Get Wheels and tires Guide for Mercedes E Class 4 Door 2022

Wheels and tires

309

R

Visually inspect wheels and tires for damage.

Check the valve caps.

Visual check of 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).

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 malfunctioning, reduce

your speed immediately and have the tires and

wheels checked at a qualiꢀed specialist workshop.

&

WARNING Risk of hydroplaning due to

insuꢁcient tire tread

Insuꢁcient 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:

Notes on regularly inspecting wheels and tires

R

Summer tires: â in (3 mm)

R

&

M+S tires: ãin (4 mm)

WARNING Risk of injury through damaged

tires

#

For safety reasons, replace the tires

before the legally-prescribed limit for the

minimum tread depth is reached.

Damaged tires can cause tire pressure loss.

#

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.

Check the tires regularly for signs of

damage and replace any damaged tires

immediately.

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 oꢂ-

road:

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Check the tire pressure (/ page 310).

Wheels and tires

310

Observe the following notes when using snow

chains:

Notes on snow chains

Tire pressure

Notes on tire pressure

&

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WARNING Risk of accident due to incor-

rectly installed snow chains

Snow chains are only permissible for certain

wheel/tire combinations. You can obtain infor-

mation about this from an authorized

Mercedes-Benz Center.

&

WARNING Risk of accident due to insuꢁ-

cient or excessive tire pressure

If you have installed snow chains on the front

wheels, they may drag against the vehicle

body or chassis components.

Underinꢃated or overinꢃated tires pose in par-

ticular the following risks:

R

For safety reasons, only use snow chains that

have been speciꢀcally approved for your vehi-

cle by Mercedes-Benz, or snow chains with

the same quality standard.

#

Never install snow chains on the front

R

The tires can burst.

wheels.

R

The tires can wear excessively and/or

unevenly.

#

Only install snow chains on the rear

wheels in pairs.

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If snow chains are installed, the maximum per-

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

R

The driving characteristics as well as the

steering and braking characteristics may

be greatly impaired.

R

Vehicles with Active Parking Assist: Do not

*

NOTE Damage to components of the vehi-

cle body or chassis due to mounted snow

chains

use Active Parking Assist when snow chains

are installed.

#

Comply with the recommended tire pres-

R

Vehicles with level control: If snow chains are

sures and check the tire pressure of all

tires, including the spare wheel, regu-

larly:

If you mount snow chains to the front wheels

of 4MATIC vehicles, you may damage compo-

nents of the vehicle body or chassis.

installed, only drive at raised vehicle level

(/ page 205).

R

You can deactivate ESP^®to pull away

Monthly

%

#

Only mount snow chains to the rear

wheels of 4MATIC vehicles.

R

(/ page 174). This allows the wheels to spin,

When the load changes

achieving an increased driving force.

R

Before embarking on a longer journey

Wheels and tires

311

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Impaired handling characteristics

Irregular wear

Increased fuel consumption

R

If operating conditions change, e.g. oꢂ-

road driving

&

WARNING Risk of accident due to repea-

ted pressure drop in the tires

#

The wheels, valves or tires could be damaged.

Adjust the tire pressure, if necessary.

Too low a tire pressure can lead to the tires

&

WARNING Risk of accident due to too high

a tire pressure

Tire pressure which is too high or too low can:

bursting.

R

Shorten the service life of the tires.

#

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 qualiꢀed specialist workshop.

Tires with excessively high pressure can burst.

R

Cause increased tire damage.

#

In addition, they also suꢂer from irregular

wear, which can signiꢀcantly impair the brak-

ing properties and the handling characteris-

tics.

R

Adversely aꢂect driving characteristics and

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

#

&

WARNING Risk of accident due to too low

a tire pressure

#

Avoid excessively high tire pressures.

You can ꢀnd information on tire pressure for the

vehicle's factory-installed tires on the following

labels:

Tires with pressure that is too low can over-

heat and burst as a consequence.

In addition, they also suꢂer from irregular

wear, which can signiꢀcantly impair the brak-

ing properties and the handling characteris-

tics.

Tire pressure which is too high can cause:

R

Increased braking distance

R

Tire and Loading Information placard on the

B‑pillar of your vehicle (/ page 316).

R

Impaired handling characteristics

R

Irregular wear

R

Tire pressure table on the inside of the fuel

ꢀller ꢃap (/ page 312).

