Get Breakdown assistance -> Flat tire Guide for Mercedes B Class SUV Second Generation (2011-2017)

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Vehicle tool kit

General notes

Vehicles with a TIREFIT kit: the TIREFIT kit is

located in the stowage well under the cargo

compartment floor.

Vehicles with a tire-change tool kit: the tire-

change tool kit is in the stowage well under the

cargo compartment floor.

Apart from certain country-specific variations,

the vehicles are not equipped with a tire-change

tool kit. Some tools for changing a wheel are

specific to the vehicle. For more information on

which tire changing tools are required and

approved to perform a wheel change on your

vehicle, consult a qualified specialist workshop.

Tools required for changing a wheel may

include, for example:

Jack

Wheel chock

Lug wrench

Alignment bolt

Vehicles with a TIREFIT kit

Tire inflation compressor

;

Tire sealant filler bottle

Towing eye

Open the tailgate.

Lift the cargo compartment floor upwards

(Y page 214).

Use the TIREFIT kit (Y page 243) or remove it.

Towing eye = is located under tire inflation

compressor :.

Vehicles with a tire-change tool kit

Open the tailgate.

Lift the cargo compartment floor upwards

(Y page 214).

Remove the tire-change tool kit.

The tire-change tool kit contains:

Jack

Lug wrench

One pair of gloves

Folding wheel chock

Flat tire

Preparing the vehicle

Your vehicle may be equipped with:

MOExtended tires (tires with run-flat proper-

ties) (Y page 242)

Vehicle preparation is not necessary on vehi-

cles with MOExtended tires

a TIREFIT kit (Y page 241)

Vehicles equipped with MOExtended tires are

not equipped with a TIREFIT kit at the factory. It

is therefore recommended that you additionally

equip your vehicle with a TIREFIT kit if you mount

tires that do not feature run-flat properties, e.g.

winter tires. A TIREFIT kit may be obtained from

a qualified specialist workshop.

Information on changing and mounting wheels

(Y page 275).

Stop the vehicle on solid, non-slippery and

level ground, as far away as possible from

traffic.

Switch on the hazard warning lamps.

Secure the vehicle against rolling away

(Y page 128).

If possible, bring the front wheels into the

straight-ahead position.

Switch off the drive system.

Vehicles without KEYLESS-GO: remove the

SmartKey from the ignition lock.

Vehicles with KEYLESS-GO: open the driv-

er's door.

The vehicle electronics now have status 0.

This is the same as the SmartKey having been

removed.

Make sure that the passengers are not endan-

gered as they do so. Make sure that no one is

near the danger area while a wheel is being

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Breakdown assistance

changed. Anyone who is not directly assisting

in the wheel change should, for example,

stand behind the barrier.

Get out of the vehicle. Pay attention to traffic

conditions when doing so.

Close the driver's door.

MOExtended tires (tires with run-flat

properties)

General notes

With MOExtended tires (tires 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 tires. The affected tire must not show

any clearly visible damage.

You can recognize MOExtended tires by the

MOExtended marking which appears on the

sidewall of the tire. You will find this marking

next to the tire size designation, the load-bear-

ing capacity and the speed index (Y page 270).

MOExtended tires may only be used in conjunc-

tion with an active tire pressure monitor.

If a pressure loss warning message appears

in the multifunction display:

observe the instructions in the display mes-

sages (Y page 185).

check the tire for damage.

if driving on, observe the following notes.

The driving distance possible in run-flat mode is

approximately 50 miles (80 km) when the vehi-

cle is partially laden. When the vehicle is fully

laden it is approximately 19 miles (30 km).

In addition to the vehicle load, the driving dis-

tance possible depends upon:

Vehicle speed

Road condition

Outside temperature

The driving distance possible in run-flat mode

may be reduced by extreme driving conditions

or maneuvers, or it can be increased through a

moderate style of driving.

The driving distance possible in run-flat mode is

counted from the moment the tire pressure loss

warning appears in the multifunction display.

You must not exceed a maximum speed of

50 mph (80 km/h).

When replacing one or all tires, please observe

the following specifications for your vehicle's

tires:

size

type and

the "MOExtended" marking

If a tire has gone flat and cannot be replaced

with a MOExtended tire, a standard tire may be

used as a temporary measure. Make sure that

you use the proper size and type (summer or

winter tire).

