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Flat tyre
278If you get TIREFIT on your clothing, have it
cleaned as soon as possible with perchloro-
ethylene. G
Risk of injury
Comply with the manufacturer's safety
instructions shown on the sticker on the
electric air pump.
i Your vehicle may be equipped with one of
two different air pumps. Version 1 can be
identified by the flap, behind which the
hose with the pressure gauge and cable are
located; version 2 has a pressure gauge
integrated in the electric air pump. Version 1 Version 1
1
TIREFIT sealant filler bottle
2 Flap
3 Recess
4 On/off switch
5 Electric connector with cable
6 Air pump hose
7 Flange
X Open flap 2 on the electric air pump.
X Pull connector 5 and air pump hose 6
from the housing. X
Screw air pump hose 6 onto flange 7 of
TIREFIT sealant filler bottle 1.
X Place TIREFIT sealant filler bottle 1 head
downwards into recess 3 of the electric
air pump. 8
Filler hose
9 Valve
X Remove the cap from valve 9 on the faulty
tyre. Practical advice
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Flat tyre
279a
Pressure release screw
b Pressure gauge
X Make sure pressure release screw a on
pressure gauge b is fully closed.
X Screw filler hose 8 onto valve 9.
X Insert plug 5 into the socket of the ciga-
rette lighter* (Y page 181) or into a 12V
power socket in your vehicle
(Y page 182).
X Turn the key to position 1 (Y page 74) in
the ignition lock. X
Press on/off switch 4 on the electric air
pump to I.
The electric air pump is switched on. The
tyre is inflated.
i First, TIREFIT is pumped into the tyre. The
pressure can briefly rise to around 5 bar.
Do not switch off the electric pump dur-
ing this phase.
X Let the electric pump run for five minutes.
The tyre should then have a pressure of at
least 1.8 bar.
! Do not operate the electric air pump for
longer than six minutes without a break.
Otherwise, it may overheat.
The air pump can be operated again once
it has cooled down.
If a pressure of 1.8 bar is not reached after
five minutes:
X Switch off and disconnect the electric air
pump and drive the vehicle forwards or
backwards approximately 10 m.
This distributes the TIREFIT more evenly.
X Remove TIREFIT filler bottle 1 from the
electric pump.
X Pump up the tyre again.
G Risk of accident
If a pressure of 1.8 bar is not achieved after
five minutes, the tyre is too badly damaged.
Do not drive any further. Consult a qualified
specialist workshop which has the neces-
sary specialist knowledge and tools to carry
out the work required. Mercedes-Benz rec-
ommends that you use a Mercedes-Benz
Service Centre for this purpose. In particu-
lar, work relevant to safety or on safety-
related systems must be carried out at a
qualified specialist workshop.
If a tyre pressure of 1.8 bar is reached:
X Press on/off switch 4 on the electric air
pump to 0.
The electric air pump is switched off.
X Disconnect the electric air pump and stow
it away.
X Fold up the warning triangle and stow it
away.
X Pull away immediately.
This distributes the TIREFIT more evenly
around the tyre.
X Stop after driving for approximately ten
minutes and check the tyre pressure with
the electric air pump.
Practical advice
* optional
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Flat tyre
280 G
Risk of accident
If the tyre pressure is now lower than
1.3 bar, the tyre is too badly damaged. Do
not drive any further. Consult a qualified
specialist workshop which has the neces-
sary specialist knowledge and tools to carry
out the work required. Mercedes-Benz rec-
ommends that you use a Mercedes-Benz
Service Centre for this purpose. In particu-
lar, work relevant to safety or on safety-
related systems must be carried out at a
qualified specialist workshop.
X If the tyre pressure is still at least 1.3 bar,
correct it (see fuel filler flap for values).
To increase the tyre pressure: switch on
the electric air pump.
To reduce the tyre pressure: open pres-
sure release screw a on pressure
gauge b.
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. G
Risk of accident
Do not exceed the maximum speed of 80
km/h.
The “max. 80 km/h” sticker must be affixed
within the driver's field of vision.
The vehicle's handling characteristics may
be affected. H
Environmental note
Have the used TIREFIT kit disposed of pro-
fessionally, e.g. at a Mercedes-Benz
Service Centre.
