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

Notes on noise or unusual handling characteris-

tics

Make sure there are no vibrations, noises or

unusual handling characteristics when the vehicle

is in motion. This may indicate that the wheels or

tires are damaged. Hidden tire damage could also

be causing the unusual handling characteristics.

If you suspect that a tire is defective, reduce your

speed immediately and have the tires and wheels

checked at a qualied specialist workshop.

Notes on regularly inspecting wheels and tires

WARNING Risk of injury through damaged

tires

Damaged tires can cause tire pressure loss.

Check the tires regularly for signs of

damage and replace any damaged tires

immediately.

WARNING Risk of hydroplaning due to

insucient tire tread

Insucient tire tread will result in reduced tire

grip.

In heavy rain or slush the risk of hydroplaning

is increased, in particular where speed is not

adapted to suit the conditions.

Thus, you should regularly check the

tread depth and the condition of the

tread across the entire width of all tires.

Minimum tread depth for:

Summer tires: â in (3 mm)

M+S tires: ãin (4 mm)

For safety reasons, replace the tires

before the legally-prescribed limit for the

minimum tread depth is reached.

Carry out the following checks on all wheels regu-

larly, at least once a month or as required, for

example, prior to a long journey or driving o-

road:

Check the tire pressure (/ page 315).

Visually inspect wheels and tires for damage.

Check the valve caps.

Visually inspect the tire tread depth and the

tire contact surface across the entire width.

The minimum tread depth for summer tires is

â in (3 mm) and for winter tires ã in (4 mm).

Six marks 1 show where the bar indicators

(arrow) are integrated into the tire tread. They are

visible once a tire tread depth of approximately

á in (1.6 mm) has been reached.

314

Wheels and tires

Notes on snow chains

WARNING Risk of accident due to incor-

rectly installed snow chains

If you have installed snow chains to the rear

wheels, they may drag against the vehicle

body or chassis components.

Never install snow chains on the rear

wheels.

Only install snow chains on the front

wheels in pairs.

NOTE Damage to vehicle body or suspen-

sion components caused by installed

snow chains

On 4MATIC vehicles, if you install snow chains

on the rear wheels, you can damage vehicle

body or suspension components.

On 4MATIC vehicles, only install snow

chains on the front wheels.

Observe the following notes when using snow

chains:

Snow chains are only permissible for certain

wheel/tyre combinations. You can obtain

information about this from a Mercedes-Benz

Service Centre.

For safety reasons, only use snow chains that

have been specically approved for your vehi-

cle by Mercedes-Benz, or snow chains with

the same quality standard.

If snow chains are tted, the maximum per-

missible speed is 30 mph (50 km/h).

Vehicles with Active Parking Assist: do not use

Active Parking Assist when snow chains are

tted.

You can deactivate ESP

to start o

(/ page 171). This allows the wheels to spin,

achieving an increased driving force.

Tire pressure

Notes on tire pressure

WARNING Risk of accident due to insu-

cient or excessive tire pressure

Underinated or overinated tires pose in par-

ticular the following risks:

The tires can burst.

The tires can wear excessively and/or

unevenly.

The driving characteristics as well as the

steering and braking characteristics may

be greatly impaired.

Comply with the recommended tire pres-

sures and check the tire pressure of all

tires, including the spare wheel, regu-

larly:

Monthly

When the load changes

Before embarking on a longer journey

Wheels and tires

315

If operating conditions change, e.g. o-

road driving

Adjust the tire pressure, if necessary.

Tire pressure which is too high or too low can:

Shorten the service life of the tires.

Cause increased tire damage.

Adversely aect driving characteristics and

thus driving safety, e.g. due to hydroplaning.

WARNING Risk of accident due to too low

a tire pressure

Tires with pressure that is too low can over-

heat and burst as a consequence.

In addition, they also suer from irregular

wear, which can signicantly impair the brak-

ing properties and the handling characteris-

tics.

Avoid excessively low tire pressure.

Tire pressure which is too low can cause:

Tire defects as a result of overheating

Impaired handling characteristics

Irregular wear

Increased fuel consumption

WARNING Risk of accident due to too high

a tire pressure

Tires with excessively high pressure can burst.

In addition, they also suer from irregular

wear, which can signicantly impair the brak-

ing properties and the handling characteris-

tics.

Avoid excessively high tire pressures.

