fuel SMART FORTWO COUPE 2008 Owner's Guide

Flat tire
270
>> Practical hints.
!
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.>Drive to the nearest authorized smart cen

ter, to have the damaged tire replaced.
>Contact an authorized smart center as soon
as possible to obtain a new filler hose
4 and
a new tire sealant container
9.
>Bring used tire sealant materials to an
authorized smart center for proper dispos

al.
>Replace your tire sealant container every
4 years. Replacement containers are avail

able at any authorized smart center.
G
Warning!
Follow recommended tire inflation
pressures.
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 underinflate tires. Underinflated
tires wear excessively and/or unevenly,
adversely affect handling and fuel econ

omy, and are more likely to fail from being
overheated.
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. Overload

ing the tires can overheat them, possibly
causing a blowout. Overloading the tires
can also result in handling or steering
problems, or brake failure.
G
Warning!
After changing a tire, contact a smart
center to make sure that 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).

Jump starting
276
>> Practical hints.
!
Do not tow start vehicle.
!
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 cen

ter.
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 battery of
another vehicle. Observe the following:
• Jump starting should only be performed
when the engine and catalytic converter are
cold.
• Do not start the engine if the battery is
frozen. Let the battery thaw out first.
• Only jump start from batteries with the
same voltage rating (12 V). Jump starting
with a higher voltage battery could damage
the vehicle’s electrical system, which will
not be covered by the smart Limited
Warranty.
• Only use jumper cables with sufficient
cross
section and insulated terminal
clamps.
• 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.
G
Warning!
Failure to follow these directions will
cause damage to the electronic compo

nents, and can lead to a battery explosion
and severe injury or death.
Never lean over batteries while connect

ing or jump starting, you might get in

jured.
Battery fluid contains sulfuric acid. Do
not allow this fluid to come in contact with
eyes, skin or clothing. In case it does, im

mediately flush affected area with water,
and seek medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and very explosive.
K e e p f l a m e s o r s p a r k s a w a y f r o m b a t t e r y ,
avoid improper connection of jumper
cables, smoking, etc.
Attempting to jump start a frozen battery
can result in it exploding, causing per

sonal injury.
Read all instructions before proceeding.

Fuses
284
>> Practical hints.
Fuse chartNo.
Accessory/Componant
Amperage
Color
1
Engine
25 A
Neutral
2
Windshield wipers
25 A
Neutral
3
Power window, left and right
20 A
Yellow
4
Blower
25 A
Neutral
5
Front fog lamps
10 A
Red
6
Right parking and lamp, instrument lighting, terminal 58R
7.5 A
Brown
7
Parking and lamp, left
7.5 A
Brown
8
Engine
25 A
Neutral
9
Engine
7.5 A
Brown
10
Engine
15 A
Blue
11
ESP
®
25 A
Neutral
12
Switches strip, on
board diagnosis socket, turn signal lamp, transmission
control unit
10 A
Red
13






14
Charge air cooler, air conditioning compressor
15 A
Blue
15
Audio, subwoofer, interior lighting
15 A
Blue
16
Fuel pump
15 A
Blue
17
Rear window wiper (coupé only)
15 A
Blue
18
ESP
®, power steering, air bag, instrument panel
10 A
Red
19
Motor control unit, on
board diagnosis socket, transmission control unit
7.5 A
Brown
20
Air conditioning system, exterior mirror adjustment, washer pump, audio,
seat heating, gear selector lever control unit
10 A
Red

Rims and tires
298
>> Technical data.
!
Only use tires which have been tested and
approved by smart. Tires approved by smart
are developed to provide best possible
performance in conjunction with the driving
safety systems on your vehicle such as ABS
or ESP
®.
Using tires other than those approved by
smart may result in damage that is not
covered by the smart Limited Warranty.
!
Using tires other than those approved by
smart can have detrimental effects, such as
• poor handling characteristics
• increased noise
• increased fuel consumption
Moreover, tires and rims not approved by
smart may, under load, exhibit dimensional
variations and different tire deformation
characteristics that could cause them to come
into contact with the vehicle body or axle
parts. Damage to the tires or the vehicle may
be the result.
i
Further information on tires and rims is
available at any authorized smart center.
A placard with the recommended tire inflation
pressure is located on the driver’s door
B
pillar (

page 185).
The tire inflation pressure should be checked
regularly and should only be adjusted on cold
tires. Follow tire manufacturer’s maintenance
recommendation included with vehicle.

