Get Wheels and tyres Guide for Mercedes C Class 4 Door Fourth Generation (2014-2021)

Wheels and tyres 409

Carry out the following checks on all wheels reg‐

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

example, prior to a long journey or driving off-

road:

Notes on noise or unusual handling charac‐

teristics

&

WARNING Risk of aquaplaning due to

insufficient tyre tread

Make sure there are no vibrations, noises or

unusual handling characteristics when the vehi‐

cle is in motion. This may indicate that the

wheels or tyres are damaged. Hidden tyre dam‐

age could also be causing the unusual handling

characteristics.

If you suspect that a tyre is defective, reduce

your speed immediately and have the tyres and

wheels checked at a qualified specialist work‐

shop.

Insufficient tyre tread will result in reduced

tyre grip.

The risk of aquaplaning is increased on wet

roads, especially when the speed of the vehi‐

cle is not adapted to suit the conditions.

R

Check the tyre pressure (/ page 410).

R

Visually inspect wheels and tyres for dam‐

age.

R

Check the valve caps.

#

Thus, you should regularly check the

R

Visual check of the tyre tread depth and the

tyre contact surface across the entire width.

tread depth and the condition of the

tread across the entire width of all

tyres.

The minimum tread depth for summer tyres

is 3 mm and for winter tyres 4 mm.

Minimum tread depth for:

R

Summer tyres: 3 mm

M+S tyres: 4 mm

Notes on regularly inspecting wheels and

tyres

Notes on snow chains

R

#

&

For safety reasons, replace the tyres

before the legally-prescribed limit for

the minimum tread depth is reached.

WARNING Risk of accident due to incor‐

rect snow chain fitting

&

WARNING Risk of injury due to damaged

tyres

If you have fitted snow chains to the front

wheels, the snow chains may drag against

the vehicle body or chassis components.

This could cause damage to the vehicle or

the tyres.

Damaged tyres can cause tyre pressure loss.

#

Check the tyres regularly for signs of

damage and replace any damaged tyres

immediately.

410 Wheels and tyres

% You can permanently limit the maximum

vehicle speed for driving with winter tyres

(/ page 196).

#

Never fit snow chains on the front

Comply with the recommended tyre

pressure and check the tyre pressure of

all tyres including the spare wheel regu‐

larly:

at least once a month

when the load changes

before embarking on a longer journey

if operating conditions change, e.g. off-

road driving

wheels.

#

Only fit snow chains on the rear wheels

in pairs.

You can deactivate ESP^®to pull away

(/ page 187). This allows the wheels to

spin, achieving an increased driving force.

%

R

Observe the following notes when using snow

chains:

R

Snow chains are only permissible for certain

Tyre pressure

Notes on tyre pressure

wheel/tyre combinations. You can obtain

information about this from a Mercedes-Benz

Service Centre.

#

Adjust the tyre pressure as necessary.

&

WARNING Risk of accident due to insuf‐

ficient or excessive tyre pressure

R

For safety reasons, only use snow chains that

Tyre pressure which is too high or too low can:

have been specifically approved for your

vehicle by Mercedes-Benz, or snow chains

with the same quality standard.

Underinflated or overinflated tyres pose the

following risks:

R

Shorten the service life of the tyres.

R

Cause increased tyre damage.

R

The tyres may burst, especially as the

load and vehicle speed increase.

R

If snow chains are fitted, the maximum per‐

missible speed is 50 km/h.

R

Adversely affect driving characteristics and

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

R

The tyres may wear excessively and/or

R

Vehicles with Active Parking Assist: do

unevenly, which may greatly impair tyre

traction.

not use Active Parking Assist when snow

chains are fitted.

&

WARNING Risk of accident from repea‐

ted tyre pressure drop

R

The driving characteristics, as well as

R

Vehicles with level control: if snow chains

If the tyre pressure drops repeatedly, the

wheel, valve or tyre may be damaged.

steering and braking, may be greatly

impaired.

are fitted, only drive at raised vehicle level .

Wheels and tyres 411

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 sys‐

tem: you can also check the tyre pressure using

the on-board computer.

Insufficient tyre pressure can cause the tyres

to burst.

#

Inspect the tyre for signs of foreign

objects.

