tire type SMART FORTWO COUPE 2012 Owners Manual

Auxiliary power outlet
The auxiliary power outlet supplies power
to the following electrical accessories
when the key is turned to starter switch
position 1:
R the cigarette lighter*, available in
conjunction with the ashtray*
R the electric air pump, available in
conjunction with the tire repair kit*
R other consumers which operate up to a
maximum of
60 W
! The auxiliary power outlet can
accommodate 12V DC electrical
accessories designed for use with the
standard “cigarette lighter” plug type.
Keep in mind, however, that connecting
accessories to the auxiliary power outlet
(for example extensive connecting and
disconnecting, or using plugs that do not
fit properly) can damage the auxiliary
power outlet. With the auxiliary power
outlet damaged, the cigarette lighter*
may no longer be able to be placed in the
heating (pushed-in) position, or may pop
out before it is hot enough.
The auxiliary power outlet is located in the
lower center console. Auxiliary power outlet
X
Turn the key to starter switch position 1.
! Please observe the safety instructions
given in the respective operating
instructions. Please note that
R
if using the auxiliary power outlet the
maximum current drawn may not exceed
5 A or 60 W
R the electric air pump* can be connected
to
the auxiliary power outlet for the time
it takes to inflate the tire without any
problem
R the vehicle battery will discharge when
current is drawn.114
Useful features
>> Controls.
* optional

?
Fuel type label
A Holder
X Turn off the engine.
X Remove the key from the starter switch.
X Open the fuel filler flap by pulling at the
point indicated by arrow :.
X Turn fuel filler cap = counterclockwise
and hold on to it until possible pressure
is released.
X Take off fuel filler cap =.
! The fuel filler cap is tethered to the
fuel filler flap. Do not drop the fuel
filler cap. It could damage the vehicle
paint finish.
X Insert fuel filler cap = in direction of
arrow ; into holder A on the inside of
the fuel filler flap.
X Fully insert filler nozzle unit and
refuel.
X Only fill your tank until the filler nozzle
unit

cuts out — do not top off or overfill .G
WARNING
Overfilling of the fuel tank may create
pressure in the system which could cause a
gas discharge. This could cause the gas to
spray

back out when removing the fuel pump
nozzle, which could cause personal injury.
X Replace fuel filler cap =.
X Turn fuel filler cap = clockwise until
the handle grip overturns.
i Make sure to close the fuel filler flap
before locking the vehicle as the fuel
filler flap locking pin prevents closing
after you have locked the vehicle.
X Close the fuel filler flap.
You should hear the latch close shut.
i Only use premium unleaded gasoline
with a minimum Posted Octane Rating of
91 (average of 96 RON/86 MON).
Information on gasoline quality can
normally be found on the fuel pump. Please contact gas station personnel in
case

labels on the pump cannot be found.
For more information on gasoline, see
“Premium unleaded gasoline”
(Y page 221) and “Fuel requirements”
(Y page 222), or contact an authorized
smart center. Check regularly and before a long trip
For information on quantities and
requirements of operating agents, see
“Service fluids and capacities”
(Y page 218).
Check the following:
R Engine oil level ( Y page 118)
R Tire inflation pressure ( Y page 126)
R Coolant level ( Y page 122)
R Vehicle lighting ( Y page 178)
R Windshield washer system (Y page 122)
R Brake fluid (Y page 123) Engine compartment
Engine compartment cover
Open the engine compartment cover to
check

the engine oil level and if necessary,
to add engine oil. G
WARNING
High outside temperature, stop-and-go
traffic, driving on long uphill grades or
driving

at high engine speed may increase
the temperature in the engine
compartment. Therefore, the engine
compartment cover and parts in the area
around the engine compartment cover may
be hot. Parts of the engine can become very
hot. To prevent burns, let the engine cool
off completely before touching the engine
compartment cover, parts in the area
around the engine compartment cover, and
parts of the engine. Engine compartment
117
>> Operation. Z

The brake fluid level is correct when it
is between the minimum mark and the
maximum mark.
R
If the brake fluid level has fallen
slightly below the minimum mark,
drive to an authorized smart center.
R If the brake fluid level has fallen
significantly below the minimum
mark, call Roadside Assistance or an
authorized smart center.
X Remount the service flap and close it
(Y page 120). Tires and wheels
Safety notes
Contact an authorized 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 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 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 a flat 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.124
Tires and wheels
>> Operation.