Tire pressure which is too high can cause:

Increased braking distance

Impaired handling characteristics

Irregular wear

Impaired driving comfort

Susceptibility to damage

WARNING Risk of accident due to repea-

ted pressure drop in the tires

The wheels, valves or tires could be damaged.

Too low a tire pressure can lead to the tires

bursting.

Examine the tires for foreign objects.

Check whether the tire has a puncture or

the valve has a leak.

If you are unable to rectify the damage,

contact a qualied specialist workshop.

You can nd information on the recommended

tire pressures for the vehicle's factory-installed

tires on the following labels:

Tire and Loading Information placard on the

B‑pillar of your vehicle (/ page 322).

Tire pressure table on the inside of the fuel

ller ap (/ page 317).

Observe the maximum tire pressure

(/ page 329).

Use a suitable pressure gauge to check the tire

pressure. The outer appearance of a tire does not

316

Wheels and tires

permit any reliable conclusion about the tire pres-

sure.

Only correct tire pressure when the tires are cold.

Conditions for cold tires:

The vehicle has been parked with the tires out

of direct sunlight for at least three hours.

The vehicle has traveled less than 1 mile

(1.6 km).

The vehicle's tires heat up when driving. As the

temperature of the tires increases, so too does

the tire pressure.

Vehicles with a tire pressure monitoring system:

you can also see the tire pressure in the driver's

display (/ page 319).

The tire pressure recommended for increased

load/speed in the tire pressure table can aect

the ride comfort.

WARNING Risk of accident due to unsuita-

ble accessories on tire valves

If you mount unsuitable accessories onto tire

valves, the tire valves may be overloaded and

malfunction, which can cause tire pressure

loss.

Only screw standard valve caps or valve

caps specically approved by Mercedes-

Benz for your vehicle onto the tire valve.

Tire pressure table

The tire pressure table is on the inside of the fuel

ller ap.

The data shown in the images is example

data.

The tire pressure table shows the recommended

tire pressure for all tires approved for this vehicle.

The recommended tire pressure apply for cold

tires under various operating conditions, i.e. load-

ing and/or speed of the vehicle.

If one or more tire sizes precede a tire pressure,

the following tire pressure information is only valid

for those tire sizes and their respective load con-

dition.

The load conditions "partially laden" and "fully

laden" are dened in the table for dierent num-

bers of passengers and amounts of luggage. The

actual number of seats may dier from this.

Wheels and tires

317

Some tire pressure tables only show the rim diam-

eter instead of the complete tire size, e.g. R18.

The rim diameter is part of the tire size and can

be found on the tire side wall (/ page 329).

Tire and Loading Information placard

(/ page 322)

Maximum tire pressures (/ page 329)

Checking the tire pressure manually

Read the tire pressure recommended for the

current operating conditions from the tire and

loading information placard or the tire pres-

sure table. Observe the notes on tire pressure.

Remove the valve cap of the tire to be

checked.

Press the tire pressure gauge securely onto

the valve.

Read the tire pressure.

If the tire pressure is lower than the recom-

mended value, increase the tire pressure to

the recommended value.

If the tire pressure is higher than the recom-

mended value, release air. To do so, press

down the metal pin in the valve, e.g. using the

tip of a pen. Then check the tire pressure

again using the tire pressure gauge.

Screw the valve cap onto the valve.

Further related subjects:

Notes on tire pressure (/ page 315)

Tire pressure table (/ page 317)

Tire and loading information placard

(/ page 322)

Tire pressure monitoring system

▌Function of the tire pressure monitor

DANGER Risk of accident due to incorrect

tire pressure

Each tire, including the spare (if provided),

should be checked monthly when cold and

inated to the ination pressure recommen-

ded by the vehicle manufacturer on the vehi-

cle placard or tire ination pressure label. (If

your vehicle has tires of a dierent size than

the size indicated on the vehicle placard or

tire ination pressure label, you should deter-

mine the proper tire ination pressure for

those tires.)

As an added safety feature, your vehicle has

been equipped with a tire pressure monitoring

system (TPMS) that illuminates a low tire pres-

sure telltale when one or more of your tires is

signicantly under-inated. Accordingly, when

318

Wheels and tires

the low tire pressure telltale illuminates, you

should stop and check your tires as soon as

possible, and inate them to the proper pres-

sure. Driving on a signicantly under-inated

tire causes the tire to overheat and can lead

to tire failure. Under-ination also reduces fuel

eciency and tire tread life, and may aect

the vehicle’s handling and stopping ability.

