2012 SMART FORTWO COUPE wheel bolts

The brake fluid level is correct when it
is between the minimum mark and the
maximum mark.
R
If the brake fluid level has fallen
slightly below the minimum mark,
drive to an authorized smart center.
R If the brake fluid level has fallen
significantly below the minimum
mark, call Roadside Assistance or an
authorized smart center.
X Remount the service flap and close it
(Y page 120). Tires and wheels
Safety notes
Contact an authorized smart center for
information on tested and recommended
rims and tires for summer and winter
operation. They can also offer advice
concerning tire service and purchase. G
WARNING
Replace rims or tires with the same
designation, manufacturer and type as
shown on the original part. For further
information contact an authorized smart
center.
If incorrectly sized rims and tires
are mounted, the wheel brakes or
suspension components can be damaged.
Also, the operating clearance of the wheels
and the tires may no longer be correct. G
WARNING
Worn, old tires can cause accidents. If the
tire
tread is worn to minimum tread depth,
or if the tires have sustained damage,
replace them.
When replacing rims, only use genuine
smart wheel bolts specified for the
particular rim type. Failure to do so can
result in the bolts loosening and possibly
an accident.
Retreaded tires are not tested or
recommended by smart, since previous damage cannot always be recognized on
retreads. The operating safety of the
vehicle cannot be assured when such tires
are used.
G
WARNING
If you feel a sudden significant vibration
or ride disturbance, or you suspect that
possible damage to your vehicle has
occurred, you should turn on the hazard
warning flashers, carefully slow down, and
drive

with caution to an area which is a safe
distance from the road.
Inspect the tires and the vehicle underbody
for possible damage. If the vehicle or tires
appear unsafe, have the vehicle towed to the
nearest authorized smart center or tire
dealer for repairs. G
WARNING
Do not drive with a flat tire. A flat tire
affects the ability to steer or brake the
vehicle. You could 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.
Modifications to the brake system and
wheels and the use of brake dust rings are
not permissible. Important guidelines
R Only

use sets of tires and rims of the same
type and make.
R Tires must be of the correct size for the
rim.
R Break in new tires for approximately
60 miles (100 km) at moderate speeds.
R Regularly check the tires and rims for
damage. Dented or bent rims can cause
tire pressure loss and damage to the tire
beads.124
Tires and wheels
>> Operation.

The traction grades, from highest to
lowest, are AA, A, B, and C. Those grades
represent the tire’s ability to stop on wet
pavement as measured under controlled
conditions on specified government test
surfaces of asphalt and concrete. A tire
marked C may have poor traction
performance.
Temperature
G
WARNING
The temperature grade for this tire is
established for a tire that is properly
inflated and not overloaded. Excessive
speed, underinflation, or excessive
loading, either separately or in
combination, can cause excessive heat
build-up and possible tire failure.
The
temperature grades are A (the highest),
B, and C, representing the tire’s resistance
to the generation of heat and its ability to
dissipate heat when tested under
controlled conditions on a specified
indoor laboratory test wheel. Sustained
high temperature can cause the material of
the tire to degenerate and reduce tire life,
and excessive temperature can lead to
sudden tire failure. The grade C
corresponds to a level of performance
which all passenger car tires must meet
under the Federal Motor Vehicle Safety
Standard No. 109. Grades B and A represent
higher levels of performance on the
laboratory test wheel than the minimum
required by law. Rotating tires
G
WARNING
Do not rotate front and rear wheels as they
have different dimensions, e.g. rim size,
wheel offset etc. Otherwise, the handling
can be affected and you could endanger
yourself and others. Thoroughly clean the mounting face of the
wheels

and brake discs, i.e. the inner side
of the wheels/tires each time the wheels/
tires are changed. Check for and ensure
proper tire inflation pressure. G
WARNING
Have the tightening torque checked after
changing a wheel. Wheels could become
loose if not tightened with a torque of
81 lb‑ft (110 Nm).
Only use genuine smart wheel bolts
specified for your vehicle’s rims.
For

information on wheel change, see “Flat
tire” (Y page 186). Tire labeling
Besides tire name (sales designation) and
manufacturer name, a number of markings
can be found on a tire.
Following are some explanations for the
markings on your vehicle’s tires: :
Uniform Quality Grading Standards
(Y page 134)
; DOT, Tire Identification Number (TIN)
(Y page 138)
= Maximum tire load (Y page 132)
? Maximum tire inflation pressure
(Y page 129) Tires and wheels
135
>> Operation. Z

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

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

Steel rim with wheel cover
X
Vehicles with wheel cover on steel rim:
Pull the wheel cover off of the rim.
If necessary, use a suitable tool to pry
the wheel cover off.
X On wheel to be changed, loosen but do not
yet remove the wheel bolts
(approximately one full turn with wheel
wrench). Steel rim with wheel trim cap
X
Vehicles with wheel trim cap on steel
rim: On wheel to be changed, loosen but
do not yet remove the wheel bolts
(approximately one full turn with wheel
wrench).
X Take the wheel trim cap off. X
Position jack ; under take-up
bracket : so that it is always vertical
as
seen from the side, even if the vehicle
is parked on an incline.
The take-up brackets are identified by
the embossed recesses in the area of the
door sills.
! Only position the jack on the
designated

take-up brackets. Otherwise,
the vehicle could be damaged.
X Jack up the vehicle until the wheel is a
maximum

of 1.2 in (3 cm) from the ground.
X Unscrew and remove the wheel bolts.
! Do
not place wheel bolts in sand or dirt.
This could result in damage to the wheel
bolts and wheel hub threads.
X Remove the wheel. Mounting the wheel
G
WARNING
Always replace wheel bolts that are
damaged or rusted.
Never apply oil or grease to wheel bolts.
Damaged wheel hub threads should be
repaired immediately. Do not continue to
drive under these circumstances! Contact
an

authorized smart center or call Roadside
Assistance.
Incorrect wheel bolts or improperly
tightened wheel bolts can cause the wheel Wheel change
195
>> 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