
X
Install last wheel bolt and tighten it
slightly.
X Lower the vehicle until the vehicle is
resting fully on its own weight.
X Remove the jack.
X Tighten the wheel bolts. Observe a
tightening torque of 80 lb-ft (110 Nm). G
WARNING
Have the tightening torque checked after
changing awheel. The wheels could come
loose if they are not tightened to a torque
of 80 lb-ft (110 Nm).
i The Tire Pressure Monitoring System
(TPMS)* only functions on wheels that are
equipped with the proper electronic
sensors (Y page 125). Batteries
Notes on the vehicle’s electrical
system
The vehicle’s electrical system provides
power for the electric drive and all
electrical consumers or components of the
vehicle.
Power is supplied to the vehicle via two
batteries:
R 12-volt battery
R High-voltage battery Notes on the 12‑volt battery
Your vehicle’s 12‑volt battery is located in
the passenger footwell below the footrest
(Y page 192).
The 12 volt battery should always be
sufficiently charged in order to achieve
its rated service life. Refer to the
Scheduled Maintenance Guide (USA only) or
the Service booklet (Canada only) for
battery maintenance intervals.
If you use your vehicle mostly for short-
distance trips, you will need to have the 12 volt battery charge checked more
frequently.
When replacing the battery, always use
batteries approved by smart. For
information, contact an authorized
electric drive smart center.
If you do not intend to operat
eyour vehicle
for an extended period of time, consult an
authorized electric drive smart center
about steps you need to observe. G
WARNING
Observe all safety instructions and
precautions when handling automotive
batteries. Risk of explosion.
Fire, open flames and
smoking are prohibited
when handling batteries.
Avoid creating sparks.
Battery acid is caustic.
Do not allow it to come
into contact with skin,
eyes or clothing.
Wear suitable protective
clothing, especially
gloves, apron and
faceguard.
Wear eye protection.
Rinse any acid spills
immediately with clear
water. Contact a physician
if necessary.
Keep children away.
Follow the instructions in
this Operator’s Manual.190
Batteries>> Practical hints.
* optional

G
WARNING
Failure to follow these instructions can
result in severe injury or death.
Observe all safety instructions and
precautions when handling automotive
batteries.
Never lean over batteries while
connecting, you might get injured.
Batter yfluid 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 battery.
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 explosive
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.
R When disconnecting the battery, always
disconnect the negative terminal first,
followed by positive terminal.
R When connecting the battery, always
connect the positive terminal first,
followed by the negative terminal.
R Do not loosen or disconnect the battery
terminal clips while the drive system is running or the key is in the starter
switch.
! Never loosen or detach battery terminal
clamps while the drive system is running
or the key is in the starter switch.
Otherwise, electronic components could
be severely damaged.
Have the battery checked regularly at an
authorized electric drive smart center.
Refer to Maintenance Booklet for
maintenance intervals or contact an
authorized electric drive smart center
for further information.
! Never invert the terminal connections! Notes on the high‑voltage battery
Have work on the high-voltage battery
performed by an authorized electric drive
smart center only. Observe the safety notes
on (Y page 15) as well as the notes on the 12-
volt battery (Y page 190). G
WARNING
The electrolyte of the high-voltage
battery, i.e. the battery fluid, is toxic and
caustic. Do not allow this fluid to come in
contact with eyes, skin or clothing, for
example in case of an accident.
In case it does, immediately flush affected
area with water and seek medical help
immediately.
The high-voltage battery is located in the
vehicle underbody. Keep this in mind when
jacking up the vehicle. The vehicle has
designated take-up brackets for the jack.
For more information, see (Y page 189).
! Only position the jack on the
designated take-up brackets.
You must not position the jack under the
high-voltage battery. Otherwise, the
high-voltage battery could be damaged. Batteries
191>> Practical hints. Z

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-genuin esmart 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 (Canad aonly).
Your authorized electric drive smart
center will exchange or repair any
defective part soriginally 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 electric drive smart
center. Loss of Warranty booklet
Should you lose your smart USA Warranty
booklet (USA only) or the Warranty booklet
(Canad aonly), have an authorized electric
drive smart center arrange for a
replacement. It will be mailed to you. Drive system and high-voltage system
electronics
Work on drive system and high-voltage
system electronics
G
WARNING
Always have maintenance work on drive
system and high-voltage system
electronics and components performed by a
qualified specialist, e.g. at an authorized
electric drive smart center .Inparticular,
work relevant to safety or on safety related
systems must be carried out at a qualified
specialist workshop with expert knowledge
of electric drive vehicles.
! Always have maintenance work on drive
system and high-voltage system
electronics and components, such as
control modules, sensors and connecting
cables, performed by a qualified
specialist workshop with the necessary
expert knowledge of electric drive
vehicles and the tools to carry out the
work required, e.g. at an authorized
electric drive smart center. Otherwise
there is a danger that vehicle
components may wear more rapidly,
which may void the vehicle’s warranty. 206
Drive system and high-voltage system 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 energy 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 electric
drive 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 180). In case of a flat tire, it
enables you to drive to the nearest
authorized electric drive 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 electric
drive smart center.
or
X Call Roadside Assistance. 210
Rims and tires>> Technical data.

Capacities
Components Capacity Coolants, lubricants, etc.
Coolant system approx. 7.8 US qt (7.4 l) Anticorrosion/Antifreeze
meeting specification MB 325.0
Air conditioning system — R134a refrigerant and special
PAG lubricant oil (never R 12)
Windshield washer
system 1.1 US qt (1.0 l)
Windshield washer concentrate
13
(Y page 212)
Washer fluid mixing ratio
(Y page 212) 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 electric
drive smart center will provide you with
additional information. 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 14
.
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
13 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.
14 Refer to the notes for use on the container. 212
Service fluids and capacities>> Technical data.

G
WARNING
Windshield washer concentrate is highly
flammable. Fire, naked flames and smoking
are prohibited when windshield washer
concentrate is being handled. Coolants
The battery and drive system 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 approximatel y-35¦ (-37¥) and
corrosion protection.
! Add premixed coolant solution only.
Adding water and MB 325.0
Anticorrosion/Antifreeze separately
from each other, could cause drive system
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 electric drive 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 drive system and battery
temperature will increas edue 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 electric
drive 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 electric drive smart
center.
Capacities Cooling-system
capacity
All models approx. 7.8 US qt
(7.4 l)Service fluids and capacities
213>> Technical data. Z