X Have the TIREFIT kit replaced every four
years at a qualified specialist workshop,
e.g. a Mercedes-Benz Service Centre. Version 2 1
TIREFIT sealant filler bottle
2 Recess
3 On/off switch
4 Electric connector with cable
5 Air pump hose
6 Flange
X Pull connector with cable 4 and air pump
hose 5 from the housing.
X Screw air pump hose 5 onto flange 6 of
TIREFIT filler bottle 1.
X Place TIREFIT sealant filler bottle 1 head
downwards into recess 2 of the electric
air pump. Practical advice
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Flat tyre
2817
Valve
8 Filler hose
X Remove the cap from valve 7 on the faulty
tyre.
X Screw filler hose 8 onto valve 7.
X Insert plug 4 into the socket of the ciga-
rette lighter* (Y page 181) or into a 12V
power socket in your vehicle
(Y page 182).
X Turn the key to position 1 in the ignition
lock. X
Press on/off switch 3 on the electric air
pump to I.
The electric air pump is switched on. The
tyre is inflated.
i First, TIREFIT is pumped into the tyre. The
pressure can briefly rise to around 5 bar.
Do not switch off the electric pump dur-
ing this phase.
X Let the electric pump run for five minutes.
The tyre should then have a pressure of at
least 1.8 bar.
! Do not operate the electric air pump for
longer than six minutes without a break.
Otherwise, it may overheat.
The air pump can be operated again once
it has cooled down.
If a pressure of 1.8 bar is not reached after
five minutes:
X Switch off and disconnect the electric air
pump and drive the vehicle forwards or
backwards approximately 10 m.
This distributes the TIREFIT more evenly.
X Remove TIREFIT filler bottle 1 from the
electric pump.
X Pump up the tyre again.
G Risk of accident
If a pressure of 1.8 bar is not achieved after
five minutes, the tyre is too badly damaged.
Do not drive any further. Consult a qualified
specialist workshop which has the neces-
sary specialist knowledge and tools to carry
out the work required. Mercedes-Benz rec-
ommends that you use a Mercedes-Benz
Service Centre for this purpose. In particu-
lar, work relevant to safety or on safety-
related systems must be carried out at a
qualified specialist workshop.
If a tyre pressure of 1.8 bar is reached:
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.
X Fold up the warning triangle and stow it
away.
X Pull away immediately.
This distributes the TIREFIT more evenly
around the tyre.
X Stop after driving for approximately ten
minutes and check the tyre pressure with
the electric air pump.
Practical advice
* optional
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Flat tyre
282 G
Risk of accident
If the tyre pressure is now lower than
1.3 bar, the tyre is too badly damaged. Do
not drive any further. Consult a qualified
specialist workshop which has the neces-
sary specialist knowledge and tools to carry
out the work required. Mercedes-Benz rec-
ommends that you use a Mercedes-Benz
Service Centre for this purpose. In particu-
lar, work relevant to safety or on safety-
related systems must be carried out at a
qualified specialist workshop.9 Pressure release button
a Pressure gauge
X If the tyre pressure is still at least 1.3 bar,
correct it (see fuel filler flap for values). To increase the tyre pressure:
switch on
the electric air pump.
To reduce the tyre pressure: press yellow
pressure release button 9 next to pres-
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.
G Risk of accident
Do not exceed the maximum speed of 80
km/h.
The “max. 80 km/h” sticker must be affixed
within the driver's field of vision.
The vehicle's handling characteristics may
be affected.
H Environmental note
Have the used TIREFIT kit disposed of pro-
fessionally, e.g. at a Mercedes-Benz
Service Centre.
X Have the TIREFIT kit replaced every four
years at a qualified specialist workshop,
e.g. a Mercedes-Benz Service Centre.
Changing a wheel and fitting the spare
wheel*
G Risk of accident
The wheel dimensions and tyre size of the
spare wheel*, the emergency spare
wheel* and standard wheels may differ
from one another.
Your vehicle's handling characteristics will
be altered when a "Minispare"/collapsible
emergency spare wheel* is fitted. Adapt
your style of driving accordingly.
The “Minispare”/collapsible emergency
spare wheel* must only be used as a tem-
porary measure. Do not exceed the maxi-
mum speed of 80 km/h and do not
deactivate ESP ®
.
Never drive the vehicle with more than one
“Minispare”/collapsible emergency spare
wheel* fitted.