Please note that the TPMS is not a substitute

for proper tire maintenance, and it is the driv-

er’s responsibility to maintain correct tire

pressure, even if under-ination has not

reached the level to trigger illumination of the

TPMS low tire pressure telltale.

Your vehicle has also been equipped with a

TPMS malfunction indicator to indicate when

the system is not operating properly. The

TPMS malfunction indicator is combined with

the low tire pressure telltale. When the system

detects a malfunction, the telltale will ash for

approximately one minute and then remain

continuously illuminated. This sequence will

continue upon subsequent vehicle start-ups as

long as the malfunction exists.

When the malfunction indicator is illuminated,

the system may not be able to detect or signal

low tire pressure as intended. TPMS malfunc-

tions may occur for a variety of reasons,

including the installation of replacement or

alternate tires or wheels on the vehicle that

prevent the TPMS from functioning properly.

The system uses a tire pressure sensor to check

the pressure and temperature of the tires tted on

the vehicle.

The tire pressure and tire temperature appear on

the driver's display.

If there is a substantial pressure loss or if the tire

temperature is excessive, you will be warned with

display messages (/ page 403) or the h

warning lamp on the driver's display

(/ page 427).

The tire pressure monitor is only an aid. It is the

driver's responsibility to set the tire pressure to

the recommended cold tire pressure suitable for

the operating situation.

In most cases, the tire pressure monitor will auto-

matically update the new reference values aer

you have changed the tire pressure. You can,

however, also update the reference values by

restarting the tire pressure monitor manually

(/ page 320).

System limits

The system may be impaired or may not function

particularly in the following situations:

incorrect reference values were taught in

sudden pressure loss caused by a foreign

object penetrating the tire, for example

there is a malfunction caused by another radio

signal source

▌Checking the tire pressure with the tire pres-

sure monitoring system

Requirements

The vehicle is switched on.

Driver's display:

Service

Press a to conrm.

Wheels and tires

319

One of the following displays appears:

Current tire pressure of each wheel:

Tire pressure displayed after driving for a

few minutes.

: current values are not yet

known to the system. The pressure/tempera-

ture values of each tire will be displayed as

soon as they are known to the system.

Tire Pressure Monitor Active: the teach-in

process of the system is not yet complete. The

tire pressures are already being monitored.

Compare the current tire pressure with the

recommended tire pressure for the current

operating mode (/ page 317). Additionally,

observe the notes on cold tires (/ page 315).

The values displayed on the driver's display

may deviate from those of the tire pressure

gauge as they refer to sea level. At high eleva-

tions, the tire pressure values indicated by a

tire pressure gauge will be higher than those

shown on the driver's display.

Bear in mind the following related topic:

Notes on tire pressure (/ page 315)

▌Restarting the tire pressure monitoring system

Requirements

The recommended tire pressure is correctly

set for the respective operating condition on

each of the four wheels (/ page 315).

Restart the tire pressure monitoring system in the

following situations:

The tire pressure has changed.

The wheels or tires have been changed or

newly installed.

Driver's display:

Service

Select Tire Pressure and press a to con-

rm.

Swipe downwards on Touch Control on the

steering wheel.

The Use current pressures as new reference

values?

message is shown on the driver's dis-

play.

Select Yes and conrm the restart with a.

The

Tire Pressure Monitor Restarted message

is shown on the driver's display.

Current warning messages are deleted and

the h yellow warning lamp goes out.

Aer driving for a few minutes, the system

checks whether the current tire pressures are

within the specied range. The current tire

pressures are then accepted as reference val-

ues and monitored.

If the tire pressure levels are not within the

specied range, the

Please Correct Tire Pres-

sure

message appears.

320

Wheels and tires

Bear in mind the following related topic:

Notes on tire pressure (/ page 315)

Tire pressure loss warning system

▌Function of the tire pressure loss warning sys-

tem

The tire pressure loss warning system warns the

driver by means of display messages when there

is a severe tire pressure loss.

System limits

The system may be impaired or may not function

particularly in the following situations:

incorrect reference values were taught in

sudden pressure loss caused by a foreign

object penetrating the tire, for example

an even pressure loss on more than one tire

occurs

The system has a restricted or delayed function

particularly in the following situations:

poor ground conditions, e.g. snow or gravel

driving with snow chains

when adopting a very sporty driving style with

high cornering speeds or sudden acceleration

driving with a high load

The tire pressure loss warning system is only an

aid. It is the driver's responsibility to set the tire

pressure to the recommended cold tire pressure

suitable for the operating situation and to check

it.

