Get Practical advice -> Flat tyre Guide for Mercedes A Class 4 Door Second Generation (2004-2011)

$Practical adviceFlat tyreVehicles with AUTOTRONIC*Flat tyreUsing the TIREFIT kitX Move the selector lever to can use the TIREFIT kit to seal smallFlat tyre equipment variantspunctures, particularly those in the tyre vehicle may be equipped with:You can use TIREFIT in outdoor temperaturesFor all vehiclesR a TIREFIT kit ( Y page 200)down to -20 °C.X All occupants must get out of the vehicle.R a "Minispare" emergency spareG Risk of accidentMake sure that they are not endangered aswheel* ( Y page 201)In the following situations, your safety is atthey do risk and tyre sealant is unable toR a spare wheel* ( Y page 201)X Make sure that no one is near the dangerprovide breakdown assistance:area whilst a wheel is being changed. Any-R the MOExtended run-flat sys-R if there are cuts or punctures in the tyreone who is not directly assisting in thetem* ( Y page 262)greater than 4 mmwheel change should, for example, standbehind the barrier.R if the wheel rim is damagedPreparing the vehicleX Switch off the engine.R if you have driven at very low tyre pres-X Remove the key from the ignition or on a flat tyrei Vehicle preparation is not necessary onvehicles with MOE tyres*.Do not drive any further. Consult a qualifiedX Get out of the workshop which has the neces-X Stop your vehicle as far away from trafficX Close the driver’s specialist knowledge and tools to carryas possible on solid, non-slippery, levelout the work required.X Place the warning triangle ( Y page 200) atground.a suitable distance. Observe legal require-Mercedes-Benz recommends that you useX Switch on the hazard warning .a Mercedes-Benz Service Centre for thisX Apply the . In particular, work relevant tosafety or on safety-related systems must beVehicles with manual transmissioncarried out at a qualified specialist work-shop.X Shift to either first or reverse gear.Z* optional253$

Practical advice

Flat tyre

Vehicles with AUTOTRONIC*

Flat tyre

Using the TIREFIT kit

X Move the selector lever to P.

You can use the TIREFIT kit to seal small

Flat tyre equipment variants

punctures, particularly those in the tyre tread.

Your vehicle may be equipped with:

You can use TIREFIT in outdoor temperatures

For all vehicles

R a TIREFIT kit ( Y page 200)

down to -20 °C.

X All occupants must get out of the vehicle.

R a "Minispare" emergency spare

G Risk of accident

Make sure that they are not endangered as

wheel* ( Y page 201)

In the following situations, your safety is at

they do so.

particular risk and tyre sealant is unable to

R a spare wheel* ( Y page 201)

X Make sure that no one is near the danger

provide breakdown assistance:

area whilst a wheel is being changed. Any-

R the MOExtended run-flat sys-

R if there are cuts or punctures in the tyre

one who is not directly assisting in the

tem* ( Y page 262)

greater than 4 mm

wheel change should, for example, stand

behind the barrier.

R if the wheel rim is damaged

Preparing the vehicle

X Switch off the engine.

R if you have driven at very low tyre pres-

X Remove the key from the ignition lock.

sures or on a flat tyre

i Vehicle preparation is not necessary on

vehicles with MOE tyres*.

Do not drive any further. Consult a qualified

X Get out of the vehicle.

specialist workshop which has the neces-

X Stop your vehicle as far away from traffic

X Close the driver’s door.

sary specialist knowledge and tools to carry

as possible on solid, non-slippery, level

out the work required.

X Place the warning triangle ( Y page 200) at

ground.

a suitable distance. Observe legal require-

Mercedes-Benz recommends that you use

X Switch on the hazard warning lamps.

ments.

a Mercedes-Benz Service Centre for this

X Apply the handbrake.

purpose. In particular, work relevant to

safety or on safety-related systems must be

Vehicles with manual transmission

carried out at a qualified specialist work-

shop.

X Shift to either first or reverse gear.

* optional

253

Practical advice

Flat tyre

X Do not remove any foreign objects which

i Your vehicle may be equipped with one of

R If TIREFIT comes into contact with your

have penetrated the tyre, e.g. screws or

two different air pumps. Version 1 can be

eyes or skin, immediately rinse thor-

nails.

identified by the flap, behind which the

oughly with clean water.

hose with the pressure gauge and cable are

X Remove TIREFIT, the accompanying "max.

