maintenance SMART FORTWO COUPE ELECTRIC DRIVE 2014 User Guide

R
Remove unnecessary loads.
R Have all maintenance work performed at
the intervals specified in the Mainte-
nance Booklet and as required by the
Maintenance System. Contact an author-
ized electric drive smart center.
Energy consumption is also increased by
driving in stop-and-go traffic, on short
trips, and in hilly areas. Tires
G
WARNING
If you feel a sudden significant vibration
or ride disturbance, or you suspect that
possible damage to your vehicle has occur-
red, you should turn on the hazard warning
flashers, carefully slow down, and drive
with caution to an area which is a safe dis-
tance from the road.
Inspect the tires and the vehicle underbody
for possible damage. If the vehicle or tires
appear unsafe, have the vehicle towed to the
nearest smart center or tire dealer for
repairs.
Treadwear indicators (TWI) are required by
law. These indicators are located in six
places on the tread circumference and
become visible at a tread depth of approx-
imately 1
/ 16 in (1.6 mm), at which point the
tire is considered worn and should be
replaced.
The treadwear indicator appears as a solid
band across the tread. G
WARNING
Although the applicable federal motor
vehicle safety laws consider a tire to be
worn when the treadwear indicators (TWI)
become visible at approximately 1
/ 16 in
(1.6 mm), we recommend that you do not allow
your tires to wear down to that level. As
tread depth approaches 1
/ 8 in (3 mm), the
adhesion properties on a wet road are
sharply reduced. Depending upon the weather and/or road
surface (conditions), the tire traction var-
ies widely.
Specified tire inflation pressures must be
maintained. This applies particularly if
the tires are subject to high loads (e.g.
high speeds, heavy loads, high ambient
temperatures). G
WARNING
Do not drive with a flat tire. A flat tire will
affect your ability to steer or brake and may
cause you to lose control of the vehicle.
Continued driving with a flat tire or driv-
ing at high speed with a flat tire will cause
excessive heat build-up and possibly a
fire.
For more information, see “Tires and
wheels” (Y page 127). Hydroplaning
Depending on the depth of the water layer
on the road, hydroplaning may occur
resulting in a loss of control, even at low
speeds and with new tires. Reduce vehicle
speed, avoid track grooves in the road and
apply brakes cautiously when it is raining. Tire traction
The safe speed on a wet, snow covered or icy
road is always lower than on a dry road.
You should pay particular attention to the
condition of the road whenever the outside
temperatures are close to the freezing
point. G
WARNING
If ice has formed on the road, tire traction
will be substantially reduced. Under such
weather conditions, drive, steer and brake
with extreme caution.
smart recommends winter tires
(Y page 146) with a minimum tread depth of 150
Driving instructions>> Operation.

Accordingly, when the low tire pressure telltale illuminates, you should stop and check your
tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly
underinflated tire causes the tire to overheat and can lead to tire failure.
Underinflation also reduces fuel efficiency and tire tread life, and may affect the vehicle’s
handling and stopping ability. Please note that the TPMS is not a substitute for proper tire
maintenance, and it is the driver’s responsibility to maintain correct tire pressure, even
if underinflation has not reached the level to trigger illumination of the TPMS low tire
pressure telltale.
Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when
the system is not operating properly. The TPMS malfunction indicator is combined with the
low tire pressure telltale. When the system detects a malfunction, the telltale will flash for
approximately 1 minute and then remain continuously illuminated.
This sequence will continue upon subsequent vehicle start-ups as long as the malfunction
exists. When the malfunction indicator is illuminated, the system may not be able to detect
or signal low tire pressure as intended.
TPMS malfunctions may occur for a variety of reasons, including the installation of incom-
patible replacement or alternate tires or wheels on the vehicle that prevent the TPMS from
functioning properly. Always check the TPMS malfunction telltale after replacing one or
more tires or wheels on your vehicle to ensure that the replacement or alternate tires and
wheels allow the TPMS to continue to function properly. Display messages Possible causes/consequences and
0050 0050Solutions 0046
Danger: Ice Danger: Ice
(Canada only) The outside temperature is below 3
¥. The road may be icy.
X Adjust your driving style to the prevailing road and weather
conditions.
X Confirming message: Press the OK button on the control lever
briefly (Y page 83). G
WARNING
The display message Danger: Danger:Ice
Iceis not designed as an ice-warning device and is therefore
unsuitable for that purpose.
Indicated temperatures just above the freezing point do not guarantee that the road surface
is free of ice. The road may still be icy, especially in wooded areas or on bridges. Your
vehicle could start to skid if you do not adjust your driving style accordingly.
Therefore, always adjust your driving style to the prevailing road and weather conditions. Display messages
165>> Practical hints. Z