R

Impaired driving comfort

#

Avoid excessively low tire pressure.

R

Susceptibility to damage

Observe the maximum tire pressure

(/ page 323).

Use a suitable pressure gauge to check the tire

pressure. The outer appearance of a tire does not

Tire pressure which is too low can cause:

R

Tire malfunctions as a result of overheating

Wheels and tires

312

permit any reliable conclusion about the tire pres-

sure.

Only correct tire pressure when the tires are cold.

Conditions for cold tires:

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 deꢀned in the table for diꢂerent num-

bers of passengers and amounts of luggage. The

actual number of seats may diꢂer from this.

malfunction, which can cause tire pressure

loss.

#

Only screw standard valve caps or valve

caps speciꢀcally approved by Mercedes-

Benz for your vehicle onto the tire valve.

R

The vehicle has been parked with the tires out

of direct sunlight for at least three hours.

R

The vehicle has traveled less than 1 mile

(1.6 km).

Tire pressure table

The tire pressure table is on the inside of the fuel

ꢀller ꢃap.

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

temperature of the tires increases, so too does

the tire pressure.

VVehicles with a tire pressure monitoring system:

You can also check the tire pressure using the on-

board computer.

%

The data shown in the images is example

data.

The tire pressure recommended for increased

load/speed in the tire pressure table can aꢂect

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

Wheels and tires

313

#

Some tire pressure tables only show the rim diam-

eter instead of the complete tire size, e.g. RR1188.

The rim diameter is part of the tire size and can

be found on the tire side wall (/ page 324).

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.

your vehicle has tires of a diꢂerent size than

the size indicated on the vehicle placard or

tire inꢃation pressure label, you should deter-

mine the proper tire inꢃation pressure for

those tires.)

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Tire and Loading Information placard

(/ page 316)

Screw the valve cap onto the valve.

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

signiꢀcantly under-inꢃated. Accordingly, when

the low tire pressure telltale illuminates, you

should stop and check your tires as soon as

possible, and inꢃate them to the proper pres-

sure. Driving on a signiꢀcantly under-inꢃated

tire causes the tire to overheat and can lead

to tire failure. Under-inꢃation also reduces fuel

eꢁciency and tire tread life, and may aꢂect

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-inꢃation has not

R

Further related subjects:

R

Maximum tire pressure (/ page 323)

Notes on tire pressure (/ page 310)

Tire pressure table (/ page 312)

Tire and Loading Information placard

(/ page 316)

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Checking the tire pressure manually

R

#

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.

Tire pressure monitoring system

#

Remove the valve cap of the tire to be

checked.

Press the tire pressure gauge securely onto

the valve.

Function of the tire pressure monitoring system

#

&

DANGER Risk of accident due to incorrect

tire pressure

#

Read the tire pressure.

Each tire, including the spare (if provided),

should be checked monthly when cold and

inꢃated to the inꢃation pressure recommen-

ded by the vehicle manufacturer on the vehi-

cle placard or tire inꢃation pressure label. (If

#

If the tire pressure is lower than the recom-

mended value, increase the tire pressure to

the recommended value.

reached the level to trigger illumination of the

TPMS low tire pressure telltale.

Wheels and tires

314

If there is a substantial pressure loss or if the tire

temperature is excessive, you will be warned with

display messages (/ page 398) or the h

warning lamp in the instrument cluster

(/ page 420).

The tire pressure monitoring system is only an aid.

It is the driver's responsibility to set the tire pres-

sure to the recommended cold tire pressure suita-

ble for the operating situation.

In most cases, the tire pressure monitoring sys-

tem will automatically update the new reference

values aꢄer you have changed the tire pressure.

You can, however, also update the reference val-

ues by restarting the tire pressure monitoring sys-

tem manually (/ page 315).

Checking the tire pressure with the tire pressure

monitoring system

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 ꢃash 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.

Requuiirrements:

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The vehicle is switched on.

On-board computer:

4

5

Service

Tires

One of the following displays appears:

R

Current tire pressure and tire temperature of

the individual wheels:

System limits

The system may be impaired or may not function

particularly in the following situations:

The system checks the tire pressure and the tire

temperature of the tires installed on the vehicle by

means of a tire pressure sensor.

The tire pressure and the tire temperature appear

in the on-board computer (/ page 314).