#

Check whether the wheel or valve has a

leak.

Notes on trailer operation

#

If you are unable to rectify the damage,

contact a qualified specialist workshop.

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 411).

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

pressure.

Tyre pressure table

The tyre pressure table is on the inside of the

fuel filler flap.

If one or more tyre sizes precede a tyre pres‐

sure, the following tyre pressure information is

only valid for those tyre sizes and their respec‐

tive load condition.

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.

Only correct tyre pressures when the tyres are

cold. Conditions for cold tyres:

R

The vehicle has been parked with the tyres

out of direct sunlight for at least three hours.

R

The vehicle has travelled less than 1.6 km.

412 Wheels and tyres

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.

pressure to the recommended cold tyre pressure On-board computer:

suitable for the operating situation.

4

5

Service

Tyres

In most cases, the tyre pressure monitoring sys‐

tem will automatically update the new reference

values after you have changed the tyre pressure.

You can, however, also update the reference val‐

ues by restarting the tyre pressure monitoring

One of the following displays appears:

R

Current tyre pressure and tyre temperature

of the individual wheels:

Tyre pressure monitoring system

Function of the tyre pressure monitoring sys‐ system manually (/ page 512).

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.

System limits

The system may be impaired or may not function

in the following situations:

R

the tyre pressure has been set incorrectly

there is a sudden pressure loss caused, for

example, by a foreign object penetrating the

tyre

there is a malfunction caused by another

radio signal source

The tyre pressure and the tyre temperature

appear in the multifunction display

(/ page 412).

If there is a substantial pressure loss or if the

tyre temperature is excessive, you will be

warned in the following ways:

R

Tyre pressures will be displayed after a few

minutes of driving

R

via display messages (/ page 490)

Tyre pressure monitor active: the teach-in

Checking the tyre pressure with the tyre

pressure monitoring system

Requirements:

process of the system is not yet complete.

The tyre pressures are already being moni‐

tored.

R

via the h warning lamp in the instrument

cluster

R

The ignition is switched on.

The tyre pressure monitoring system is only an

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

#

Compare the tyre pressure with the recom‐

mended tyre pressure for the current operat‐

Wheels and tyres 413

ing condition (/ page 411). Observe the

notes on tyre temperature (/ page 410).

On-board computer:

Wheel change

Notes on selecting, fitting and replacing

tyres

4

5

Service

Tyres

% The values displayed in the multifunction dis‐

play may deviate from those of the tyre pres‐

sure gauge as they refer to sea level. At high

elevations, the tyre pressure values indica‐

ted by a pressure gauge are higher than

those shown by the on-board computer. In

this case, do not reduce the tyre pressure.

#

Swipe downwards on Touch Control on the

left-hand side of the steering wheel.

The Use current tyre pressures as new refer-

ence values? message is shown in the multi‐

function display.

NOTE Mercedes-AMG vehicles

*

#

Observe the notes in the Supplement.

You could otherwise fail to recognise

dangers.

#

To restart, press Touch Control on the left-

hand side of the steering wheel.

Restarting the tyre pressure monitoring sys‐

tem

Requirements:

The Tyre press. monitor restarted message is

shown in the multifunction display.

Current warning messages are deleted and

the yellow h warning lamp goes out.

&

WARNING Risk of accident due to incor‐

rect dimensions of wheels and tyres

If wheels and tyres of the wrong size are

used, the wheel brakes or wheel suspension

components may become damaged.

R

The recommended tyre pressure is correctly

set for the respective operating status on all

After you have been driving for a few

of the wheels (/ page 410).

minutes, the system checks whether the cur‐

rent tyre pressures are within the specified

range. The current tyre pressures are then

accepted as reference values and monitored.

#

Always replace wheels and tyres with

Restart the tyre pressure monitoring system in

the following situations:

those that fulfil the specifications of the

original part.

R

The tyre pressure has changed.

The wheels or tyres have been changed or

newly fitted.

When replacing wheels, make sure to fit the

correct:

Be sure to also pay attention to the following

related topic:

R

Designation

R

Notes on tyre pressure (/ page 410)

R

Type

414 Wheels and tyres

When replacing tyres, make sure to fit the

correct:

Only use tyres, wheels and accessories that

have been checked and recommended by

Mercedes-Benz.

