2011 SMART FORTWO COUPE inflation pressure

Bar
Another metric unit for air pressure. There
are 14.5038 pounds per square inch (psi) to
1 bar; there are 100 kilopascals (kPa) to
1 bar.
Bead
The tire bead contains steel wires wrapped
by steel cords that hold the tire onto the
rim.
Cold tire inflation pressure
Tire inflation pressure when your vehicle
has been sitting for at least 3 hours or
driven no more than 1 mile (1.6 km).
Curb weight
The weight of a motor vehicle with standard
equipment including the maximum
capacity of fuel, oil, and coolant, and, if
so equipped, air conditioning and
additional optional equipment, but
without passengers and cargo.
DOT (Department of Transportation)
A tire branding symbol which denotes the
tire meets requirements of the U.S.
Department of Transportation.
GAWR (Gross Axle Weight Rating)
The GAWR is the maximum permissible axle
weight. The gross vehicle weight on each
axle must never exceed the GAWR for the
front and rear axle indicated on the
certification label located on the driver’s
door B‑pillar.
GVW (Gross Vehicle Weight)
The GVW comprises the weight of the
vehicle including fuel, tools, installed
accessories, passengers and cargo. The
GVW must never exceed the GVWR indicated
on the certification label located on the
driver’s door B‑pillar.
GVWR (Gross Vehicle Weight Rating)
This is the maximum permissible vehicle
weight of the fully loaded vehicle (weight
of the vehicle including all options,
passengers, fuel, and cargo. It is indicated
on certification label located on the
driver’s door B‑pillar.
Kilopascal (kPa)
The metric unit for air pressure. There are
6.9 kPa to 1 psi; another metric unit for air
pressure is bars. There are
100 kilopascals (kPa) to 1 bar.
Maximum load rating
The maximum load in kilograms and pounds
that can be carried by the tire.
Maximum loaded vehicle weight
The sum of curb weight, accessory weight,
total load limit and production options
weight.
Maximum permissible tire inflation
pressure
This number is the greatest amount of air
pressure that should ever be put in the tire.
Normal occupant weight
The number of occupants the vehicle is
designed to seat, multiplied by
68 kilograms (150 lbs).
Occupant distribution
The distribution of occupants in a vehicle
at their designated seating positions.
Production options weight
The combined weight of those installed
regular production options weighing over
5 lbs (2.3 kilograms) in excess of those
standard items which they replace, not
previously considered in curb weight or
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accessory weight, including heavy duty
brakes, ride levelers, roof rack, heavy duty
battery, and special trim.
PSI (Pounds per square inch)
A standard unit of measure for air
pressure.
Recommended tire inflation pressure
The recommended tire inflation pressure
for normal driving conditions is listed on
the Tire and Loading Information placard
located on driver’s door B‑pillar and
provides best handling, tread life and
riding comfort.
Rim
A metal support for a tire or a tire and tube
assembly upon which the tire beads are
seated.
Sidewall
The portion of a tire between the tread and
the bead.
TIN (Tire Identification Number)
Unique identifier which facilitates
efforts by tire manufacturers to notify
purchasers in recall situations or other
safety matters concerning tires and gives
purchasers the means to easily identify
such tires. The TIN is comprised of
“Manufacturer’s identification mark”,
“Tire size”, “Tire type code” and “Date of
manufacture”.
Tire load rating
Numerical code associated with the
maximum load a tire can support.
Tire ply composition and material used
This indicates the number of plies or the
number of layers of rubber-coated fabric
in the tire tread and sidewall. Tire
manufacturers also must indicate the ply
materials in the tire and sidewall, which
include steel, nylon, polyester, and others.
Tire speed rating
Part of tire designation; indicates the
speed range for which a tire is approved.
Total load limit
Rated cargo and luggage load plus
68 kilograms (150 lbs) times the vehicle’s
designated seating capacity.
Traction
Force exerted by the vehicle on the road via
the tires. The amount of grip provided.
Tread
The portion of a tire that comes into
contact with the road.
Treadwear indicators
Narrow bands, sometimes called “wear
bars” that show across the tread of a tire
when only 1
/ 16 in (1.6 mm) of tread remains.
