engine MAZDA MODEL 3 5-DOOR 2004 Repair Manual

8-10
Maintenance and Care
Form No. 8S18-EA-03I
Owner Maintenance
The owner or a qualified service technician should make these vehicle inspections at the
indicated intervals to ensure safe and dependable operation.
Bring any problem to the attention of an Authorized Mazda Dealer or qualified service
technician as soon as possible.

When Refueling
• Brake and clutch fluid level (page 8-18)
• Engine coolant level (page 8-15)
• Engine oil level (page 8-13)
• Washer fluid level (page 8-21)


At Least Monthly
• Tire inflation pressures (page 8-31)


At Least Twice a Year (For Example, Every Spring and Fall)
• Automatic transaxle fluid level (page 8-20)
• Power steering fluid level (page 8-19)
You can do the following scheduled maintenance items if you have some mechanical
ability and a few basic tools and if you closely follow the directions in this manual.
• Air filter (page 8-23)
• Engine coolant (page 8-15)
• Engine oil (page 8-14)
Owner Maintenance Schedule
J48C_8S18-EA-03I_Edition3.book Page 10 Monday, February 9, 2004 8:41 PM
Black process 45.0 ° 240.0 LPI

8-11
Maintenance and Care
Owner Maintenance
Form No. 8S18-EA-03I
Improper or incomplete service may result in problems. This section gives instructions
only for items that are easy to perform.
As explained in the Introduction (page 8-2), several procedures can be done only by a
qualified service technician with special tools.
Improper owner maintenance during the warranty period may affect warranty coverage.
For details, read the separate Mazda Warranty statement provided with the vehicle. If
you’re unsure about any servicing or maintenance procedure, have it done by an
Authorized Mazda Dealer.
There are strict environmental laws regarding the disposal of waste oil and fluids. Please
dispose of your waste properly and with due regard to the environment.
We recommend that you entrust the oil and fluid changes of your vehicle to an Authorized
Mazda Dealer.
Owner Maintenance Precautions
Maintenance Procedures:
Performing maintenance work on a vehicle is dangerous if not done properly. You can
be seriously injured while performing some maintenance procedures. If you lack
sufficient knowledge and experience or the proper tools and equipment to do the
work, have it done by a qualified technician.
Running the Engine:
Working under the hood with the engine running is dangerous. It becomes even more
dangerous when you wear jewelry or loose clothing.
Either can become entangled in moving parts and result in injury.
Therefore, if you must run the engine while working under the hood, make certain
that you remove all jewelry (especially rings, bracelets, watches, and necklaces) and
all neckties, scarves, and similar loose clothing before getting near the engine or
cooling fan which may turn on unexpectedly.
Electrical Fan and Engine Inspection:
Inspecting the engine with the ignition switch in the ON position is dangerous. The
cooling fan could come on unexpectedly even when the engine isn’ t running. You
could be seriously injured by the fan. Turn the ignition switch off and remove the key
from the ignition switch when you inspect the engine.
WARNING
J48C_8S18-EA-03I_Edition3.book Page 11 Monday, February 9, 2004 8:41 PM
Black process 45.0 ° 240.0 LPI

8-12
Maintenance and Care
Owner Maintenance
Form No. 8S18-EA-03I
Engine Compartment Overview
Engine oil
dipstick
Fuse block
Air filter
Battery
Brake/Clutch fluid
reservoir
Engine oil-filler cap
Engine coolant
reservoir
Windshield washer
fluid reservoir
Power steering
fluid reservoir
Main fuse
Automatic transaxle fluid-level
dipstick (only for automatic transaxle)
J48C_8S18-EA-03I_Edition3.book Page 12 Monday, February 9, 2004 8:41 PM
Black process 45.0 ° 240.0 LPI

8-13
Maintenance and Care
Owner Maintenance
Form No. 8S18-EA-03I

Recommended Oil
Oil container labels provide important
information.
The quality designation SL
or ILSAC

must be on the label.
Energy conserving oils are recommended.
A chief contribution they make to fuel
economy is reducing the amount of fuel
necessary to overcome engine friction.

Inspecting Engine Oil Level
1. Be sure the vehicle is on a level
surface.
2. Warm up the engine to normal operating temperature.
3. Turn it off and wait at least 5 minutes for the oil to return to the oil pan.
4. Pull out the dipstick, wipe it clean, and reinsert it fully.
5. Pull it out again and examine the level. It’s OK between MIN and MAX.
But if it ’s near or below MIN, add
enough oil to bring the level to MAX.
6. Make sure the O-ring on the dipstick is positioned properly before reinserting
the dipstick.
The distance between MIN and MAX on
the dipstick represents the following:
Engine Oil
FORGASOLINEENGINES
(ILSAC)
–30 –20–100 1020304050
–20 0 20 40 60 80 100 120
5W-20Don’t add engine oil over MAX. This
may cause engine damage.
L (US qt, Imp qt) 0.75 (0.79, 0.66)
OK
Full
Low
OK
Full
Low
Type A
Type B
CAUTION
J48C_8S18-EA-03I_Edition3.book Page 13 Monday, February 9, 2004 8:41 PM
Black process 45.0 ° 240.0 LPI

