ttem: All installed wheels must be equipped

with functioning sensors for the tire pressure

monitoring system.

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.

R

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

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

For more information on wheels and tires, contact

a qualiꢀed specialist workshop.

Be sure to also observe the following further rela-

ted subjects:

for all wheels.

Winter tires provide the best possible grip in

wintry road conditions.

The wear patterns on the front and rear wheels

diꢂer:

R

Notes on tire pressure (/ page 310)

R

Front wheels wear more on the tire shoulder

Wheels and tires

332

R

%

Rear wheels wear more in the center of the

tire

Overview of the tire-change tool kit

Depending on the model, the tire change tool

kit may be located at other positions under

the trunk ꢁoor.

*

NOTE Mercedes-AMG vehicles

Do not drive with tires that have too little tread

depth. This signiꢀcantly reduces traction on wet

roads (hydroplaning).

#

Observe the notes in the Supplement.

You could otherwise fail to recognize

dangers.

On vehicles that have the same size front and rear

wheels, rotate the wheels 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.

Apart from some country-speciꢀc variants, vehi-

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

For more information on which tire-changing tools

are required and approved for performing a wheel

change on your vehicle, consult a qualiꢀed spe-

cialist workshop.

You require the following tools, for example, to

change a wheel:

1

2

3

4

5

Jack

Observe the instructions and safety notes on

"Changing a wheel" when doing so (/ page 332).

Lug wrench

Alignment bolt

Folding chock

Ratchet for jack

R

Jack

R

Chock

Notes on storing wheels

R

Lug wrench

When storing wheels, observe the following notes:

R

Alignment bolt

Aꢃer removing wheels, store them in a cool,

dry and preferably dark place.

Protect the tires from contact with oil, grease

or fuel.

Preparing the vehicle for a wheel change

Requirements:

The tire-change tool kit is located under the trunk

ꢁoor.

R

The vehicle is not on a slope.

Wheels and tires

333

R

The vehicle is on solid, non-slippery and level

ground.

The required tire-change tool kit is available.

Removing and installing the wheel trim/hub caps

Requirements:

Aluminum hub cap

R

The vehicle is prepared for a wheel change

(/ page 332).

%

If your vehicle is not equipped with the tire-

change tool kit, consult a qualiꢀed specialist

workshop to ꢀnd out about suitable tools.

Apply the electric parking brake manually.

Move the front wheels to the straight-ahead

position.

Shiꢃ the transmission to position j.

Vehicles with level control system: Set the

normal vehicle level (/ page 205).

Switch oꢂ the vehicle.

Make sure that the vehicle cannot be started.

Place chocks or other suitable items under the

front and rear of the wheel that is diagonally

opposite the wheel you wish to change.

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.

#

To remove: position socket 2 from the tire-

change tool kit on hub cap 1.

#

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.

#

%

Speciꢀed tightening torque: 18 lb-ꢃ (25 Nm).

#

If necessary, remove the wheel trim/hub caps

(/ page 333).

Raise the vehicle (/ page 334).

Wheels and tires

334

Raising the vehicle when changing a wheel

Requirements:

R

There are no persons in the vehicle.

R

The vehicle has been prepared for a wheel

change (/ page 332).

R

The wheel trims and hub caps have been

removed (/ page 333).

Important notes on using the jack:

R

Use only a vehicle-speciꢀc jack that has been

Rules of conduct when the vehicle is raised:

#

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.

approved by Mercedes-Benz to raise the vehi-

R

Never place your hands or feet under the vehi-

cle.

R

The jack is only designed for raising and hold-

R

Never lie under the vehicle.

ing the vehicle for a short time while a wheel

is being changed and not for maintenance

work under the vehicle.

R

Do not start the vehicle and do not release the

electric parking brake.

R

Do not open or close any doors or the trunk

lid.

R

The jack must be placed on a ꢀrm, ꢁat and

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

load-bearing, non-slip underlay.

R

The foot of the jack must be positioned verti-

cally under the jack support point.

Wheels and tires

335

the jack must be positioned vertically

under the jacking point of the vehicle.

*

NOTE Vehicle damage from the jack

If you do not position the jack correctly at the

appropriate jack support point of the vehicle,

the jack could tip over with the vehicle raised.

#

The jack is designed exclusively for jack-

ing up the vehicle at the jack support

points.

Position of jack support points

#

*

NOTE Mercedes-AMG vehicles

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.

#

Observe the notes in the Supplement.

You could otherwise fail to recognize

dangers.

#

Position support 2 of jack 4 on jack sup-

port point 1.

