2012 SMART FORTWO COUPE flat tire

result in handling or steering problems, or
brake failure.
X Drive to the nearest authorized smart
center, to have the damaged tire
replaced.
X Contact an authorized smart center as
soon as possible to obtain a new filler
hose and a new tire sealant container.
X Bring used tire sealant materials to an
authorized smart center for proper
disposal.
X Replace your tire sealant container
every 4 years. Replacement containers
are available at any authorized smart
center. G
WARNING
After changing a tire, contact a smart
center to make sure the bolts holding the
wheel to the car are tight enough.
Otherwise, the wheels could come off. Each
bolt should be tightened to a torque of
81 lb‑ft (110 Nm). Sealing a tire (Version 2)
X Take the tire repair kit from the
passenger footwell (Y page 158). X
Take electrical plug = and filler hose
B from the bottom of the electric air
pump housing.
X Engage the yellow plug of filler hose B
in the opening in yellow closure cap A.X
With the O-ring seals towards the
electric

air pump housing, insert yellow
closure cap A into fixture ;.
X Push tire sealant container : into
fixture ; until both hooks of yellow
closure cap A engage. X
Unscrew the valve cap from tire valve
C of the damaged tire.
X Screw the end of filler hose B onto tire
valve C.
X Insert electrical plug = into the
auxiliary power outlet

(Y page 114).
X Insert the key in the starter switch and
turn it to position 1.
i The
vehicle’s battery is drained by use
of the electric air pump. You should
therefore keep the engine running — in
the open air — while inflating the tire.
X Press ON
on electric air pump switch ?.
The electric air pump is switched on and
inflates the tire.
i First, the sealant is pumped into the
tire. The pressure may briefly increase
to

a high value. This is normal and not an
indication of a malfunction. Do not
switch off the electric air pump.
X Let the electric air pump inflate the tire
for a maximum of ten minutes.
The

pressure gauge must display at least
200 kpa (2.0 bar, 29 psi).
! Do not operate the electric air pump
longer than ten minutes without
interruption.

Otherwise it may overheat. Flat tire
191
>> Practical hints. Z

You may operate the electrical air pump
again after it has cooled off.
X If a tire inflation pressure of at least
200 kpa (2.0 bar, 29 psi)
is not attained,
turn off the electric air pump by
pressing OFF on electric air pump
switch ?.
X Unscrew the end of filler hose ? from
tire valve C.
X After clearing the area around the
vehicle of people and obstacles, drive
vehicle back or forth very slowly
approximately 30 ft (10 m).
This

serves to better distribute the tire
sealant material inside the tire.
X Screw the end of filler hose ? onto tire
valve C.
X Inflate the tire again. G
WARNING
If a tire inflation pressure of
200
kPa (2.0 bar, 29 psi) is not attained, the
tire is too severely damaged for the tire
sealant to provide a reliable tire repair.
In this case, the tire sealant cannot
properly seal the tire.
Do not drive the vehicle.
Contact the nearest smart center for
assistance or call Roadside Assistance.
X After attaining a tire inflation pressure
of

at least 200 kPa (2.0 bar, 29 psi), press
OFF on electric air pump switch ?.
The electric air pump is switched off.
X Turn the key in the starter switch to
position 0.
X Unscrew the end of filler hose ? from
tire valve C.
X Place the tire repair kit securely in the
vehicle.
X Drive off immediately.
The tire sealant will distribute itself
evenly inside the tire. G
WARNING
Do not exceed vehicle speed of 50 mph
(80 km/h). A tire sealant repair is not
designed to operate at higher speeds.
The sticker must be attached on the
instrument cluster where it will be easily
seen by the driver.
Vehicle handling characteristics of a tire
sealant repaired tire may change. Adapt
your driving accordingly.
X After driving for about 1.8 miles (3 km)
or

ten minutes, stop and exit the vehicle
taking all of the appropriate safety
precautions.
X Take the tire repair kit from the vehicle.
X Screw the end of filler hose ? onto tire
valve C. X
Check the tire inflation pressure using
pressure gauge E. G
WARNING
If tire inflation pressure has fallen below
130 kPa (1.3 bar, 19 psi) do not continue to
drive the vehicle.
Park your vehicle safely away from the
roadway and contact the nearest smart
center or call Roadside Assistance.
Have the damaged tire replaced.
X If the tire inflation pressure is at least
130

kPa (1.3 bar, 19 psi), inflate or deflate
the tire to correct tire inflation
pressure (see Tire and Loading 192
Flat tire
>> Practical hints.