R

Incorrect reference values were taught in

R

Sudden pressure loss caused by a foreign

object penetrating the tire, for example

R

Tire pressure will be displayed after driving a

few minutes

R

There is a malfunction caused by another

radio signal source

Wheels and tires

315

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Tire Pressure Monitor Active: the teach-in

process of the system is not yet complete. The

tire pressures are already being monitored.

The wheels or tires have been changed or

newly installed.

Tire pressure loss warning system

Function of the tire pressure loss warning system

The tire pressure loss warning system warns the

driver by means of display messages when there

is a severe tire pressure loss.

On-board computer:

4

#

Compare the tire pressure with the recom-

mended tire pressure for the current operating

condition (/ page 312). Additionally, observe

the notes on cold tires (/ page 310).

The values displayed in the on-board com-

puter may deviate from those of the tire pres-

sure gauge as they refer to sea level. At high

elevations, the tire pressure values indicated

by a pressure gauge are higher than those

shown by the on-board computer. In this case,

do not reduce the tire pressure.

5

Service

Tires

#

Swipe downwards on Touch Control on the

leꢄ-hand side of the steering wheel.

The Use Current Pressures as New Refer-

ence Values message is shown in the Instru-

ment Display.

System limits

The system may be impaired or may not function

particularly in the following situations:

%

R

Incorrect reference values were taught in

#

To restart, press Touch Control on the leꢄ-

R

Sudden pressure loss caused by a foreign

object penetrating the tire, for example

hand side of the steering wheel.

The Tire Press. Monitor Restarted message is

shown in the Instrument Display.

R

An even pressure loss on more than one tire

occurs

Current warning messages are deleted and

the yellow h warning lamp goes out.

Aꢄer you have been driving for a few minutes,

the system checks whether the current tire

pressures are within the speciꢀed range. The

current tire pressures are then accepted as

reference values and monitored.

RRestarting the tire pressure monitoring system

Requirements:

The system has a restricted or delayed function

particularly in the following situations:

R

The recommended tire pressure is correctly

Poor ground conditions, e.g. snow or gravel

set for the respective operating status on all of

R

Driving with snow chains

the wheels (/ page 310).

R

When adopting a very sporty driving style with

high cornering speeds or sudden acceleration

Restart the tire pressure monitoring system in the

following situations:

Be sure to also pay attention to the following rela-

ted topic:

R

Driving with a high load

R

The tire pressure has changed.

R

Notes on tire pressure (/ page 310)

Wheels and tires

316

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:

On-board computer:

Loading the vehicle

Notes on Tire and Loading Information placard

4

5

Service

Tires

#

Swipe downwards on the Touch Control on the

leꢄ-hand side of the steering wheel.

&

WARNING Risk of accident from overloa-

ded tires

The Tire Pressure Control System Active

Restart message is shown in the display.

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.

#

To begin restart, press the Touch Control on

the leꢄ-hand side of the steering wheel.

The Tire Pressure Now OK? message is shown

in the display.

R

Notes on tire pressure (/ page 310)

R

Display messages about the tires

(/ page 398)

#

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.

#

Select Yes.

Restarting the tire pressure loss warning system

Requirements:

#

To conꢀrm restart, press the Touch Control on

the leꢄ-hand side of the steering wheel.

The Run Flat Indicator Restarted message is

shown in the display.

#

R

The recommended tire pressure is correctly

set for the respective operating status on all

wheels.

Aꢄer you have driven for a few minutes, the

tire pressure loss warning system monitors

the set tire pressures of all the tires.

The Tire and Loading Information placard is on the

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

Restart the tire pressure loss warning system in

the following situations:

R

The tire pressure has changed.

Be sure to also pay attention to the following rela-

ted topic:

R

The wheels or tires have been changed or

newly installed.

R

Notes on tire pressure (/ page 310)

Wheels and tires

317

R

Maximum permissible load 3 comprises the

gross weight of all vehicle occupants, load and

luggage.

Recommended tire pressure 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:

R

Information on permissible weights and loads

on the vehicle identiꢀcation plate

1

Tire and Loading Information placard

(/ page 343).

R

Information on tire pressure in the tire pres-

sure table (/ page 312).

Further related subjects:

%

The data shown in the illustration is example

data.

R

Determining the maximum permissible load

(/ page 317)

The Tire and Loading Information placard shows

the following information:

R

Notes on tire pressure (/ page 310).