R Change out of clothing which has come

located; version 2 has a pressure gauge

80 km/h" sticker and the electric air pump

into contact with TIREFIT immediately.

integrated in the electric air pump.

from the stowage compartment

R If an allergic reaction occurs, consult a

( Y page 200).

doctor immediately.

Type 1

Keep TIREFIT away from children.

R If TIREFIT is swallowed, immediately

rinse your mouth out thoroughly with

water and drink plenty of water.

R Do not induce vomiting. Consult a doctor

immediately.

R Do not inhale TIREFIT fumes.

i If TIREFIT leaks out, allow it to dry. It can

1 Driver's field of vision sticker

then be removed like a layer of film.

1 TIREFIT sealant filler bottle

2 Wheel sticker

If you get TIREFIT on your clothing, have it

2 Flap

cleaned as soon as possible with perchloro-

X Affix part 1 of the sticker within the driv-

ethylene.

3 Recess

er's field of vision.

4 On/off switch

G Risk of injury

X Affix part 2 of the sticker near the valve

5 Electric connector with cable

Comply with the manufacturer's safety

on the wheel with the defective tyre.

6 Air pump hose

instructions shown on the sticker on the

G Risk of injury

electric air pump.

7 Flange

TIREFIT must not come into contact with

your skin, eyes or clothing.

254

Practical advice

Flat tyre

Do not switch off the electric pump dur-

X Open flap 2 on the electric air pump.

ing this phase.

X Pull connector 5 and air pump hose 6

from the housing.

X Let the electric pump run for five minutes.

The tyre should then have a pressure of at

X Screw air pump hose 6 onto flange 7 of

least 1.8 bar.

TIREFIT filler bottle 1.

X Place TIREFIT sealant filler bottle 1 head

! Do not operate the electric air pump for

downwards into recess 3 of the electric

longer than eight minutes at a time without

air pump.

a break. Otherwise, it may overheat.

The air pump can be operated again once

it has cooled down.

a Pressure release screw

If a pressure of 1.8 bar is not reached after

b Pressure gauge

five minutes:

X Make sure pressure release screw a on

X Switch off and disconnect the electric air

pressure gauge b is fully closed.

pump and drive the vehicle forwards or

X Screw filler hose 8 onto valve 9.

backwards approximately 10 m.

This distributes the TIREFIT more evenly.

X Insert plug 5 into the socket of the ciga-

X Remove TIREFIT sealant filler bottle 1

rette lighter* ( Y page 163) or into a 12 V

from the electric pump.

power socket in your vehicle .

8 Filler hose

X Pump up the tyre again.

X Turn the key to position 2 ( Y page 62) in

9 Valve

the ignition lock.

G Risk of accident

X Remove the cap from valve 9 on the faulty

X Press on/off switch 4 on the electric air

If a pressure of 1.8 bar is not achieved after

tyre.

pump to I.

five minutes, the tyre is too badly damaged.

The electric air pump is switched on. The

Do not drive any further. Consult a qualified

tyre is inflated.

specialist workshop which has the neces-

sary specialist knowledge and tools to carry

i First, TIREFIT is pumped into the tyre. The

out the work required. Mercedes-Benz rec-

pressure can briefly rise to around 5 bar.

* optional

255

Practical advice

Flat tyre

H Environmental note

ommends that you use a Mercedes-Benz

Service Centre for this purpose. In particu-

lar, work relevant to safety or on safety-

Have the used TIREFIT kit disposed of pro-

lar, work relevant to safety or on safety-

related systems must be carried out at a

fessionally, e.g. at a Mercedes-Benz

related systems must be carried out at a

qualified specialist workshop.

Service Centre.

qualified specialist workshop.

X If the tyre pressure is still at least 1.3 bar,

X Have the TIREFIT kit replaced every four

If a tyre pressure of 1.8 bar is reached:

correct it (see fuel filler flap for values).

years at a qualified specialist workshop,

To increase the tyre pressure: switch on

e.g. a Mercedes-Benz Service Centre.

X Press on/off switch 4 on the electric air

the electric air pump.

pump to 0.

To reduce the tyre pressure: open pres-

Type 2

The electric air pump is switched off.

sure release screw a on pressure

X Disconnect the electric air pump and stow

gauge b.

it away.

X Drive to the nearest workshop and have the

X Fold up the warning triangle and stow it

tyre changed there.

away.

X Have the TIREFIT kit replaced as soon as

X Pull away immediately.

possible at a qualified specialist workshop,

This distributes the TIREFIT more evenly

e.g. at a Mercedes-Benz Service Centre.

around the tyre.