As an added safety feature, your vehicle has been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire pressure telltale when one or more of your tires
is significantly underinflated.
Accordingly, when the low tire pressure telltale illuminates, you should stop and check your
tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly
underinflated tire causes the tire to overheat and can lead to tire failure.
Underinflation also increases energy consumption, reduces tire tread life, and may affect
the vehicle’s handling and stopping ability. Please note that the TPMS is not a substitute
for proper tire maintenance, and it is the driver’s responsibility to maintain correct tire
pressure, even if underinflation has not reached the level to trigger illumination of the
TPMS low tire pressure telltale.
Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when
the system is not operating properly. The TPMS malfunction indicator is combined with the
low tire pressure telltale. When the system detects a malfunction, the telltale will flash for
approximately 1 minute and then remain continuously illuminated.
This sequence will continue upon subsequent vehicle start-ups as long as the malfunction
exists. When the malfunction indicator is illuminated, the system may not be able to detect
or signal low tire pressure as intended.
TPMS malfunctions may occur for a variety of reasons, including the installation of incom-
patible replacement or alternate tires or wheels on the vehicle that prevent the TPMS from
functioning properly. Always check the TPMS malfunction telltale after replacing one or
more tires or wheels on your vehicle to ensure that the replacement or alternate tires and
wheels allow the TPMS to continue to function properly. 174
What to do if ...>> Practical hints.

Wheel change
Preparing the vehicle
X Park the vehicle on a hard, flat surface
when possible.
X Turn on the hazard warning flasher.
X Turn the steering wheel so that the front
wheels are in a straight-ahead position.
X Engage the parking brake.
X Move the gear selector lever to park
position P.
X Switch off the drive system.
X Have any passenger exit the vehicle at a
safe distance from the roadway. Removing the wheel
G
WARNING
When jacking up the vehicle, only use a
suitable jack. Observe the manufacturer’s
safety instructions.
The jack must be designed for jacking up
this vehicle at the jack take-up brackets
built into both sides of the vehicle.
The jack is intended only for lifting the
vehicle briefly for wheel changes. It is not
suited for performing maintenance work
under the vehicle. To help avoid personal
injury, use the jack only to lift the vehicle
during a wheel change.
Never get beneath the vehicle while it is
supported by the jack. Keep hands and feet
away from the area under the lifted vehicle.
Always lower the vehicle onto sufficient
capacity jackstands before working under
the vehicle.
Always firmly engage the parking brake and
block the wheels with wheel chocks or other
sizeable objects before raising the vehi-
cle with the jack. Do not release the parking
brake while the vehicle is raised.
Make sure the ground on which the vehicle
is standing and where you place the jack is solid, level and not slippery. If necessary,
use a large underlay. On slippery surfaces,
such as tiled floors, you should use a non-
slip underlay, for example a rubber mat.
Do not use wooden blocks or similar objects
to support the jack. Otherwise the jack may
not be able to achieve its load-bearing
capacity if it is not at its full height.
The jack must always be vertical when in
use. Always try to use the jack on level sur-
face. If you do not position the jack cor-
rectly, the vehicle can fall off the jack and
seriously or fatally injure you or others.
Never switch on the drive system when the
vehicle is raised.
Also observe the notes on the jack.
X Make sure to have a suitable jack 10
, wheel
wrench 10
and wheel chock 10
.
Contact an authorized electric drive
smart center for information on which
jack and wheel wrench are required.
X Prepare the vehicle as described
(Y page 195).
X Make sure the surface is level.
Prevent the vehicle from rolling away by
blocking wheels with wheel chocks or other
sizeable objects:
X Place one wheel chock or other sizeable
object in front of and another wheel
chock or other sizeable object behind
the wheel that is diagonally opposite to
the wheel being changed.
X On wheel to be changed, loosen but do not
yet remove the wheel bolts (approx-
imately one full turn with wheel wrench).
! Only position the jack on the desig-
nated take-up brackets.
You must not position the jack under the
high-voltage battery. Otherwise, the
high-voltage battery could be damaged.
10 Not included and not available as factory equipment. Wheel change
195>> Practical hints. Z