8-14
Maintenance and Care
Owner Maintenance
Form No. 8S18-EA-03I

Changing Engine Oil and Filter
Change engine oil and filter according to
Scheduled Maintenance (page 8-3).
Please act responsibly
—protect the
environment and take used oil to a
recycling facility. Ask your dealer or a
service station for information.
Changing engine oil
1. Warm up the engine for a few minutes and turn it off. Remove the oil-filler
cap.
2. Remove the drain plug and drain the oil into a suitable container.
3. Replace the drain plug washer after the oil has thoroughly drained.
4. Reinstall the plug tightly.
5. Fill the engine with new oil to the MAX mark on the dipstick.
6. Securely reinstall the oil-filler cap.
7. Start the engine and inspect around the drain plug for leaks.
8. Turn it off and wait 5 minutes for the oil to return to the oil pan.
Check the oil level and fill to the MAX
mark if necessary.
Oil capacity (General reference only,
refer to Specifications section for
capacities.)
Handling Used Engine Oil:
Continuous contact with used engine
oil is dangerous. It could cause skin
cancer. Always wash with soap and
water immediately after changing oil
and filter.
Remove any oil splatter from the
exhaust manifold, the exhaust pipe and
the shield. Oil left on these areas will
smoke when the engine is running.
Checking or Changing Engine Oil:
Hot engine oil is dangerous. If the
engine has been running, the engine
oil becomes very hot. You could be
seriously burned. Don ’t check or
change the engine oil when the
engine is hot.
WARNING
CAUTION
WARNING
Front Loosen
Drain plugTighten
J48C_8S18-EA-03I_Edition3.book Page 14 Monday, February 9, 2004 8:41 PM
Black process 45.0 ° 240.0 LPI

8-15
Maintenance and Care
Owner Maintenance
Form No. 8S18-EA-03I
Changing oil filter
Because you need a special tool to
retighten the filter, an Authorized Mazda
Dealer should do the work.

Inspecting Coolant Level
NOTE
• The indicated engine oil capacities
are for general reference purposes
only. When adding or changing oil,
verify the engine oil level with the
oil dipstick.
• Use only specified engine oil (page
10-4).
Engine Coolant
Hot Engine:
A hot engine is dangerous. If the
engine has been running, parts of the
engine compartment can become very
hot. You could be burned. Carefully
inspect the engine coolant in the
coolant reservoir, but do not open it.
Do not use a match or live flame in
the engine compartment. DO NOT
ADD COOLANT WHEN THE
ENGINE IS HOT.
Cooling Fan and Engine
Inspection:
Inspecting the engine with the
ignition switch in the ON position is
dangerous. The cooling fan could
turn on unexpectedly even when the
engine isn ’t running. You could be
seriously injured by the fan. Turn the
ignition switch off and remove the key
from the ignition switch when you
inspect the engine.
Cooling System Cap:
When the engine and radiator are
hot, scalding coolant and steam may
shoot out under pressure and cause
serious injury. Don’ t remove the
cooling system cap when the engine
and radiator are hot.
WARNING
J48C_8S18-EA-03I_Edition3.book Page 15 Monday, February 9, 2004 8:41 PM
Black process 45.0 ° 240.0 LPI

8-16
Maintenance and Care
Owner Maintenance
Form No. 8S18-EA-03I
Inspect the antifreeze protection and
coolant level in the coolant reservoir at
least once a year—at the beginning of the
winter season —and before traveling
where temperatures may drop below
freezing.
Inspect the condition and connections of
all cooling system and heater hoses.
Replace any that are swollen or
deteriorated.
The coolant should be at full in the
radiator and between the MAX and MIN
marks on the coolant reservoir when the
engine is cool.
If it ’s at or near MIN, add enough coolant
to the coolant reservoir to provide
freezing and corrosion protection and to
bring the level to MAX.
Do not overfill.
If new coolant is required frequently,
consult an Authorized Mazda Dealer.
Changing Coolant
Change coolant according to Scheduled
Maintenance (page 8-3).
For mixture percentage:
Radiator coolant will damage paint.
Rinse it off quickly if spilled.
CAUTION
• Use only soft (demineralized) water
in the coolant mixture. Water that
contains minerals will cut down on
the coolant
’s effectiveness.
• Don
’t add only water. Always add a
proper coolant mixture.
• The engine has aluminum parts and
must be protected by an ethylene-
glycol-based coolant to prevent
corrosion and freezing.
• DO NOT USE alcohol or methanol
antifreeze. DO NOT MIX alcohol
or methanol with the coolant. This
could damage the cooling system.
• Don
’t use a solution that contains
more than 60 % antifreeze.
This would reduce effectiveness.
Protection Vo l u m e
Antifreeze solution Demineralized
water
Above -16 °
C (3 °
F) 35% 65%
Above -26 °
C (-15 °
F) 45% 55%
Above -40 °
C (-40 °
F) 55% 45%
CAUTION
J48C_8S18-EA-03I_Edition3.book Page 16 Monday, February 9, 2004 8:41 PM
Black process 45.0 ° 240.0 LPI

