MITSUBISHI iMiEV 2012 1.G Owners Manual

7-18 Vehicle care and maintenance
7Tires
N00939200540
It is important to familiarize yourself with the following terms:

Cold tire pressure:
• The measured pressure after the vehicle has been parked
for at least three hours,
or
• The measured pressure when the vehicle is driven less
than 1 mile (1.6 km) after having been parked for three
hours.

Maximum inflation pressure: the maximum permissible
cold tire inflation pressure for this tire.

Recommended inflation pressure: the inflation pressure
for optimum tire performance.
Intended outboard sidewall:
• The sidewall that contains a whitewall, bears white let-
tering or bears manufacturer, brand, and/or model name
molding that is higher or deeper than the same molding
on the other sidewall of the tire,
or
• The outward facing sidewall of an asymmetrical tire that
has a particular side that must always face outward
when mounted on a vehicle.

Passenger car tire: a tire intended for use on passenger
cars, multipurpose passenger vehicles, and trucks, that
have a gross vehicle weight rating (GVWR) of 10,000
pounds or less.

Light truck (LT) tire: a tire designated by its manufacturer
as primarily intended for use on lightweight trucks or mul-
tipurpose passenger vehicles.

Tread: portion of a tire that comes into contact with the
road.

Tread rib: a tread section running circumferentially
around a tire.

Tread separation: pulling away of the tread from the tire
carcass.

Carcass: the tire structure, except tread and sidewall rub-
ber which, when inflated, bears the load.

Sidewall: portion of a tire between the tread and bead.

Section width: the linear distance between the exteriors of
the sidewalls of an inflated tire, excluding elevations due
to labeling, decoration, or protective bands.

Bead: the part of the tire that is made of steel wires,
wrapped or reinforced by ply cords and that is shaped to
fit the rim.

Ply: a layer of rubber-coated parallel cords.
WA R N I N G
!
Driving with tires that are worn, damaged or
improperly inflated is dangerous.
These type tire conditions will adversely affect vehi-
cle performance.
These type tire conditions can also cause a tread sep-
aration or blowout which may result in an accident
causing serious injury or death.
Tires degrade over time with age even when they are
not being used. It is recommended that tires over 6
years generally be replaced even if damage is not
obvious.
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Vehicle care and maintenance
7-19
7

Cord: the strands forming the plies in the tire.

Rim: a metal support for a tire or a tire and tube assembly
upon which the tire beads are seated.

Rim diameter: nominal diameter of the bead seat.

Groove: the space between two adjacent tread ribs.Tire Markings
Size Designation
EXAMPLE:P215/65R15

NOTE

European/Japanese metric tire sizing is based on
European/Japanese design standards. Tires designed
to these standards have the tire size molded into the
sidewall beginning with the section width. The letter
“P” is absent from this tire size designation. Exam-
ple: 215/65R15 96H.


LT (Light Truck) -metric tire sizing is based on
U.S.A. design standards. The size designation for
LT-metric tires is the same as for P-metric tires
except for the letters “LT” that are molded into the
sidewall preceding the size designation. Example:
LT235/85R16.
PPassenger car tire size based on U.S.A. design
standards
215 Section width in millimeters (mm.)
65Aspect ratio in percent (%)
Ratio of section height to section width of tire.
RConstruction code
• “R” means radial construction.
• “D” means diagonal or bias construction.
15 Rim diameter in inches (in)
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7-20 Vehicle care and maintenance
7
Service DescriptionEXAMPLE: 95H
Maximum Load
Maximum load indicates the maximum load this tire is
designed to carry.Maximum Pressure
Maximum Pressure indicates the maximum permissible
cold tire inflation pressure for this tire.
Tire Identification Number (TIN)
The TIN may be found on one or both sides of the tire but
the date code may only be on one side. Look for the TIN
on the outboard side of tires as mounted on the vehicle. If
the TIN is not found on the outboard side then you will
find it on the inboard side of the tire.
EXAMPLE: DOT MA L9 ABCD 1504

