Get Wheels and tyres -> Tyre pressure Guide for Mercedes C Class 4 Door 2023

Wheels and tyres

654

Vehicles with Active Parking Assist: do not use

Active Parking Assist when snow chains are

ﬁtted.

Vehicles with level control: if snow chains are

ﬁtted, only drive at raised vehicle level .

The tyres can wear excessively and/or

unevenly.

The driving characteristics as well as the

steering and braking characteristics may

be greatly impaired.

NOTE Damage to components of the vehi-

cle body or chassis due to ﬁtted snow

chains

If you ﬁt snow chains to the front wheels of

4MATIC vehicles, you may damage compo-

nents of the vehicle body or chassis.

You can permanently limit the maximum

speed for driving with winter tyres

(/ page 349).

You can deactivate ESP^®to pull away

(/ page 340). This allows the wheels to spin,

achieving an increased driving force.

Comply with the recommended tyre

pressure and check the tyre pressure of

all tyres, including the spare wheel, regu-

larly:

Only ﬁt snow chains to the rear wheels

of 4MATIC vehicles.

Observe the following notes when using snow

chains:

monthly

when the load changes

before embarking on a longer journey

if operating conditions change, e.g. oﬀ-

road driving

Snow chains are only permissible for certain

wheel/tyre combinations. You can obtain

information about this from a Mercedes-Benz

Service Centre.

Tyre pressure

Notes on tyre pressure

For safety reasons, only use snow chains that

Adjust the tyre pressure, if necessary.

WARNING Risk of accident due to insuﬃ-

cient or excessive tyre pressure

have been speciﬁcally approved for your vehi-

cle by Mercedes-Benz, or snow chains with

the same quality standard.

Tyre pressure which is too high or too low can:

Underinﬂated or overinﬂated tyres pose in par-

ticular the following risks:

Shorten the service life of the tyres.

Comply with the installation instructions of the

snow chain manufacturer.

If snow chains are ﬁtted, the maximum per-

missible speed is 50 km/h.

Cause increased tyre damage.

The tyres can burst.

Adversely aﬀect driving characteristics and

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

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Wheels and tyres

655

The vehicle has travelled less than 1.6 km.

WARNING Risk of accident due to repea-

ted pressure drop in the tyres

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

temperature of the tyres increases, so too does

the tyre pressure.

Vehicles with a tyre pressure monitoring system:

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

display (/ page 656).

The wheels, valves or tyres could be damaged.

Too low a tyre pressure can lead to the tyres

bursting.

Examine the tyres for foreign objects.

Check whether the tyre has a puncture

or the valve has a leak.

If you are unable to rectify the damage,

contact a qualiﬁed specialist workshop.

Notes on trailer operation

Always inﬂate the rear axle tyres to the recom-

mended tyre pressures on the tyre pressure table

for increased load.

Information on the recommended tyre pressure

for the vehicle's factory-ﬁtted tyres can be found

on the tyre pressure table on the inside of the fuel

ﬁller ﬂap (/ page 655).

Tyre pressure table

The tyre pressure table is on the inside of the fuel

ﬁller ﬂap.

The tyre pressure table shows the recommended

tyre pressure for all tyres approved for this vehi-

cle. The recommended tyre pressures apply for

cold tyres under various operating conditions, i.e.

loading and/or speed of the vehicle.

Use a suitable pressure gauge to check the tyre

pressure. The outer appearance of a tyre does not

permit any reliable conclusion about the tyre pres-

sure.

If one or more tyre sizes precede a tyre pressure,

the following tyre pressure information is only

valid for those tyre sizes and their respective load

condition.

Only correct tyre pressures when the tyres are

cold. Conditions for cold tyres:

The vehicle has been parked with the tyres out

of direct sunlight for at least three hours.

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Wheels and tyres

656

If the preceding tyre sizes are complemented by

the + symbol, the tyre pressure information

following shows alternative tyre pressures. Fuel

consumption may then increase slightly.

The tyre pressure monitoring system is only an

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

pressure to the recommended cold tyre pressure

suitable for the operating situation.

Driver's display:

Service

Press a to conﬁrm.

One of the following displays appears:

In most cases, the tyre pressure monitoring sys-

tem will automatically update the new reference

values aꢀer you have changed the tyre pressure.

You can, however, also update the reference val-

ues by restarting the tyre pressure monitoring

system manually (/ page 657).

The load conditions "partially laden" and "fully

laden" are deﬁned in the table for diﬀerent num-

bers of passengers and amounts of luggage. The

actual number of seats may diﬀer from this.

Current tyre pressure of each wheel:

Tyre pressure monitoring system

System limits

The system may be impaired or may not function

particularly in the following situations:

▌Function of the tyre pressure monitoring sys-

tem

The system checks the tyre pressure and the tyre

temperature of the tyres ﬁtted to the vehicle by

means of a tyre pressure sensor.

The tyre pressure and the tyre temperature

appear in the driver's display.

incorrect reference values were taught in

sudden pressure loss caused by a foreign

object penetrating the tyre, for example

there is a malfunction caused by another radio

signal source

Tyre pressures will be displayed after a few

minutes of driving: current values are not yet

known to the system. The pressure/tempera-

ture values of each tyre are displayed as soon

as they are known to the system.

If there is a substantial pressure loss or if the tyre

temperature is excessive, you will be warned with

display messages (/ page 893) or the h

warning lamp in the driver's display

▌Checking the tyre pressure with the tyre pres-

sure monitoring system

Tyre pressure monitor active: the teach-in

(/ page 924).

Requirements

process of the system is not yet complete. The

tyre pressures are already being monitored.

The vehicle is switched on.

F206 0105 02

Wheels and tyres

657

Compare the current tyre pressure with the

recommended tyre pressure for the current

operating condition (/ page 655). Addition-

ally, observe the notes on cold tyres

(/ page 654).

Driver's display:

Wheel change

Notes on selecting, ﬁtting and replacing tyres

Service

Select Tyre pressure and conﬁrm with a.

Swipe downwards on Touch Control on the

steering wheel.

WARNING Risk of accident due to incor-

rect wheel and tyre dimensions

The values displayed in the driver's display

may deviate from those of the tyre pressure

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

tions, the tyre pressure values indicated by a

tyre pressure gauge are higher than those

shown in the driver's display.

The Use current tyre pressures as new refer-

ence values? message is shown in the driver's

display.

If wheels and tyres of the wrong size are ﬁtted,

the service brakes or components in the brake

system and in the wheel suspension may be

damaged.

Select Yes and conﬁrm the restart with a.

The Tyre pressure monitor restarted message

is shown in the driver's display.

Always replace wheels and tyres with

those that fulﬁl the speciﬁcations of the

▌Restarting the tyre pressure monitoring system

Current warning messages are deleted and

the yellow h warning lamp goes out.

original part.

Requirements

For wheels, pay attention to the following:

The recommended tyre pressure is correctly

Aꢀer you have been driving for a few minutes,

the system checks whether the current tyre

pressures are within the speciﬁed range. The

current tyre pressures are then accepted as

reference values and monitored.

If the tyre pressure levels are not within the

speciﬁed range, the Please correct tyre pres-

sure message appears.

Designation

set for the respective operating status on each

Type

of the four wheels (/ page 654).

For tyres, pay attention to the following:

Restart the tyre pressure monitoring system in the

following situations:

Designation

Manufacturer

The tyre pressure has changed.

The wheels or tyres have been changed or

newly ﬁtted.

Type

F206 0105 02

Wheels and tyres -> Tyre pressure for Your Mercedes C Class 4 Door 2023

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