8-17
Maintenance and Care
Owner Maintenance
Form No. 8S18-EA-03I
To change coolant1. Remove the cooling system cap.
2. Only when the engine is cool, remove the radiator drain plug and drain the
coolant into a suitable container.
Properly dispose of the used coolant.
3. Flush out the system with running water.
4. Drain the system completely. Insert and tighten the plug. Add as much
ethylene-glycol-based coolant mixture
and water as necessary to provide
freezing and corrosion protection.
5. In extremely cold climates, add the mixture percentage recommended in
the coolant mixture percentage table.
6. Run the engine at idle with the cooling system cap off. Slowly add additional
coolant if necessary.
7. At this point, wait until the engine reaches normal operating temperature;
then depress the accelerator two or
three times. Add more coolant, if
necessary, until the system is full.
8. Install the cooling system cap. Inspect all connections for leaks. Inspect the
level in the coolant reservoir one more
time.
Removing the Cooling System Cap:
Removing the cooling system cap
while the engine is running or hot is
dangerous. This might lead to cooling
system and engine damage and could
result in serious injury from escaping
hot coolant or steam. Turn off the
engine and wait until it ’s cool. Even
then, be very careful when removing
the cap.
Wrap a thick cloth around the cap
and slowly turn it counterclockwise
about two and a half rotations.
Step back while the pressure escapes.
When you ’re sure all the pressure has
escaped, turn the cap
counterclockwise — still using a cloth
— and remove the cap.
WARNINGLoosen
Loosen
Tighten
Tighten
J48C_8S18-EA-03I_Edition3.book Page 17 Monday, February 9, 2004 8:41 PM
Black process 45.0 ° 240.0 LPI

8-18
Maintenance and Care
Owner Maintenance
Form No. 8S18-EA-03I

Inspecting Brake/Clutch Fluid
Level
The brakes and clutch draw fluid from the
same reservoir.
Inspect the fluid level in the reservoir
regularly. It should be kept at MAX.
The level normally drops with
accumulated distance, a condition
associated with wear of brake and clutch
linings. If it is excessively low, have the
brake/clutch system inspected by an
Authorized Mazda Dealer.

Adding Brake/Clutch Fluid
If the fluid level is low, add fluid until it
reaches MAX.
Before adding fluid, thoroughly clean the
area around the cap.
Brake/Clutch Fluid
Spilled Brake Fluid:
Spilled brake fluid is dangerous. If it
gets in your eyes, they could be
seriously injured. If this happens,
immediately flush your eyes with
water and get medical attention.
Brake fluid spilled on a hot engine
could cause a fire. Be careful not to
spill brake fluid on yourself or on the
engine.
Low Brake/Clutch Fluid Levels:
Low brake/clutch fluid levels are
dangerous. Low levels could signal
brake lining wear or a brake system
leak. Your brakes could fail and cause
an accident. If you find a low fluid
level, have the brakes and clutch
inspected.
WARNING
J48C_8S18-EA-03I_Edition3.book Page 18 Monday, February 9, 2004 8:41 PM
Black process 45.0 ° 240.0 LPI

8-19
Maintenance and Care
Owner Maintenance
Form No. 8S18-EA-03I

Inspecting Power Steering Fluid
Level
Inspect the fluid level in the reservoir at
each engine oil change with the engine off
and cold. Add fluid if necessary; it does
not require periodic changing.
The level must be kept between MIN and
MAX.
Visually examine the lines and hoses for
leaks and damage.
If new fluid is required frequently, consult
an Authorized Mazda Dealer.
•
Brake and clutch fluid will damage
painted surfaces. If brake or clutch
fluid does get on a painted surface,
wipe it off immediately.
• Using nonspecified brake and clutch
fluids (page 10-4) will damage the
systems. Mixing different fluids
will also damage them.
If the brake/clutch system
frequently requires new fluid,
consult an Authorized Mazda
Dealer.
CAUTIONPower Steering Fluid
To avoid damage to the power steering
pump, don
’t operate the vehicle for
long periods when the power steering
fluid level is low.
NOTE
Use specified power steering fluid
(page 10-4).
CAUTION
J48C_8S18-EA-03I_Edition3.book Page 19 Monday, February 9, 2004 8:41 PM
Black process 45.0 ° 240.0 LPI