2011 SMART FORTWO COUPE engine coolant

XTurn off the engine.XEngage the parking brake.XOpen the tailgate.GWarning!
Exercise extreme caution if you see flames
or smoke coming from the engine
compartment. Move away from the vehicle
and call the fire department.
If the coolant temperature warning lamp
indicates that the engine is overheated, do
not attempt to open the engine compartment
cover. Move away from the vehicle and wait
until the engine has cooled before opening
the engine compartment.
GWarning!
To help prevent personal injury, stay clear
of moving parts when the engine
compartment cover is open and the engine
is running.
GWarning!
The engine is equipped with a
transistorized ignition system that
utilizes high voltage. Do not touch any
components (ignition coils, spark plug
sockets, diagnostic socket) of the ignition
system
Rwhile the engine is running
Rwhile starting the engine
Rif ignition is “on” and the engine is
turned manually
XOpening: Grasp the strap on cargo
compartment floor \000G.
XLift cargo compartment floor \000G with the
strap.
XEngage hook \000

XCheck the engine oil level once more.XAdd 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.
XScrew filler cap \000F back on the filler
neck.
XClose the engine compartment cover
(Y page 119).
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.
iThe service flap has a strap on the rear
side that ties it to the vehicle body.
GWarning!
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.
GWarning!
Make sure the service flap is locked while
driving. Otherwise, the service flap could
become detached and pose a hazard to you
or others.
GWarning!
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.
XPark the vehicle on level ground.XTurn off the engine.XEngage the parking brake.
Removing
XFold both levers \000G outward in direction
of the arrows \000

Coolant temperature
During severe operating conditions and
stop-and-go city traffic, the coolant
temperature may rise.
! Excessive coolant temperature causes
the red coolant temperature warning
lamp 00AE in the instrument cluster
comes on.
The engine should not be operated with
the red coolant temperature warning
lamp illuminated. Doing so may cause
serious engine damage which is not
covered by the smart Limited Warranty.
For more information on coolant
temperature warning lamp ( Y page 172).GWarning!
Driving when your engine is overheated can
cause some fluids which may have leaked
into the engine compartment to catch fire.
You could be seriously burned.
Steam from an overheated engine can cause
serious burns which can occur just by
opening the engine hood. Stay away from the
engine if you see or hear steam coming from
it.
Stop the vehicle in a safe location away
from other traffic. Turn off the engine, get
out of the vehicle and do not stand near the
vehicle until the engine has cooled down.
Driving abroad
Abroad, there is an extensive smart service
network at your disposal. If you plan to
drive into areas which are not listed in the
index of your smart center directory, you
should request pertinent information from
an authorized smart center.
Symmetrical low beams
i If you drive in countries where
vehicles drive on the other side of the
road than the country in which the
vehicle is registered, you must have the
headlamps modified for symmetrical low
beams. Relevant information can be
obtained at any authorized smart center.
Vehicle care
Care tips
Regular and proper care will help to
maintain the value of your vehicle. The
best way to protect your vehicle from
harmful environmental influences is to
wash it and use protective treatments
regularly.
smart recommends that you care for the
paintwork at least twice a year (e.g. in the
spring and autumn).
GWarning!
Many cleaning products can be hazardous.
Some are poisonous, others are flammable.
Always follow the instructions on the
particular container. Always open your
vehicle’s doors or windows when cleaning
the inside.
Never use fluids or solvents that are not
designed for cleaning your vehicle.
Always lock away cleaning products and
keep them out of reach of children.
! Follow the care tips. Wash your vehicle
preferably by hand.
While in operation or even while parked,
your vehicle is subjected to varying
external influences, which left unchecked
can attack the paint as well as the vehicle
underbody and lead to permanent damage.
Such damage is caused not only by extreme
and varying climatic conditions, but also
by:
R Air pollution
R Road salt
R Tar
R Gravel and stone chipping
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Vehicles without control systemDisplay messagesPossible causes/consequences and 0050 SolutionsThe electronic immobilizer is not working. XHave the system checked at an authorized smart center.There is a malfunction in the shifting system. XHave the system checked at an authorized smart center.The transmission is taught-in ( Y page 86).XHave the system checked at an authorized smart center.
Vehicles with control system*
Display messagesPossible causes/consequences and 0050 Solutions00AE
Switch Engine OffThe coolant is too hot.XStop the vehicle immediately as soon as it is safe to do so.XTurn off the engine immediately.XEngage the parking brake.XMake sure the air supply for the radiator is uninterrupted.XOnly start the engine again after the display message
disappears. You could otherwise damage the engine.GWarning!
Driving when your engine is overheated can cause some fluids which may have leaked into
the engine compartment to catch fire. You could be seriously burned.
Steam from an overheated engine can cause serious burns which can occur just by opening
the engine hood. Stay away from the engine if you see or hear steam coming from it.
Stop the vehicle in a safe location away from other traffic. Turn off the engine, get out of
the vehicle and do not stand near the vehicle until the engine has cooled down.
! 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.
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ProblemPossible causes/consequences and 0050 Solutions0026 0024
The turn signal
indicator lamp(s)
flashes at double
frequency.One of the turn signals is malfunctioning.XReplace the bulb as soon as possible ( Y page 181).
or
XHave the turn signal checked at an authorized smart center
as soon as possible.00ACThe fuel cap
indicator lamp
comes on when
the engine is
running.The fuel cap may not be closed properly or the fuel system may
be leaky. XCheck the fuel cap ( Y page 118).XIf it is not closed properly: Close the fuel cap.XIf it is closed properly: Have the fuel system checked at an
authorized smart center.
Engine
ProblemPossible causes/consequences and 0050 Solutions00AEThe coolant
temperature
warning lamp
illuminates
while the
engine is
running.The coolant is too hot. XStop the vehicle immediately in a safe location.XDo not continue to drive.XTurn off the engine.XEngage the parking brake when leaving the vehicle.XContact Roadside Assistance or an authorized smart center.The coolant level has fallen below the marking bar on the
coolant reservoir ( Y page 124).XAdd coolant as required.XHave the coolant system checked for leaks at an authorized
smart center.GWarning!
Driving when your engine is overheated can cause some fluids which may have leaked into
the engine compartment to catch fire. You could be seriously burned.
Steam from an overheated engine can cause serious burns which can occur just by opening
the engine hood. Stay away from the engine if you see or hear steam coming from it.
Stop the vehicle in a safe location away from other traffic. Turn off the engine, get out of
the vehicle and do not stand near the vehicle until the engine has cooled down.
! 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.
172What to do if ...>> Practical hints.
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CapacitiesComponentsModelCapacityFuels, coolants, lubricants,
etc.Engine with oil
filter All models3.5 US qt (3.3 l)Approved engine oilsCooling system All modelsapprox. 4.5 US qt (4.3 l)Anticorrosion/Antifreeze
meeting specification
MB 325.0Fuel tank All models8.72 US gal (33.0 l)Premium unleaded gasoline
(Minimum Posted Octane 91
[Avg. of 96 RON/86 MON])Fuel tank
reserveAll modelsapprox. 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 models4.0 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.220Service fluids and capacities>> Technical data.* optionalBA 451 USA, CA Edition A 2011; 1; 4, en-UShereepeVersion: 3.0.3.62010-05-11T15:12:26+02:00 - Seite 220

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
have 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
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