Uniform Tire Quality Grading Standards
A tire information system that provides
consumers with ratings for a tire’s
traction, temperature and treadwear.
Ratings are determined by tire
manufacturers using U.S. government
testing procedures. The ratings are molded
into the sidewall of the tire.
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parking. The heat generated serves to dry
the brakes.GWarning!
Make sure not to endanger any other road
users when carrying out these braking
maneuvers.
Limited braking effect on salted roads
Remember that the effect of the brakes can
be limited on salted road surfaces. A layer
of salt can form on brake discs and brake
pads, considerably reducing the friction
between the brake disc and the brake pad.
The effect is most noticeable after long
trips without braking, e.g. on the highway,
and after the vehicle has been parked for
several hours.
GWarning!
The accumulation of salt on brake discs and
brake pads reduces braking effectiveness
and increases the distance necessary to
come to a complete standstill. This could
potentially cause an accident and/or
personal injury.
To avoid this risk, you should
R brake carefully every now and then on
salted roads in order to remove any layer
of salt on the brake disc and brake pad,
but do so without endangering any other
road users
R keep a good safe distance from the
vehicle in front and drive carefully
R press the brake carefully at the end of the
trip and again when beginning the next
trip in order to remove any salt residues
from the brake disc
New brake pads
Only install brake pads recommended by
smart.
GWarning!
If other than recommended brake pads are
installed, or other than recommended brake
fluid is used, the braking properties of the
vehicle can be degraded to an extent that
safe braking is substantially impaired.
This could result in an accident.GWarning!
New brake pads will not achieve their
optimal braking effect until after several
hundred miles (kilometers). This means
that you must compensate for the reduced
braking effect by pressing harder on the
brake pedal and adapt your driving style
accordingly. The same applies after brake
pads or brake discs have been changed.
Drive sensibly - save fuel
Fuel consumption, to a great extent,
depends on driving habits and operating
conditions.
To save fuel you should:
R Shift gears in a timely manner.
R Avoid frequent acceleration and
deceleration.
R Keep tires at the recommended inflation
pressures.
R Remove carriers* when not in use.
R Remove unnecessary loads.
R Allow engine to warm up under low load
use.
R Have all maintenance work performed at
the intervals specified in the
Maintenance Booklet and as required by
the Maintenance System. Contact an
authorized smart center.
Fuel consumption is also increased by
driving in cold weather, in stop-and-go
traffic, on short trips, and in hilly areas.
Catalytic converter
Your smart is equipped with monolithic-
type catalytic converter, an important
element in conjunction with the oxygen
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Specified tire inflation pressures must be
maintained. This applies particularly if
the tires are subject to high loads (e.g.
high speeds, heavy loads, high ambient
temperatures).GWarning!
Do not drive with a flat tire. A flat tire will
affect your ability to steer or brake and may
cause you to lose control of the vehicle.
Continued driving with a flat tire or
driving at high speed with a flat tire will
cause excessive heat build-up and possibly
a fire.
For more information, see “Tires and
wheels” ( Y page 126).
Hydroplaning
Depending on the depth of the water layer
on the road, hydroplaning may occur
resulting in a loss of control, even at low
speeds and with new tires. Reduce vehicle
speed, avoid track grooves in the road and
apply brakes cautiously when it is raining.
Tire traction
The safe speed on a wet, snow covered or icy
road is always lower than on a dry road.
You should pay particular attention to the
condition of the road whenever the outside
temperatures are close to the freezing
point.
GWarning!
If ice has formed on the road, tire traction
will be substantially reduced. Under such
weather conditions, drive, steer and brake
with extreme caution.
smart recommends winter tires
( Y page 145) with a minimum tread depth of
approximately 1
/ 6 in (4 mm) on all four
wheels for the winter season to ensure
normal balanced handling characteristics.
On packed snow, they can reduce your
stopping distance compared to summer
tires.
Stopping distance, however, is still
considerably greater than when the road is
not covered with snow or ice. Exercise
appropriate caution.
! Avoid spinning of a drive wheel for an
extended period when driving off on
slippery road surfaces. Otherwise, the
drivetrain could be damaged, which is
not covered by the smart Limited
Warranty.
