2008 SMART FORTWO COUPE key battery

What to do if ...
248
>> Practical hints. Flashes at double frequency:
• if one of the turn signals is malfunctioning.
>Replace the bulb as soon as possible
(
page 254).
or
>Have the turn signal checked at an autho

rized smart center as soon as possible.
EngineThe engine does not start:
>Check if
• the gear selector lever is in park
positionP,
• the brake pedal has been depressed,
• the transmission position indicator is on

or
.
The engine does not start within 4 seconds:
>Wait for a few seconds.
>Repeat the starting procedure.
Remember that extended starting attempts
can drain the vehicle battery.
The engine does not start after several
starting attempts:
>Set the parking brake when leaving the
vehicle.
>Contact Roadside Assistance or an autho

rized smart center.
Loss of keyIf you lose a key, you should do the following:
>Have the key deactivated at an authorized
smart center.
>Report the loss of the key to your car
insurance company immediately.
>If necessary have the mechanical lock
replaced.
Your authorized smart center will be glad to
supply you with a replacement following an
identity check.

Unlocking/locking manually
250
>> Practical hints.
Unlocking the vehicleYou can unlock the driver’s door and the fuel
filler flap by unlocking the driver’s door using
the key. The lock cylinder is fitted with a cap.
>Press button
©
on the key.
The anti
theft warning system* is disarmed.
i
If the transmitter battery in the key is
discharged, the anti
theft warning system*
can no longer be disarmed with button
©
on
the key. For replacing the transmitter battery
(

page 253).
Unlocking the vehicle with the key and opening
a door or the tailgate will trigger the anti

theft warning system* (

page 77).
To cancel the alarm:
>Insert the key in the starter switch.
>Turn starter switch in Position 1
(

page 91).
1
Cap
2
Lock cylinder
>Remove cap
1 from lock cylinder
2.
>Unlock the driver’s door.
The driver’s door and the fuel filler flap are
unlocked.
i
To unlock the vehicle centrally press the
central unlocking switch in the upper center
console (

page 38).
Locking the vehicleIf you can no longer lock the vehicle using the
remote control and you do not have a spare
transmitter battery at hand, please proceed
as follows:
>Open the driver's door.
>Press the central locking switch
(

page 84).
The indicator lamp on central locking
switch
1 comes on, when the starter switch
is in position 1.
The indicator lamp on central locking
switch1 flashes, when the starter switch is
in Position 0.
>Remove the key from the starter switch,
take it with you, and close all doors.
The vehicle is now locked and the anti
theft
warning system* is armed. P72.10
3348
31

Replacing transmitter battery
>> Practical hints.
253 Replacing transmitter battery
Replacement battery: CR 2016 button cell!
Replace the remote control's transmitter
battery every two years at the latest. Other

wise there is a danger of leakage. The remote
control could be damaged.
1
Key housing top half>Insert a suitable object such as a coin into
the slot at the eyelet of the key housing.
>Carefully turn the coin until key housing top
half
1 is unlatched.
>Open key housing top half
1 to the side.
2
Transmitter battery
>Remove transmitter battery
2 from the
board.
!
Check the polarity when inserting the new
transmitter battery. You could otherwise
damage parts of the electrical system. When
inserting the batteries, make sure they are
clean and free of lint.
>Insert the new transmitter battery.
>Press both halves of the key housing
together again.
>Check the operation of the remote control.
P80.35
2289
31

Flat tire
268
>> Practical hints. >Unscrew the valve cap from the tire valve of
the damaged tire.
>Pull off the stopper of filler hose
4.
>Screw the end of filler hose
4
onto the tire
valve.
>Insert electrical plug
6
into the auxiliary
power outlet (

page 164).
>Insert the key in the starter switch and turn
it to position1.
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.
>PressI on electric air pump switch
7.
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.>Let the electric air pump inflate the tire for
a maximum of ten minutes.
Pressure gauge
2 must display at least
26 psi (1.8 bar) is reached. The filler hose
can become hot during inflation.
Please exercise appropriate caution.
!
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.
>If the tire inflation pressure of at least
26 psi (1.8 bar) is not attained, turn off the
electric air pump by pressing0 on electric
air pump switch
7.
>Unscrew the end of filler hose
4
from the
tire valve.
>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.>Screw the end of filler hose
4 onto the tire
valve.
>Inflate the tire again.
>After attaining a tire inflation pressure of
26 psi (1.8 bar), press0 on electric air
pump switch
7.
The electric air pump is switched off.
>Turn the key in the starter switch to
position0.
G
Warning!
If a tire inflation pressure of 26 psi
(1.8 bar) 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 as

sistance or call Roadside Assistance.