G
WARNING
Have the tightening torque checked after
changing a wheel. 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 131). Batteries
Notes on the vehicle’s electrical sys-
tem
The vehicle’s electrical system provides
power for the electric drive and all elec-
trical 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 199).
The 12 volt battery should always be suffi-
ciently 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 fre-
quently.
When replacing the battery, always use bat-
teries approved by smart. For information,
contact an authorized electric drive smart
center. If you do not intend to operate your 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 pre-
cautions when handling automotive batter-
ies. 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 face-
guard. 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. G
WARNING
Failure to follow these instructions can
result in severe injury or death.
Observe all safety instructions and pre-
cautions when handling automotive batter-
ies.
Never lean over batteries while connect-
ing, you might get injured. Batteries
197>> Practical hints.
* optional Z

Battery fluid 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 chemi-
cals 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 hydro-
gen 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 con-
nect the positive terminal first, fol-
lowed 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. Oth-
erwise, electronic components could be
severely damaged.
Have the battery checked regularly at an
authorized electric drive smart center. Refer to Maintenance Booklet for main-
tenance intervals or contact an author-
ized electric drive smart center for fur-
ther information.
! Never invert the terminal connections! Notes on the high‑voltage battery
Have work on the high-voltage battery per-
formed by an authorized electric drive
smart center only. Observe the safety notes
on (Y page 16) as well as the notes on the 12-
volt battery (Y page 197). G
WARNING
The electrolyte of the high-voltage bat-
tery, 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 196).
! Only position the jack on the desig-
nated take-up brackets.
You must not position the jack under the
high-voltage battery. Otherwise, the
high-voltage battery could be damaged. 198
Batteries>> Practical hints.

Parts service
The “Technical data” section provides the
necessary technical data for your vehicle.
Genuine smart Parts are subjected to strin-
gent quality inspections. Each part has
been specifically developed, manufac-
tured 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 dura-
bility 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 electric drive smart
center will exchange or repair any defec-
tive 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, Massa-
chusetts, 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
(Canada only), have an authorized electric
drive smart center arrange for a replace-
ment. 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 sys-
tem and high-voltage system electronics
and components performed by a qualified
specialist, e.g. at an authorized electric
drive smart center. In particular, work rel-
evant to safety or on safety related systems
must be carried out at a qualified special-
ist workshop with expert knowledge of
electric drive vehicles.
! Always have maintenance work on drive
system and high-voltage system elec-
tronics 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. 212
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 pos-
sible performance in conjunction with
the driving safety systems on your vehi-
cle 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 dimen-
sional 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 man-
ufacturer’s maintenance recommenda-
tion included with vehicle. Mobility
Your vehicle is equipped with a tire repair
kit (Y page 187). In case of a flat tire, it
enables you to drive to the nearest author-
ized 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. 216
Rims and tires>> 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/anti-
freeze, 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 cor-
rosion protection.
! Add premixed coolant solution only.
Adding water and MB 325.0 Anticorro-
sion/Antifreeze separately from each
other, could cause drive system damage
not covered by the smart Limited War-
ranty.
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 cor-
rosion 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 solu-
tion 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 protec-
tion, the solution must be at least 50% anti-
corrosion/antifreeze (equivalent to freeze
protection to approximately -35¦
[-37¥]).
If you use a solution that is more than 55%
anticorrosion/antifreeze (freeze protec-
tion to approximately -49
¦[(-45 ¥]), the
drive system and battery temperature will
increase due to the lower heat transfer
capability of the solution. Therefore, do
not use more than this amount of anticor-
rosion/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 informa-
tion 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. 6.9 US qt
(6.5 l)Service fluids and capacities
219>> Technical data. Z