95Load index
A numerical code associated with the maxi-
mum load a tire can carry.
HSpeed symbol
A symbol indicating the range of speeds at
which a tire can carry a load corresponding to
its load index under certain operating condi-
tions.
The maximum speed corresponding to the
speed symbol should only be achieved under
specified operating conditions. (i.e. tire pres-
sure, vehicle loading, road conditions and
posted speed limits)
WA R N I N G
!
Overloading of your tire is dangerous. Over-
loading can cause tire failure, affect vehicle
handling, and increase your stopping distance.
Use tires of the recommended load capacity for
your vehicle. Never overload them.
DOTDepartment of Transportation
This symbol certifies that the tire is in compli-
ance with the U.S. Department of Transporta-
tion tire safety standards, and is approved for
highway use.
MACode representing the tire manufacturing
location. (2 digits)
L9
ABCDCode representing the tire size. (2 digits)
Code used by tire manufacturer. (1 to 4 digits)
15Number representing the week in which the
tire was manufactured. (2 digits)
04Number representing the year in which the
tire was manufactured. (2 digits)
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Vehicle care and maintenance
7-21
7
Treadwear, Traction and Temperature GradesTreadwear
The treadwear grade is a comparative rating based on the wear
rate of the tire when tested under controlled conditions on a
specified government test course. For example, a tire graded
150 would wear one and one-half (1
1/2) times as well on the
government course as a tire graded 100. The relative perfor-
mance of tires depends upon the actual conditions of their use,
however, and may depart significantly from the norm due to
variations in driving habits, service practices and differences in
road characteristics and climate.
Traction
The traction grades, from highest to lowest, are AA, A, B and
C. Those grades represent the tire’s ability to stop on wet pave-
ment as measured under controlled conditions on specified
government test surfaces of asphalt and concrete. A tire
marked C may have poor traction performance.
Temperature
The temperature grades are A (the highest), B and C, represent-
ing 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 tempera-
ture can cause the material of the tire to degenerate and reduce
tire life, and excessive temperature can lead to sudden tire fail-
ure. The grade C corresponds to a level of performance which
all passenger car tires must meet under the Federal Motor Vehi-
cle Safety Standard No. 109. Grades B and A represent higher
levels of performance on the laboratory test wheel than the
minimum required by law.
Tire inflation pressures
N00939300860
Proper tire inflation pressure is essential for the safe and satis-
factory operation of your vehicle. The wrong tire pressure will
cause problems in three major areas:

Safety
Too little pressure increases flexing in the tire and can
cause tire failure. Too much pressure can cause a tire to
lose its ability to cushion shock. Objects on the road and
potholes could then cause tire damage that may result in
tire failure.

Economy
The wrong tire pressure can cause uneven wear patterns in
the tire tread. These abnormal wear patterns will reduce
the tread life, and the tire will have to be replaced sooner.
Too little pressure also makes it harder for the tire to roll,
and this uses up more power.

Ride comfort and vehicle stability
The superior riding experience built into your vehicle
partly depends on the correct tire pressure. Too much
pressure gives an uncomfortable and jarring ride. Too lit-
tle pressure feels as if your vehicle is slow to respond.
Unequal tire pressures can make steering your vehicle
uneven and unpredictable.
The correct tire pressure for your vehicle is listed on the plac-
ard attached to the sill of the driver’s door.
(Refer to “Tire and loading information placard” on page 9-4.)
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7-22 Vehicle care and maintenance
7
The recommended inflation pressures should be used for the
tires listed below.
Tire pressures should be checked, and adjusted if necessary, at
least once a month.
Pressures should be checked more often whenever weather
temperatures change severely, because tire pressures change
with outdoor temperatures. The pressures listed on the placard
are always “cold inflation pressure”.
Cold inflation pressure is measured after the vehicle has been
parked for at least three hours or is driven less than 1 mile
(1.6 km) after having been parked for three hours.
Cold inflation pressure must not go above the maximum values
molded into the tire sidewall. After driving several miles, your
tire inflation pressure may increase 14 to 41 KPA, 2 to 6 PSI
from the cold inflation pressure. Do not let air out of the tires to
get back to the specified cold pressure, or your tire pressure
will be too low.
You should also take the following safety precautions:

Keep your tires inflated to the recommended pressures.
(See the tire and loading information placard attached to
the sill of the driver’s door.)

Stay within the recommended load limits.

Make sure that the weight of any load in your vehicle is
evenly distributed.

Drive at safe speeds.
After filling your tires to the correct pressure, check them
for damage and air leaks. Be sure to reinstall the caps on
the valve stems.
Tire size
Front
Rear
145/65R15 72H 250 KPA, 36 PSI —
175/60R15 81H — 250 KPA, 36 PSI
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Vehicle care and maintenance
7-23
7
Replacing tires and wheels
N00939600427
Tire maintenance
N00939700170
The following maintenance steps are recommended:

Check tire pressures regularly.