Vehicles equipped with MOExtended tires are

not equipped with a TIREFIT kit at the factory. It

is therefore recommended that you additionally

equip your vehicle with a TIREFIT kit if you mount

tires that do not feature run-flat properties, e.g.

winter tires. A TIREFIT kit may be obtained from

a qualified specialist workshop.

Important safety notes

WARNING

When driving in emergency mode, the driving

characteristics deteriorate, e.g. when corner-

ing, accelerating quickly and when braking.

There is a risk of an accident.

Do not exceed the stated maximum speed.

Avoid abrupt steering and driving maneuvers,

and driving over obstacles (curbs, potholes,

off-road). This applies in particular to a laden

vehicle.

Stop driving in emergency mode if:

you hear banging noises.

the vehicle starts to shake.

you see smoke and smell rubber.

ESP

is intervening constantly.

there are tears in the sidewalls of the tire.

After driving in emergency mode, have the

wheel rims checked at a qualified specialist

workshop with regard to their further use. The

defective tire must be replaced in every case.

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Flat tire

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TIREFIT kit

Important safety notes

TIREFIT is a tire sealant.

You can use TIREFIT to seal punctures of up to

0.16 in (4 mm), particularly those in the tire

tread. You can use TIREFIT at outside tempera-

tures down to Ò4 ‡ (Ò20 †).

WARNING

In the following situations, the tire sealant is

unable to provide sufficient breakdown assis-

tance, as it is unable to seal the tire properly:

there are cuts or punctures in the tire larger

than those mentioned above.

the wheel rim is damaged.

you have driven at very low tire pressures or

on a flat tire.

There is a risk of an accident.

Do not drive the vehicle. Contact a qualified

specialist workshop.

WARNING

The tire sealant is harmful and causes irrita-

tion. It must not come into contact with your

skin, eyes or clothing or be swallowed. Do not

inhale TIREFIT fumes. Keep tire sealant away

from children. There is a risk of injury.

If you come into contact with the tire sealant,

observe the following:

Rinse off the tire sealant from your skin

immediately with water.

If the tire sealant comes into contact with

your eyes, immediately rinse them thor-

oughly with clean water.

If tire sealant is swallowed, immediately

rinse your mouth out thoroughly and drink

plenty of water. Do not induce vomiting,

and seek medical attention immediately.

Immediately change out of clothing which

has come into contact with tire sealant.

If an allergic reaction occurs, seek medical

attention immediately.

Residue from the tire sealant may come out

of the filler hose after use. This could cause

stains.

Therefore, place the filler hose in the plastic

bag which contained the TIREFIT kit.

Environmental note

Have the used tire sealant bottle disposed of

professionally, e.g. at a qualified specialist

workshop.

Do not operate the tire inflation compressor

for longer than ten minutes at a time without

a break. It may otherwise overheat.

The tire inflation compressor can be operated

again once it has cooled down.

Comply with the manufacturer’s safety instruc-

tions on the sticker on the tire inflation com-

pressor.

Using the TIREFIT kit

Do not remove any foreign objects which have

penetrated the tire, e.g. screws or nails.

Remove the tire sealant bottle, the accompa-

nying TIREFIT sticker and the tire inflation

compressor from the stowage well under-

neath the cargo compartment floor

(Y page 241).

Affix part : of the TIREFIT sticker to the

instrument cluster within the driver's field of

vision.

Affix part ; of the TIREFIT sticker near the

valve on the wheel with the defective tire.

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Breakdown assistance

Remove filler hose B and connector = from

the bottom section of the tire inflation com-

pressor housing ;.

Slide the yellow filler hose connector into the

mounting on yellow cap A of tire sealant filler

bottle : until the connector engages.

With the sealing rings in front, slide yellow cap

A of tire sealant bottle : into the mounting

of tire inflation compressor ;.

Yellow cap A and both hooks must engage.

Remove the cap from valve C on the faulty

tire.

Screw filler hose D onto valve C.

Insert plug = into a 12 V socket in your vehi-

cle.

Observe the notes on sockets (Y page 218).

Turn the SmartKey to position 1 in the ignition

lock (Y page 109).

Press on and off switch ? on the tire inflation

compressor to ON.

The tire inflation compressor is switched on.

The tire is inflated.