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 336).

&

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

Wheels and tires

336

Removing a wheel

Requirements:

&

WARNING Risk of accident from losing a

wheel

R

The vehicle is raised (/ page 334).

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.

*

NOTE Mercedes-AMG vehicles

#

Observe the notes in the Supplement.

You could otherwise fail to recognize

dangers.

#

Never oil or grease the threads.

#

In the event of damage to the threads,

contact a qualiꢀed specialist workshop

When changing a wheel, avoid applying any force

to the brake discs, as this could impair the level of

comfort when braking.

#

Screw alignment bolt 1 into the thread

immediately.

instead of the wheel bolt.

#

Have the damaged wheel bolts or dam-

aged hub threads replaced.

Do not continue driving.

Unscrew the remaining wheel bolts com-

pletely.

Remove the wheel.

#

*

NOTE Damage to threading from dirt on

wheel bolts

#

Observe the information on the choice of tires

(/ page 328).

#

Do not place wheel bolts in sand or on a

dirty surface.

Installing a new wheel

For tires with a speciꢀed 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 installing.

#

*

NOTE Mercedes-AMG vehicles

Unscrew the uppermost wheel bolt com-

pletely.

#

Observe the notes in the Supplement.

You could otherwise fail to recognize

dangers.

#

Slide the wheel to be mounted onto the align-

ment bolt and push it on.

Wheels and tires

337

#

Tighten the wheel bolts evenly in a diagonal

pattern in the order indicated until they are

ꢀnger-tight.

Unscrew and remove the alignment bolt.

Tighten the last wheel bolt until it is ꢀnger-

tight.

&

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.

#

Lower the vehicle (/ page 337).

#

Be sure to observe the instructions and safety

notes on "Changing a wheel" (/ page 328).

Lowering the vehicle aꢃer a wheel change

Requirements:

#

Tighten the wheel bolts evenly in a diagonal

pattern in the order indicated 1 to 5 with

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

Tighten the wheel bolts evenly in a diagonal

pattern in the order indicated 1 to 5 with

the speciꢀed tightening torque of 111 lb-ꢃ

(150 Nm).

For safety reasons, only use wheel bolts which

have been approved by Mercedes-Benz and

for the wheel in question.

R

The new wheel has been installed

(/ page 336).

#

*

NOTE Damage to paintwork of the wheel

rim when screwing in the ꢀrst wheel bolt

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.

If the wheel has too much play when screwing

in the ꢀrst wheel bolt, the wheel rim paint can

be damaged.

&

WARNING Risk of accident due to incor-

rect tightening torque

#

Press the wheel ꢀrmly against the wheel

hub when screwing in the ꢀrst wheel

bolt.

The wheels could come loose if the wheel

bolts or wheel nuts are not tightened to the

prescribed torque.

Wheels and tires

338

#

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 qualiꢀed specialist work-

shop and have the tightening torque

checked immediately.

Emergency spare wheel

Notes on the emergency spare wheel

shop. The new wheel must have the cor-

rect dimensions.

%

The emergency spare wheel is secured in the

emergency spare wheel bag in the trunk.

Observe the following notes on installing an emer-

gency 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 diꢂer. The emer-

gency spare wheel or spare wheel can signiꢀ-

cantly impair driving characteristics of the

vehicle.

R

The maximum permissible speed with an

#

Check the tire pressure of the newly installed

wheel and adjust it if necessary.

emergency spare wheel installed is 50 mph

(80 km/h).

R

%

The following does not apply if the new wheel

is an emergency spare wheel.

Do not equip the emergency spare wheel with

snow chains.

Replace the emergency spare wheel aꢃer six

years at the latest, regardless of wear.

Check the tire pressure of the emergency

spare wheel installed. Correct the pressure as

necessary.

To prevent hazardous situations:

#

R

Vehicles with tire pressure loss warning sys-

ttem: Restart the tire pressure loss warning

system (/ page 316).

#

Drive carefully.

#

Never install more than one emergency

R

spare wheel or spare wheel that diꢂers

#

Vehicles with a tire pressure monitoring sys-

tem: Restart the tire pressure monitoring sys-

tem (/ page 315).

in size.

#

Only use an emergency spare wheel or

spare wheel brieꢁy.

%

The speciꢀed tire pressure is stated on the

label of the emergency spare wheel.

Do not deactivate ESP^®.

#

Have the emergency spare wheel or

spare wheel of a diꢂerent size replaced

at the nearest qualiꢀed specialist work-

Wheels and tires -> Changing a wheel for Your Mercedes E Class 4 Door 2022

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