Information placard located on the
driver’s door B‑pillar).
R
To increase the tire inflation
pressure: Switch on the electric air
pump.
R To decrease the tire inflation
pressure: Press deflate button D.
Recheck the tire inflation pressure
with the electric air pump’s pressure
gauge E.
X When the tire inflation pressure is
correct, unscrew the end of filler
hose ? from tire valve C.
X Screw the valve cap onto the tire valve. X
To detach tire sealant container : from
the electric air pump, press both
latches.
X Pull tire sealant container : out of
fixture ;.
Filler hose ? remains on tire sealant
container :.
X Place the tire repair kit securely in the
vehicle.
! The manufacturer is unable to
guarantee that all tire punctures can be
repaired with the tire repair kit, in
particular cuts or perforations larger
than

approximately 0.16 in (4 mm) or away
from the tire’s tread. The manufacturer
is not liable for damage sustained
through improper use of the tire repair
kit. G
WARNING
Follow recommended tire inflation
pressures.
Do not underinflate tires. Underinflated
tires wear excessively and/or unevenly,
adversely affect handling and fuel
economy, and are more likely to fail from
being overheated.
Do not overinflate tires. Overinflated
tires can adversely affect handling and
ride comfort, wear unevenly, increase
stopping distance, and result in sudden
deflation (blowout) because they are more
likely to become punctured or damaged by
road debris, potholes etc.
Do not overload the tires by exceeding the
specified load limit as indicated on the
Tire and Loading Information placard on
the

driver’s door B‑pillar. Overloading the
tires can overheat them, possibly causing
a blowout. Overloading the tires can also
result in handling or steering problems, or
brake failure.
X Drive to the nearest authorized smart
center, to have the damaged tire
replaced.
X Contact an authorized smart center as
soon as possible to obtain a new filler
hose and a new tire sealant container.
X Bring used tire sealant materials to an
authorized smart center for proper
disposal.
X Replace your tire sealant container
every 4 years. Replacement containers
are available at any authorized smart
center. G
WARNING
After changing a tire, contact a smart
center to make sure the bolts holding the
wheel to the car are tight enough.
Otherwise, the wheels could come off. Each
bolt should be tightened to a torque of
81 lb‑ft (110 Nm). Flat tire
193
>> Practical hints. Z

to come off. This could cause an accident.
Be sure to use the correct wheel bolts.
G
WARNING
Only use genuine smart wheel bolts. Other
wheel bolts may come loose.
Do not tighten the wheel bolts when the
vehicle is raised. Otherwise the vehicle
could fall off the jack.
X Clean contact surfaces of wheel and wheel
hub.
! To avoid paint damage, place wheel flat
against hub and hold it there while
installing first wheel bolt. X
Guide the wheel onto the wheel hub and
push it on.
X Insert two wheel bolts and tighten them
slightly.
X Vehicles with wheel trim cap on steel
rim: Attach the wheel trim cap so that it
is held by the two wheel bolts.
X Install last wheel bolt and tighten it
slightly.
X Lower the vehicle until the vehicle is
resting fully on its own weight.
X Remove the jack.
X Tighten the wheel bolts. Observe a
tightening torque of 80 lb-ft (110 Nm)

.G
WARNING
Have the tightening torque checked after
changing a wheel. The wheels could come loose if they are not tightened to a torque
of 80 lb-ft (110 Nm).
Steel rim with wheel cover
X
Vehicles with wheel cover on steel rim:
Position wheel cover aperture : so
valve ; fits through.
X Push the wheel cover evenly onto the
wheel rim with both hands.
X Check that the wheel cover is fixed
securely to the wheel rim.
i The Tire Pressure Monitoring System
(TPMS)*

only functions on wheels that are
equipped with the proper electronic
sensors (Y page 127). Battery
About the battery
Your vehicle’s battery is located in the
passenger footwell below the footrest
(Y page 198).
The battery should always be sufficiently
charged in order to achieve its rated
service

life. Refer to Maintenance Booklet
for battery maintenance intervals.
If you use your vehicle mostly for short-
distance trips, you will need to have the
battery charge checked more frequently.
When replacing the battery, always use
batteries approved by smart.
Battery: 12 V and 42 Ah
If you do not intend to operate your vehicle
for an extended period of time, consult an 196
Battery
>> Practical hints.
* optional

Rims and tires
Notes
! Only use tires which have been tested
and
approved by smart. Tires approved by
smart are developed to provide best
possible performance in conjunction
with the driving safety systems on your
vehicle such as the ABS or the ESP ®
.
Using tires other than those approved by
smart may result in damage that is not
covered by the smart Limited Warranty.
! Using tires other than those approved
by smart can have detrimental effects,
such as
R poor handling characteristics
R increased noise
R increased fuel consumption
Moreover, tires and rims not approved by
smart may, under load, exhibit
dimensional variations and different
tire deformation characteristics that
could cause them to come into contact
with the vehicle body or axle parts.
Damage to the tires or the vehicle may be
the result.
i Further information on tires and rims
is available at any authorized smart
center. A placard with the recommended
tire inflation pressure is located on the
driver’s door B‑pillar.
The tire inflation pressure should be
checked regularly and should only be
adjusted on cold tires. Follow tire
manufacturer’s maintenance
recommendation included with vehicle. Mobility
Your
vehicle is equipped with a tire repair
kit (Y page 186). In case of a flat tire, it
enables you to drive to the nearest
authorized smart center on the sealed tire. If the tire is damaged too severely for the
tire sealant to provide a reliable tire
repair:
X
Contact the nearest authorized smart
center.
or
X Call Roadside Assistance. Rims and tires
217
>> Technical data. Z