2012 SMART FORTWO COUPE engine

X
Screw the end of filler hose ? onto tire
valve G.
X Insert electrical plug B 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 I on electric air pump switch C.
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.
Pressure gauge ; 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.
X If 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
C.
X Unscrew the end of filler hose ? from
tire valve G.
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 G.
X Inflate the tire again. G
WARNING
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.
X After attaining a tire inflation pressure
of

at least 180 kPa (1.8 bar, 26 psi), press
0 on electric air pump switch C.
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 G.
X Plug filler hose with the stopper.
X Tire sealant container E remains
screwed onto flange F. Flat tire
189
>> Practical hints. 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

Wheel change
Preparing the vehicle
X Park the vehicle on a hard, flat surface
when possible.
X Turn on the hazard warning flasher.
X Turn the steering wheel so that the front
wheels
are in a straight-ahead position.
X Engage the parking brake.
X Move the gear selector lever to park
position P.
X Turn off the engine.
X Have any passenger exit the vehicle at a
safe distance from the roadway. Removing the wheel
G
WARNING
When jacking up the vehicle, only use a
suitable jack. Observe the manufacturer’s
safety instructions.
The jack must be designed for jacking up
this vehicle at the jack take-up brackets
built into both sides of the vehicle.
The jack is intended only for lifting the
vehicle

briefly for wheel changes. It is not
suited for performing maintenance work
under the vehicle. To help avoid personal
injury, use the jack only to lift the vehicle
during a wheel change.
Never get beneath the vehicle while it is
supported by the jack. Keep hands and feet
away from the area under the lifted vehicle.
Always lower the vehicle onto sufficient
capacity jackstands before working under
the vehicle.
Always firmly engage the parking brake and
block the wheels with wheel chocks or other
sizeable objects before raising the
vehicle with the jack. Do not release the
parking brake while the vehicle is raised.
Make sure the ground on which the vehicle
is standing and where you place the jack is solid, level and not slippery. If necessary,
use

a large underlay. On slippery surfaces,
such as tiled floors, you should use a non-
slip underlay, for example a rubber mat.
Do not use wooden blocks or similar objects
to support the jack. Otherwise the jack may
not be able to achieve its load-bearing
capacity if it is not at its full height.
The jack must always be vertical when in
use. Always try to use the jack on level
surface. If you do not position the jack
correctly, the vehicle can fall off the jack
and seriously or fatally injure you or
others.
Never start the engine when the vehicle is
raised.
Also observe the notes on the jack.
X Make sure to have a suitable jack 18
,
wheel
wrench 18
and wheel chock 18
.
Contact an authorized smart center for
information on which jack and wheel
wrench are required.
X Prepare the vehicle as described
(Y page 194).
X Make sure the surface is level.
Prevent the vehicle from rolling away by
blocking
wheels with wheel chocks or other
sizeable objects:
X Place one wheel chock or other sizeable
object in front of and another wheel
chock or other sizeable object behind
the wheel that is diagonally opposite to
the wheel being changed.
18 Not included and not available as factory equipment.194
Wheel change
>> Practical hints.

authorized smart center about steps you
need to observe.
G
WARNING
Observe all safety instructions and
precautions when handling automotive
batteries. Risk of explosion.
Fire, open flames and
smoking are prohibited
when handling batteries.
Avoid creating sparks.
Battery acid is caustic.
Do not allow it to come
into contact with skin,
eyes or clothing.
Wear suitable protective
clothing, especially
gloves, apron and
faceguard.
Wear eye protection.
Rinse any acid spills
immediately with clear
water.
Contact a physician
if necessary. Keep children away.
Follow the instructions in
this Operator’s Manual.
Batteries contain materials that can harm
the
environment if disposed of improperly.
Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling. G
WARNING
Failure to follow these instructions can
result in severe injury or death. Observe all safety instructions and
precautions when handling automotive
batteries.
Never lean over batteries while
connecting, you might get injured.
Battery

