1998 Mazda 626 ES, AutomaticFACTORY OEM SERVICE PROCEDURE

Service Intervals & Specifications

REPLACEMENT INTERVALS

Component Miles
Air Filter 30,000
Camshaft Timing Belt
B2500 (1)
MPV, 626, Protege
Calif. & Massachusetts (2) 105,000
Except Calif. & Massachusetts 60,000
Millenia
Calif. (2) 105,000
Except Calif. 60,000
Coolant (3)
Engine Oil
B2500, B3000 & B4000 5000
All Others 7500
Engine Oil Filter
B2500, B3000 & B4000 5000
All Others 7500
Fuel Filter
B2500, B3000 & B4000 30,000
All Others 60,000
Spark Plugs
B2500, B3000 & B4000 100,000
Millenia
2.3L 60,000
2.5L 30,000
All Others 30,000
(1) Inspect timing belt at 120,000 miles.
(2) Inspect timing belt at 60,000 miles and again at 90,000 miles. Replace belt at 105,000 miles.
(3) Replace coolant at 45,000 miles (50,000 miles on B2500, B3000 and B4000), then every 30,000 miles.
BELT ADJUSTMENT (USING BELT TENSION GAUGE)

Application New Belt (1) Used Belt Lbs. (kg)
B2500, B3000 & B4000 (2) (2)
Millenia
2.3L (2) (2)
2.5L
Generator 160-190 (70-90) 110-150 (50-70)
Power Steer. 130-150 (55-70) 88-120 (40-55)
MPV
A/C Comp. 115-129 (52-59) 97-112 (44-51)
Generator 124-143 (56-65) 104-123 (47-56
Power Steer. 77-85 (35-39) 66-74 (30-34)
Protege
A/C Comp. 110-130 (50-60) 95-110 (43-50)
Generator 110-160 (50-76) 110-150 (50-72)
Power Steer. 110-130 (50-60) 95-110 (43-50)
626
2.0L
A/C Comp. 160-180 (70-90) 110-150 (50-70)
Generator 170-180 (75-85) 110-150 (50-70)
Power Steer. 140-170 (60-80) 110-150 (50-70)
2.5L
A/C Comp. 160-190 (70-90) 110-150 (50-70)
Generator 160-190 (70-90) 110-150 (50-70)
Power Steer. 130-150 (55-70) 88-120 (40-55)
(1) Used belt is a belt in operation for more than 5 minutes.
(2) Serpentine belt is used with automatic belt tensioner. Tension is correct if indicator is within limit marks.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.