NOTE Vehicle and tyre damage through

tyre types and sizes that have not been

approved

*

R

Designation

R

Manufacturer

Type

For safety reasons, only use tyres, wheels

and accessories which have been specially

approved by Mercedes-Benz for your vehicle.

NOTE Risk to driving safety from retrea‐

ded tyres

*

R

Retreaded tyres are neither tested nor rec‐

ommended by Mercedes-Benz, since previ‐

ous damage cannot always be detected on

retreaded tyres.

For this reason driving safety cannot be guar‐

anteed.

These tyres are specially adapted to the con‐

trol systems, such as ABS, ESP^®and

4MATIC, and marked as follows:

&

WARNING Risk of injury through exceed‐

ing the specified tyre load-bearing capa‐

city or the permissible speed rating

R

MO = Mercedes-Benz Original

Exceeding the load-bearing capacity of the

tyres can lead to tyre damage and could

cause the tyres to explode.

R

MOE = Mercedes-Benz Original Extended

(run-flat tyres only for certain wheels)

#

Do not use used tyres if you have no

information about their previous usage.

R

MO1 = Mercedes-Benz Original (only cer‐

tain AMG tyres)

#

Therefore, only use tyre types and sizes

approved for your vehicle model.

#

Certain characteristics, such as handling,

vehicle noise emissions, consumption, etc.

may otherwise be adversely affected. Fur‐

thermore, other tyre sizes could result in the

tyres rubbing against the body and axle com‐

ponents when loaded. This could result in

damage to the tyre or the vehicle.

Observe the tyre load-bearing capacity

rating and speed rating required for

your vehicle.

NOTE Possible damage to wheels or

tyres when driving over obstacles

*

Large wheels have a lower tyre section width.

The lower the tyre section width, the greater

is the risk of damage to wheels or tyres when

driving over obstacles.

Wheels and tyres 415

#

Avoid obstacles or drive particularly

carefully.

In addition, the tyre grip is greatly reduced at

a low outside temperature and tyre running

temperature.

NOTE Damage to summer tyres at low

ambient temperatures

*

At low ambient temperatures, tears could

form when driving with summer tyres, caus‐

ing permanent damage to the tyre.

Activate ESP^®and adapt your driving

style accordingly.

#

NOTE Possible wheel and tyre damage

when parking on kerbs or in potholes

*

#

Use M+S tyres at outside temperatures

below 10 °C.

#

Parking on kerbs or in potholes may damage

the wheels and tyres.

At temperatures below 7 °C, use M+S

tyres.

#

Only use the tyres for their intended

purpose.

#

If possible, park only on flat surfaces.

Avoid kerbs and potholes when parking.

Accessory parts that are not approved for your

vehicle by Mercedes-Benz or are not being used

correctly can impair the operating safety.

Before purchasing and using non-approved

accessories, visit a qualified specialist workshop

and enquire about:

#

Observe the following when selecting, fitting and

replacing tyres:

NOTE Damage to electronic component

parts from the use of tyre-fitting tools

*

R

Country-specific requirements for tyre

approval that define a specific tyre type for

your vehicle.

Vehicles with a tyre pressure monitoring

system: electronic component parts are

located in the wheel. Tyre-fitting tools should

not be applied in the area of the valve.

The tools could damage the electronic com‐

ponent parts.

R

Suitability

Legal stipulations

Factory recommendations

R

Furthermore, the use of certain tyre types in

R

certain regions and areas of operation can

be highly beneficial.

R

Only use tyres and wheels of the same type

&

WARNING Risk of accident with high

performance tyres

(summer tyres, winter tyres, MOExtended

tyres) and the same make.

#

Have the tyres changed at a qualified

specialist workshop only.

There is an increased risk of skidding and

aquaplaning when using sport tyres on wet

roads.

R

Only fit wheels of the same size on one axle

(left and right).

416 Wheels and tyres

R

It is only permissible to fit a different wheel

size in the event of a flat tyre in order to

drive to the specialist workshop.

Do not make any modifications to the brake

system, the wheels or the tyres.

The use of shims or brake dust shields is not

permitted and may invalidate the vehicle's

general operating permit.

