tire size SMART FORTWO COUPE ELECTRIC DRIVE 2013 Owners Manual

Storage compartments
....................102
Coin holder ............................. 102
Door pockets ........................... 102
Drawer ................................... 103
Glove box ................................ 103
in the tailgate ........................ 104
Parcel nets ............................. 103
Storage tray in center console ....103
Storage trays next to steering
whee l..................................... 102
Storing tires ............................... 132
Sun screen ................................... 105
Sun visors ................................... 105T
Tailgate Closin g............................... 53, 55
Opening .............................. 52, 54
Tail lamps ................................... 174
Technical data Brake fluid ............................. 212
Coolant .................................. 213
Dimensions and weights ............ 209
Identification label s............... 208
Rims and tire s......................... 210
Service fluids and capacities .....211
Windshield/rear window washer
system ................................... 212
Temperature
Coolant .................................. 146
Interior temperature .................. 97
Outside ................................... 83
Tether anchorage points
see Children in the vehicle
Thorax-pelvis side air bags .............36
Tightening torque Wheels ................................... 133
TIN (Tire Identification
Number) ................................. 136, 139
Tire and Loading Information
placard ....................................... 127
Tire and loading terminology ..........137
Tire Identification Number see TIN Tire inflation pressure
Checking ................................ 124
Importan tnotes on .................... 124
Placard on driver’s door B-
pillar .................................... 127
Tire labeling ............................... 133
Tire load rating ........................... 139
Tire ply composition and material
used ........................................... 139
Tire Pressure Monitoring System
(TPMS) ........................................ 125
Tire repair kit ....................... 154, 180
Tires .................................... 122, 210
Air pressure ........................... 122
Care and maintenance ................131
Cleaning ................................ 132
Direction of rotation, spinning ... 131
Driving instructions ................143
Flat tire ................................. 180
Important notes on tire
inflation pressure ...................124
Inflation pressure ....................124
Information placard .................. 127
Inspection .............................. 131
Labeling ................................ 133
Load rating ............................. 139
Ply composition and material
used ...................................... 139
Problems under-/overinflation ...124
Retreads ................................. 122
Rims and tires (technical data) ...210
Rotatio n................................. 133
Service life ............................ 131
Sizes ..................................... 210
Snow chain s............................ 140
Speed rating ................ 135, 139, 145
Storing .................................. 132
Temperature ...................... 124, 133
Terminology ............................ 137
Tire Identification Number ..136, 139
Tire Pressure Monitoring
System (TPMS) .......................... 125
Traction ..................... 132, 139, 144
Tread ..................................... 139
Tread depth ....................... 131, 140
Treadwear indicators ..........131, 140
Vehicle maximum load on ...........140 10
Index

Wheel change
........................... 188
Winte rtires ...................... 140, 210
Tire speed rating ....................135, 139
Top tether see Children in the vehicle
Total load limit ........................... 139
Tow-away alarm ............................. 47
Towing ........................................ 196
Traction ................................ 139, 144
Transmission Driving tips ............................. 78
Hill-start assist system ..............78
Shifting procedure ....................77
Transmission position indicator ....... 81
Transmitting power values ..............207
Traveling abroad .......................... 146
Tread (tires) ................................ 139
Tread depth (tires) ..................131, 140
Treadwear indicators (tires) .....131, 140
Turning off the engine ....................77
Turn signal lamps ......................... 173
Turn signals ................................. 64
Indicator lamps ....................... 165 U
Uniform Tire Quality Grading
Standards .............................. 132, 140
Unlocking the vehicle .....................50
Manually ................................. 170
USB socket .................................... 93V
Vehicle Bulbs ..................................... 172
Care ...................................... 147
Identification Number (VIN) ...... .209
Locking/unlockin g.................... 50
Modifications and alterations,
Operating safety ....................... 15
Towin g................................... 196
Unlocking/locking manually .......170
Vehicle Identification Number
(VIN) .......................................... 209
Vehicle lighting ........................... .62Vehicle loading
Instructions ............................ 104
Load limit .............................. 129
Roof rack ................................ 104
Terminology ............................ 137
Vehicle maximum load on the tire ....140
Vehicle specification ...................209
Vehicle washing see Vehicle care W
Warning signals Brake pads .............................. 170
Door ...................................... 169
Lighting ................................ 169
Parking .................................. 170
Parking brake .......................... 169
Seat belt reminder system ..... 161, 169
Warranty coverage ........................ 206
Warranty information ......................12
Washer fluid Mixing ratio ........................... 212
Refillin g............................... 120
Wipin g.................................... 68
Washer jet nozzles .........................1 80
Washing the vehicle ......................147
Wheel change ............................... 188
Wheels, sizes ............................... 210
Wheels, Tires and .......................... 122
Where will Ifind...?
First-aid kit ........................... 154
Tire repair kit ........................ 154
Window curtain air bags ..................36
Windshield Washer fluid ....................... 68, 212
Wipers .................................... 67
Windshield wipers .......................... 67
Adjusting washer jet nozzles ......180
Rain-ligh tsensor ...................... 67
Replacing wiper blades .............178
Winter driving
Driving instructions ................145
Snow chain s............................ 140
Tires ..................................... 140
Winter tires ........................... 140, 210 Index
11

