2016 SMART FORTWO inflation pressure

GWARNING
In the following situations, the tire seal-
ant is unable to provide sufficient break-
down assistance, as it is unable to seal the
tire properly:
Rthere are cuts or punctures in the tire
larger than those mentioned above.
Rthe wheel rim is damaged.
Ryou 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 quali-
fied specialist workshop.
GWARNING
The tire sealant is harmful and causes irri-
tation. 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 seal-
ant, observe the following:
RRinse off the tire sealant from your skin
immediately with water.
RIf the tire sealant comes into contact
with your eyes, immediately rinse them
thoroughly with clean water.
RIf tire sealant is swallowed, immediately
rinse your mouth out thoroughly and
drink plenty of water. Do not induce vom-
iting, and seek medical attention imme-
diately.
RImmediately change out of clothing
which has come into contact with tire
sealant.
RIf an allergic reaction occurs, seek med-
ical attention immediately.
!Do not operate the tire inflation com-
pressor for longer than 15 minutes at a time
without a break. It may otherwise overheat.
The tire inflation compressor can be oper-
ated again once it has cooled down. Comply with the manufacturer’s safety
instructions on the sticker on the tire infla-
tion compressor.
Using the TIREFIT kit
XDo not remove any foreign objects which
have penetrated the tire, e.g. screws or
nails.
XRemove the tire sealant bottle and the tire
inflation compressor from the front-
passenger footwell (
Ypage 161).
XAffix the 50 mph (80 km/h) maximum speed
sticker to the instrument cluster within the
driver's field of vision.
XUnwind plug
0043with the cable from the tire
inflation compressor 0044.
XRemove hose0083from the bottom section of
tire inflation compressor housing 0044.
XRemove cap on tire sealant bottle0085and
connect hose 0083.
XRemove the cap from valve 006Don the faulty
tire.
XRemove cap on filler hose 0087and screw
filler hose 0087onto the valve.
XInsert connector 0043into the 12 V socket in
your vehicle (Ypage 147).
162Flat tire
>> Breakdown assistance.

XTurn the key to position1in the ignition
lock (Ypage 87).
XPress on/off switch 0084on tire inflation
compressor 0044toI.
The tire inflation compressor is switched
on. The tire is inflated.
iFirst, tire sealant is pumped into the
tire. The pressure can briefly rise to
approximately 600 kPa (6.0 bar/86 psi).
Do not switch off the tire inflation com-
pressor during this phase.
XLet the tire inflation compressor run for a
maximum of 15 minutes. The tire should then
have attained a pressure of at least 180 kPa
(1.8 bar/26 psi).
If a tire pressure of 180 kPa (1.8 bar/26 psi) is
achieved after a maximum of 15 minutes, see
"Tire pressure is achieved" (
Ypage 163).
If a tire pressure of 180 kPa (1.8 bar/26 psi)
has not been achieved after a maximum of
15 minutes, see "Tire pressure is not ach-
ieved" (
Ypage 163).
iIf tire sealant leaks out, allow it to dry. It
can then be removed like a layer of film.
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 180 kPa (1.8 bar/26 psi)
has not been achieved after a maximum of
10 minutes:
XSwitch off the tire inflation compressor.
XUnscrew the filler hose from the valve of
the faulty tire.
XVery slowly drive forwards or reverse
approximately 30 ft (10 m).
XPump up the tire again.
After a maximum of 10 minutes, the tire
pressure must be at least 180 kPa (1.8 bar/
26 psi).
GWARNING
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 characteristics. There is a
risk of accident.
Do not continue driving. Contact a quali-
fied specialist workshop.
Tire pressure reached
GWARNING
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 speed for a tire sealed with tire
sealant is 50 mph (80 km/h). The 50 mph
(80 km/h) maximum speed sticker must be
affixed to the instrument cluster within the
driver's field of vision.
!After use, excess tire sealant may run out
of the filler hose. This could cause stains.
Therefore, place the filler hose in the
plastic bag that contained the TIREFIT kit.
HEnvironmental note
Have the used tire sealant bottle disposed
of professionally, e.g. at a qualified spe-
cialist workshop.
