Get Wheels and tires -> Tire pressure Guide for Mercedes E Class 4 Door 2022

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.

Underinꢂated or overinꢂated 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.

R

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

R

Impaired handling characteristics

Irregular wear

Increased fuel consumption

R

If operating conditions change, e.g. oꢃ-

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 suꢃer from irregular

wear, which can signiꢀcantly impair the brak-

ing properties and the handling characteris-

tics.

R

Adversely aꢃect 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 suꢃer 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

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Tire pressure table on the inside of the fuel

ꢀller ꢂap (/ page 312).

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Impaired driving comfort

#

Avoid excessively low tire pressure.

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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 diꢃerent num-

bers of passengers and amounts of luggage. The

actual number of seats may diꢃer 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 ꢂap.

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 aꢃect

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 diꢃerent size than

the size indicated on the vehicle placard or

tire inꢂation pressure label, you should deter-

mine the proper tire inꢂation pressure for

those tires.)

R

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-inꢂated. Accordingly, when

the low tire pressure telltale illuminates, you

should stop and check your tires as soon as

possible, and inꢂate them to the proper pres-

sure. Driving on a signiꢀcantly under-inꢂated

tire causes the tire to overheat and can lead

to tire failure. Under-inꢂation also reduces fuel

eꢁciency and tire tread life, and may aꢃect

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-inꢂation 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)

R

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

inꢂated to the inꢂation pressure recommen-

ded by the vehicle manufacturer on the vehi-

cle placard or tire inꢂation 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 ꢂash 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:

R

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

R

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:

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The tire pressure has changed.

Be sure to also pay attention to the following rela-

ted topic:

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The wheels or tires have been changed or

newly installed.

R

Notes on tire pressure (/ page 310)

Wheels and tires -> Tire pressure for Your Mercedes E Class 4 Door 2022

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