G Risk of accident

X Stop after driving for approximately ten

minutes and check the tyre pressure with

Do not exceed the maximum speed of

the electric air pump.

80 km/h.

G Risk of accident

The "max. 80 km/h" sticker must be affixed

1 TIREFIT sealant filler bottle

within the driver's field of vision.

If the tyre pressure is now lower than

2 Recess

1.3 bar, the tyre is too badly damaged. Do

The vehicle's handling characteristics may

3 On/off switch

not drive any further. Consult a qualified

be affected.

4 Electric connector with cable

specialist workshop which has the neces-

5 Air pump hose

sary specialist knowledge and tools to carry

6 Flange

out the work required. Mercedes-Benz rec-

ommends that you use a Mercedes-Benz

256

Practical advice

Flat tyre

X Pull connector 4 and air pump hose 5

X Insert plug 4 into the socket of the ciga-

If a pressure of 1.8 bar is not reached after

from the housing.

five minutes:

rette lighter* ( Y page 163) or into a 12 V

power socket in your vehicle .

X Screw air pump hose 5 onto flange 6 of

X Switch off and disconnect the electric air

TIREFIT filler bottle 1.

X Turn the key to position 2 ( Y page 62) in

pump and drive the vehicle forwards or

the ignition lock.

backwards approximately 10 m.

X Place TIREFIT sealant filler bottle 1 head

This distributes the TIREFIT more evenly.

downwards into recess 2 of the electric

X Press on/off switch 3 on the electric air

X Remove TIREFIT sealant filler bottle 1

air pump.

pump to I.

from the electric pump.

The electric air pump is switched on. The

X Pump up the tyre again.

tyre is inflated.

G Risk of accident

i First, TIREFIT is pumped into the tyre. The

If a pressure of 1.8 bar is not achieved after

pressure can briefly rise to around 5 bar.

five minutes, the tyre is too badly damaged.

Do not switch off the electric pump dur-

Do not drive any further. Consult a qualified

ing this phase.

specialist workshop which has the neces-

X Let the electric pump run for five minutes.

sary specialist knowledge and tools to carry

The tyre should then have a pressure of at

out the work required. Mercedes-Benz rec-

least 1.8 bar.

ommends that you use a Mercedes-Benz

Service Centre for this purpose. In particu-

! Do not operate the electric air pump for

7 Valve

lar, work relevant to safety or on safety-

longer than eight minutes at a time without

8 Filler hose

related systems must be carried out at a

a break. Otherwise, it may overheat.

qualified specialist workshop.

X Remove the cap from valve 7 on the faulty

The air pump can be operated again once

tyre.

it has cooled down.

If a tyre pressure of 1.8 bar is reached:

X Screw filler hose 8 onto valve 7.

X Press on/off switch 3 on the electric air

pump to 0.

The electric air pump is switched off.

X Disconnect the electric air pump and stow

it away.

* optional

257

Practical advice

Flat tyre

X Fold up the warning triangle and stow it

G Risk of accident

away.

Do not exceed the maximum speed of

X Pull away immediately.

80 km/h.

This distributes the TIREFIT more evenly

The "max. 80 km/h" sticker must be affixed

around the tyre.

within the driver's field of vision.

X Stop after driving for approximately ten

The vehicle's handling characteristics may

minutes and check the tyre pressure with

be affected.

the electric air pump.

H Environmental note

G Risk of accident

Have the used TIREFIT kit disposed of pro-

If the tyre pressure is now lower than

9 Pressure release button

fessionally, e.g. at a Mercedes-Benz

1.3 bar, the tyre is too badly damaged. Do

Service Centre.

not drive any further. Consult a qualified

a Pressure gauge

specialist workshop which has the neces-

X If the tyre pressure is still at least 1.3 bar,

X Have the TIREFIT kit replaced every four

sary specialist knowledge and tools to carry

correct it (see fuel filler flap for values).

years at a qualified specialist workshop,

out the work required. Mercedes-Benz rec-

e.g. a Mercedes-Benz Service Centre.

To increase the tyre pressure: switch on

ommends that you use a Mercedes-Benz

the electric air pump.

Service Centre for this purpose. In particu-

lar, work relevant to safety or on safety-

To reduce the tyre pressure: press yellow

related systems must be carried out at a

pressure release button 9 next to pres-

qualified specialist workshop.

sure gauge a.