fluid contains sulfuric acid. Do not
allow this fluid to come in contact with
eyes, skin or clothing. In case it does,
immediately flush affected area with water
and seek medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking, etc. G
WARNING
Do not place any metal objects on a battery.
You could otherwise cause a short circuit
and the battery’s highly flammable
chemicals could ignite.
Never

allow any metal object to contact both
battery terminals or the positive terminal
and the vehicle body at the same time. This
might short circuit the battery and ignite
the highly flammable and explosive
hydrogen gas generated by the battery,
causing serious personal injury. G
WARNING
Keep flames or sparks away from battery,
avoid improper connection of jumper
cables, smoking, etc.
R When disconnecting the battery, always
disconnect the negative terminal first,
followed by positive terminal.
R When connecting the battery, always
connect the positive terminal first,
followed by the negative terminal.
R Do not loosen or disconnect the battery
terminal clips while the engine is
running or the key is in the starter
switch.
! Never

loosen or detach battery terminal
clamps while the engine is running or the Battery
197
>> Practical hints. Z

key is in the starter switch. Otherwise
the alternator and other electronic
components could be severely damaged.
Have the battery checked regularly at an
authorized smart center.
Refer to Maintenance Booklet for
maintenance intervals or contact an
authorized smart center for further
information.
! Never invert the terminal connections! Disconnecting, removing, charging,
reinstalling and reconnecting the
battery
Disconnecting the battery i
If the battery is disconnected or
discharged
R the key will not turn in the starter
switch
R the automatic transmission will
remain in park position P
For more information see “Jump
starting” ( Y page 199).
X Engage the parking brake.
X Move the gear selector lever to park
position P.
X Turn off all electrical accessories.
X Turn off the engine.
X Open the passenger door.
X Move the passenger seat to the rear as far
as possible.
X Unscrew the carpet holder in the
passenger footwell (Y page 158).
X Lift the carpet. X
Unscrew fastening screw ;
counterclockwise.
X Pull footrest : sideways out of the
vehicle.
X Read and observe safety instructions and
precautions (Y page 196). !
Always disconnect the battery in the
order described below. Otherwise the
vehicle’s electronics can be damaged.
X Disconnect the battery negative lead
from negative terminal =.
Make sure the negative lead does not
come
into contact with the positive lead.
X Remove cover ? from the positive
terminal.
X Disconnect the battery positive lead.
Removing the battery X
Unscrew battery mount A.
X Remove the battery support and bracket.
X Pull out the ventilation hose from the
battery (depending on battery198
Battery
>> Practical hints.

immediately flush affected area with
water, and seek medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and very explosive.
Keep flames or sparks away from battery,
avoid improper connection of jumper
cables, smoking, etc.
Attempting to jump start a frozen battery
can result in it exploding, causing
personal injury.
Read all instructions before proceeding.
! Do not tow‑start vehicle. You could
otherwise seriously damage the
transmission
which is not covered by the
smart Limited Warranty.
! Avoid repeated and lengthy starting
attempts.
Do not attempt to start the engine using
a battery quick charge unit.
If the engine does not run after several
unsuccessful starting attempts, have it
checked at the nearest authorized smart
center.
Excessive unburned fuel generated by
repeated failed starting attempts may
damage the catalytic converter and may
present a fire risk.
Make sure the jumper cables do not have
loose or missing insulation.
Make sure the cable clamps do not touch
any other metal part while the other end
is still attached to a battery.
If the battery is discharged, the engine can
be started with jumper cables and the fully
charged battery of another vehicle or an
equivalent starter pack. Observe the
following:
R Access to the battery is not possible on
all vehicles. If you cannot access the
battery in your vehicle provide jump start power by an external battery or
starter pack.
R Jump starting should only be performed
when the engine and catalytic converter
are cold.
R Do not start the engine if the battery is
frozen. Let the battery thaw out first.
R Only jump start from batteries with the
same
voltage rating (12 V). Jump starting
with a more powerful battery could
damage the vehicle’s electrical system.
Such damage will not be covered by the
smart Limited Warranty.
R Only use jumper cables with sufficient
cross-section and insulated terminal
clamps.
R Always make sure the jumper cables are
not on or near pulleys, fans or other parts
that move when an engine is started or
running.
R Should the battery be drained
completely, let the donating power
source charge the vehicle for several
minutes before reattempting the
starting process. G
WARNING
Keep flames or sparks away from battery. Do
not smoke.
Observe all safety instructions and
precautions when handling automotive
batteries. 200
Jump starting
>> Practical hints.