G Risk of accident
Have the “Minispare”/collapsible emer-
gency spare wheel* or the spare wheel*
replaced with a new wheel as soon as pos-
sible at a qualified specialist workshop
which has the necessary specialist knowl-
edge and tools to carry out the work
Practical advice
* optional
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Flat tyre
283required. Mercedes-Benz recommends
that you use a Mercedes-Benz Service
Centre for this purpose. In particular, work
relevant to safety or on safety-related sys-
tems must be carried out at a qualified
specialist workshop.
Preparing the vehicle X
Prepare the vehicle as described
(Y page 276).
X Place the wheels in the straight-ahead posi-
tion.
X Take the following from the stowage well
beneath the boot floor:
R
the "Minispare"/collapsible emergency
spare wheel* or the spare wheel*
R the vehicle tool kit
R the wheel chock
R the jack
X Secure the vehicle to prevent it from rolling
away.
On level ground: place chocks or similar
under the front and rear of the wheel that
is diagonally opposite the wheel you wish
to change. X
On downhill gradients: place chocks or
similar under both wheels of the other axle.
Raising the vehicle 1
Wheel wrench
X Using wheel wrench 1, loosen the bolts on
the wheel you wish to change by about one
full turn. Do not unscrew the bolts com-
pletely. G
Risk of accident
If you fail to position the jack correctly, the
vehicle may:
R slip off the jack
R injure you or others
R be damaged It is thus important to ensure that the jack
is positioned correctly in the respective
jacking points. Before positioning the jack,
remove any dirt that may have collected in
the jacking points.
The jacking points for the jack are located
behind the wheel housings of the front wheels
and in front of the wheel housings of the rear
wheels. 1
Jacking point
2 Jack
3 Crank
X Position jack 2 at jacking point 1. Practical advice
* optional
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Flat tyre
284X
Make sure that the base of the jack is posi-
tioned directly under jacking point 1.
X Turn crank 3 until the tyre is raised a max-
imum of 3 cm from the ground.
X Unscrew the uppermost wheel bolt com-
pletely.1 Centring pin
X In place of the wheel bolt, screw centring
pin 1 from the vehicle tool kit into the
thread.
X Unscrew the remaining wheel bolts fully.
! Do not place wheel bolts in sand or on a
dirty surface. This could cause damage to
the bolt and wheel hub threads.
X Remove the wheel.
Fitting a new wheel
G Risk of accident
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
not drive the vehicle any further. Consult a
qualified specialist workshop which has the
necessary specialist knowledge and tools
to carry out the work required. Mercedes-
Benz recommends that you use a
Mercedes-Benz Service Centre or Service
24h for this purpose. In particular, work rel-
evant to safety or on safety-related systems
must be carried out at a qualified specialist
workshop.
G Risk of accident
Only use wheel bolts that have been
designed for the wheel and the vehicle. For
safety reasons, Mercedes-Benz recom-
mends that you only use wheel bolts which
have been approved for Mercedes-Benz
vehicles. Other bolts could work loose.
Do not tighten the wheel bolts completely
while the vehicle is still jacked up. The vehi-
cle could topple off the jack.
Practical advice
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Flat tyre
2851
Wheel bolts for all wheels supplied by the
factory
X Clean the wheel and wheel hub contact
surfaces.
XPlace the "Minispare"/collapsible emer-
gency spare wheel* or the spare wheel
onto the centring pin and push it on.
XTighten the wheel bolts until they are fin-
ger-tight.
X Unscrew the centring pin.
X Tighten the last wheel bolt until it is finger-
tight.
Inflating the collapsible emergency
spare wheel* with the electric air pump
G Risk of accident
Pump up the collapsible emergency spare
wheel before lowering the vehicle, as you
could otherwise damage the wheel rim. The electric air pump is located in the stow-
age well under the boot floor.
X
Take the electric air pump out of the stow-
age well under the boot floor.
1 Flap
2 On/off switch
3 Electric connector with cable
4 Air pump hose with pressure gauge and
pressure release screw
5 Union nut
X Open flap 1.
X Pull connector 3 and air hose 4 out of
the housing.
X Make sure that the pressure release screw
on the pressure gauge is closed.
X Remove the cap from the valve on the tyre.
Practical advice
* optional
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Z