could jeopardize the user’s safety or the
safety of others.
! Because the ESP ®
operates
automatically, the ignition must be
switched off when the parking brake is
being tested on a brake test
dynamometer. Active braking action
through the ESP ®
may otherwis eseriously
damage the brake system which is not
covered by the smart Limited Warranty.
i The ESP ®
will only function properly if
you use wheels of the recommended tire
size (Y page 210). Hydraulic brake assistant
The hydraulic brake assistant operates in
emergency situations. If you apply the
brakes very quickly, the hydraulic brake
assistant automatically provides full
brake boost, thereby potentially reducing
the braking distance.
X Apply continuous full braking pressure
until the emergency braking situation is
over.
The ABS will prevent the wheels from
locking.
When you release the brake pedal, the
brakes function again as normal. The
hydraulic brake assistant is then
deactivated. G
WARNING
When the hydraulic brake assistant is
malfunctioning, the brake system is still
functioning normally, but without the
additional brake boost that would normally
be provided during an emergency braking
maneuver. Therefore, the braking distance
may increase. G
WARNING
The hydraulic brake assistant cannot
prevent the natural laws of physics from
acting on the vehicle, nor can it increase braking efficiency beyond that afforded by
the condition of the vehicle brakes and
tires or the traction afforded. The
hydraulic brake assistant cannot prevent
accidents, including those resulting from
excessive speed in turns, following
another vehicle too closely, or
hydroplaning. Only a safe, attentive, and
skillful driver can prevent accidents. The
capabilities of a hydraulic brake assistant
equipped vehicle must never be exploited
in a reckless or dangerous manner which
could jeopardize the user’s safety or the
safety of others. Activating the hazard warning flasher
after an emergency braking maneuver
If you bring the vehicle to a complete stop
by strongly braking at a speed of more than
43 mph (70 km/h), the hazard warning
flasher comes on automatically as soon as
the vehicle is at a standstill. The hazard
warning flasher will remain on until it is
switched off using the hazard warning
flasher switch (Y page 66) or until the
speed of the vehicle has exceeded 6mph
(10 km/h). Anti-theft systems
Electronic immobilizer
The electronic immobilizer prevents
unauthorized persons from starting your
vehicle.
When leaving the vehicle, always take the
key with you and lock the vehicle. The drive
system can be switched on by anyone with a
key that is left inside the vehicle.
X Activating: Remove the key from the
starter switch.
X Deactivating: Insert the key in the
starter switch.
X Turn the key to starter switch position 1.46
Anti-theft systems>> Safety.

Tires and wheels
Safety notes
Contact an authorized electric drive smart
center for information on tested and
recommended rims and tires for summer
and winter operation. They can also offer
advice concerning tire service and
purchase. G
WARNING
Replace rims or tires with the same
designation, manufacturer and type as
shown on the original part. For further
information contact an authorized electric
drive smart center. If incorrectly sized
rims and tires are mounted, the wheel
brakes or suspension components can be
damaged. Also, the operating clearance of
the wheels and the tires may no longer be
correct. G
WARNING
Worn, old tires can cause accidents. If the
tire tread is worn to minimum tread depth,
or if the tires have sustained damage,
replace them.
When replacing rims, only use genuine
smart wheel bolts specified for the
particular rim type. Failure to do so can
result in the bolts loosening and possibly
an accident.
Retreaded tires are not tested or
recommended by smart, since previous
damage cannot always be recognized on
retreads. The operating safety of the
vehicle cannot be assured when such tires
are used. G
WARNING
If you feel a sudden significant vibration
or ride disturbance, or you suspect that
possible damage to your vehicle has
occurred, you should turn on the hazard
warning flashers, carefully slow down, and
drive with caution to an area which is a safe
distance 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 authorized electric drive smart
center or tire dealer for repairs.
G
WARNING
Do not drive with a flat tire. A flat tire
affects the ability to steer or brake the
vehicle. You could lose control of the
vehicle. Continued driving with aflat tire
or driving at high speed with a flat tire
will cause excessive heat build-up and
possibly a fire.
Modifications to the brake system and
wheels and the use of brake dust rings are
not permissible. Important guidelines
R Only use sets of tires and rims of the same
type and make.
R Tires must be of the correct size for the
rim.
R Break in new tires for approximately
60 miles (100 km) at moderate speeds.
R Regularly check the tires and rims for
damage. Dented or bent rims can cause
tire pressure loss and damage to the tire
beads.
R If vehicle is heavily loaded, check tire
inflation pressure and correct as
required.
R Do not allow your tires to wear down too
far. Adhesion properties on wet roads are
sharply reduced at tread depths of less
than 1
/ 8 in (3 mm). Recommended tire inflation pressure
G
WARNING
Follow recommended tire inflation
pressures. 122
Tires and wheels>> Operation.

