2016 MAZDA MX5 MIATA tire pressure

6–43
Maintenance and Care
Owner Maintenance
*Some models.
Replacing a Tire
WARNING
Always use tires that are in good
condition:Driving with worn tires is dangerous.
Reduced braking, steering, and
traction could result in an accident.
Replace all four tires at the same time: Replacing just one tire is dangerous. It
could cause poor handling and poor
braking resulting in loss of vehicle
control. Mazda strongly recommends
that you replace all four tires at the
same time.
If a tire wears evenly, a wear indicator will
appear as a solid band across the tread.
Replace the tire when this happens.
New tread Tread wear indicator
Worn tread
You should replace the tire before the band
crosses the entire tread.
(With tire pressure monitoring system)
After adjusting the tire pressure,
initialization of the tire pressure
monitoring system is necessary to make
the system operate normally.
Refer to Tire Pressure Monitoring System
Initialization on page 4-96.
NOTE
Tires degrade over time, even when
they are not being used on the road. It
is recommended that tires generally be
replaced when they are 6 years or older.
Heat caused by hot climates or frequent
high loading conditions can accelerate the
aging process. The period in which the tire
was manufactured (both week and year) is
indicated by a 4-digit number.
Refer to Tire Labeling on page 8-24.
Replacing a Wheel
WARNING
Always use wheels of the correct size on
your vehicle:
Using a wrong-sized wheel is
dangerous. Braking and handling
could be affected, leading to loss of
control and an accident.
CAUTION
A wrong-sized wheel may adversely
affect:
 Tire fit Wheel and bearing life Ground clearance Snow-chain clearance Speedometer calibration Headlight aim Bumper height Tire Pressure Monitoring System*
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7–8
If Trouble Arises
Flat Tire
10. Install the bottle to the air compressor
and press it in until the left and right
tabs are engaged securely.
Tabs
11. Insert the air compressor plug into the
accessory socket inside the vehicle and
switch the ignition to ACC.
Refer to Accessory Sockets on page
5-133.
Compressor
Compressor plug
CAUTION
When inserting the air compressor
plug into or removing it from the
accessory socket, make sure that the
air compressor switch is off. When
turning the air compressor on/off, use
the air compressor switch.
12. The sealant is injected into the tire
when the air compressor is switched
on. After the sealant is injected
completely, wait until the tire inflation
pressure increases to the specified tire
inflation pressure.
NOTE
The inflation pressure may increase to
about 300 kPa (3.1 kgf/cm2, 3 bar, 43.5
psi) temporarily to inject the sealant
through the valve. Normally, the inflation
pressure decreases gradually and it
reaches the actual inflation pressure after
about 30 seconds.
WARNING
Never use the air compressor above 300
kPa (3.1 kgf/cm2, 3 bar, 43.5 psi):
Using the air compressor at an
inflation pressure above 300 kPa (3.1
kgf/cm
2, 3 bar, 43.5 psi) continuously
is dangerous. If the air compressor
overheats, hot air will be exhausted
and you could get burned.
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7–9
If Trouble Arises
Flat Tire
NOTE
 Check the tire inflation pressure label
driver's door frame for the correct tire
inflation pressure.
 Do not operate the air compressor
for a continuous 10 minutes or longer
because using it for long periods could
cause a malfunction.
 If the tire inflation pressure does
not increase, repair of the tire is not
possible. If the tire does not reach the
specified tire inflation pressure within
10 minutes, it may have received
extensive damage. In this case, the
repair using the emergency flat tire
repair kit was not successful. Contact
an Authorized Mazda Dealer.
13. Adhere the speed restriction sticker to
an area where it can be viewed easily
by the driver.
14. Adhere the repaired tire sticker to the
wheel of the flat tire.
WARNING
Do not adhere the speed restriction
sticker to the padded area on the
steering wheel: Adhering the speed restriction sticker
to the padded area on the steering
wheel is dangerous because the
air bag may not operate (deploy)
normally resulting in serious injury.
In addition, do not adhere the sticker
to areas where warning lights or the
speedometer cannot be viewed.
15. When the tire inflates to the specified
tire inflation pressure, turn the air
compressor switch off, turn the sleeve
of the injection hose to the left, and pull
it out of the tire valve.
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7–10
If Trouble Arises
Flat Tire
16. Remove the air compressor hose from
the injection valve of the bottle. After
that, install the injection hose to the
injection valve of the bottle to prevent
leakage of any remaining sealant.