R

Maximum number of seats 2 according to

the maximum number of people permitted to

travel in the vehicle.

Steps for Determining Correct Load Limit

The following steps have been developed as

required of all manufacturers under Title 49, Code

of U.S. Federal Regulations, Part 575, pursuant to

Wheels and tires

318

the "National Traꢁc and Motor Vehicle Safety Act

of 1966".

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.

Further related subjects:

R

Calculation example for determining the maxi-

mum load (/ page 318)

#

(1): Locate the statement “The combined

weight of occupants and cargo should never

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

placard.

R

Tire and Loading Information placard

(/ page 316)

R

Tire pressure table (/ page 312)

#

(2): Determine the combined weight of the

R

Vehicle identiꢀcation plate (/ page 343)

driver and passengers that will be riding in

%

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 trailer with your vehicle.

your vehicle.

#

Calculation example for determining the maximum

load

(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

1,400 lbs. and there will be ꢀve 150 lb pas-

sengers in your vehicle, the amount of availa-

ble cargo and luggage load capacity is

The following table shows examples of how to cal-

culate total and load capacities with varying seat-

ing conꢀgurations and diꢂerent numbers and

sizes of occupants. The following examples use a

maximum load of 1500 lbs (680 kg). This is for

illustrration purposes only. Make sure you are

using the actual load limit for your vehicle stated

on your vehicle's Tire and Loading Information

placard (/ page 316).

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 identiꢀ-

cation plate.

650 lbs. (1,400 - 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-

Have your loaded vehicle – including driver,

occupants and load – weighed on a vehicle

weighbridge.

The higher the weight of all the occupants, the

smaller the maximum load for luggage.

The measured values may not exceed the

maximum permissible values stated on the

vehicle identiꢀcation plate.

Wheels and tires

319

Step 1

Example 1

Example 2

Combined maximum weight of occupants and

load (data from the Tire and Loading Information

placard)

1500 lbs (680 kg)

Step 2

Example 1

5

Example 2

1

Number of people in the vehicle (driver and occu-

pants)

Distribution of the occupants

Front: 2

Rear: 3

Front: 1

Weight of 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 occupants

750 lbs (340 kg)

200 lbs (91 kg)

Wheels and tires

320

Step 3

Example 1

Example 2

Permissible load (maximum gross vehicle weight

rating from the Tire and Loading Information plac-

ard minus the gross 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

321

5

6

7

Manufacturer

Tire characteristics (/ page 324)

Tire size designation, load-bearing capacity,

speed rating and load index (/ page 324)

Tire labeling

Overview of tire labeling

8

Tire name

%

The data shown in the illustration is example

data.

Tire Quality Grading

1

2

3

Tread wear grade

Traction grade

Temperature grade

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:

%

The data shown in the illustration is example

data.

The classiꢀcation is not legally stipulated for

Canada, but it is generally stated.

Tread weaarr grade

1

2

Uniform Tire Quality Grading Standards

DOT (Department of Transportation), (TIN)

Tire Identiꢀcation Number

Maximum tire load (/ page 323)

Maximum tire pressure (/ page 323)

The treadwear grade is a comparative rating

based on the wear rate of the tire when tested

under controlled conditions on a speciꢀed govern-

ment test course. For example, a tire graded 150

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

3

4

Wheels and tires

322

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 signiꢀcantly from the norm due to var-

iations in driving habits, service practices and dif-

ferences in road characteristics and climate.

The traction grades, from highest to lowest, are

high temperature can cause the material of the

AA, A, B, and C. Those grades represent the tire's tire to degenerate and reduce tire life, and exces-

ability to stop on wet pavement as measured

under controlled conditions on speciꢀed govern-

ment test surfaces of asphalt and concrete. A tire

marked C may have poor traction performance.

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.

Temperature grade

TTraction grade

&

WARNING Risk of accident from tire over-

heating and tire failure

&

DANGER Risk of accident due to inade-

quate traction

DOT, Tire Identiꢀcation Number (TIN)

Excessive speed, underinꢃation, or excessive

loading, either separately or in combination,

can cause excessive heat build-up and possi-

ble tire failure.

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.

The traction grade assigned to this tire is

based on straight-ahead braking traction

tests.

#

Observe the recommended tire pressure.

Regularly check the pressure of all the

tires.

#

Always adapt your driving style and drive

at a speed to suit the prevailing traꢁc

and weather conditions.

