
Parts service
The “Technical data” section provides the
necessary technical data for your vehicle.
Genuine smart Parts are subjected to
stringent quality inspections. Each part
has been specifically developed,
manufactured or selected for and adapted
to smart vehicles.
Therefore, Genuine smart Parts should be
installed.
! The
use of non-genuine smart parts and
accessories not authorized by smart
could damage the vehicle, which is not
covered by the smart Limited Warranty,
or could compromise the vehicle’s
durability or safety. Warranty coverage
Your vehicle is covered under the terms of
the warranties printed in the smart USA
Warranty
booklet (USA only) or the Warranty
booklet (Canada only).
Your authorized smart center will exchange
or repair any defective parts originally
installed on the vehicle in accordance with
the terms of the following warranties:
R smart USA Limited Warranty (USA only)
R New Vehicle Limited Warranty (Canada
only)
R Emission System Warranty
R Emission Performance Warranty
R Corrosion Warranty
R California, Connecticut, Maine,
Massachusetts, New York, Pennsylvania,
Rhode Island, and Vermont Emission
Control System Warranty
R smartmove Assistance (Canada only)
R State Warranty Enforcement Laws (Lemon
Laws, USA only)
Replacement parts and accessories are
covered by the smart Parts and Accessories warranties, copies of which are available
at any authorized smart center.
Loss of Warranty booklet
Should you lose your smart USA Warranty
booklet (USA only) or the Warranty booklet
(Canada only), have an authorized smart
center arrange for a replacement. It will
be mailed to you. Engine electronics
Work on engine electronics
G
WARNING
Always have maintenance work on engine
electronics
and components performed by a
qualified specialist, e.g. at a smart
center. In particular, work relevant to
safety or on safety related systems must be
carried out at a qualified specialist
workshop.
! Always have maintenance work on the
engine electronics and components, such
as control modules, sensors and
connecting cables, performed by a
qualified specialist who has the
necessary knowledge and tools to carry
out the work required, e.g. at a smart
center. Otherwise there is a danger that
vehicle components may wear more
rapidly, which may void the vehicle’s
warranty. Retrofitting electrical and electronic
devices
Electrical and electronic devices can
endanger vehicle operating safety.
! Damage
or consequential damage due to
retrofitting a device in the vehicle is
not covered by smart’s warranty.
If you install telephones or radio
transmitters in the vehicle you must have 212
Engine electronics
>> Technical data.

Rims and tires
Notes
! 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 the ABS or the 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
R poor handling characteristics
R increased noise
R 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.
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. Mobility
Your
vehicle is equipped with a tire repair
kit (Y page 186). In case of a flat tire, it
enables you to drive to the nearest
authorized smart center on the sealed tire. If the tire is damaged too severely for the
tire sealant to provide a reliable tire
repair:
X
Contact the nearest authorized smart
center.
or
X Call Roadside Assistance. Rims and tires
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>> Technical data. 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

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