Checking tire inflation pressure
manually
Follow the steps below to achieve correct
tire inflation pressure:
X Remove the cap from the valve on one tire.
X Firmly press a tire gauge onto the valve.
X Read the tire inflation pressure on tire
gauge and check against the
recommended tire inflation pressure on
the Tire and Loading Information
placard on the driver’s door B‑pillar
(Y page 128). If necessary, add air to
achieve the recommended tire inflation
pressure.
X If you have overfilled the tire, release
tire inflation pressure by pushing the
metal stem of the valve with e.g. a tip of
a pen. Then recheck the tire inflation
pressure with the tire gauge.
X Install the valve cap.
X Repeat this procedure for each tire.
Tire Pressure Monitoring System
(TPMS)* Your vehicle may be equipped with a
Tire
Pressure Monitoring System (TPMS).
It monitors the tire inflation pressure in
all four tires .Awarning is issued to alert
you to a decrease in pressure in one or more
of the tires.
The Tire Pressure Monitoring System
(TPMS) is equipped with a combination low
tire pressure/TPMS malfunction telltale in
the instrument cluster. Depending on how
the telltale illuminates, it indicates a low
tire pressure condition or a malfunction in
the TPMS system itself:
R If the telltale illuminates continuously,
one or more of your tires is significantly
underinflated. There is no malfunction
in the TPMS.
R If the telltale flashes for 60 seconds and
then stays illuminated, the TPMS system
itself is not operating properly. The TPMS only functions on wheels that are
equipped with the proper electronic
sensors. G
WARNING
The TPMS does not indicate a warning for
wrongly selected inflation pressures.
Always adjust tire inflation pressure
according to the Tire and Loading
Information placard on the driver’s door
B‑pillar.
The TPMS is not able to issue a warning due
to a sudden dramatic loss of pressure (e.g.
tire blowout caused by a foreign object). In
this case bring the vehicle to a halt by
carefully applying the brakes and avoiding
abrupt steering maneuvers. G
WARNING
Each tire should be checked monthly when
cold and inflated to the inflation pressure
recommended by the vehicle manufacturer
on the Tire and Loading Information
placard. If your vehicle has tires of a
different size than the size indicated on
the Tire and Loading Information placard,
you should determine the proper tire
inflation pressure for those tires.
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 Tires and wheels
125>> Operation.
* optional Z

X
Using the Tire and Loading Information
placard on the driver’s door B‑pillar
(Y page 128), make sure the tire
inflation pressure of all four tires is
correct.
i Restart the TPMS after adjusting the
tire inflation pressure to the inflation
pressure recommended for the vehicle
operating condition. Tire pressure
should only be adjusted on cold tires.
Observe the recommended tire inflation
pressure on the Tire and Loading
Informatio nplacard on the driver’s door
B‑pillar (Y page 128). X
Press Restarting TPMS button 0002.
The combination low tire pressure/TPMS
malfunction telltale in the instrument
cluster (Y page 21) flashes for
approximately 5 seconds and then goes
out.
After driving a few minutes the system
verifies that the current tire inflation
pressures are within the system’s
specified range. Afterwards the current
tire inflation pressures are accepted as
reference pressures and then monitored. Maximum tire inflation pressure
G
WARNING
Never exceed the max. tire inflation
pressure. Follow recommended tire
inflation pressures. Do not underinflate tires. Underinflated
tires wear excessively and/or unevenly,
adversely affect handling and energy
consumption, and are more likely to fail
from being overheated.
Do not overinflate tires. Overinflated
tires can adversely affect handling and
ride comfort, wear unevenly, increase
stopping distance, and result in sudden
deflation (blowout) because they are more
likely to become punctured or damaged by
road debris, potholes etc. i
For illustration purposes only. Actual
data on tires are specific to each vehicle
and may vary from data shown in above
illustration.
This is the maximum permissible tire
inflation pressure 0002for the tire.
Always follow the recommended tire
inflation pressure (Y page 122) for proper
tire inflation. Loading the vehicle
Two labels on your vehicle show how much
weight it may properly carry.
1) The Tire and Loading Information placard can be found on the driver’s
door B‑pillar. This placard tells you
important information about the
number of people that can be in the
vehicle and the total weight that can be
carried in the vehicle. It also contains
information on the proper size and Tires and wheels
127>> Operation. Z