If the tyre's maximum speed is below that of

the vehicle, this must be indicated by an

appropriate label in the driver's field of

vision.

Run in new tyres at moderate speeds for the

first 100 km.

Tyre pressure table (/ page 411)

Notes on the emergency spare wheel

(/ page 423)

R

Notes on interchanging wheels

Replace the tyres after six years at the latest,

regardless of wear.

&

WARNING Risk of injury through differ‐

ent wheel sizes

^RVehicles with a tyre pressure monitoring

system: all fitted wheels must be equipped

with functioning sensors for the tyre pres‐

sure monitoring system.

^RWhen replacing with tyres that do not

feature run-flat characteristics: vehicles

with MOExtended tyres are not equipped

with a TIREFIT kit at the factory. Equip the

vehicle with a TIREFIT kit after replacing with

tyres that do not feature run-flat characteris‐

tics, e.g. winter tyres.

Interchanging the front and rear wheels can

severely impair the driving characteristics.

The disk brakes or wheel suspension compo‐

nents may also be damaged.

R

At temperatures below 7 °C use winter tyres

#

Only interchange the front and rear

or all-season tyres marked M+S for all

wheels.

wheels if the wheels and tyres have the

same dimensions.

% You can permanently limit the maximum

vehicle speed for driving with winter tyres

(/ page 196).

For more information on wheels and tyres, con‐

tact a qualified specialist workshop.

Winter tyres bearing the i snowflake

symbol in addition to the M+S marking pro‐

vide the best possible grip in wintry road

conditions.

Interchanging the front and rear wheels if the

wheels or tyres have different dimensions can

render the general operating permit invalid.

The wear patterns on the front and rear wheels

differ:

R

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

tread.

Be sure to also observe the following further

related subjects:

R

Observe the maximum permissible speed for

the M+S tyres fitted.

R

Front wheels wear more on the shoulder of

the tyre

R

Notes on tyre pressure (/ page 410)

Wheels and tyres 417

R

Overview of the tyre-change tool kit

R

Rear wheels wear more in the centre of the

tyre

Centring pin

% The jack weighs approximately 2.1 kg.

The maximum load capacity of the jack can

be found on the sticker affixed to the jack.

The jack is maintenance-free. If there is a

malfunction, please contact a qualified spe‐

cialist workshop.

NOTE Mercedes-AMG vehicles

*

Do not drive with tyres that have too little tread

depth. This significantly reduces traction on wet

roads (aquaplaning).

On vehicles with the same front and rear wheel

size, you can interchange the wheels every

5,000 to 10,000 km, depending on the wear.

Ensure the direction of rotation is maintained for

the wheels.

#

Observe the notes in the Supplement.

You could otherwise fail to recognise

dangers.

The tyre-change tool kit is located under the

boot floor.

NOTE Plug-in hybrid

*

#

Observe the notes in the Supplement.

You could otherwise fail to recognise

dangers.

Observe the instructions and safety notes on

"Changing a wheel" when doing so

(/ page 418).

Apart from some country-specific variants, vehi‐

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

For more information on which tyre-changing

tools are required and approved for performing a

wheel change on your vehicle, consult a qualified

specialist workshop.

Notes on storing wheels

When storing wheels, observe the following

notes:

R

After removing wheels, store them in a cool,

dry and preferably dark place.

You require the following tools, for example, to

change a wheel:

1

2

3

Wheel wrench

Folding chock

Jack

R

Protect the tyres from contact with oil,

grease or fuel.

R

Jack

Chock

R

Wheel wrench

418 Wheels and tyres

#

Preparing the vehicle for a wheel change

Requirements:

Place chocks or other suitable items under

the front and rear of the wheel that is diago‐

nally opposite the wheel you wish to change.

Remove the hub caps if necessary

(/ page 418).

R

The required tyre-change tool kit is available.

#

If your vehicle is not equipped with the tyre-

change tool kit, consult a qualified specialist

workshop to find out about suitable tools.

Raise the vehicle (/ page 419).

R

The vehicle is not on a slope.

Removing and fitting hub caps

Requirements:

R

The vehicle is on solid, non-slippery and level

ground.