#

Adjust the tire pressure, if necessary.

*

NOTE Damage to the drivetrain from

wheelspin

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

speciꢀed indoor laboratory test wheel. Sustained

#

Avoid wheelspin.

Wheels and tires

323

%

The data shown in the image is example data.

Information on the maximum tire load

Speciꢀcations for maximum tire pressure

The TIN is a unique identiꢀcation number to iden-

tify tires and comprises the following:

R

DOT (Department of Transportation): tire sym-

bol marks 1 indicating that the tire complies

with the requirements of the US Department

of Transportation.

R

Manufacturer identiꢀcation code: manufac-

turer identiꢀcation 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 328).

%

The data shown in the image is example data.

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 316).

R

Tire size: identiꢀer 3 describes the tire size.

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 312).

R

Tire type code: tire type code 4 can be used

by the manufacturer as a code to describe

speciꢀc characteristics of the tire.

R

MMaannuuffacturing 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).

Wheels and tires

324

Information on tire characteristics

Tire size designation, load-bearing capacity, speed

rating and load index

&

WARNING Risk of injury through exceed-

ing the speciꢀed tire load-bearing capa-

city or the permissible speed rating

Exceeding the speciꢀed 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

1

2

3

4

5

6

7

8

First letter(s)

approved for your vehicle model.

Nominal tire width in millimeters

Aspect ratio in %

Tire code

Rim diameter

Load-bearing index

Speed rating

#

%

The data shown in the image is example data.

Observe the tire load rating and speed

rating required for your vehicle.

This information describes the type of tire cord

and the number of layers in side wall 1 and

under tire tread 2.

Load index

%

The data shown in the illustration is example

data.

Information about reading tire data can be

obtained from any qualiꢀed specialist workshop.

Wheels and tires

325

%

First letter(s) 1:

Rim diameter 5:

An electronic speed limiter prevents your

R

vehicle from exceeding a speed of 130 mph

Without: passenger vehicle tires according to

The diameter of the bead seat (not the diameter

of the rim ꢃange). The rim diameter is speciꢀed in

inches (in).

(210 km/h).

European manufacturing standards.

R

Make sure that your tires have the required speed

rating. You can obtain information on the required

speed rating from an authorized Mercedes-Benz

Center.

"P": passenger vehicle tires according to US

manufacturing standards.

Load-bearing index 6:

R

"LT": light truck tires according to US manu-

facturing standards.

Numerical code that speciꢀes the maximum load-

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

to 1356 lbs (615 kg)).

R

Summer tires

Index

"T": compact emergency spare wheels with

high tire pressure that are only designed for

temporary use in an emergency.

The load-bearing capacity of the tire must be at

least half the gross axle weight rating of your vehi-

cle. Do not overload the tires by exceeding the

speciꢀed load limit.

Speed rating

Q

R

S

T

up to 100 mph (160 km/h)

up to 106 mph (170 km/h)

up to 112 mph (180 km/h)

up to 118 mph (190 km/h)

up to 130 mph (210 km/h)

up to 149 mph (240 km/h)

up to 168 mph (270 km/h)

up to 186 mph (300 km/h)

Aspect ratio 3::

Ratio between tire height and tire width in percent

(tire height divided by tire width).

See also:

R

Maximum permissible load on the Tire and

Loading Information placard (/ page 316)

Tire code 4 (tire type):

R

"R" radial tire

R

Maximum tire load (/ page 323)

R

"D": bias ply tire

H

V

W

Y

R

Load index

R

"B": bias belted tires

Speed rating 7::

Speciꢀes the approved maximum speed of the

tire.

R

"ZR": radial tire with a maximum speed above

149 mph (240 km/h) (optional)

Wheels and tires

326

R

AAllll--wweather tires and winter tires

"C", "D", "E": a load range that depends on the

maximum load that the tire can carry at a cer-

tain pressure

Index

Speed rating

Index

Speed rating

ZR...Y¹

ZR...(..Y)¹

ZR¹

up to 186 mph (300 km/h)

over 186 mph (300 km/h)

over 149 mph (240 km/h)

Q M+S²

T M+S²

H M+S²

V M+S²

up to 100 mph (160 km/h)

up to 118 mph (190 km/h)

up to 130 mph (210 km/h)

up to 149 mph (240 km/h)

Deꢀnition 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.