If a tire pressure of 180 kPa (1.8 bar/26 psi)
has been achieved after 10 minutes:
XSwitch off the tire inflation compressor.
XUnscrew the filler hose from the valve of
the faulty tire.
XStow the tire sealant bottle and the tire
inflation compressor.
XPull away immediately.
XStop after driving for approximately
2 miles (3 km) 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).
Flat tire163
>> Breakdown assistance.
Z

GWARNING
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 brakingand driving characteristics. There is a
risk of accident.
Do not continue driving. Contact a quali-
fied specialist workshop.
XCorrect the tire pressure if it is still at
least 130 kPa (1.3 bar/19 psi). For values, see
the tire and loading information table on
the driver's side B-pillar.
XTo increase the tire pressure: switch on the
tire inflation compressor.
XTo reduce the tire pressure: depress pres-
sure release button 0043next to pressure
gauge 0044.
XIf the tire pressure is correct, unscrew the
filler hose from the valve of the sealed
tire.
XScrew the valve cap onto the valve of the
sealed tire.
XDrive to the nearest qualified specialist
workshop and have the tire changed there.
XHave the tire sealant bottle and the filler
hose replaced as soon as possible at a
qualified specialist workshop.
XHave the tire sealant bottle replaced every
four years at a qualified specialist work-
shop.
Battery (vehicle)
Important safety notes
Special tools and expert knowledge are
required when working on the battery, e.g.
removal and installing. You should therefore
have all work involving the battery carried
out at a qualified specialist workshop.
GWARNING
Work carried out incorrectly on the battery
can lead, for example, to a short circuit and
thus damage the vehicle electronics. This
can lead to function restrictions applying
to safety-relevant systems, e.g the lighting system, the ABS (anti-lock braking system)
or the ESP
®(Electronic Stability Program).
The operating safety of your vehicle may be restricted.
You could lose control of the vehicle, for
example:
Rwhen braking
Rin the event of abrupt steering maneuvers
and/or when the vehicle's speed is not
adapted to the road conditions
There is a risk of an accident.
In the event of a short circuit or a similar
incident, contact a qualified specialist
workshop immediately. Do not drive any
further. You should have all work involving
the battery carried out at a qualified spe-
cialist workshop.
Further information about ABS (
Ypage 47) and
esp®(Ypage 49).
GWARNING
Electrostatic build-up can lead to the cre- ation of sparks, which could ignite the
highly explosive gases of a battery. There
is a risk of an explosion.
Before handling the battery, touch the
vehicle body to remove any existing elec-
trostatic build-up.
The highly flammable gas mixture forms when charging the battery as well as when jump-
starting.
164Battery (vehicle)
>> Breakdown assistance.

Regular checking of wheels and tires
GWARNING
Damaged tires can cause tire inflation
pressure loss. As a result, you could lose
control of your vehicle. There is a risk of
accident.
Check the tires regularly for signs of dam- age and replace any damaged tires imme-
diately.
Regularly check the wheels and tires of your
vehicle for damage, at least once a month, as
well as after driving on rough roads. Damaged
wheels can cause a loss of tire pressure. Pay
particular attention to damage such as:
Rcuts in the tires
Rpunctures in the tires
Rtears in the tires
Rbulges on tires
Rdeformation or severe corrosion on wheels
Regularly check the tire tread depth and the
condition of the tread across the whole width
of the tire (
Ypage 178). If necessary, turn the
front wheels to full lock in order to inspect
the inner side of the tire surface.
All wheels must have a valve cap to protect the
valve against dirt and moisture. Do not fit
anything onto the valve other than the stand-
ard valve cap or other valve caps approved for
your vehicle by smart. Do not use any other
valve caps or systems, e.g. tire pressure mon-
itoring systems.
Regularly check the pressure of all the tires
particularly prior to long trips. Adjust the
tire pressure as necessary (
Ypage 180).