Tire speed rating
Regardless of the tire speed rating, local
speed limits should be obeyed. Use prudent
driving speeds appropriate to prevailing
conditions.
GWarning!
Even when permitted by law, never operate
a vehicle at speeds greater than the
maximum speed rating of the tires.
Exceeding the maximum speed for which
tires are rated can lead to sudden tire
failure, causing loss of vehicle control and
possibly resulting in an accident and/or
personal injury and possible death, for you
and for others.
An electronic speed limiter prevents your
vehicle from exceeding a speed of 90 mph
(145 km/h).
The factory equipped tires on your vehicle
may have a tire speed rating above the
maximum speed permitted by the
electronic speed limiter.
Make sure your tires have the required tire
speed rating as specified for your vehicle
in the “Technical data section”
( Y page 217), for example when purchasing
new tires.
For information on how to identify the tire
speed rating on a tire’s sidewall, see “Tire
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Display messagesPossible causes/consequences and 0050 Solutions00B6
Reserve FuelThe fuel level has dropped below the reserve mark.XRefuel at the next gas station.00DC
Driver´s Door AjarThe driver’s door is open.XClose the driver’s door.00DD
Door AjarThe passenger door is open.XClose the passenger door.00DB
Tailgate OpenA tailgate or the rear soft top 17
is open.XClose the tailgates or the rear soft.Display messagesPossible causes/consequences and 0050 Solutions0077
Check Tire PressureThe tire inflation pressure in at least one tire is
significantly below the reference value.XCarefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers.XCheck and adjust tire inflation pressure as required
( Y page 128).XIf necessary, change the wheel ( Y page 193).GWarning!
Each tire should be checked monthly when cold and inflated to the inflation pressure
recommended by the vehicle manufacturer on the Tire and Loading Information placard. If
your vehicle has tires of a different size than the size indicated on the Tire and Loading
Information placard, you should determine the proper tire inflation pressure for those
tires.
As an added safety feature, your vehicle has been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire pressure telltale when one or more of your tires
is significantly underinflated.
Accordingly, when the low tire pressure telltale illuminates, you should stop and check your
tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly
underinflated tire causes the tire to overheat and can lead to tire failure.
Underinflation also reduces fuel efficiency and tire tread life, and may affect the vehicle’s
handling and stopping ability. Please note that the TPMS is not a substitute for proper tire
maintenance, and it is the driver’s responsibility to maintain correct tire pressure, even
if underinflation has not reached the level to trigger illumination of the TPMS low tire
pressure telltale.
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Tire Pressure Monitoring System (TPMS)* ProblemPossible causes/consequences and 0050 Solutions0077The
combination
low tire
pressure/TPMS
malfunction
telltale
illuminates
continuously.The TPMS detects a loss of pressure in at least one tire.XCarefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers. Observe the traffic
situation around you.XCheck and correct tire inflation pressure as required
( Y page 128).
If the tire inflation pressure in the respective tire(s) has
(have) been corrected, the combination low tire pressure/TPMS
malfunction telltale goes out after a few minutes of driving.
See also “Restarting the TPMS” ( Y page 131).
0077The
combination
low tire
pressure/TPMS
malfunction
telltale flashes
60 seconds and
then stays
illuminated.There is a malfunction in the TPMS.XHave the TPMS checked at an authorized smart center.
After the malfunction has been remedied the combination low
tire pressure/TPMS malfunction telltale goes out after a few
minutes of driving.
GWarning!
Each tire should be checked monthly when cold and inflated to the inflation pressure
recommended by the vehicle manufacturer on the Tire and Loading Information placard. If
your vehicle has tires of a different size than the size indicated on the Tire and Loading
Information placard, you should determine the proper tire inflation pressure for those
tires.
As an added safety feature, your vehicle has been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire pressure telltale when one or more of your tires
is significantly underinflated.
Accordingly, when the low tire pressure telltale illuminates, you should stop and check your
tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly
underinflated tire causes the tire to overheat and can lead to tire failure.