Jump start assistance
Your vehicle’s battery is located in the passenger footwell below the footrest
(Y page 198).
For jump starting, use the terminals of the battery, keeping the leads connected.
X Make sure the two vehicles do not touch.
X Switch off all electrical consumers.
X Engage the parking brake.
X Move the gear selector lever to park position P.
X Turn off the engine.
X Get access to the battery in the passenger footwell (Y page 198).
X Remove the positive terminal cover. Position
A represents the charged battery of another vehicle or an equivalent starter
pack.
! Never invert the terminal connections!
X Connect positive terminal : of charged battery A with positive terminal ; of
discharged battery B with a jumper cable. Clamp the jumper cable to positive
terminal : of charged battery A first.
X Start the engine of the vehicle with charged battery A and run at idle speed.
X Connect negative terminal = of charged battery A with negative terminal ? of
discharged battery B with a jumper cable. Clamp the jumper cable to negative
terminal = of charged battery A first.
X Start the engine of the vehicle with discharged battery B and run at idle speed. You
can now switch on the electrical consumers. Do not switch on the headlamps under any
circumstances. Jump starting
201>> Practical hints. Z

X
Remove the jumper cables from negative terminals = and ? first.
X Remove the jumper cables from positive terminals : and ;.
You can now switch on the headlamps.
X Remount the positive terminal cover.
X Have the battery checked at the nearest authorized smart center. Towing
About towing
This section offers information on towing
methods for breakdown situations,
emergency towing, and flat towing smart
vehicles. Recommended towing method -
Breakdown situation
smart recommends that the vehicle be
transported with all wheels off the ground
using a flatbed carrier truck or
appropriate wheel lift/dolly equipment.
X Switch off the tow‑away protection* and
interior motion sensor*
(Y page 49).
! To
prevent damage during transport, do
not tie down the vehicle by its chassis or
suspension parts — use only wheel straps
to position and hold down the vehicle.
Improper tie down on a flatbed carrier
truck or trailer can damage suspension
parts and body panels. Emergency towing
When circumstances do not permit the
recommended towing method, the vehicle
may

be towed with all wheels on the ground
using a strap or tow bar connected to
another vehicle. Only tow the vehicle as far
as necessary to have the vehicle moved to a
safe location where the recommended
towing method can be employed. G
WARNING
If circumstances require towing the
vehicle with all wheels on the ground,
always tow with a tow bar if:
R the engine will not run
R there is a malfunction in the brake
system
R there is a malfunction in the power
supply or in the vehicle’s electrical
system
A

tow bar is necessary to adequately control
the towed vehicle.
Prior to towing the vehicle with all wheels
on the ground, make sure the gear selector
lever is in neutral position N and the
ignition is switched off. G
WARNING
With the engine not running, there is no
power assistance for the brake and
steering* systems. In this case, it is
important to keep in mind that a
considerably higher degree of effort is
necessary to brake and steer the vehicle.
Adapt your driving accordingly.
! Do not tow the vehicle with the front
axle raised. Doing so may cause serious
damage to the brake system which is not
covered by the smart Limited Warranty.
! Before towing the vehicle observe the
following instructions:
R Do not tow with sling-type equipment
attached

to suspension parts. This may202
Towing
>> Practical hints.
* optional