that can be in the vehicle. The Tire and
Loading Information placard showing
seating capacity 0002is located on the
driver’s door B‑pillar (Y page 128).
i Data shown on Tire and Loading
Information placard example are for
illustration purposes only .Seating
capacity data are specific to each
vehicle and may vary from data shown in
the following illustration. Refer to Tire
and Loading Information placard on
vehicle for actual data specific to your
vehicle.
Steps for determining correct load limit
The following steps have been developed as
required of all manufacturers under
Title 49, Code of U.S. Federal Regulations,
Part 575 pursuant to the “National Traffic
and Motor Vehicle Safety Act of 1966”.
X Step 1: Locate the statement “The
combined weight of occupants and cargo
should never exceed XXXX kg or
XXXX lbs.” on your vehicle’s Tire and
Loading Information placard.
X Step 2: Determine the combined weight of
the driver and passenger that will be
riding in your vehicle.
X Step 3: Subtract the combined weight of
the driver and passenger from
XXXX kilograms or XXXX lbs.
X Step 4: The resulting figure equals the
available amount of cargo and luggage
load capacity. For example, if the “XXXX”
amount equals 540 lbs and there will be
one 150 lbs passenger in your vehicle, the
amount of available cargo and luggage
load capacity is 390 lbs
(540 lbs - 150 lbs = 390 lbs).
X Step 5: Determine the combined weight of
luggage and cargo being loaded on the
vehicle. That weight may not safely
exceed the available cargo and luggage
load capacity calculated in step 4. i
The maximum cargo compartment load
is 110 lbs (50 kg).
The following table shows examples on how
to calculate total and cargo load
capacities with varying seating
configurations and number and size of
occupants. The following examples use a
load limit of 540 lbs. This is for
illustration purposes only . Make sure you
are using the actual load limit for your
vehicle stated on the vehicle’s Tire and
Loading Information placard (Y page 128).
The higher the weight of all occupants, the
less cargo and luggage load capacity is
available. Tires and wheels
129>> Operation. Z

The traction grades, from highest to
lowest, are AA, A, B, and C. Those grades
represent the tire’s ability to stop on wet
pavement as measured under controlled
conditions on specified government test
surfaces of asphalt and concrete. A tire
marked C may have poor traction
performance.
Temperature G
WARNING
The temperature grade for this tire is
established for a tire that is properly
inflated and not overloaded. Excessive
speed, underinflation, or excessive
loading, either separately or in
combination, can cause excessive heat
build-up and possible tire failure.
The temperature grades are A (the highest),
B, and C, representing the tire’s resistance
to the generation of heat and its ability to
dissipate heat when tested under
controlled conditions on a specified
indoor laboratory test wheel. Sustained
high temperature can cause the material of
the tire to degenerate and reduce tire life,
and excessive temperature can lead to
sudden tire failure. The grade C
corresponds to a level of performance
which all passenger car tires must meet
under the Federal Motor Vehicle Safety
Standard No. 109. Grades B and A represent
higher levels of performance on the
laboratory test wheel than the minimum
required by law. Rotating tires
G
WARNING
Do not rotate front and rear wheels as they
have different dimensions, e.g. rim size,
wheel offset etc. Otherwise, the handling
can be affected and you could endanger
yourself and others. Thoroughly clean the mounting face of the
wheels and brake discs, i.e. the inner side
of the wheels/tires each time the wheels/
tires are changed. Check for and ensure
proper tire inflation pressure. G
WARNING
Have the tightening torque checked after
changing awheel. Wheels could become
loose if not tightened with a torque of
81 lb‑ft (110 Nm).
Only use genuine smart wheel bolts
specified for your vehicle’s rims.
For information on wheel change, see “Flat
tire” (Y page 180). Tire labeling
Besides tire name (sales designation) and
manufacturer name, a number of markings
can be found on a tire.
Following are some explanations for the
markings on your vehicle’s tires: 0002
Uniform Quality Grading Standards
(Ypage 132)
0003 DOT, Tire Identification Number (TIN)
(Ypage 136)
002B Maximum tire load (Y page 130)
002A Maximum tire inflation pressure
(Ypage 127) Tires and wheels
133>> Operation. Z

