Get Wheels and tyres -> Winter operation Guide for Mercedes CLA 4 Door First Generation (2013-2018)

Do not drive with tyres that have too little

tread depth. This significantly reduces trac-

tion on wet roads (aquaplaning).

Replace the tyres after six years at the latest,

regardless of wear.

Observe the notes on the emergency spare

wheel (Y page 323).

MOExtended tyres (tyres with run-flat

characteristics)

With MOExtended tyres (tyres with run-flat char-

acteristics), you can continue to drive your vehi-

cle even if there is a total loss of pressure in one

or more tyres.

MOExtended tyres may be used only in conjunc-

tion with an activated tyre pressure loss warning

system or with an activated tyre pressure mon-

itor and only on wheels specifically tested by

Mercedes-Benz.

Notes on driving with MOExtended tyres with a

flat tyre (Y page 295).

Vehicles with MOExtended tyres are not equip-

ped with a TIREFIT kit at the factory. It is there-

fore recommended that you additionally equip

your vehicle with a TIREFIT kit if you fit tyres that

do not feature run-flat characteristics, e.g. win-

ter tyres. A TIREFIT kit can be obtained from a

qualified specialist workshop.

Winter operation

General notes

Have your vehicle winterproofed at a qualified

specialist workshop at the onset of winter.

Observe the notes in the "Changing a wheel"

section (Y page 318).

Driving with summer tyres

At temperatures below +7 †, summer tyres lose

elasticity and therefore traction and braking

power. Change the tyres on your vehicle to

M+S tyres. Using summer tyres at very cold

temperatures could cause tears to form,

thereby damaging the tyres permanently.

Mercedes-Benz cannot accept responsibility for

this type of damage.

WARNING

Damaged tyres can cause tyre inflation pres-

sure loss. As a result, you could lose control of

your vehicle. There is a risk of accident.

Check the tyres regularly for signs of damage

and replace any damaged tyres immediately.

M+S tyres

WARNING

M+S tyres with a tyre tread depth of less than

4 mm are not suitable for use in winter as they

do not provide sufficient traction. There is a

risk of accident.

M+S tyres with a tread depth of less than

4 mm must be replaced.

At temperatures below +7 †, use winter tyres or

all-season tyres. Both types of tyre are identified

by the M+S marking.

Only winter tyres bearing the i snowflake

symbol in addition to the M+S marking provide

the best possible grip in wintry road conditions.

Only these tyres will allow driving safety sys-

tems such as ABS and ESP

to function opti-

mally in winter. These tyres have been devel-

oped specifically for driving in snow.

Use M+S tyres of the same make and tread on all

wheels to maintain safe handling characteris-

tics.

Always observe the maximum permissible

speed specified for the M+S tyres you have fit-

ted.

If you fit M+S tyres that have a lower maximum

permissible speed than that of the vehicle, affix

an appropriate warning label in the driver's field

of vision. This can be obtained at a qualified

specialist workshop.

Under these circumstances, you should also

restrict the maximum design speed of the vehi-

cle using the permanent limiter to the maximum

permissible speed for the M+S tyres

(Y page 166).

312

Winter operation

Wheels and tyres

When you have fitted the M+S tyres:

Check the tyre pressures (Y page 313).

Restart the tyre pressure loss warning system

(Y page 315).

Restart the tyre pressure monitor

(Y page 317).

Information about driving with an emergency

spare wheel (Y page 323).

Snow chains

WARNING

If snow chains are fitted to the rear wheels,

they may scrape against the vehicle body or

chassis components. This could cause dam-

age to the vehicle or the tyres. There is a risk

of an accident.

To avoid hazardous situations:

never fit snow chains on the rear wheels

always fit snow chains in pairs to the front

wheels.

Vehicles with steel wheels: if you fit snow

chains on steel wheels, you may damage the

hub caps. Remove the hub caps from the rel-

evant wheels before fitting the snow chains.

For safety reasons, Mercedes-Benz recom-

mends that you only use snow chains that have

been approved for Mercedes-Benz or that are of

an equivalent standard of quality. For more

information, please contact a qualified special-

ist workshop.

If you wish to fit snow chains, please bear the

following points in mind:

Snow chains cannot be fitted to all wheel/

tyre combinations. Permitted wheel/tyre

combinations (Y page 323).

Use snow chains only if the road surface is

completely snow-covered. Remove the snow

chains as soon as possible when you come to

a road that is not snow-covered.

Local regulations may restrict the use of snow

chains. Observe the appropriate regulations if

you wish to fit snow chains.

do not exceed the maximum permissible

speed of 50 km/h.

do not use Parking Pilot when snow chains are

fitted (Y page 180).

You may wish to deactivate ESP

when pulling

away with snow chains fitted (Y page 70). This

allows the wheels to spin in a controlled manner,

achieving increased propulsive force (cut).

Information about driving with an emergency

spare wheel (Y page 323).

Tyre pressure

Tyre pressure specifications

WARNING

Underinflated or overinflated tyres pose the

following risks:

the tyres may burst, especially as the load

and vehicle speed increase.

the tyres may wear excessively and/or

unevenly, which may greatly impair tyre

traction.

the driving characteristics, as well as steer-

ing and braking, may be greatly impaired.

There is a risk of an accident.

Observe the recommended tyre pressure and

check the tyre pressure of all the tyres includ-

ing the spare wheel:

at least every two weeks

when the load changes

before embarking on a longer journey

for changed operating conditions, e.g. off-

road driving

If necessary, correct the tyre pressure.

WARNING

If you fit unsuitable accessories onto tyre

valves, the tyre valves may be overloaded and

malfunction, which can cause tyre pressure

loss. Due to their design, retrofitted tyre pres-

sure monitors keep the tyre valve open. This

can also result in tyre pressure loss. There is a

risk of accident.

Only screw standard valve caps or valve caps

specifically provided by Mercedes-Benz for

your vehicle onto the tyre valve.

Tyre pressure

313

Wheels and tyres

Wheels and tyres -> Winter operation for Your Mercedes CLA 4 Door First Generation (2013-2018)

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