Service fluids and capacities
304
>> Technical data.
Components
Model
Capacity
Fuels, coolants, lubricants, etc.
Engine with oil filter
All models
approx. 3.5 US qt (3.3 l)
Approved engine oils
Transmission
All models
2.4 US qt (2.3l)
BOT328
Brake system
All models
1.05 US qt (1.0 l)
Brake fluid (DOT 4+)
Cooling system
All models
approx. 4.5 US qt (4.3 l)
Anticorrosion/Antifreeze meeting specification MB 325.0
Fuel tank
All models
8.72 US gal (33.0 l)
Premium unleaded gasoline:
including a reserve of
All models
1.32 US gal (5.0 l)
Minimum Posted Octane 91 (Afvg. of 96 RON/86 MON)
Air conditioning system*
All models
R
134a refrigerant and special PAG lubricant oil (never R
12)
Windshield washer system
All models
4.0 US qt (3.8 l)
Windshield washer concentrate
1
1 Use a windshield washer concentrate labeled for summer and water for temperatures above freezing point or a windshield washer concentrate labeled for winter and water for
temperatures below freezing point. Follow suggested mixing ratios (

page 308).

Service fluids and capacities
306
>> Technical data.
Premium unleaded gasoline
!
To maintain the engine’s durability and
performance, premium unleaded gasoline
must be used. If premium unleaded gasoline is
not available and low octane fuel is used,
follow these precautions:
• Have the fuel tank only partially filled with
unleaded regular gasoline and fill up with
premium unleaded gasoline as soon as
possible.
• Avoid full throttle driving and abrupt
acceleration.
• Do not exceed an engine speed of 3 000 rpm
if the vehicle is loaded with a light load such
as two persons and no cargo.
•Do not exceed
2/3 of maximum accelerator
pedal position if the vehicle is fully loaded
or operating in mountainous terrain.
Fuel requirementsOnly use premium unleaded fuel:
• The octane number (posted at the pump)
must be 91 min.
It is an average of both the R
esearch
O
ctane N
umber (RON) and the M
otor O
ctane
N
umber (MON): (RON+MON) /2. This is also
known as the ANTI
KNOCK INDEX.
Unleaded gasoline containing oxygenates
such as ethanol, IPA, IBA and TBA can be used
provided the ratio of any one of these
oxygenates to gasoline does not exceed 10%;
MTBE must not exceed 15%.
The ratio of methanol to gasoline must not
exceed 3% plus additional cosolvents.
Using mixtures of ethanol and methanol is not
allowed. Gasohol, which contains 10% ethanol
and 90% unleaded gasoline, can be used.
These blends must also meet all other fuel
requirements, such as resistance to spark
knock, boiling range, vapor pressure, etc.
G
Warning!
Gasoline is highly flammable and poison

ous. It burns violently and can cause
serious personal injury.
Never allow sparks, flame or smoking
materials near gasoline!
Turn off the engine before refueling.
Whenever you are around gasoline, avoid
inhaling fumes and skin or clothing
contact, extinguish all smoking materials.
Direct skin contact with fuels and the
inhalation of fuel vapors are damaging to
your health.

Service fluids and capacities
>> Technical data.
307 Gasoline additives
A major concern among engine manufacturers
is carbon build
up caused by gasoline. smart
recommends only the use of quality gasoline
containing additives that prevent the build

up of carbon deposits.
After an extended period of using fuels with

out such additives carbon deposits can build
up, especially on the intake valves and in the
combustion area, leading to engine perfor

mance problems such as:
•Warm
up hesitation
•Unstable idle
•Knocking/pinging
•Misfire
• Power lossIn areas where carbon deposits may be
encountered due to lack of availability of
gasolines which contain these additives,
smart recommends the use of additives
approved by us for use on smart vehicles.
Contact an authorized smart center for a list

ing of approved product(s). Follow directions
on product label.Do not blend other fuel additives with fuel.
This only results in unnecessary costs and
may be harmful to the engine operation.
!
Damage or malfunction resulting from
poor fuel quality or from blending additional
fuel additives other than those tested and
approved by us for use on smart vehicles are
not covered by the smart Limited Warranty.