2003 MAZDA MODEL B-SERIES service

Chart symbols
I: Inspect, and if necessary correct, clean or replace
A: Adjust
R: Replace
L: Lubricate
Normal driving service intervals ± perform at the months or distances
shown, whichever occurs first.
Maintenance ItemMaintenance Interval (Number of months or km (miles),
whichever comes first)
Months 4 8 12 16 20 24 28 32 36 40 44 48
x 1000 Miles 5 10 15 20 25 30 35 40 45 50 55 60
(x 1000 km) (8) (16) (24) (32) (40) (48) (56) (64) (72) (80) (88) (96)
ENGINE
Engine oil Ðevery 6 months RRRRRRRRRRR R
Oil filterÐevery 6 months RRRRRRRRRRR R
PCV valve
AIR CLEANER
Air cleaner filter R R
IGNITION SYSTEM
Spark plugs *4
COOLING SYSTEM
Engine Coolant (green) Replace at first 45,000 miles (72,000 km) or 36
months, after that, every 30,000 miles (48,000 km)
or 24 months
Engine Coolant (yellow) Replace at first 100,000 miles (160,000 km) or 60
months, after that, every 50,000 miles (80,000 km)
or 36 months
Coolant condition and protection,
hoses and clamps Ð annually Ðprior
to cold weather every 12 monthsIII I
CHASSIS AND BODY
Wheel lug nut torque *1 IIIIIIIIIII I
Inspect tires for wear and rotate (X =
recommended interval for optimal
tire life)IXIXXIXXIXX I
Clutch reservoir fluid level IIIIII
Front wheel bearings (4x2) L
Disc brake system I I I I
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183

4. Refer to vehicle emission control information label for spark plug and
gap specifications.
5. The California Air Resources Board has determined that the failure
to perform this maintenance item will not nullify the emission
warranty nor limit recall liability prior to completion of the vehicle's
useful life.
SCHEDULE II ± SPECIAL OPERATING CONDITIONS
If your driving habitsFREQUENTLYinclude one or more of the
following conditions:
²Short trips oflessthan 16 km (10 miles) when outside temperatures
remain below freezing.
²Towing a trailer, or carrying maximum loads.
²Operating in severe dust conditions.
²Operating duringhot weatherin stop-and-go ªrush-hourº traffic.
²Extensive idling, such as police, taxi or door-to-door delivery service.
²High speed operation with a fully loaded vehicle (max. GVW).
²Off-road operation.
Change ENGINE OIL AND OIL FILTER every 3 months or 4,800 km
(3,000 miles) whichever occurs first.
NOTE:Idling the engine for extended periods will accumulate more
hours of use on your vehicle than is actually indicated by the mileage
odometer. Consequently, the odometer reading can be often misleading
when determining the right time to change your engine oil and filter. If
you are using your vehicle in a manner which allows it to remain
stationary while the engine is running for long periods (door-to-door
delivery, taxi, police, power/utility company trucks, or similar duty), then
Mazda recommends you increase the frequency of oil and filter changes
to an interval equivalent to 200 ENGINE HOURS of use. Since most
vehicles are not equipped with hour-meters, it may be necessary for you
to approximate your idle time and plan oil/filter changes accordingly.
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187

Special Operating
Conditions
Replace Engine Oil and Filter
Inspect Brake System
Replace Fuel Filter
Change Automatic Transmission Fluid
Replace Spark Plugs
Replace Engine Air Filter
Change Manual Transmission Fluid
Inspect and Lubricate U-Joints
Lubricate Front Wheel Bearing (4x2)
Change Transfer Case Fluid (4x4)
Suggested Maintenance
Interval3,000
miles or
3 months5,000
miles15,000
miles30,000
miles60,000
milesAs
requiredAs
requiredAs
required30,000
miles60,000
miles
Towing a trailer or
using a camper or
car top carrierXX XX
Extensive idling or
low-speed driving
for long distances
as in heavy
commercial use
such as delivery,
taxi or patrol carX XXXX XX
Operating in dusty
conditions such as
unpaved or dusty
roadsXXX X
Off road operation X X X
For specific recommendations see your authorized Mazda dealer or
qualified service professional.
OWNER MAINTENANCE
Owner Maintenance Schedule
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.
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188