X Drive to the nearest workshop and have the

tyre changed there.

X Have the TIREFIT kit replaced as soon as

possible at a qualified specialist workshop,

e.g. at a Mercedes-Benz Service Centre.

258

Practical advice

Flat tyre

X On downhill gradients: place chocks or

Changing a wheel/fitting the spare

pose. In particular, work relevant to safety

similar behind both wheels of the other

wheel*

or on safety-related systems must be car-

axle.

ried out at a qualified specialist workshop.

G Risk of accident

The wheel dimensions and tyre size of the

Preparing the vehicle

"Minispare" emergency spare wheel* may

X Prepare the vehicle as described

differ from those of the standard wheels.

( Y page 253).

Your vehicle's handling characteristics will

X If a trailer is coupled, uncouple it.

change when a "Minispare" emergency

X Place the wheels in the straight-ahead posi-

spare wheel* is fitted. Adapt your style of

tion.

driving accordingly.

X Take the "Minispare" emergency spare

The "Minispare" emergency spare wheel*

wheel* or the spare wheel* out of the stow-

may only be used for a short time. Do not

age well under the luggage compartment

exceed the maximum speed of 80 km/h

floor.

Steel wheel with wheel trim

and do not deactivate ESP ® .

X Take the following out of the left-hand

X Vehicles with steel wheels: carefully

Never drive the vehicle with more than one

stowage compartment in the luggage com-

reach into two wheel trim openings and

"Minispare" emergency spare wheel* fit-

partment

remove the wheel trim.

ted.

R the vehicle tool kit

G Risk of accident

R the wheel chock

Have the "Minispare" emergency spare

R the jack

wheel* or the spare wheel* replaced with

a new wheel as soon as possible at a quali-

X Secure the vehicle to prevent it from rolling

fied specialist workshop which has the nec-

away.

essary specialist knowledge and tools to

On level ground: place chocks or similar

carry out the work required. Mercedes-

items under the front and rear of the wheel

Benz recommends that you use a

that is diagonally opposite the wheel you

Mercedes-Benz Service Centre for this pur-

wish to change.

* optional

259

$Practical adviceFlat tyreOtherwise, the jack will not be able to ach-ieve its load-bearing capacity due to therestricted not start the engine at any time whilethe wheel is being not lie under the vehicle when it is beingsupported by the jack. If you do not raisethe vehicle as described, it could slip off thejack (e.g. if the engine is started or a dooror the tailgate is opened or closed) and youcould be seriously injured.1 Wheel wrench1 Jacking point2 JackG Risk of accidentX Using wheel wrench 1, loosen the bolts on3 Ratchet ring spanner with socket wrenchthe wheel you wish to change by about oneIf you fail to position the jack correctly, thefull turn. Do not unscrew the bolts com-vehicle may:X Position jack 2 at jacking point 1.pletely.R slip off the jackR injure you or othersRaising the vehicleR be damagedG Risk of injuryThus, it is important to make sure that theThe jack is designed only to raise the vehi-jack is positioned correctly in the respec-cle for a short time while a wheel is beingtive jacking points. Before positioning , remove any dirt that may have collec-The vehicle must be placed on stands if youted in the jacking to work under jacking points for the jack are locatedMake sure that the jack is placed on a firm,behind the wheel housings of the front wheelsnon-slip, level surface. Do not use woodenand in front of the wheel housings of the rearblocks or similar objects as a jack .260$

Practical advice

Flat tyre

Otherwise, the jack will not be able to ach-

ieve its load-bearing capacity due to the

restricted height.

Do not start the engine at any time while

the wheel is being changed.

Do not lie under the vehicle when it is being

supported by the jack. If you do not raise

the vehicle as described, it could slip off the

jack (e.g. if the engine is started or a door

or the tailgate is opened or closed) and you

could be seriously injured.

1 Wheel wrench

1 Jacking point

2 Jack

G Risk of accident

X Using wheel wrench 1, loosen the bolts on

3 Ratchet ring spanner with socket wrench

the wheel you wish to change by about one

If you fail to position the jack correctly, the

full turn. Do not unscrew the bolts com-

vehicle may:

X Position jack 2 at jacking point 1.

pletely.

R slip off the jack

R injure you or others

Raising the vehicle

R be damaged

G Risk of injury

Thus, it is important to make sure that the

The jack is designed only to raise the vehi-

jack is positioned correctly in the respec-

cle for a short time while a wheel is being

tive jacking points. Before positioning the

changed.

jack, remove any dirt that may have collec-

The vehicle must be placed on stands if you

ted in the jacking points.

intend to work under it.