#

To remove: using both hands, carefully reach

into two wheel trim openings and remove the

wheel trim.

R

The vehicle is prepared for a wheel change

(/ page 418).

#

Apply the electric parking brake manually.

Move the front wheels to the straight-ahead

position.

Vehicles with manual transmission:

engage first or reverse gear.

Vehicles with automatic transmission:

shift into position j.

Vehicles with level control system: set the

normal vehicle level (/ page 209).

Switch off the engine.

Make sure that the engine cannot be started.

#

Vehicles with steel wheels

The wheel trim covers the wheel bolts. Before

unscrewing the wheel bolts, remove the wheel

trim.

Plastic hub cap

#

To remove: turn the centre cover of the hub

cap anti-clockwise and remove the hub cap.

To fit: make sure that the centre cover of the

hub cap is turned anti-clockwise.

Position the hub cap and turn the centre

cover clockwise until the hub cap engages

physically and audibly.

#

Wheels and tyres 419

Aluminium hub cap

R

There are no persons in the vehicle.

The vehicle has been prepared for a wheel

change (/ page 418).

R

The hub caps have been removed

(/ page 418).

Important notes on using the jack:

R

Use only a vehicle-specific jack that has

been approved by Mercedes-Benz to raise

the vehicle.

The jack is only designed for raising and

holding the vehicle for a short time while a

wheel is being changed and not for mainte‐

nance work under the vehicle.

Rules of conduct when the vehicle is raised:

R

Never place your hands or feet under the

vehicle.

#

To remove: position socket 2 from the tyre-

change tool kit on hub cap 1.

R

Never lie under the vehicle.

#

Position wheel spanner 3 on socket 2.

R

The jack must be placed on a firm, flat and

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

flat, load-bearing, non-slip underlay.

The foot of the jack must be positioned verti‐

cally under the jack support point.

R

Do not start the engine and do not release

#

Using wheel spanner 3, turn hub cap 1

the electric parking brake.

anti-clockwise and remove it.

R

Do not open or close any doors or the boot

lid.

#

To fit: follow the instructions above in

reverse order.

R

% Specified tightening torque: 25 Nm.

Raising the vehicle when changing a wheel

Requirements:

420 Wheels and tyres

#

Only position the jack at the appropri‐

ate jacking point of the vehicle. The

base of 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 vehi‐

cle raised.

Position of jack support points

#

Using the wheel wrench, loosen the wheel

bolts on the wheel you wish to change by

about one full turn. Do not unscrew the bolts

completely.

NOTE Mercedes-AMG vehicles

#

*

The jack is designed exclusively for

jacking up the vehicle at the jack sup‐

port points.

#

Observe the notes in the Supplement.

You could otherwise fail to recognise

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.

Wheels and tyres 421

Removing a wheel

Requirements:

R

The vehicle is raised (/ page 419).

NOTE Mercedes-AMG vehicles

*

#

Observe the notes in the Supplement.

You could otherwise fail to recognise

dangers.

When changing a wheel, avoid applying any force

to the brake disks, since this could impair the

level of comfort when braking.

#

Screw centring pin 1 into the thread

instead of the wheel bolt.

Unscrew the remaining wheel bolts com‐

pletely.

Remove the wheel.

NOTE Damage to threading from dirt on

wheel bolts

*

#

Position support 2 of jack 4 on jack sup‐

port point 1.

Fit the new wheel (/ page 421).

#

Do not place wheel bolts in sand or on

a dirty surface.

Turn crank 3 clockwise until jack support

2 sits completely on jack support point 1

and the base of the jack lies evenly on the

ground.

Fitting a new wheel

Requirements:

#

Unscrew the uppermost wheel bolt com‐

pletely.

R

The wheel is removed (/ page 421).

#

Turn crank 3 until the tyre is raised a maxi‐

mum of 3 cm from the ground.

Loosen and remove the wheel (/ page 421).

422 Wheels and tyres

#

Observe the information on the choice of

Tighten the wheel bolts evenly in a diagonal

pattern in the order indicated until they are

finger-tight.

Unscrew and remove the centring pin.

Tighten the last wheel bolt until it is finger-

tight.

NOTE Mercedes-AMG vehicles

*

tyres (/ page 413).

#

Observe the notes in the Supplement.