Be sure to also observe the following further rela-

ted subjects:

Notes on tire pressure (/ page 315)

Display messages about the tires

(/ page 403)

▌Restarting the tire pressure loss warning sys-

tem

Requirements

The recommended tire pressure is correctly

set for the respective operating condition at

each of the four wheels (/ page 315).

Restart the tire pressure loss warning system in

the following situations:

The tire pressure has changed.

The wheels or tires have been changed or

newly installed.

Driver's display:

Service

Select Tire Pressure and press a to con-

rm.

The

Run Flat Indicator Active message will be

shown on the driver's display.

To initiate a restart, press a on the steer-

ing wheel.

The

Are the current pressure values OK?

message will be shown on the driver's display.

Select Yes.

To conrm the restart, press a on the

steering wheel.

The

Run Flat Indicator Restarted message will

be shown on the driver's display.

Wheels and tires

321

Be sure to also observe the following further rela-

ted subjects:

Notes on tire pressure (/ page 315)

Loading the vehicle

Notes on the Tire and Loading Information placard

WARNING Risk of accident from overloa-

ded tires

Overloaded tires may overheat and burst as a

consequence. Overloaded tires can also

impair the steering and handling characteris-

tics and lead to brake failure.

Observe the load rating of the tires.

The load rating must be at least half the

permissible axle load of the vehicle.

Never overload the tires by exceeding

the maximum load.

The Tire and Loading Information placard is on the

B-pillar on the driver's side of the vehicle.

Tire and Loading Information placard

The data shown in the illustration is example

data.

The Tire and Loading Information placard shows

the following information:

Maximum number of seats

2 according to

the maximum number of people permitted to

travel in the vehicle.

322

Wheels and tires

Maximum permissible load

3 comprises the

gross weight of all vehicle occupants, load and

luggage.

Recommended tire pressures

1 for cold

tires. The recommended tire pressures are

valid for the maximum permissible load and up

to the maximum permissible vehicle speed.

Please also note:

Information on permissible weights and loads

on the vehicle identication plate

(/ page 348).

Information on tire pressure on the tire pres-

sure table (/ page 317).

Further related subjects:

Determining the maximum permissible load

(/ page 323)

Notes on tire pressure (/ page 315)

Steps for determining the correct load limit

The following steps were developed according to

the regulations of Title 49, Code of U.S. Federal

Regulations, Part 575, which are binding on all

manufacturers, and the National Trac and Motor

Vehicle Safety Act of 1966.

(1): Locate the statement “The combined

weight of occupants and cargo should never

exceed XXX kg or XXX lbs.” on your vehicle's

placard.

(2): Determine the combined weight of the

driver and passengers that will be riding in

your vehicle.

(3): Subtract the combined weight of the

driver and passengers from XXX kg or XXX lbs.

(4): The resulting gure equals the available

amount of cargo and luggage load capacity.

For example, if the "XXX" amount equals

1400 lbs. and there will be ve 150 lb pas-

sengers in your vehicle, the amount of availa-

ble cargo and luggage load capacity is

650 lbs. (1400 - 750 (5 x 150) = 650 lbs.)

(5): Determine the combined weight of lug-

gage and cargo being loaded on the vehicle.

That weight may not safely exceed the availa-

ble cargo and luggage load capacity calcula-

ted in Step 4.

(6): If your vehicle will be towing a trailer, load

from your trailer will be transferred to your

vehicle. Consult this manual to determine how

this reduces the available cargo and luggage

load capacity of your vehicle.

Not all vehicles are permitted to tow a trailer.

Towing a trailer is only permitted if a trailer-

hitch is installed. Please consult an authorized

Mercedes-Benz dealer if you have any ques-

tions about towing a tralier with your vehicle.

Even if you have calculated the total load carefully,

you should still make sure that the maximum per-

missible gross weight and the maximum gross

axle weight rating of your vehicle are not excee-

ded. Details can be found on the vehicle identi-

cation plate.

Have your loaded vehicle – including driver,

occupants and load – weighed on a vehicle

weighbridge.

The measured values may not exceed the

maximum permissible values stated on the

vehicle identication plate.

