engine oil SMART FORTWO COUPE 2012 User Guide

When checking the engine oil level
R
the vehicle must be parked on level
ground
R the
vehicle must have been stationary for
at least five minutes with the engine
turned off
X Turn off the engine.
X Engage the parking brake.
X Open the tailgate.
X Open the engine compartment cover
(Y page 117).
The oil dipstick is located in the engine
compartment on the passenger side. X
Pull out oil dipstick :.
X Wipe oil dipstick : clean with a clean
cloth.
X Fully insert oil dipstick : into the
dipstick guide tube.
X Pull out oil dipstick : again after
approximately one minute to obtain
accurate reading.
The oil level is correct when it is
between lower mark = (minimum) and
upper mark ; (maximum) on both sides
of oil dipstick :.
X Fully insert oil dipstick : into the
dipstick guide tube again.
X If necessary, add engine oil
(Y page 119).
i The
filling quantity between the upper
and lower marks on the oil dipstick is
approximately 1.1 US qt (1.0 l). Adding engine oil !
Only use approved engine oils and oil
filters required for vehicles with
Maintenance System. For a listing of
approved engine oils and oil filters
contact an authorized smart center.
Using engine oils and oil filters of
specification

other than those expressly
required for the Maintenance System, or
changing of oil and oil filter at change
intervals longer than those called for by
the Maintenance System will result in
engine or emission control system
damage not covered by the smart Limited
Warranty. G
WARNING
When adding engine oil, always use a funnel
to avoid spilling oil on any hot parts such
as the catalytic converter or exhaust
system.
If this should happen, however, the engine
must be thoroughly cleaned before you
continue your trip. The engine oil could
otherwise ignite.
The filler cap is located in the engine
compartment on the passenger side. X
Unscrew filler cap : from the filler
neck.
X Add engine oil as required.
Do not add more than 0.53 US qt (0.5 l)
engine oil at a time.
X Wait one minute until the engine oil has
run into the oil pan. Engine compartment
119
>> Operation. Z

X
Check the engine oil level once more.
X Add engine oil once more if necessary.
Be careful not to spill any oil when adding
to avoid environmental damage caused by
oil entering the ground and water.
! Excess engine oil must be siphoned or
drained
off. It could cause damage to the
engine or emission control system not
covered by the smart Limited Warranty.
X Screw filler cap : back on the filler
neck.
X Close the engine compartment cover
(Y page 117). Front compartment
Service flap
Remove the service flap to check the
coolant

level, windshield washer reservoir
level, and brake fluid level.
Insert the service flap on the front of the
vehicle so that it does not get damaged or
dirty.
i The service flap has a strap on the rear
side that ties it to the vehicle body. G
WARNING
Always turn the key to starter switch
position 0 and remove the key from the
starter switch before opening the service
flap.
If the windshield wipers should
inadvertently be switched on, you could be
seriously injured by the wiper washer
drive, which is located just below the
service flap. G
WARNING
Make sure the service flap is locked while
driving. Otherwise, the service flap could
become detached and pose a hazard to you
or others. G
WARNING
To help prevent personal injury, stay clear
of moving parts when the service flap is
open.
The radiator fan may continue to run for
approximately 30 seconds or may even
restart after the engine has been turned
off. Stay clear of fan blades.
! Check the fill levels at regular
intervals.
! Carefully remove ice, snow, and any
other deposits from the air intake
grilles above the service flap to ensure
air intake at all times.
X Park the vehicle on level ground.
X Turn off the engine.
X Engage the parking brake.
Removing X
Fold both levers ;
outward in direction
of the arrows = as far as they will go.
X Lift the front end of service flap :.
X Pull service flap :
forward slightly and
remove it upwards as indicated by
arrow ?. 120
Front compartment
>> Operation.

!
Do not aim directly at
R electrical parts
R electrical connectors
R seals
R other rubber parts
The distance should be at least 3.9 in
(10 cm) and the water temperature must
not exceed 140¦ (60¥). Follow the
instructions provided by the power
washer manufacturer on maintaining a
distance between the vehicle and the
nozzle of the power washer.
Always keep the jet of water moving
across the surface.
! Powerwashing could damage
R the high-voltage battery
R the drive system
R the engine compartment
Do not powerwash these components.
Wheel cover* X
Wash the wheel cover with shampoo and a
soft brush or in the car wash.
Decorative foils !
Decorative foils are permanently
adhered to the painted parts of the
vehicle and cannot be removed.
! Do not expose the foils to solvents,
gasoline or diesel.
i When
cleaning with a power washer, note
the following guideline values:
R Water temperature max. 176 ¦ (80¥)
R Minimum distance 11.8 in (30 cm)
R Jet of water strike at a right angle Paintwork care
The
frequency with which you care for your
paintwork is dependent on
R how much the vehicle is used
R where you normally park the vehicle (e.g.
in a garage or under a tree)
R the season
R weather and environmental influences
Rectifying paintwork damage You can use a touch-up paint pen to repair
minimal stone chip damage and scratches.
Recommended touch-up paint pens can be
obtained in a smart center.
i
For

any major paintwork damage, please
contact a smart center. Exterior Repair options
Plastic parts (body
panels) with
clearcoat Clearcoat touch-up
paint pen
Body panels with
base coat and
clearcoat recommended
touch-up paint pen
set in the relevant
color
tridion safety cell recommended
touch-up paint pen
set in the relevant
color
Soft top system (cabriolet only)
Regular care will protect the retractable
soft top and the rear soft top against
external influences, helping to preserve
its value. Use only an approved soft top
cleaner when removing dirt from the soft
top.
! Never clean the soft top using a power
washer,

as water could get into the inside
of the vehicle. 154
Vehicle care
>> Operation.
* optional