You could otherwise fail to recognise

dangers.

For tyres with a specified direction of rotation,

an arrow on the side wall of the tyre indicates

the correct direction of rotation. Observe the

direction of rotation when fitting.

#

&

WARNING Risk of accident from losing a

wheel

#

Lower the vehicle (/ page 422).

#

Slide the wheel to be mounted onto the cen‐

tring pin and push it on.

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.

As a result, you could lose a wheel while driv‐

ing.

Lowering the vehicle after a wheel change

Requirements:

&

WARNING Risk of injury from tightening

wheel bolts and nuts

R

The new wheel has been fitted

(/ page 421).

If you tighten the wheel bolts or wheel nuts

when the vehicle is raised, the jack could tip.

#

To lower the vehicle: turn the crank of the

jack anti-clockwise until the vehicle is once

again standing firmly on the ground.

#

Only tighten wheel bolts or wheel nuts

when the vehicle is on the ground.

#

Never oil or grease the threads.

In the event of damage to the threads,

contact a qualified specialist workshop

immediately.

Have the damaged wheel bolts or dam‐

aged hub threads replaced.

Do not continue driving.

#

Be sure to observe the instructions and

safety notes on "Changing a wheel"

(/ page 413).

For safety reasons, only use wheel bolts

which have been approved by Mercedes-

Benz and for the wheel in question.

#

Wheels and tyres 423

#

Emergency spare wheel

Notes on the emergency spare wheel

Ensure that the wheel bolts or wheel

nuts are tightened to the prescribed

tightening torque.

If you are not sure, do not move the

vehicle. Contact a qualified specialist

workshop and have the tightening tor‐

que checked immediately.

&

WARNING Risk of accident caused by

incorrect wheel and tyre dimensions

The wheel or tyre size and the tyre type of

the emergency spare wheel or spare wheel

and the wheel to be replaced may differ. The

emergency spare wheel or spare wheel can

significantly impair driving characteristics of

the vehicle.

#

Check the tyre pressure of the newly fitted

wheel and adjust it if necessary.

Vehicles with a tyre pressure monitoring

system: restart the tyre pressure monitoring

system (/ page 413).

#

Tighten the wheel bolts evenly in a diagonal

pattern in the order indicated 1 to 5 with

a maximum of 80 Nm.

Tighten the wheel bolts evenly in a diagonal

pattern in the order indicated 1 to 5 to

the specified tightening torque of 130 Nm.

To prevent hazardous situations:

#

Drive carefully.

Exception: the new wheel is an emergency

spare wheel.

#

Never fit more than one emergency

spare wheel or spare wheel that differs

in size.

Only use an emergency spare wheel or

spare wheel briefly.

&

WARNING Risk of accident due to incor‐

rect tightening torque

Do not deactivate ESP^®.

Have the emergency spare wheel or

spare wheel of a different size replaced

at the nearest qualified specialist work‐

The wheels could come loose if the wheel

bolts or wheel nuts are not tightened to the

prescribed torque.

#

424 Wheels and tyres

again when the emergency spare wheel has

been replaced with a new wheel.

shop. The new wheel must have the

correct dimensions.

Be sure to also observe the following further

related subjects:

% The emergency spare wheel is secured in the

emergency spare wheel bag in the boot.

R

Notes on tyre pressure (/ page 410)

Observe the following notes on fitting an emer‐

gency spare wheel:

R

Tyre pressure table (/ page 411)

Notes on fitting tyres (/ page 413)

R

Check the tyre pressure of the emergency

spare wheel fitted. Correct the pressure as

necessary.

R

The maximum permissible speed with an

emergency spare wheel fitted is 80 km/h.

R

Do not fit the emergency spare wheel with

snow chains.

R

Replace the emergency spare wheel after six

years at the latest, regardless of wear.

Vehicles with a tyre pressure monitoring

system: if an emergency spare wheel is fit‐

ted the tyre pressure monitoring system can‐

not function reliably. For a few minutes after

an emergency spare wheel is fitted, the sys‐

tem may still display the tyre pressure of the

removed wheel. Only restart the system

%

Wheels and tyres for Your Mercedes C Class 4 Door Fourth Generation (2014-2021)

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