²Check cooling system fluid level and coolant strength.
²Check battery water level (non-maintenance free).
²Check battery connections and clean if necessary.
SERVICE RECOMMENDATIONS
To help you service your vehicle:
²We highlight do-it-yourself items in the engine compartment for easy
location.
²We provide a Scheduled Maintenance section which makes tracking
routine service easy.
If your vehicle requires professional service, your dealership can provide
necessary parts and service. Check your ªWarranty Informationº to find
out which parts and services are covered.
Use only recommended fuels, lubricants, fluids and service parts
conforming to specifications. Genuine Mazda parts are designed and built
to provide the best performance in your vehicle.
PRECAUTIONS WHEN SERVICING YOUR VEHICLE
²Do not work on a hot engine.
²Make sure that nothing gets caught in moving parts.
²Do not work on a vehicle with the engine running in an enclosed
space, unless you are sure you have enough ventilation.
²Keep all open flames and other lit material away from the battery and
all fuel related parts.
Working with the engine off
²Automatic transmission:
1. Set the parking brake and shift to P (Park).
2. Turn off the engine and remove the key.
3. Block the wheels.
²Manual transmission:
1. Set the parking brake, depress the clutch and place the gearshift in 1
(First).
2. Turn off the engine and remove the key.
3. Block the wheels.
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190

ENGINE OIL
Checking the engine oil
Refer to the service maintenance section for the appropriate intervals for
checking the engine oil.
1. Make sure the vehicle is on level ground.
2. Turn the engine off and wait a few minutes for the oil to drain into
the oil pan.
3. Set the parking brake and ensure the gearshift is securely latched in
P (Park) (automatic transmission) or 1 (First) (manual
transmission).
4. Open the hood. Protect yourself from engine heat.
5. Locate and carefully remove the engine oil level indicator (dipstick).
²2.3L I4 engine
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196

²4.0L SOHC V6 engine
SAE 5W-30
²Oil levels above the MAX mark may cause engine damage. Some oil
must be removed from the engine by a service technician.
7. Put the indicator back in and ensure it is fully seated.
Adding engine oil
1. Check the engine oil. For instructions, refer toChecking the engine
oilin this chapter.
2. If the engine oil level is not within the normal range, add only
certified engine oil of the recommended viscosity. Remove the engine
oil filler cap and use a funnel to pour the engine oil into the opening.
3. Recheck the engine oil level. Make sure the oil level is not above the
MAX mark or the letter F in FULL on the engine oil level indicator
(dipstick).
4. Install the indicator and ensure it is fully seated.
5. Fully install the engine oil filler cap by turning the filler cap
clockwise until three clicks can be heard.
To avoid possible oil loss, DO NOT operate the vehicle with the
engine oil level indicator and/or the engine oil filler cap removed.
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199

Engine Oil Recommendations
2.3L & 3.0L Engines
Look for this certification
trademark.
SAE 5W-20 engine oil is recommended.
Only use oils ªCertified For Gasoline Enginesº by the American
Petroleum Institute (API). Use an equivalent oil Mazda specification.
SAE 5W-20 oil provides optimum fuel economy and durability
performance meeting all requirements for your vehicle's engine.
Change your engine oil and filter according to the appropriate schedule
listed in the service maintenance section.
Do not use supplemental engine oil additives, oil treatments or engine
treatments. They are unnecessary and could, under certain conditions,
lead to engine damage which is not covered by your warranty.
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200

4.0L Engine
Look for this certification
trademark.
SAE 5W-30 engine oil is recommended.
Only use oils ªCertified For Gasoline Enginesº by the American
Petroleum Institute (API). Use an equivalent Mazda Specification.
Do not use supplemental engine oil additives, oil treatments or engine
treatments. They are unnecessary and could, under certain conditions,
lead to engine damage which is not covered by your warranty.
Change your engine oil according to the appropriate schedule listed in
the service maintenance section.
Engine Oil Filter Recommendation
Change your engine oil filter according to the appropriate schedule listed
in the service maintenance section. Mazda production and aftermarket
(Mazda) oil filters are designed for added engine protection and long life.
If a replacement oil filter is used that does not meet Mazda Material and
design specifications, start-up engine noises or knock may be
experienced.
It is recommended you use the appropriate Mazda oil filter (or another
brand meeting Mazda specifications) for your engine.
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201