CAUTION
The remaining sealant in the hose may
spray out when the hose is removed.
Remove the hose carefully because you
may not be able to remove the sealant
contacting clothing or other objects.
17. Install the tire valve cap.
18. Put the emergency flat tire repair kit
into the trunk.
19. Start driving immediately to spread the
sealant in the tire.
CAUTION
Carefully drive the vehicle at a speed of
80 km/h (50 mph) or less. If the vehicle
is driven at a speed of 80 km/h (50
mph) or more, the vehicle may vibrate.
NOTE
(With Tire Pressure Monitoring System)
If the tire is not properly inflated, the tire
pressure monitoring system warning light
will illuminate (page 4-16).
20. After driving the vehicle for about 10
minutes or 5 km (3 miles), connect the
air compressor to the tire using Step
9 of the procedure, and check the tire
inflation pressure using the tire pressure
gauge on the air compressor. If the
tire inflation pressure is lower than the
specified tire inflation pressure, turn
the air compressor on and wait until
it reaches the specified tire inflation
pressure.
WARNING
If the tire inflation pressure has
decreased below 130 kPa (1.3 kgf/cm2 or
bar, 18.9 psi), stop driving and contact
an Authorized Mazda Dealer: The repair using the emergency flat tire
repair kit was not successful.
If you see a decrease in the tire inflation
pressure, even if Steps 9 to 20 of the
procedure are performed repeatedly,
stop driving: Contact an Authorized Mazda Dealer.
CAUTION
Before checking the tire inflation
pressure using the tire pressure gauge,
turn the air compressor switch off.
21. The emergency flat tire repair is
completed successfully if the tire
inflation pressure does not decrease.
Carefully drive the vehicle to the
nearest Authorized Mazda Dealer
immediately and have the flat tire
replaced. Replacement with a new
tire is recommended. If the tire is
to be repaired or reused, consult an
Authorized Mazda Dealer.
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7–14
If Trouble Arises
Flat Tire
17. Install the air compressor hose to the
tire valve.
ValveCompressor hose
18. Insert the air compressor plug into the
accessory socket inside the vehicle and
switch the ignition to ACC.
Refer to Accessory Sockets on page
5-133.
Compressor
Compressor plug
CAUTION
When inserting the air compressor
plug into or removing it from the
accessory socket, make sure that the
air compressor switch is off. When
turning the air compressor on/off, use
the air compressor switch.
19. Turn the air compressor switch on and
inflate the tire carefully to the correct
inflation pressure.
NOTE
 Check the tire inflation pressure label
driver's door frame for the correct tire
inflation pressure.
 Do not operate the air compressor
for a continuous 10 minutes or longer
because using it for long periods could
cause a malfunction.
 If the tire inflation pressure does
not increase, repair of the tire is not
possible. If the tire does not reach the
specified tire inflation pressure within
10 minutes, it may have received
extensive damage. In this case, the
repair using the emergency flat tire
repair kit was not successful. Contact
an Authorized Mazda Dealer.
 If the tire has been over-inflated, loosen
the screw cap on the air compressor and
bleed some of the air out.
20. When the tire inflates to the specified
tire inflation pressure, turn the air
compressor switch off, turn the sleeve
of the air compressor hose to the left,
and pull it out of the tire valve.
21. Install the tire valve cap.
22. Put the emergency flat tire repair kit
into the trunk.
23. Start driving immediately to spread the
sealant in the tire.
CAUTION
Carefully drive the vehicle at a speed of
80 km/h (50 mph) or less. If the vehicle
is driven at a speed of 80 km/h (50
mph) or more, the vehicle may vibrate.
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7–15
If Trouble Arises
Flat Tire
24. After driving the vehicle for about 10
minutes or 5 km (3 miles), connect the
air compressor to the tire using Step
17 of the procedure, and check the tire
inflation pressure using the tire pressure
gauge on the air compressor. If the
tire inflation pressure is lower than the
specified tire inflation pressure, turn
the air compressor on and wait until
it reaches the specified tire inflation
pressure.
WARNING
If the tire inflation pressure has
decreased below 130 kPa (1.3 kgf/cm2 or
bar, 18.9 psi), stop driving and contact
an Authorized Mazda Dealer: The repair using the emergency flat tire
repair kit was not successful.
If you see a decrease in the tire inflation
pressure, even if Steps 17 to 24 of the
procedure are performed repeatedly,
stop driving: Contact an Authorized Mazda Dealer.
