Get Wheels and tyres -> Winter operation Guide for Mercedes B Class SUV First Generation (2005-2010)

Observe the notes on the emergency spare

wheel (Y page 304).

MOExtended tyres (tyres with run-flat

characteristics)

With MOExtended tyres (tyres with run-flat

characteristics), you can continue to drive

your vehicle even if there is a total loss of

pressure in one or more tyres.

MOExtended tyres may only be used in con-

junction with an activated tyre pressure loss

warning system and only on wheels specifi-

cally tested by Mercedes-Benz.

Notes on driving with MOExtended tyres in

the event of a flat tyre can be found in the

"Breakdown assistance" section

(Y page 276).

Vehicles with MOExtended tyres are not

equipped with a TIREFIT kit at the factory.

It is therefore recommended that you addi-

tionally equip your vehicle with the TIREFIT

kit if you fit tyres that do not feature run-

flat characteristics, e.g. winter tyres. A

TIREFIT kit can be obtained from a qualified

specialist workshop.

Winter operation

Points to remember

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 298).

Driving with summer tyres

At temperatures below +7 †, summer tyres

lose elasticity and therefore traction and

braking power; change the tyres on your vehi-

cle 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.

M+S tyres

WARNING

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

4mmare 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.

When you have fitted the M+S tyres:

Check the tyre pressures (Y page 295).

Restart the tyre pressure loss warning sys-

tem (Y page 296).

At temperatures below +7 †, use winter tyres

or all-seasontyres.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 pro-

vide the best possible grip in wintry road con-

ditions. Only these tyres will allow driving

safety systems such as ABS and ESP

function optimally in winter, as these tyres

have been designed specifically for driving on

snow.

Use M+S tyres of the same make and tread

on all wheels to maintain safe handling char-

acteristics.

Always observe the maximum permissible

speed specified for the M+S tyres you have

fitted.

If you fit M+S tyres that have a lower maxi-

mum permissible speed than that of the vehi-

cle, affix an appropriate warning sign in the

driver's field of vision. This can be obtained in

a qualified specialist workshop.

Under these circumstances, you should also

restrict the maximum speed of the vehicle

using permanent SPEEDTRONIC so that it

does not exceed the maximum permissible

speed for the M+S tyres (Y page 154).

294

Winter operation

Wheels and tyres

Snow chains

If snow chains are fitted to the rear

wheels, they may rub against the bodywork

or parts of the suspension. This may cause

damage to the vehicle or the tyres.

Vehicles with steel wheels: if you wish

to fit snow chains to steel wheels, make

sure that you remove the respective

wheels' hubcaps first. The hubcaps may

otherwise be damaged.

For safety reasons, Mercedes-Benz recom-

mends that you only use snow chains that

have been specially approved for your vehicle

by Mercedes-Benz, or that are of a corre-

sponding standard of quality.

If you intend to fit snow chains, please bear

the following points in mind:

snow chains cannot be fitted to all wheel-

tyre combinations. Permissible wheel-tyre

combinations (Y page 302).

snow chains must not be fitted to the emer-

gency spare wheel, e.g. a Minispare emer-

gency spare wheel.

fit snow chains only in pairs and only to the

front wheels. Observe the manufacturer's

installation instructions.

If snow chains are fitted, you cannot use

Active Parking Assist (Y page 166).

Do not exceed the maximum permissible

speed of 50 km/h.

You may wish to deactivate

ESP

(Y page 66) when pulling away with

snow chains fitted. This way you can allow

the wheels to spin in a controlled manner,

achieving an increased driving force (cut-

ting action).

Tyre pressure

Tyre pressure specifications

WARNING

Tyres with too low or too high tyre pressure

contain the following hazards:

they can burst, in particular if the vehicle is

heavily laden or when driven at high

speeds.

the tyres can wear excessively and/or

unevenly, which can severely impair tyre

traction.

the driving, steering and braking character-

istics may be severely impaired.

There is a risk of accident.

Follow recommended tyre inflation pressures

and check the pressure of all the tyres includ-

ing the spare wheel:

at least every two weeks

if the load changes

before beginning a long 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.

WARNING

If the tyre pressure drops repeatedly, the

wheel, valve or tyre may be damaged. Tyre

pressure that is too low may result in a tyre

blow-out. There is a risk of accident.

Tyre pressure

295

Wheels and tyres

Wheels and tyres -> Winter operation for Your Mercedes B Class SUV First Generation (2005-2010)

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