The service life of tires depends, among
other things, on the following factors:
RDriving style
RTire pressure
RDistance covered
Notes on tire profile
GWARNING
Insufficient tire tread will reduce tire
traction. The tire is no longer able to dis-
sipate water. This means that on wet road
surfaces, the risk of hydroplaning increa-
ses, in particular where speed is not adap- ted to suit the driving conditions. There is
a risk of accident.
If the tire pressure is too high or too low,
tires may exhibit different levels of wear
at different locations on the tire tread.
Thus, you should regularly check the tread
depth and the condition of the tread across
the entire width of all tires.
Minimum tire tread depth for:
RSummer tires: 00CEin (3 mm)
RM+S tires: 00CFin (4 mm)
For safety reasons, replace the tires before
the legally prescribed limit for the mini-
mum tire tread depth is reached.
Indicator 0043shows which position the bar
marking (arrow) for tread wear is integrated
into the tire tread.
Treadwear indicators (TWI) are required by
law. Six indicators are positioned on the tire
tread. They are visible once a tread depth of
approximately 00CDin (1.6 mm) has been
reached. If this is the case, the tire is so worn
that it must be replaced.
Selecting, mounting and replacing
tires
ROnly mount tires and wheels of the same
type and make.
Exception: it is permissible to fit a dif-
ferent type or make in the event of a flat
tire.
ROnly mount tires of the correct size onto the
wheels.
178Operation
>> Wheels and tires.

RAfter fitting new tires, run them in at mod-
erate speeds for the first 60 miles (100 km),
as they only reach their full performance
after this distance.
RDo not drive with tires which have too little
tread depth, as this significantly reduces
the traction on wet roads (hydroplaning).
RReplace the tires after six years at the lat-
est, regardless of wear.
Winter operation
General notes
Have your vehicle winterproofed at a quali-
fied specialist workshop at the onset of win-
ter.
Observe the notes in the "Changing a wheel"
section (
Ypage 196).
Driving with summer tires
At temperatures below 45 ‡(+7 †), summer
tires lose elasticity and therefore traction
and braking power. Change the tires on your
vehicle to M+S tires. Using summer tires at
very cold temperatures could cause tears to
form, thereby damaging the tires perma-
nently. smart cannot accept responsibility
for this type of damage.
GWARNING
Damaged tires can cause tire inflation
pressure loss. As a result, you could lose
control of your vehicle. There is a risk of
accident.
Check the tires regularly for signs of dam- age and replace any damaged tires imme-
diately.
M+S tires
GWARNING
M+S tires with a tire tread depth of less
than 00CFin (4 mm) are not suitable for use in
winter and do not provide sufficient trac-
tion. There is a risk of an accident.
M+S tires with a tread depth of less than 00CF
in (4 mm) must be replaced immediately.
At temperatures below 45 ‡(+7 †) use winter
tires marked with M+S.
Only winter tires bearing the 004Dsnowflake
symbol in addition to the M+S marking pro-
vide the best possible grip in wintry road
conditions. Only these tires will allow driv-
ing safety systems such as ABS and ESP
®to
function optimally in winter. These tires
have been developed specifically for driving
in snow.
Use M+S tires of the same make and tread on
all wheels to maintain safe handling charac- teristics.
Always observe the maximum permissible
speed specified for the M+S tires you have
mounted. Therefore, only use tire types and
sizes approved for smart. Observe the tire
load rating and speed rating required for
smart.
Tires with a specified direction of rotation
have additional benefits, e.g. if there is a
risk of aquaplaning. These advantages can
only be gained if the tires are fitted corre-
sponding to the direction of rotation.
An arrow on the sidewall of the tire indicates
its correct direction of rotation.
When you have mounted the M+S tires:
XCheck the tire pressures (Ypage 180).
XVehicles for USA: restart the tire pressure
monitor (Ypage 185).
Snow chains
GWARNING
If snow chains are installed to the front
wheels, they may drag against the vehicle
body or chassis components. This could
cause damage to the vehicle or the tires.
There is a risk of an accident.
To avoid hazardous situations:
Rnever install snow chains to the front
wheels
Ralways install snow chains in pairs to the rear wheels.
Winter operation179
>> Wheels and tires.