Battery
272
>> Practical hints.
G
Warning!
Failure to follow these instructions can
result in severe injury or death.
Observe all safety instructions and
precautions when handling automotive
batteries (

page 271).
Never lean over batteries while connect

ing, 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 bat

tery. 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 ex

plosive 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.
• When disconnecting the battery, always
disconnect the negative terminal first,
followed by positive terminal.
• When connecting the battery, always
connect the positive terminal first, fol

lowed by the negative terminal.
• Do not loosen or disconnect the
battery terminal clips while the engine
is running or the key is in the starter
switch.

Battery
>> Practical hints.
273
!
Never loosen or detach battery terminal
clamps while the engine is running or the key
is in the starter switch. Otherwise the alter

nator 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 cen

ter for further information.
!
Never invert the terminal connections!
Disconnecting, removing, charg

ing, reinstalling and reconnecting
the batteryDisconnecting the battery
>Set the parking brake.
>Move the gear selector lever to park
positionP.
>Turn off all electrical accessories.
>Turn off the engine.
>Open the passenger door.
>Move the passenger seat to the rear as far
as possible.>Unscrew the carpet holder in the
passenger’s footwell (

page 234).
>Lift the carpet.
1
Footrest
2
Fastening screw
>Unscrew fastening screw
2 counterclock

wise.
>Pull footrest
1 sideways out of the vehicle.
>Read and observe safety instructions and
precautions (
page 271).
G
Warning!
With a disconnected battery
• you will no longer be able to turn the
key in the starter switch.
• the gear selector lever will remain
locked in positionP.P54.10
2831
31

Battery
>> Practical hints.
275
>Charge battery in accordance with the
instructions of the battery charger manu

facturer.!
Only use chargers of a correct and suit

able voltage.
!
Never attempt to recharge a frozen bat

tery. Have the battery checked at a smart
center. The battery housing could be dam

aged.Reinstalling the battery
>Reinstall the charged battery. Follow the
previously described steps in reverse
order.
!
The battery, its filler caps and the ventila

tion hose must always be securely installed
when the vehicle is in operation.
Reconnecting the battery
!
Always connect the battery in the order
described below. Otherwise the vehicle’s
electronics can be damaged.
>Turn off all electrical accessories.
>Remove the key from the starter switch.
!
Never invert the terminal connections!
>Connect the battery positive lead and
fasten cover
4 (
page 274).
>Connect battery negative lead
3
(

page 274).
i
After battery power (e.g. due to reconnec

tion) was interrupted, you will have to set the
clock (

page 138).
i
Have the battery’s charge status and acid
level checked at the start of the cold season at
a smart center.
G
Warning!
Never charge a battery while still
installed in the vehicle. Gases may escape
during charging and cause explosions
that may result in paint damage, corro

sion or personal injury.

Towing
278
>> Practical hints.
About towingsmart recommends that the vehicle be trans

ported with all wheels off the ground using
flatbed or appropriate wheel lift/dolly equip

ment.!
Use flatbed or wheel lift/dolly equipment
with the key in the starter switch in position0.
Do not tow with sling
type equipment. Towing
with sling
type equipment over bumpy roads
will damage radiator and supports.
To prevent damage during transport, do not
tie down the vehicle by its chassis or suspen

sion parts. Use the towing eye.
Switch off the tow
away protection*
(
page 78).
When circumstances do not permit the
recommended towing methods, the vehicle
may be towed with all wheels on the ground or
front wheels raised only so far as necessary
to have the vehicle moved to a safe location
where the recommended towing methods can
be employed.
!
If the vehicle is towed with the front axle
raised, the gear selector lever must be in
neutral positionN and the engine must be shut
off (key in starter switch position0). Active
braking action through the ESP
® may other

wise seriously damage the brake system.
When towing the vehicle with all wheels on the
ground, the gear selector lever must be in
neutral positionN and the key must be in
starter switch position0.
When towing the vehicle with all wheels on the
ground or the front axle raised, the vehicle
may be towed only for distances up to 30 miles
(50 km) and at a speed not to exceed 30 mph
(50 km/h).
i
If the the battery is disconnected or dis

charged the gear selector lever will remain
locked in park position P. Contact an autho

rized smart center for assistance or call
Roadside Assistance.G
Warning!
smart does not recommend towing a vehi

cle when all wheels are on the ground.
However, in an emergency a tow bar can
be utilized if:
• the engine will not run
• there is a malfunction in the brake
system
• there is a malfunction in the power
supply or in the vehicle’s electrical
system
A tow bar is necessary to adequately con

trol the towed vehicle.
Prior to towing the vehicle with all wheels
on the ground, make sure that the key is
in starter switch position0.