R

Specifying the speed rating as the "ZR" index

in 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 what the maxi-

mum speed is from the tire manufacturer.

If 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). To

ꢀnd out the maximum speed, ask the tire man-

ufacturer.

Winter tires bear the i snowꢃake symbol and

fulꢀll the requirements of the Rubber Manufactur-

ers Association (RMA) and the Rubber Association

of Canada (RAC) regarding the tire traction on

snow.

DOT (Department of Transportation): DOT-marked

tires fulꢀll the requirements of the

Load index 8::

US Department of Transportation.

R

No speciꢀcation given: standard load (SL) tire

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 Graddiinngg Standards: a uniform

standard to grade the quality of tires with regard

R

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

forced tire

R

"Light Load": light load tire

1

2

"ZR" stated in the tire code.

Or "M+Si" for winter tires.

Wheels and tires

327

to tread quality, tire traction and temperature

characteristics. The quality grading assessment is

GAWR (Gross Axle Weight Rating): the GAWR is

the maximum permissible axle load. The actual

Maximum weight of the laden vehicle: the maxi-

mum weight is the sum of the curb weight of the

vehicle, the weight of the accessories, the maxi-

mum load and the weight of optional equipment

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.

made by the manufacturer following speciꢀcations load on an axle must never exceed the gross axle

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

tire is imprinted on the side wall of the tire.

RRecommended tire pressure: the recommended

tire pressure is the tire pressure speciꢀed for the

tires mounted to the vehicle at the factory.

weight rating. The gross axle weight rating can be

found on the vehicle identiꢀcation plate on the

B‑pillar on the driver's side.

Speed rating: the speed rating is part of the tire

identiꢀcation. It speciꢀes the speed range for

which a tire is approved.

The tire and information table contains the recom-

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

the load index may also be imprinted on the side

mended tire pressures for cold tires, the maxi-

GVW (Gross Vehicle Weight): the gross vehicle

mum permissible load and the maximum permissi- weight comprises the weight of the vehicle includ- wall of the tire. This speciꢀes the load-bearing

ble vehicle speed.

ing fuel, tools, the spare wheel, accessories instal- capacity of the tire more precisely.

led, occupants, luggage and the trailer drawbar

noseweight, if applicable. The gross vehicle weight

must not exceed the gross vehicle weight rating

GVWR as speciꢀed on the vehicle identiꢀcation

plate on the B‑pillar on the driver's side.

The tire pressure table contains the recommen-

ded tire pressures for cold tires under various

operating conditions, i.e. loading and/or speed of

the vehicle.

IInnccrreased vehicle weight due to optional equip-

mmeenntt:: 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.

Curb weight: the weight of a vehicle with standard

equipment including the maximum capacity of

fuel, oil and coolant. It also includes the air condi-

tioning system and optional equipment if these

are installed on the vehicle, but does not include

GVWR (Gross Vehicle Weight Rating): the GVWR is passengers or luggage.

the maximum permitted gross weight of the fully

laden vehicle (weight of the vehicle including all

accessories, occupants, fuel, luggage and the

trailer drawbar noseweight if applicable). The

gross vehicle weight rating is speciꢀed on the

vehicle identiꢀcation plate on the B‑pillar on the

driver's side.

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.

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

installed.

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-ꢃat 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 ꢃat 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 (leꢄ and right).

Notes on rotating the wheels

Replace the tires aꢄer six years at the latest,

regardless of wear.

It is only permissible to install a diꢂerent

wheel size in the event of a ꢃat 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-ꢃat characteristics: vehicles with

MOExtended tires are not equipped with a

TIREFIT kit at the factory. Equip the vehicle

with a TIREFIT kit aꢄer replacing with tires that

do not feature run-ꢃat 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 ꢃoor.

*

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

Aꢄer 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

ꢃoor.

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.

Shiꢄ 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-ꢄ (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, ꢃat and

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

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 aꢄer 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-ꢄ (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-ꢄ

(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 aꢄer 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 brieꢃy.

%

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

339

%

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.

VVehicles 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 aꢄer 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:

R

Notes on tire pressure (/ page 310)

R

Tire and Loading Information placard

(/ page 316)

R

Tire pressure table (/ page 312)

R

Notes on installing tires (/ page 328)

R

Installing an emergency spare wheel

(/ page 332)

Wheels and tires for Your Mercedes E Class 4 Door 2022

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