Z

!Vehicles with steel wheels:if you mount
snow chains on steel wheels, you may dam-
age the hub caps. Remove the hub caps from
the relevant wheels before mounting the
snow chains.
smart recommends that you only use snow
chains that have been specially approved for
smart. For more information, please contact
the smart center or a qualified specialist
workshop.
Bear in mind that snow chains are designed
for a certain wheel size. If you mount tires
that are larger or smaller than the original
tires, you will require new snow chains of the
correct size.
If you intend to mount snow chains, please
bear the following points in mind:
RSnow chains may not be mounted on all
wheel/tire combinations. Permissible
wheel-tire combinations (
Ypage 200).
ROnly use snow chains when driving on roads
completely covered by snow. Remove the
snow chains as soon as possible when you
come to a road that is not snow-covered.
RLocal regulations may restrict the use of
snow chains. Observe the appropriate reg-
ulations if you wish to mount snow chains.
Rdo not exceed the maximum permissible
speed of 30 mph (50 km/h).
Tire pressure
Tire pressure specifications
GWARNING
Underinflated or overinflated tires pose
the following risks:
Rthe tires may burst, especially as the
load and vehicle speed increase.
Rthe tires may wear excessively and/or
unevenly, which may greatly impair tire
traction.
Rthe driving characteristics, as well as
steering and braking, may be greatly
impaired.
There is a risk of an accident.
Follow recommended tire inflation pres-
sures and check the pressure of all the tires including the spare wheel:
Rmonthly, at least
Rif the load changes
Rbefore beginning a long journey
Runder different operating conditions,
e.g. off-road driving
If necessary, correct the tire pressure.
The specifications on the sample Tire and
Loading Information placard and tire pres-
sure tables are examples. Tire pressure spec-
ifications are vehicle-specific and may
deviate from the data shown here. The tire
pressure specifications that are valid for
your vehicle can be found on the Tire and
Loading Information placard and tire pres-
sure table on the vehicle.
The recommended tire pressures for the tires
mounted at the factory can be found on the
labels described here.
Further information on tire pressures can be
obtained at a qualified specialist workshop.
0043Recommended tire pressures
The Tire and Loading Information placard is
on the B-pillar on the driver's side
(
Ypage 185).
The Tire and Loading Information placard
contains the recommended tire pressures for
cold tires. The recommended tire pressures
are valid for the maximum permissible load
and up to the maximum permissible vehicle
speed.
The tire pressure table is on the inside of the
fuel filler flap.
180Tire pressure
>> Wheels and tires.

Use a suitable pressure gauge to check the
tire pressure. The outer appearance of a tire
does not permit any reliable conclusion
about the tire pressure. On vehicles equip-
ped with the electronic tire pressure moni-
tor, the tire pressure can be checked in the
on-board computer.
The tire temperature and pressure increase
when the vehicle is in motion. This is
dependent on the driving speed and the load.
Therefore, you should only correct tire pres-
sures when the tires are cold.
The tires are cold:
Rif the vehicle has been parked with the
tires out of direct sunlight for at least
three hours and
Rif the vehicle has not been driven further
than 1 mile (1.6 km)
The tire temperature changes depending on
the outside temperature, the vehicle speed
and the tire load. If the tire temperature
changes by 18 ‡(10 †), the tire pressure
changes by approximately 10 kPa (0.1 bar/
1.5 psi). Take this into account when checking
the pressure of warm tires. Only correct the
tire pressure if it is too low for the current
operating conditions. If you check the tire
pressure when the tires are warm, the result-
ing value will be higher than if the tires were
cold. This is normal. Do not reduce the tire
pressure to the value specified for cold
tires. The tire pressure would otherwise be
too low.
Observe the recommended tire pressures for
cold tires:
Ron the Tire and Loading Information plac-
ard on the B-pillar on the driver's side
Rin the tire pressure table in the fuel filler
flap (Ypage 98).
Underinflated or overinflated tires
GWARNING
Tires with pressure that is too low can
overheat and burst as a consequence. In
addition, they also suffer from excessive
and/or irregular wear, which can severely
impair the braking properties and the
driving characteristics. There is a risk of an accident.