CAUTION
Before checking the tire inflation
pressure using the tire pressure gauge,
turn the air compressor switch off.
25. The emergency flat tire repair is
completed successfully if the tire
inflation pressure does not decrease.
Carefully drive the vehicle to the
nearest Authorized Mazda Dealer
immediately and have the flat tire
replaced. Replacement with a new
tire is recommended. If the tire is
to be repaired or reused, consult an
Authorized Mazda Dealer.
NOTE
 If an emergency flat tire repair has been
performed using the emergency flat tire
repair kit, Mazda recommends that the
tire be replaced with a new one as soon
as possible. If the tire is to be repaired
or reused, consult an Authorized Mazda
Dealer.
 The wheel can be reused if the sealant
adhering to it is removed. However,
replace the valve with a new one.
Inspecting the Emergency Flat
Tire Repair Kit
Inspect the emergency flat tire repair kit at
regular intervals.
 Check the tire sealant period of effective
use. Check the operation of the tire
compressor.
NOTE
The tire sealant has a period of effective
use. Check the period of effective use
indicated on the bottle label and do not
use it if it has expired. Have the tire
sealant replaced at an Authorized Mazda
Dealer before the period of effective use
has expired.
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7–19
If Trouble Arises
Flat Tire
*Some models.
WARNING
Do not jack up the vehicle higher than is
necessary:Jacking up the vehicle higher than
is necessary is dangerous as it could
destabilize the vehicle resulting in an
accident.
Do not start the engine or shake the
vehicle while it is jacked up: Starting the engine or shaking
the vehicle while it is jacked up is
dangerous as it could cause the vehicle
to fall off the jack resulting in an
accident.
Never go under the vehicle while it is
jacked up: Going under the vehicle while it is
jacked up is dangerous as it could
result in death or serious injury if the
vehicle were to fall off the jack.
8. Remove the lug nuts by turning them
counterclockwise; then remove the
wheel.
Locking Lug Nuts*
If your vehicle has Mazda optional
antitheft wheel lug nuts, one on each
wheel will lock the tires and you must
use a special key to unlock them. This
key will attach to the lug wrench.
Register them with the lock manufacturer
by filling out the card provided in the
glove compartment and mailing it in the
accompanying envelope. If you lose this
key, consult an Authorized Mazda Dealer
or use the lock manufacturer's order form,
which is with the registration card.
Accessory wheel locks cannot be used on
steel wheels. This includes situations when
the spare tire is installed. If the spare tire
is installed, one of the original lug nuts
(which should still be in the vehicle) must
be installed in place of the wheel lock.
Special ke y
Antitheft lug nut
To remove an antitheft lug nut
1. Obtain the special key for the antitheft
lug nut.
2. Place the special key on top of the
antitheft lug nut, and be sure to hold
the key square to it. If you hold the key
at an angle, you may damage both key
and nut. Do not use a power impact
wrench.
3. Place the lug wrench on top of the key
and apply pressure. Turn the wrench
counterclockwise.
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7–20
If Trouble Arises
Flat Tire
To install the antitheft lug nut
1. Place the special key on top of the nut,
and be sure to hold the key square to
it. If you hold the key at an angle, you
may damage both key and nut. Do not
use a power impact wrench.
2. Place the lug wrench on top of the
special key, apply pressure, and turn it
clockwise.
Nut tightening torque
N·m (kgf·m, ft·lbf) 108—147
(12—14, 80—108)
Mounting the Tire
1. Remove dirt and grime from the
mounting surfaces of the wheel and
hub, including the hub bolts, with a
cloth.

WARNING
Make sure the mounting surfaces of
the wheel, hub and lug nuts are clean
before changing or replacing tires:
When changing or replacing a tire,
not removing dirt and grime from the
mounting surfaces of the wheel, hub
and hub bolts is dangerous. The lug
nuts could loosen while driving and
cause the tire to come off, resulting in
an accident.
2. Mount the tire.
3. Install the lug nuts with the beveled
edge inward; tighten them by hand.

WARNING
Do not apply oil or grease to lug nuts
and bolts and do not tighten the
lug nuts beyond the recommended
tightening torque:Applying oil or grease to lug nuts and
bolts is dangerous. The lug nuts could
loosen while driving and cause the tire
to come off, resulting in an accident.
In addition, lug nuts and bolts could
be damaged if tightened more than
necessary.
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