Display messages Possible causes/consequences and
M Solutions4
Switch Engine Off The engine oil level is too low. The engine could be damaged.
X
Stop the vehicle as soon as it is safe to do so.
X Turn off the engine.
X Engage the parking brake.
X Check the engine oil level (Y page 118) and add engine oil as
required (Y page 119). J
Release Parking
Brake You are driving with the parking brake engaged.
X
Release the parking brake. 5
Shift

to N or P to
Start You have attempted to start the engine while the automatic
transmission was in reverse gear
R or drive position D.
Shift the automatic transmission into park position P or
neutral position N.5
Apply Brakes to
Start You have attempted to start the engine without depressing the
brake pedal.
Depress the brake pedal to start the engine.
Display messages Possible causes/consequences and
M Solutions#
Charge Battery The battery is not being charged.
Possible causes:
R
alternator malfunctioning
R broken poly-V-belt
X Stop the vehicle immediately as soon as it is safe to do so.
X Turn off the engine immediately.
X Engage the parking brake.
X Check the poly-V-belt.
X If poly-V-belt is broken: Do not continue to drive. Contact
an authorized smart center.
X If poly-V-belt is intact: Have the vehicle checked at an
authorized smart center immediately. !
Among other possible causes, the poly-V-belt could be broken. Do not continue to
drive.

Otherwise, the engine will overheat due to an inoperative water pump which may
result in damage to the engine. 160
Display messages
>> Practical hints.

Problem Possible causes/consequences and
M Solutions;
The engine
malfunction
indicator lamp
illuminates
while driving. There is a malfunction in the system.
X
Have the vehicle checked at an authorized smart center
immediately. i
Some states may by law require you to visit a workshop as soon as the engine
malfunction indicator lamp comes on. Check local requirements. Problem Possible causes/consequences and
M Solutions5
The engine oil
pressure
indicator lamp
illuminates
while driving. The engine oil pressure is low.
X
Stop the vehicle immediately in a safe location.
X Do not continue to drive.
X Turn off the engine.
X Engage the parking brake when leaving the vehicle.
X Contact Roadside Assistance or an authorized smart center. 5
The engine oil
pressure
indicator lamp
goes out before
the engine
starts. The engine oil pressure indicator lamp has failed.
X
Check the engine oil level.
X Have the system checked at an authorized smart center. !
The engine oil pressure indicator lamp should not be ignored. Extended driving with
the engine oil pressure indicator lamp illuminated could result in serious engine
damage that is not covered by the smart Limited Warranty. What to do if ...
171
>> Practical hints. Z

Capacities
Components Model Capacity Fuels, coolants, lubricants,
etc.
Engine with oil
filter All models 3.5 US qt (3.3 l) Approved engine oils
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
(Minimum Posted Octane 91
[Avg. of 96 RON/86 MON])
Fuel tank
reserve All models approx. 1.32 US gal (5.0 l)
Air
conditioning
system* All models — R134a refrigerant and
special PAG lubricant oil
(never R 12)
Windshield
washer system All models 4.0 US qt (3.8 l) Windshield washer
concentrate
27
(Y page 222)
Washer fluid mixing ratio
(Y page 222) Engine oils
Engine oils are specifically tested for
their suitability in our engines and
durability for our service intervals.
Therefore, only use engine oils and oil
filters required for vehicles with the
Maintenance System. For a listing of
approved engine oils and oil filters
contact an authorized smart center.
! Using engine oils and oil filters of
specification
other than those expressly
required for the Maintenance System, or
changing of oil and oil filter at change
intervals longer than those called for by
the Maintenance System will result in
engine or emission control system
damage not covered by the smart Limited
Warranty. Please follow Maintenance System
recommendations for scheduled oil
changes. Failure to do so will result in
engine or emission control system
damage
not covered by the smart Limited
Warranty.
Viscosity grades for engine oils Using the chart below, select oil viscosity
according to the lowest air temperature
expected before the next oil change.
27 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. 220
Service fluids and capacities
>> Technical data.
* optional

Engine oil additives
! Do not blend oil additives with engine
oil. They may damage the engine.
Damage or malfunctions resulting from
blending oil additives are not covered
by the smart Limited Warranty. Any
authorized
smart center will provide you
with additional information. Air conditioning refrigerant
R134a (HFC) refrigerant and special
PAG lubricating oil are used in the air
conditioning system.
! Never use R 12 (CFC) or mineral-based
lubricating

oil. Otherwise damage to the
system will occur. Brake fluid
G
WARNING
During vehicle operation, the boiling
point of the brake fluid is continuously
reduced

through the absorption of moisture
from the atmosphere. Under extremely
strenuous operating conditions, this
moisture content can lead to the formation
of bubbles in the system, thus reducing the
system’s efficiency.
Therefore, the brake fluid must be replaced
regularly. Refer to your vehicle’s Maintenance Booklet for replacement
interval.
Only brake fluid approved by smart is
recommended.