Wheels and tires

323

Further related subjects:

Calculation example for determining the maxi-

mum load (/ page 324)

Tire and loading information placard

(/ page 322)

Tire pressure table(/ page 317)

Vehicle identication plate (/ page 348)

Calculation example for determining the maximum

load

The following table shows examples of how to cal-

culate total and cargo load capacities with varying

seating congurations and dierent numbers and

weights of vehicle occupants. The following exam-

ples assume a maximum load of 1500 lbs

(680 kg).

This is for illustration purposes only.

Make sure you are using the actual load limit for

your vehicle stated on your vehicle's tire and load-

ing Information placard (/ page 322).

The greater the weight of all the vehicle occu-

pants, the smaller the maximum luggage load.

Step 1

Example 1 Example 2

Combined maximum weight of vehicle occupants

and load (data from the tire and loading informa-

tion placard)

1500 lbs (680 kg) 1500 lbs (680 kg)

324

Wheels and tires

Step 2

Example 1 Example 2

Number of persons in the vehicle (driver and pas-

sengers)

5 1

Occupant distribution Front: 2

Rear: 3

Front: 1

Weight of vehicle occupants Occupant 1: 150 lbs (68 kg)

Occupant 2: 180 lbs (82 kg)

Occupant 3: 160 lbs (73 kg)

Occupant 4: 140 lbs (63 kg)

Occupant 5: 120 lbs (54 kg)

Occupant 1: 200 lbs (91 kg)

Total weight of all vehicle occupants 750 lbs (340 kg) 200 lbs (91 kg)

Step 3

Example 1 Example 2

Permissible load (maximum gross vehicle weight

from the tire and loading information placard

minus the total weight of all occupants)

1500 lbs (680 kg) Ò 750 lbs (340 kg) = 750 lbs

(340 kg)

1500 lbs (680 kg) Ò 200 lbs (91 kg) = 1300 lbs

(589 kg)

Wheels and tires

325

Tire labeling

Overview of tire labeling

Uniform Tire Quality Grading Standards

DOT (Department of Transportation), (TIN)

Tire Identication Number

Maximum tire load (/ page 328)

Maximum tire pressure (/ page 329)

Manufacturer

Tire characteristics (/ page 329)

Tire size designation, load-bearing capacity,

speed rating and load index (/ page 329)

Tire name

The data shown in the illustration is example

data.

Tire quality grading

In accordance with the US Department of Trans-

portation's "Uniform Tire Quality Grading Stand-

ards," tire manufacturers are required to grade

their tires on the basis of the following three per-

formance factors:

Tread wear grade

Traction grade

Temperature grade

The data shown in the illustration is example

data.

The classication is not legally stipulated for

Canada, but it is generally stated.

Tread wear grade

The treadwear grade is a comparative rating

based on the wear rate of the tire when tested

under controlled conditions on a specied govern-

ment test course. For example, a tire graded 150

would wear one and one-half (1\1/2\) times as

326

Wheels and tires

well on the government course as a tire graded

100.

The relative performance of tires depends upon

the actual conditions of their use, however, and

may depart signicantly from the norm due to var-

iations in driving habits, service practices and dif-

ferences in road characteristics and climate.

Traction grade

DANGER Risk of accident due to inade-

quate traction

The traction grade assigned to this tire is

based on straight-ahead braking traction

tests.

Always adapt your driving style and drive

at a speed to suit the prevailing trac

and weather conditions.

NOTE Damage to the drivetrain from

wheelspin

Avoid wheelspin.

The traction grades, from highest to lowest, are

AA, A, B, and C. Those grades represent the tire's

ability to stop on wet pavement as measured

under controlled conditions on specied govern-

ment test surfaces of asphalt and concrete. A tire

marked C may have poor traction performance.

Temperature grade

WARNING Risk of accident from tire over-

heating and tire failure

Excessive speed, underination, or excessive

loading, either separately or in combination,

can cause excessive heat build-up and possi-

ble tire failure.

Observe the recommended tire pressure.

Regularly check the pressure of all the

tires.

Adjust the tire pressure, if necessary.

The temperature grades are A (the highest), B,

and C, representing the tire's resistance to the

generation of heat and its ability to dissipate heat

when tested under controlled conditions on a

specied indoor laboratory test wheel. Sustained

high temperature can cause the material of the

tire to degenerate and reduce tire life, and exces-

sive temperature can lead to sudden tire failure.