A
Manufacturer
B Tire ply material ( Y page 139)
C Tire size designation, load and speed
rating (Y page 136)
D Load identification (Y page 138)
E 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 217).
Tire size designation, load and speed
rating :
Tire width
; Aspect ratio in %
= Radial tire code
? Rim diameter
A Tire load rating
B 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 a letter 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 : indicates the nominal tire
width in mm.
Aspect ratio
Aspect ratio ; is 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 = indicates 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 137).
Rim diameter
Rim diameter ? is the diameter of the
bead seat, not the diameter of the rim edge.
Rim diameter is indicated in inches (in). 136
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 A is 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 1 356 lbs
(615 kg) the tire is designed to support.
See also “Maximum tire load” ( Y page 132)
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 138).
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 B indicates 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 A and tire speed rating
B.
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
137
>> Operation. Z

The TIN is a unique identifier which
facilitates
efforts by tire manufactures to
notify purchasers in recall situations or
other safety matters concerning tires and
gives purchasers the means to easily
identify such tires.
The TIN is comprised of “Manufacturer’s
identification mark” ;, “Tire size” =,
“Tire type code” ?, and “Date of
manufacture” A.
i For illustration purposes only. Actual
data on tires are specific to each vehicle
and may vary from data shown in above
illustration.
DOT (Department of Transportation) Tire branding symbol
:
which denotes the
tire meets requirements of the U.S.
Department of Transportation.
Manufacturer’s identification mark Manufacturer’s identification mark
;
denotes the tire manufacturer.
New tires have a mark with two symbols.
Retreaded tires have a mark with four
symbols. For more information on
retreaded tires ( Y page 124).
Tire size Code = indicates the tire size. Tire type code Tire type code
? may, at the option of the
manufacturer, be used as a descriptive
code for identifying significant
characteristics of the tire.
Date of manufacture Date of manufacture
A
identifies the week
and year of manufacture.
The first two figures identify the week,
starting with “01” to represent the first
full week of the calendar year. The second
two figures represent the year.
For example, “3202” represents the 32nd
week of 2002. Tire ply material
i
For illustration purposes only. Actual
data

on tires are specific to each vehicle
and may vary from data shown in above
illustration.
This marking tells you about the type of
cord and number of plies in the
sidewall : and under the tread ;. Tire and loading terminology
Accessory weight The combined weight (in excess of those
standard items which may be replaced) of
automatic transmission, power steering,
power brakes, power windows, power seats, Tires and wheels
139
>> Operation. Z

Normal occupant weight
The number of occupants the vehicle is
designed to seat, multiplied by
68 kilograms (150 lbs).
Occupant distribution
The distribution of occupants in a vehicle
at their designated seating positions.
Production options weight
The combined weight of those installed
regular production options weighing over
5 lbs (2.3 kilograms) in excess of those
standard items which they replace, not
previously considered in curb weight or
accessory weight, including heavy duty
brakes,
ride levelers, roof rack, heavy duty
battery, and special trim.
PSI (Pounds per square inch) A standard unit of measure for air
pressure.
Recommended tire inflation pressure
The recommended tire inflation pressure
for

normal driving conditions is listed on
the Tire and Loading Information placard
located on driver’s door B‑pillar and
provides best handling, tread life and
riding comfort.
Rim A metal support for a tire or a tire and tube
assembly upon which the tire beads are
seated.
Sidewall
The portion of a tire between the tread and
the bead. TIN (Tire Identification Number) Unique identifier which facilitates
efforts by tire manufacturers to notify
purchasers in recall situations or other
safety matters concerning tires and gives
purchasers the means to easily identify
such tires. The TIN is comprised of
“Manufacturer’s identification mark”,
“Tire size”, “Tire type code” and “Date of
manufacture”.
Tire load rating
Numerical code associated with the
maximum load a tire can support.
Tire ply composition and material used
This indicates the number of plies or the
number of layers of rubber-coated fabric
in the tire tread and sidewall. Tire
manufacturers also must indicate the ply
materials in the tire and sidewall, which
include

steel, nylon, polyester, and others.
Tire speed rating Part of tire designation; indicates the
speed range for which a tire is approved.
Total load limit
Rated cargo and luggage load plus
68 kilograms (150 lbs) times the vehicle’s
designated seating capacity.
Traction
Force exerted by the vehicle on the road via
the tires. The amount of grip provided.
Tread
The portion of a tire that comes into
contact with the road. Tires and wheels
141
>> Operation. Z

Catalytic converter
Your smart is equipped with monolithic-
type catalytic converter, an important
element in conjunction with the oxygen
sensors to achieve substantial control of
the pollutants in the exhaust emissions.
Keep your vehicle in proper operating
condition by following our recommended
maintenance instructions as outlined in
your Maintenance Booklet. G
WARNING
The catalytic converter can become very
hot. Coming into contact with the catalytic
converter could result in burns.
Note the following:
R Do not remove the protective heat guards.
R Do not apply any underseal.
R As with any vehicle, do not idle, park, or
operate this vehicle in areas where
combustible materials such as grass,
hay, or leaves can come into contact with
the hot exhaust system, as these
materials could be ignited and cause a
vehicle fire.
! To prevent damage to the catalytic
converter, only use premium unleaded
gasoline in this vehicle.
Any noticeable irregularities in engine
operation should be repaired promptly.
Otherwise, excessive unburned fuel may
reach the catalytic converter, causing it
to overheat and potentially start a fire.
It is essential to observe the following
points, as there is otherwise a danger of
overheating and the catalytic converter
may be damaged.
R Fill up only with premium unleaded
gasoline. Even small quantities of
leaded gasoline can damage the catalytic
converter.
R Make sure you adhere to the prescribed
service intervals.
R Never run the fuel tank empty. R
If
the engine starts to misfire, bring the
vehicle to an immediate standstill
without endangering traffic.
R If the engine fails to start the first time,
you should not try to start it any more
than three times in succession.
R Do not try to start for more than four
seconds at a time. Tires
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 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
approximately 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. 146
Driving instructions
>> Operation.