Any authorized smart center
will provide you with additional
information. Premium unleaded gasoline
G
WARNING
Gasoline is highly flammable and
poisonous.
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.
! 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:
R Have the fuel tank only partially filled
with unleaded regular gasoline and
fill up with premium unleaded
gasoline as soon as possible.
R Avoid full throttle driving and abrupt
acceleration.
R 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.
R Do not exceed 2
/ 3 of maximum
accelerator pedal position if the
vehicle is fully loaded or operating in
mountainous terrain. Service fluids and capacities
221
>> Technical data. Z

Fuel requirements
Only use premium unleaded fuel. The octane
number (posted at the pump) must be 91 min.
It is an average of both the Research Octane
Number (RON) and the Motor Octane Number
(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. 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
without such additives carbon deposits can
build up, especially on the intake valves
and in the combustion area, leading to
engine performance problems such as:
R Warm-up hesitation
R Unstable idle
R Knocking/pinging
R Misfire
R Power loss
In areas where carbon deposits may be
encountered due to lack of availability of
gasolines which contain these additives, the use of smart approved additives is
recommended.

Contact an authorized smart
center for a listing of approved products.
Follow directions on the 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. Windshield/rear window washer system
During all seasons:
X Use a windshield washer concentrate
labeled for summer and water for
temperatures above freezing point.
X Use a windshield washer concentrate
labeled for winter and water for
temperatures below freezing point.
X Premix the windshield washer fluid in a
suitable container depending on the
outside temperature and in accordance
with the manufacturer’s instructions 28
.
Washer fluid mixing ratio R
Temperature above 32 ¦ (0¥):
1 part windshield washer concentrate
labeled for summer to 100 parts water
R Temperature of 14 ¦ (-10¥):
1 part windshield washer concentrate
labeled for winter to 2 parts water
R Temperature of -4¦ (-20¥):
1 part windshield washer concentrate
labeled for winter to 1 part water G
WARNING
Windshield washer concentrate is highly
flammable.
Fire, naked flames and smoking
28 Refer to the notes for use on the container.222
Service fluids and capacities
>> Technical data.

are prohibited when windshield washer
concentrate is being handled.
Coolants
The engine coolant is a mixture of water
and anticorrosion/antifreeze, which
provides:
R Corrosion protection
R Freeze protection
R Boiling protection (by increasing the
boiling point)
The
cooling system was filled at the factory
with a coolant providing freeze protection
to approximately -35¦ (-37 ¥) and
corrosion protection.
! Add premixed coolant solution only.
Adding water and MB 325.0
Anticorrosion/Antifreeze separately
from each other, could cause engine
damage not covered by the smart Limited
Warranty.
If the antifreeze mixture is effective to
-35¦ (-37 ¥), the boiling point of the
coolant in the pressurized cooling system
is reached at approximately 266 ¦
(130¥ ).
The coolant solution must be used year
round, even in countries which have high
temperatures to provide the necessary
corrosion protection and increase
boil‑over protection. Refer to
Maintenance/ Service Booklet for
replacement interval.
Coolant system design and coolant used
determine the replacement interval. The
replacement interval published in the
Maintenance booklet is only applicable if
MB 325.0 Anticorrosion/Antifreeze
solution or other smart approved products
of equal specification are used to renew
the coolant concentration or bring it back
up to the proper level. For information on other smart approved
products

of equal specification, contact an
authorized smart center.
To provide important corrosion
protection, the solution must be at least
50% anticorrosion/antifreeze (equivalent
to freeze protection to approximately
-35¦ [-37 ¥]).
If you use a solution that is more than 55%
anticorrosion/antifreeze (freeze
protection to approximately -49¦
[(-45 ¥]), the engine temperature will
increase due to the lower heat transfer
capability of the solution. Therefore, do
not use more than this amount of
anticorrosion/antifreeze.
If the coolant level is low, water and
MB 325.0 Anticorrosion/Antifreeze should
be used to bring it up to the proper level
(have cooling system checked for signs of
leakage). Please make sure the mixture is
in accordance with label instructions.
Always use anticorrosion/antifreeze that
has been approved by smart. For
information contact an authorized smart
center.
The water in the cooling system must meet
minimum requirements, which are usually
satisfied by normal drinking water.
If you are not sure about the water quality,
consult an authorized smart center.
Anticorrosion/antifreeze Your vehicle contains a number of
aluminum parts. The use of aluminum
components in motor vehicle engines
necessitates that anticorrosion/
antifreeze

coolant used in such engines be
specifically formulated to protect the
aluminum parts.
Failure to use such anticorrosion/
antifreeze coolant will result in a
significantly shortened service life.
Therefore, the following product is
strongly recommended for use in your Service fluids and capacities
223
>> Technical data. Z