The grade C corresponds to a level of perform-

ance which all passenger car tires must meet

under the Federal Motor Safety Standard No.

109. Grades B and A represent higher levels of

performance on the laboratory test wheel than

the minimum required by law.

DOT, Tire Identication Number (TIN)

US tire regulations stipulate that every tire manu-

facturer or retreader must imprint a TIN in or on

the side wall of each tire produced.

Wheels and tires

327

The data shown in the illustration is example

data.

The TIN is a unique identication number to iden-

tify tires and comprises the following:

DOT (Department of Transportation): tire sym-

bol marks 1 indicating that the tire complies

with the requirements of the US Department

of Transportation.

Manufacturer identication code: manufac-

turer identication code 2 contains details of

the tire manufacturer. New tires have a code

with two symbols. Retreaded tires have a code

with four symbols. Further information on

retreaded tires (/ page 334).

Tire size: identier 3 describes the tire size.

Tire type code: tire type code 4 can be used

by the manufacturer as a code to describe

specic characteristics of the tire.

Manufacturing date: manufacturing date 5

provides information about the age of a tire.

The 1st and 2nd positions represent the cal-

endar week and the 3rd and 4th positions

state the year of manufacture (e.g. "3208"

represents the 32nd week of 2008).

Information on the maximum tire load

WARNING Risk of accident from overloa-

ded tires

Overloaded tires may overheat and burst as a

consequence. Overloaded tires can also

impair the steering and handling characteris-

tics and lead to brake failure.

Observe the load rating of the tires.

The load rating must be at least half the

permissible axle load of the vehicle.

Never overload the tires by exceeding

the maximum load.

The data shown in the illustration is example

data.

Maximum tire load

1 is the maximum permissi-

ble weight for which the tire is approved.

Do not overload the tires by exceeding the speci-

ed load limit. The maximum permissible load can

be found on the vehicle's Tire and Loading Infor-

mation placard on the B-pillar on the driver's side

(/ page 322).

328

Wheels and tires

Specications for maximum tire pressure

The data shown in the illustration is example

data.

Never exceed maximum tire pressure

1 speci-

ed for the tire. Always observe the recommen-

ded tire pressure for your vehicle when adjusting

the tire pressure (/ page 317).

Information on tire characteristics

The data shown in the illustration is example

data.

This information describes the type of tire cord

and the number of layers in side wall

1 and

under tire tread

Tire size designation, load-bearing capacity, speed

rating and load index

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.

Wheels and tires

329

Preceding letter

Nominal tire width in millimeters

Aspect ratio in %

Tire code

Rim diameter

Load bearing index

Speed rating

Load index

The data shown in the illustration is example

data.

Information about reading tire data can be

obtained from any qualied specialist workshop.

Preceding letter 1:

None: passenger car tire according to Euro-

pean manufacturing standards.

"P": passenger car tire according to US manu-

facturing standards.

"LT": light truck tire according to US manufac-

turing standards.

"T": compact emergency spare wheel with high

tire pressure which is only designed for tem-

porary use in an emergency.

Aspect ratio 3:

Ratio between tire height and tire width in percent

(tire height divided by tire width).

Tire code 4 (tire type):

"R" radial tire

"D": bias ply tire

"B": bias belted tire

"ZR": radial tire with a maximum speed above

149 mph (240 km/h) (optional)

Rim diameter 5:

The diameter of the bead seat (not the diameter

of the rim ange). The rim diameter is specied in

inches (in).

Load bearing index 6 :

Numerical code that species the maximum load-

bearing capacity of a tire (e.g. "91" corresponds

to 1356 lbs (615 kg)).

The load-bearing capacity of the tire must be at

least half the gross axle weight rating of the vehi-

cle. Do not overload the tires by exceeding the

specied load limit.

See also:

Maximum permissible load on the tire and

loading information placard (/ page 322)

Maximum tire load (/ page 328)

Load index

Speed rating 7:

Species the approved maximum speed of the

tire.

330

Wheels and tires

An electronic speed limiter prevents your

vehicle from exceeding a speed of 130 mph

(210 km/h).

Make sure that your tires have the required speed

rating. You can obtain information on the required

speed rating from an authorized Mercedes-Benz

service outlet.