(Y page 217), for example when purchasing
new tires.
For
information on how to identify the tire
speed rating on a tire’s sidewall, see “Tire
size designation, load and speed rating”
(Y page 136).
If you are uncertain about the correct
reading of the information given on a
tire’s sidewall, any authorized smart
center will be glad to assist you.
i For information on speed ratings for
winter tires, see “All-season and winter
tires” ( Y page 137). Winter driving instructions
The
most important rule for slippery or icy
roads is to drive sensibly and to avoid
abrupt acceleration, braking and steering
maneuvers.
When the vehicle is in danger of skidding,
move gear selector lever to neutral
position N. Try to keep the vehicle under
control by corrective steering action.
For information on driving with snow
chains*, see “Snow chains*” (Y page 142). G
WARNING
On slippery road surfaces, never downshift
in order to obtain braking action. This
could result in drive wheel slip and
reduced

vehicle control. Your vehicle’s ABS
will not prevent this type of loss of control.
Road salts and chemicals can adversely
affect braking efficiency. Increased pedal
force may become necessary to produce the
normal braking effect.
Depressing the brake pedal periodically
when traveling at length on salt-strewn
roads can bring road-salt-impaired
braking efficiency back to normal.
If the vehicle is parked after being driven
on salt-treated roads, the braking
efficiency should be tested as soon as
possible after driving is resumed. G
WARNING
Make sure not to endanger any other road
users when carrying out these braking
maneuvers. G
WARNING
If the vehicle becomes stuck in snow, make
sure
snow is kept clear of the exhaust pipe
and from around the vehicle with the engine
running. Otherwise, deadly carbon
monoxide (CO) gases may enter vehicle
interior resulting in unconsciousness and
death.
To assure sufficient fresh air ventilation,
open a window slightly on the side of the
vehicle not facing the wind. G
WARNING
The outside temperature display is not
designed
to serve 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.
For more information, see “Winter driving”
(Y page 142). Standing water
! Do not drive through flooded areas or
water of unknown depth. Before driving
through water, determine its depth.
Never accelerate before driving into
water. The bow wave could force water
into the engine and auxiliary
equipment, thus damaging them.
If you must drive through standing water,
drive

slowly to prevent water from entering
R the front compartment
R the engine compartment
R the passenger compartment
Water in these areas could cause damage to
electrical components or wiring of the
engine or transmission, or could result in 148
Driving instructions
>> Operation.
* optional

X
Removing: Fold the wiper arm away from
the
rear window until you feel it engage.
X Fold wiper blade :
away from the wiper
arm in direction of arrow ; until it
disengages from its mounting.
X Detach wiper blade :.
X Installing:
Push the new wiper blade onto
the wiper arm until you feel it engage.
X Fold the wiper blade into a position
parallel to the wiper arm.
X Fold the wiper arm backward to rest on
the rear window.
Make sure to hold on to the wiper when
folding the wiper arm back.
! Make sure the wiper blade is properly
installed. An improperly installed
wiper blade may cause rear window
damage. Adjusting the washer jet nozzles
:
Front washer jet nozzles
; Rear washer jet nozzles
X Adjusting: Use a needle to move washer
jet nozzles : or ; left, right, up, or
down.
i Check the setting of the washer jet
nozzles at regular intervals. The washer
jet nozzles are correctly set when the
water

jet hits the windshield or the rear
window approximately in the center. Flat tire
Preparing the vehicle
Upon experiencing any type of problem
with the vehicle’s tires, switch on the
hazard warning flasher, carefully slow
down and exit the roadway in a cautious
manner.
X Park the vehicle at a safe distance from
moving traffic on a hard, flat surface
when possible.
X Make sure the tire valve of the damaged
tire

is located below the horizontal axle
of the wheel hub.
X Engage the parking brake.
X Turn the steering wheel so that the front
wheels are in a straight ahead position.
X Move the gear selector lever to park
position P.
X Turn off the engine.
X Remove the key from the starter switch
and take the key with you.
i Open
door only when conditions are safe
to do so.
X Have any passenger exit the vehicle at a
safe distance from the roadway. Using the tire repair kit
! Depending

on the type of damage on the
tire, the tire sealant could damage the
sensor of the Tire Pressure Monitoring
System (TPMS)*. Such damage is not
covered by the smart Limited Warranty.
When having the damaged tire replaced,
also have the TPMS sensors* checked for
proper function. When the sensor is
damaged, the TPMS* will not function
properly. The sensor must then be
replaced at an authorized smart center as
soon as possible.
i Depending on production date of your
vehicle, it will be equipped with version
1 or version 2 of the tire repair kit. 186
Flat tire
>> Practical hints.
* optional