Have regular maintenance done on the wheel balance and
front and rear suspension alignment.
Tread wear indicators
N00939800214
Tread wear indicators are built into the original equipment tires
on your vehicle to help you know when your tires should be
replaced. Many states have laws requiring that you replace
your tires at this point.
These indicators are molded into the bottom of the tread
grooves and will appear when the tire tread is worn down to
1/16 inch (1.6 mm).
When the bands appear next to one another in two or more
places, replace your tires. NOTE
Tire wear indicators can have different marks and loca-
tions depending on the tire manufacturer.
CAUTION
!
Avoid using different size tires and wheels from the
ones listed, and avoid the combined use of different
types of tires and wheels. Using different size or type
tires and wheels may affect driving safety.
Refer to “Tires and wheels” on page 9-9.
Even if a wheel has the same rim size and offset as
the specified type of wheel, its shape may prevent it
from being fitted correctly. Consult a certified
i-MiEV dealer before using wheels that you have.
Only Mitsubishi Motors genuine wheels should be
used, because your vehicle is equipped with a tire
pressure monitoring system.
Use of another type of wheel risks air leaks and
sensor damage, as it will not be possible to install the
tire pressure sensor properly.
1- Location of the tread wear indicator
2- Tread wear indicator
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7-24 Vehicle care and maintenance
7
Tire rotation
N00939900518
Because the front and rear tires and wheels are not the same
size, do not rotate the front and rear tires.
Snow tires
N00940000359
In some areas of the country, snow tires are required for winter
driving. If snow tires are required in your area, you must
choose snow tires of the same size and type as the original tires
provided with your vehicle. Snow tires should also be installed
on all four wheels. Otherwise your safety and vehicle handling
can be reduced.
Even where laws may permit it, snow tires should not be oper-
ated at sustained speeds over 75 mph (120 km/h).Tire chains
N00940100129
WA R N I N G
!
Rotating tires would compromise the stability and
drivability of the vehicle and could lead to a serious
accident.
CAUTION
!
If flange nuts are used on your vehicle, change to
tapered nuts when using snow tires with steel
wheels.
Only Mitsubishi Motors genuine wheels should be
used, because your vehicle is equipped with a tire
pressure monitoring system.
Use of another type of wheel risks air leaks and
sensor damage, as it will not be possible to install the
tire pressure sensor properly.
CAUTION
!
Tire chains cannot be used on your vehicle. The
clearance between the chains and the body is not
sufficient to allow proper clearance, and the vehicle
body might be damaged.
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Vehicle care and maintenance
7-25
7 Brake pedal free play
N00940300310
To check the brake pedal free play (A), turn off the electric
motor unit and press the brake pedal several times with your
foot. Then press the pedal down with your fingers until you
first feel resistance.
Brake pedal free play:
.1 to .3 inch (3 to 8 mm)
If the free play is not within these limits, take your vehicle to a
certified i-MiEV dealer for adjustment.
Parking brake lever stroke
N00940400236
Check the parking brake lever travel occasionally. To check
this, pull the lever up slowly and count the number of clicks of
the ratchet.
Parking brake lever stroke:
6 to 7 notches
Also check to see if the lever stays gripped by the ratchet after
pulling.
WA R N I N G
!
Continued operation of the vehicle with the parking
brake lever out of adjustment may result in the vehi-
cle moving when unattended.
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7-26 Vehicle care and maintenance
7Wiper blades
N00940700200
Check the wiper blades occasionally. Clean them regularly to
remove deposits of salt and road film. Use a sponge or cloth
and a mild detergent or non-abrasive cleaner to clean the blades
and glass areas.
Replace the blades if they continue to streak or smear.NOTE
Do not run the wipers on dry glass for a long time. This
wears out the rubber and can scratch the glass.During cold weatherIf the blades are frozen to the windshield or rear window, do
not operate the wipers until the ice has melted and the blades
are freed, otherwise the wiper motor may be damaged.NOTE
When replacing front wiper blade assembly with a wiper
blade for use in cold regions, it is necessary to adjust the
washer nozzle (A) spray positions. Always contact a certi-
fied i-MiEV dealer when replacing front wiper blade with
a wiper blade for use in cold regions.
When removing snow and frost, be careful not to damage
the washer nozzle which are attached to the wiper arm.
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Vehicle care and maintenance
7-27
7 General maintenance
N00941500289
The next pages list the maintenance service recommended by
Mitsubishi Motors Corporation. In addition to the general
maintenance that needs to be performed at the times listed,
there are other parts which do not usually need regular mainte-
nance.
But, if any of these parts stops working properly, your vehicle
performance could suffer. Have these items checked if you
notice a problem with them.
See a certified i-MiEV dealer for assistance, if you have any
questions.Disc brake pads, rear drum brake linings and
rear wheel cylinders
N00941600033
Good brakes are essential to safe driving. Check the brake pads
and brake linings for wear and check the rear wheel cylinders
for leaks. For good braking performance, replace the brake
pads with the same type pads as the originals.Brake hoses
N00941700047
Brake hoses and tubing should be checked for:

Severe surface cracking, scuffing or worn spots. If the
fabric casing of the hose is showing through any cracks or
worn spots in the rubber hose cover, the hose should be
replaced. The brakes can fail if the hose wears through.

Improper installation may cause twisting, or wheel, tire or
chassis interference.
Ball joint, steering linkage seals and drive shaft
boots
N00941800077
Check the following parts for damage and grease leaks:

Ball joint boots of the front suspension and steering link-
age

Bellows on both ends of the drive shaftHood lock release mechanism and safety catch
N00942500114
The hood lock release mechanism and hood safety catch should
be checked, cleaned, and oiled when needed for easy move-
ment and to stop rust and wear. Use Multipurpose Grease
NLGI Grade 2 sparingly for all sliding parts of the hood latch
and release lever. Work the grease into the hood lock mecha-
nism until all the movable surfaces are covered.
Also, put a light coat of the same grease on the safety catch
wherever moving parts touch.
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