0028
Manufacturer
0029 Tire ply material (Y page 137)
0018 Tire size designation, load and speed
rating (Y page 134)
0019 Load identification (Y page 136)
001A Tire name
i For illustration purposes only. Actual
data on tires are specific to each vehicle
and may vary from data shown in above
illustration.
For more information, see “Rims and
tires” (Y page 210).
Tire size designation, load and speed
rating 0002
Tire width
0003 Aspect ratio in %
002B Radial tire code
002A Rim diameter
0028 Tire load rating
0029 Tire speed rating
i For information purposes only. Actual
data on tires are specific to each vehicle
and may vary from data shown in above
illustration.
General:
Depending on the design standards used,
the tire size molded into the sidewall may
have no letter or aletter preceding the tire
size designation. No letter preceding the size designation
(as illustrated above): Passenger car tire
based on European design standards.
Letter “P” preceding the size designation:
Passenger car tire based on U.S. design
standards.
Letter “LT” preceding the size
designation: Light Truck tire based on U.S.
design standards.
Letter “T” preceding the size designation:
Temporary spare tires which are high
pressure compact spares designed for
temporary emergency use only.
Tire width
Tire width 0002indicates the nominal tire
width in mm.
Aspect ratio
Aspect ratio 0003is the dimensional
relationship between tire section height
and section width and is expressed as a
percentage. The aspect ratio is arrived at
by dividing section height by section
width.
Tire code
Tire code 002Bindicates the tire
construction type. The “R” stands for radial
tire type. Letter “D” means diagonal or
bias ply construction; letter “B” means
belted-bias ply construction.
At the tire manufacturer’s option, any tire
with a speed capability above 149 mph
(240 km/h) can include a “ZR” in the size
designation (for example: 245/40 ZR 18).
For additional information, see “Tire
speed rating” (Y page 135).
Rim diameter
Rim diameter 002Ais the diameter of the
bead seat, not the diameter of the rim edge.
Rim diameter is indicated in inches (in). 134
Tires and wheels>> Operation.

Tire load rating
G
WARNING
The tire load rating must always be at least
half of the GAWR of your vehicle. Otherwise,
tire failure may result and cause an
accident and/or serious personal injury to
you or others.
Always replace rims and tires with the same
designation, manufacturer and type as
shown on the original part. G
WARNING
Do not overload the tires by exceeding the
specified load limit as indicated on the
Tire and Loading Information placard on
the driver’s door B‑pillar. Overloading the
tires can overheat them, possibly causing
a blowout. Overloading the tires can also
result in handling or steering problems, or
brake failure.
Tire load rating 0028is a numerical code
associated with the maximum load a tire
can support.
For example, a load rating of 91
corresponds to a maximum load of 1356 lbs
(615 kg) the tire is designed to support.
See also “Maximum tire load” (Y page 130)
where the maximum load associated with
the load index is indicated in kilograms
and lbs.
For additional information on tire load
rating, see “Load identification”
(Y page 136).
Tire speed rating G
WARNING
Even when permitted by law, never operate
a vehicle at speeds greater than the
maximum speed rating of the tires.
Exceeding the maximum speed for which
tires are rated can lead to sudden tire
failure, causing loss of vehicle control and
possibly resulting in an accident and/or
personal injury and possible death, for you
and for others. Regardless of the tire speed rating, local
speed limits should be obeyed. Use prudent
driving speeds appropriate to prevailing
conditions.
Tire speed rating 0029indicates the
approved maximum speed for the tire.
Summer tires Index Speed rating
Q up to 100 mph (160 km/h)
R up to 106 mph (170 km/h)
S up to 112 mph (180 km/h)
T up to 118 mph (190 km/h)
H up to 130 mph (210 km/h)
V up to 149 mph (240 km/h)
W up to 168 mph (270 km/h)
Y up to 186 mph (300 km/h)
ZR...Y above 186 mph (300 km/h)
ZR...(Y) above 186 mph (300 km/h)
ZR above 149 mph (240 km/h)
R
At the tire manufacturer’s option, any
tire with a speed capability above
149 mph (240 km/h) can include a “ZR” in
the size designation (for example:
245/40 ZR18). To determine the maximum
speed capability of the tire, the service
description for the tire must be referred
to.
The service description is comprised of
tire load rating 0028and tire speed rating
0029.
If your tire includes “ZR” in the size
designation and no service description
is given, the tire manufacturer must be
consulted for the maximum speed
capability.
If a service description is given, the
speed capability is limited by the speed Tires and wheels
135>> Operation. Z