Summer tires

Index Speed rating

Q up to 100 mph (160 km/h)

R up to 106 mph (170 km/h)

S up to 112 mph (180 km/h)

T up to 118 mph (190 km/h)

H up to 130 mph (210 km/h)

V up to 149 mph (240 km/h)

W up to 168 mph (270 km/h)

Index Speed rating

Y up to 186 mph (300 km/h)

ZR...Y

up to 186 mph (300 km/h)

ZR...

(..Y)

over 186 mph (300 km/h)

over 149 mph (240 km/h)

Specifying the speed rating as "ZR" in the tire

code

4 is optional for tires up to 186 mph

(300 km/h).

If your tire code

4 includes "ZR" and there is

no speed rating

7, nd out the maximum

speed from the tire manufacturer.

If the load-bearing index

6 and speed rating

7 are in brackets, the maximum speed rating

of your tire is above 186 mph (300 km/h).

Ask the tire manufacturer about the maximum

speed.

All-weather tires and winter tires

Index Speed rating

Q M+S

up to 100 mph (160 km/h)

T M+S

up to 118 mph (190 km/h)

H M+S

up to 130 mph (210 km/h)

V M+S

up to 149 mph (240 km/h)

Winter tires bear the i snowake symbol and

fulll the requirements of the Rubber Manufactur-

ers Association (RAM) and the Rubber Association

of Canada (ARC) regarding the tire traction on

snow.

Load index 8:

No specication given: standard load (LS) tire

"XL" or "Extra Load": extra load tire or rein-

forced tire

"Light Load": light load tire

"ZR" stated in the tire code.

Or "M+Si" for winter tires.

Wheels and tires

331

"C", "D", "E": load range depends on the maxi-

mum load that the tire can carry at a certain

pressure

Denition of terms for tires and loading

Tire structure and characteristics: describes the

number of layers or the number of rubber-coated

belts in the tire contact surface and the tire wall.

These are made of steel, nylon, polyester and

other materials.

Bar: metric unit for tire pressure. 14.5038

pounds per square inch (psi) and 100 kilopascal

(kPa) is the equivalent of one bar.

DOT (Department of Transportation): DOT-marked

tires fulll the requirements of the

US Department of Transportation.

Average weight of the vehicle occupants: the

number of vehicle occupants for which the vehicle

is designed, multiplied by 150 lb (68 kg).

Uniform tire quality grading standards: a uniform

standard to grade the quality of tires with regard

to tread quality, tire traction and temperature

characteristics. The quality grading assessment is

made by the manufacturer following specications

from the U.S. government. The quality grade of a

tire is imprinted on the side wall of the tire.

Recommended tire pressure: the recommended

tire pressure is the tire pressure specied for the

tires tted to the vehicle at the factory.

The tire and load information table contains the

recommended tire pressure for cold tires, the

maximum permissible load and the maximum per-

missible vehicle speed.

The tire pressure table contains the recommen-

ded tire pressure for cold tires under various oper-

ating conditions, i.e. loading and/or speed of the

vehicle.

Increased vehicle weight due to optional equip-

ment: the combined weight of all standard and

optional equipment available for the vehicle,

regardless of whether it is actually installed on the

vehicle or not.

Rim: the part of the wheel on which the tire is

mounted.

GAWR (Gross Axle Weight Rating): the GAWR is

the maximum gross axle weight rating. The actual

load on an axle must never exceed the gross axle

weight rating. The gross axle weight rating can be

found on the vehicle identication plate on the B-

pillar on the driver's side.

Speed rating: the speed rating is part of the tire

identication. It species the speed range for

which a tire is approved.

GVW (Gross Vehicle Weight): the gross vehicle

weight comprises the weight of the vehicle includ-

ing fuel, tools, spare wheel, tted accessories,

occupants, luggage and the trailer tongue weight,

if applicable. The gross vehicle weight must not

exceed the gross vehicle weight rating GVWR as

specied on the vehicle identication plate on the

B-pillar on the driver's side.

GVWR (Gross Vehicle Weight Rating): the GVWR is

the maximum permitted gross weight of the fully

laden vehicle (weight of the vehicle including all

accessories, occupants, fuel, luggage and the

trailer tongue weight if applicable). The gross vehi-

cle weight rating is specied on the vehicle identi-

cation plate on the B-pillar on the driver's side.

Maximum weight of the laden vehicle: the maxi-

mum weight is the sum of the unladen weight of

the vehicle, the weight of the accessories, the

332

Wheels and tires

maximum load and the weight of optional equip-

ment installed at the factory.