The jacking points for the jack are located

Make sure that the jack is placed on a firm,

behind the wheel housings of the front wheels

non-slip, level surface. Do not use wooden

and in front of the wheel housings of the rear

blocks or similar objects as a jack underlay.

wheels.

260

Practical advice

Flat tyre

X Make sure that the base of the jack is posi-

necessary specialist knowledge and tools

tioned directly under jacking point 1.

to carry out the work required. Mercedes-

Benz recommends that you use a

X Take ratchet ring spanner and socket 3

Mercedes-Benz Service Centre or Service

out of the vehicle tool kit.

24h for this purpose. In particular, work rel-

X Take ratchet ring spanner 3 out of the

evant to safety or on safety-related systems

vehicle tool kit and place it on the jack so

must be carried out at a qualified specialist

that the lettering AUF is visible.

workshop.

X Raise the vehicle with ratchet ring spanner

3 until the tyre is at most three centime-

G Risk of accident

tres off the ground.

Only use wheel bolts that have been

X Unscrew the wheel bolts.

designed for the wheel and the vehicle. For

X Place the "Minispare" emergency spare

safety reasons, Mercedes-Benz recom-

wheel* or the spare wheel onto the wheel

! Do not place wheel bolts in sand or on a

mends that you only use wheel bolts which

hub and push it on.

dirty surface. This could cause damage to

have been approved for Mercedes-Benz

the bolt and wheel hub threads.

vehicles. Other bolts could work loose.

Do not tighten the wheel bolts completely

X Remove the wheel.

while the vehicle is still jacked up. The vehi-

cle could topple off the jack.

Fitting a new wheel

X Clean the wheel and wheel hub contact

G Risk of accident

surfaces.

Replace damaged or corroded wheel bolts.

Never oil or grease wheel bolts.

G Risk of accident

If a wheel hub thread is damaged, you must

X Tighten the wheel bolts until they are fin-

not drive the vehicle any further. Consult a

ger-tight.

qualified specialist workshop which has the

* optional

261

Practical advice

Flat tyre

Lowering the vehicle

You must not exceed a maximum speed of

could work loose if they are not tightened

80 km/h.

to a torque of 130 Nm.

X Place the ratchet ring spanner onto the

G Risk of accident

hexagon nut of the jack so that the lettering

X Turn the jack back to its initial position and

AB is visible.

The handling characteristics of your vehicle

store it and the rest of the vehicle tool kit

X Lower the vehicle by turning the ratchet

deteriorate in run-flat mode, for example:

in the stowage compartment in the luggage

ring spanner until the vehicle is once again

R when cornering

compartment.

standing firmly on the ground.

R when braking

i When you are driving with the "Minispare"

X Place the jack to one side.

R when accelerating rapidly

emergency spare wheel* fitted, the tyre

pressure loss warning system* cannot

Adapt your driving style accordingly and

function reliably.

avoid sudden changes in direction and sud-

den acceleration, as well as driving over

obstacles (i.e. kerbs, potholes), and driving

MOExtended run-flat system*

off-road. This is particularly the case when

the vehicle is heavily laden.

The MOExtended run-flat system may only be

used in conjunction with the tyre pressure

The maximum permissible distance that

loss warning system.

can be driven in run-flat mode depends to

a large extent on the loads placed on the

! The maximum permissible distance which

vehicle. It can be shorter due to high

can be driven in run-flat mode depends on

1 – 5 Wheel bolts

speeds, a heavy load, sudden acceleration

the load in the vehicle. It is 50 km if the

and/or manoeuvring, the road surface con-

vehicle is partially laden and 30 km if fully

X Tighten the wheel bolts evenly in a cross-

dition, outside temperature, etc., or further,

laden.

wise pattern in the sequence indica-

if you drive carefully and conservatively.

The maximum range that can be driven in

ted (1 to 5). The tightening torque is

Do not continue to drive in run-flat mode if:

emergency operation is measured from the

130 Nm.

R you hear banging noises.

point at which the pressure loss warning

G Risk of accident

message appears in the multi-function dis-

R the vehicle starts to shake.

Have the tightening torque checked imme-

play.

R you see smoke and smell rubber.

diately after a wheel is changed. The wheels

* optional

262

Practical advice -> Flat tyre for Your Mercedes A Class 4 Door Second Generation (2004-2011)

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