First, tire sealant is pumped into the tire. The

pressure can briefly rise to approximately

500 kPa (5 bar/73 psi).

Do not switch off the tire inflation com-

pressor during this phase.

Let the tire inflation compressor run for a

maximum of ten minutes. The tire should then

have attained a pressure of at least 200 kPa

(2.0 bar/29 psi).

If a pressure of 200 kPa (2.0 bar/29 psi) has

been attained after five minutes, see "Tire pres-

sure reached" (Y page 245).

If a tire pressure of 200 kPa (2.0 bar/29 psi) has

not been attained after five minutes, see "Tire

pressure not reached" (Y page 244).

If tire sealant has escaped, clean it off affected

areas as quickly as possible. Use plain water if

possible.

If your clothes are soiled with tire sealant, have

them cleaned with perchloroethylene at a dry

cleaner as soon as possible.

Tire pressure not reached

If a tire pressure of 200 kPa (2.0 bar/29 psi) has

not been attained after ten minutes:

Switch off the tire inflation compressor.

Unscrew the filler hose from the valve of the

faulty tire.

Note that tire sealant may escape when you

unscrew the filler hose.

Very slowly drive forwards or reverse approx-

imately 30 ft (10 m).

Pump up the tire again.

After a maximum of ten minutes, the tire pres-

sure must be at least 200 kPa (2.0 bar/

29 psi).

WARNING

If the required tire pressure is not reached

after the specified time, the tire is too badly

damaged. The tire sealant cannot repair the

tire in this instance. Damaged tires and a tire

pressure that is too low can significantly

impair the vehicle's braking and driving char-

acteristics. There is a risk of accident.

Do not continue driving. Contact a qualified

specialist workshop.

244

Flat tire

Breakdown assistance

Tire pressure reached

WARNING

A tire temporarily sealed with tire sealant

impairs the driving characteristics and is not

suitable for higher speeds. There is a risk of

accident.

You should therefore adapt your driving style

accordingly and drive carefully. Do not exceed

the specified maximum speed with a tire that

has been repaired using tire sealant.

The maximum permissible speed for a tire

sealed with tire sealant is 50 mph (80 km/h).

The upper part of the TIREFIT sticker must be

affixed to the instrument cluster in the driver's

field of vision.

If a tire pressure of 200 kPa (2.0 bar/29 psi) has

been attained after ten minutes:

Switch off the tire inflation compressor.

Unscrew the filler hose from the valve of the

faulty tire.

Note that tire sealant may escape when you

unscrew the filler hose.

Stow the tire sealant bottle and the tire infla-

tion compressor.

Pull away immediately.

Stop after driving for approximately ten

minutes and check the tire pressure with the

tire inflation compressor.

The tire pressure must now be at least

130 kPa (1.3 bar/19 psi).

WARNING

If the required tire pressure is not reached

after driving for a short period, the tire is too

badly damaged. The tire sealant cannot repair

the tire in this instance. Damaged tires and a

tire pressure that is too low can significantly

impair the vehicle's braking and driving char-

acteristics. There is a risk of accident.

Do not continue driving. Contact a qualified

specialist workshop.

In cases such as the one mentioned above,

contact an authorized Mercedes-Benz Cen-

ter. Or call 1-800-FOR-MERCedes (in the

USA) or 1-800-387-0100 (in Canada).

Correct the tire pressure if it is still at least

130 kPa (1.3 bar/19 psi). See the Tire and

Loading Information placard on the driver's

side B-pillar or the tire pressure table in the

charge socket flap for values.

To increase the tire pressure: switch on the

tire inflation compressor.

To reduce the tire pressure: depress pres-

sure release button : next to pressure

gauge ;.

When the tire pressure is correct, unscrew the

filler hose from the valve of the sealed tire.

Note that tire sealant may escape when you

unscrew the filler hose.

Screw the valve cap onto the tire valve of the

sealed tire.

To remove the tire sealant bottle from the tire

inflation compressor, press together the lock-

ing tabs on the yellow cap.

Pull the tire sealant bottle out of the tire infla-

tion compressor.

The filler hose remains attached to the tire

sealant bottle.

Flat tire

245

Breakdown assistance

Breakdown assistance -> Flat tire for Your Mercedes B Class SUV Second Generation (2011-2017)

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