Kilopascal (kPa): metric unit for tire pressure.

6.9 kPa corresponds to 1 psi. Another unit for tire

pressure is bar. 100 kilopascal (kPa) equals 1 bar.

Load index: in addition to the load-bearing index,

the load index may also be imprinted on the side

wall of the tire. This species the load-bearing

capacity of the tire more precisely.

Unladen weight: the weight of a vehicle with

standard equipment including the maximum capa-

city of fuel, service uids and coolant. It also

includes the air conditioning system and optional

equipment if these are installed in the vehicle, but

does not include passengers or luggage.

Maximum tire load: the maximum tire load is the

maximum permissible weight in kilograms or lbs

for which a tire is approved.

Maximum permissible tire pressure: maximum

permissible tire pressure for one tire.

Maximum load on one tire: maximum load per

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 specied 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.

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 unladen weight and the

weight of the accessories.

TIN (Tire Identication Number): a unique identi-

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 tire and the road surface.

Wear indicator: narrow bars (tread wear bars) that

are distributed over the tire contact surface. If the

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

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

Wheels and tires

333

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

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

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:

The maximum permissible speed with an

emergency spare wheel installed is 50 mph

(80 km/h).

Do not install the emergency spare wheel with

snow chains.

Replace the emergency spare wheel aer six

years at the latest, regardless of wear.

Use the wheel bolts that are included with the

emergency spare wheel.

Check the tire pressure of the emergency

spare wheel when it is installed. Correct the

pressure as necessary.

The specied tire pressure is stated on the

label of the emergency spare wheel.

Vehicles with a tire pressure loss warning sys-

tem: if an emergency spare wheel is installed,

the tire pressure loss warning system cannot

function reliably. Only restart the system

again when the emergency spare wheel has

been replaced with a new wheel.

Vehicles with a tire pressure monitoring sys-

tem: if an emergency spare wheel is installed,

the tire pressure monitoring system cannot

function reliably. For a few minutes aer an

emergency spare wheel is installed, the sys-

tem may still display the tire pressure of the

removed wheel. Only restart the system again

when the emergency spare wheel has been

replaced with a new wheel.

Be sure to also observe the following further rela-

ted subjects:

Notes on tire pressure (/ page 315)

Tire and Loading Information placard

(/ page 322)

Tire pressure table (/ page 317)

Notes on installing tires (/ page 334)

Installing an emergency spare wheel

(/ page 338)

Inating the emergency spare wheel

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.

Requirements:

Comply with the manufacturer's safety notes on

the sticker of the emergency spare wheel and on

the tire ination compressor.

Remove the sticker with the label 50 mph

(80 km/h) from the tire ination compressor

housing and ax it to the instrument cluster

within the driver's eld of vision.

Remove the tire ination compressor from the

storage well under the trunk oor

(/ page 295).

344

Wheels and tires

Pull ller hose 1 and plug 3 out of the tire

ination compressor housing.

Insert plug 7 of ller hose 1 in the socket

on the tire ination compressor and then turn

it until plug

7 engages.

Unscrew the cap from the valve on the emer-

gency spare wheel.

Screw union nut 2 of ller hose 1 onto

valve.

Make sure on and o switch 4 of the tire

ination compressor is set to

Insert plug 3 in a socket in your vehicle.

12 V socket (/ page 115)

Observe the notes on sockets (/ page 115).

Press the start/stop button once to switch on

the power supply (/ page 136).

Press on and o switch 4 on the tire ination

compressor to

The tire ination compressor is switched on.

The tire is inated. The tire pressure is shown

on manometer 5.

Pump the tire to the specied tire pressure.

The specied tire pressure is stated on the

label of the emergency spare wheel.

When the specied tire pressure has been

reached, press on and o switch 4 on the

tire ination compressor to

The tire ination compressor is switched o.

Press the start/stop button to switch o the

power supply.

If the tire pressure is higher than the specied

pressure, press pressure release valve button

6 until the correct tire pressure has been

reached.

Unscrew union nut 2 of ller hose 1 from

the valve.

Screw the valve cap of the emergency spare

wheel onto the valve again.

Store ller hose 1 and plug 3 in the lower

section of the tire ination compressor hous-

ing.

Store the tire ination compressor in the vehi-

cle.

Wheels and tires

345

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

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