Avoid tire pressures that are too low in all
the tires, including the spare wheel.
Underinflated tires
Underinflated tires may:
Roverheat, leading to tire defects
Radversely affect handling
Rwear excessively and/or unevenly
Rhave an adverse effect on fuel consumption
GWARNING
Tires with excessively high pressure can
burst because they are damaged more easily by road debris, potholes etc. In addition,
they also suffer from irregular wear, which
can severely impair the braking properties
and the driving characteristics. There is a
risk of an accident.
Avoid tire pressures that are too high in all
the tires, including the spare wheel.
Overinflated tires
Overinflated tires may:
Rincrease the braking distance
Radversely affect handling
Rwear excessively and/or unevenly
Rhave an adverse effect on ride comfort
Rbe more susceptible to damage
Maximum tire pressures
0043Example: maximum permissible tire
pressure
Never exceed the maximum permissible tire
inflation pressure. Always observe the rec-
ommended tire pressure for your vehicle when
adjusting the tire pressure (
Ypage 180).
182Tire pressure
>> Wheels and tires.

iThe actual values for tires are vehicle-
specific and may deviate from the values in
the illustration.
Checking the tire pressures
Important safety notes
Observe the notes on tire pressure
(Ypage 180).
Information on air pressure for the tires on
your vehicle can be found:
Ron the vehicle's Tire and Loading Informa- tion placard on the B-pillar
Rin the tire pressure table in the fuel filler
flap (Ypage 98)
Rin the "Tire pressure" section
Checking tire pressures manually
To determine and set the correct tire pres-
sure, proceed as follows:
XRemove the valve cap of the tire that is to bechecked.
XPress the tire pressure gauge securely onto
the valve.
XRead the tire pressure and compare it with
the recommended value on the Tire and
Loading Information placard (
Ypage 180).
XIf the tire pressure is too low increase the
tire pressure to the recommended value.
XIf the tire pressure is too high, release
air. To do this, press down the metal pin in
the valve using the tip of a pen, for exam-
ple. Then check the tire pressure again
using the tire pressure checker.
XScrew the valve cap onto the valve.
XRepeat these steps for the other tires.
Tire pressure monitor
General notes
iThis function is only available in the
USA.
If a tire pressure monitor is installed, the
vehicle's wheels have sensors that monitor
the tire pressures in all four tires. The tire
pressure monitor warns you if the pressure
drops in one or more of the tires. The tire pressure monitor only functions if the cor-
responding sensors are fitted to all wheels.
Important safety notes
GWARNING
Each tire, including the spare (if provi-
ded), should be checked at least once every
two weeks when cold and inflated to the
pressure recommended by the vehicle man- ufacturer on the Tire and Loading Informa-
tion placard on the driver's door B-pillar
or the tire pressure label on the inside of
the fuel filler flap. If your vehicle has
tires of a different size than the size indi-
cated on the Tire and Loading Information
placard or, if available, the tire pressure
label, you should determine the proper tire
pressure for those tires.
As an added safety feature, your vehicle has been equipped with a tire pressure moni-
toring system (TPMS) that illuminates a low
tire pressure telltale when one or more of
your tires are significantly underinflated.
Accordingly, when the low tire pressure
telltale lights up, you should stop and
check your tires as soon as possible, and
inflate them to the proper pressure. Driv-
ing on a significantly underinflated tire
causes the tire to overheat and can lead to
tire failure.
Underinflation also reduces fuel effi-
ciency and tire tread life, and may affect
the vehicle's handling and stopping abil-
ity. Please note that the TPMS is not a sub-
stitute for proper tire maintenance, and it
is the driver's responsibility to maintain
correct tire pressure, even if underinfla-
tion has not reached the level to trigger
illumination of the TPMS low tire pressure
telltale.
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate
when the system is not operating properly.
The TPMS malfunction indicator is com-
bined with the low tire pressure telltale.
When the system detects a malfunction, the
Tire pressure183
>> Wheels and tires.
Z