Underinflation also reduces fuel efficiency and tire tread life, and may affect the vehicle’s
handling and stopping ability. Please note that the TPMS is not a substitute for proper tire
maintenance, and it is the driver’s responsibility to maintain correct tire pressure, even
if underinflation 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 combined with the
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The tire repair kit enables you to drive on
the sealed tire to the nearest authorized
smart center.XYou should have the sealed tire replaced
at an authorized smart center.GWarning!
Take care not to allow the contents of the
tire sealant to come in contact with hair,
eyes or clothing. The tire sealant is
harmful if inhaled, swallowed or absorbed
through the skin - causes skin, eye and
respiratory irritation. Wear gloves while
using this product if they are available.
Any contact with eyes or skin should be
flushed immediately with plenty of water.
If clothing comes in contact with the tire
sealant, change clothing as soon as
possible.
In case of allergic reaction or rash, consult
a physician immediately.
Notes
R Small tire punctures, particularly those
in the tread, can be sealed with the tire
sealant.
R The tire sealant can be used in ambient
temperatures from ‑4 ¦ (‑20 ¥) to
104 ¦ (+40 ¥).
R Do not remove any foreign objects such as
nails or screws that have penetrated the
tire.
R Do not use the tire sealant if the tire has
been damaged by being driven when
insufficiently inflated (e.g. bumps,
cuts, cracks etc. on the tire).
R Allow escaped tire sealant to dry, then
peel it off.
R Immediately wash all painted surfaces
that came into contact with the tire
sealant using a damp cloth.
R Avoid skin and eye contact with the tire
sealant.
R Do not swallow the tire sealant.
RAllow the tire sealant that is inside the
damaged tire to dry and dispose of
together with the tire.
R Do not use the tire sealant after the
expiration date has elapsed (see top of
container).
Instead, have it replaced at an
authorized smart center.GWarning!
The tire sealant is a limited repair device.
The tire sealant cannot be used for cuts or
punctures larger than approximately
0.16 in (4 mm) and tire damage caused by
driving with extremely low tire inflation
pressure, or on a flat tire, or a damaged
wheel.
Do not drive the vehicle under such
circumstances.
If you are unsure of the condition of the tire
or have any question whatsoever about its
suitability for driving contact the nearest
smart center for assistance or call
Roadside Assistance.
GWarning!
Please review the instructions below for
using the tire repair kit. If you are not
confident that you can competently follow
the instructions for using this kit, do not
use the kit, but instead call for Roadside
Assistance.
GWarning!
Keep the tire sealant out of reach of
children. If swallowed, rinse mouth
immediately with plenty of water and drink
plenty of water.
Do not induce vomiting!
Consult a physician immediately.
Keep away from open flame, heat source or
sparks. Do not smoke.
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therefore keep the engine running — in
the open air — while inflating the tire.XPress I on electric air pump switch 006E.
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.
XLet the electric air pump inflate the tire
for a maximum of ten minutes.
Pressure gauge 0047 must display at least
180 kpa (1.8 bar, 26 psi).
! Do not operate the electric air pump
longer than ten minutes without
interruption. Otherwise it may overheat.
You may operate the electrical air pump
again after it has cooled off.
XIf a tire inflation pressure of at least
180 kpa (1.8 bar, 26 psi) is not attained,
turn off the electric air pump by
pressing 0 on electric air pump switch
006E .XUnscrew the end of filler hose 0088 from
tire valve 0072.XAfter 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.XScrew the end of filler hose 0088 onto tire
valve 0072.XInflate the tire again.GWarning!
If a tire inflation pressure of
180 kpa (1.8 bar, 26 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.
XAfter attaining a tire inflation pressure
of at least 180 kpa (1.8 bar, 26 psi) , press
0 on electric air pump switch 006E.
The electric air pump is switched off.XTurn the key in the starter switch to
position 0.XUnscrew the end of filler hose 0088 from
tire valve 0072.XPlug filler hose with the stopper.XTire sealant container 0070 remains
screwed onto flange 0071.XPlace the tire repair kit securely in the
vehicle.XDrive off immediately.
The tire sealant will distribute itself
evenly inside the tire.GWarning!
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.
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