Oil Cooler Removal/Installation: Notes

1999 Mazda 626 ES, 2.5 D, StandardSECTION Notes
WARNING: This page is about a different car, the 2005 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery cable.
  2. Drain the engine coolant. (See COOLING SYSTEM SERVICE WARNINGS .) (See ENGINE COOLANT REPLACEMENT )
  3. Remove the oil filter (See OIL FILTER REPLACEMENTΒ .)
  4. Remove in the order indicated in the table.
  5. Install in the reverse order of removal.
  6. Inspect the engine oil level. (See ENGINE OIL LEVEL INSPECTIONΒ .)
  7. Start the engine and inspect for engine oil leakage.
    Fig 1: Identifying Oil Cooler Components
    G03699809Courtesy of MAZDA MOTORS CORP.
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When to See a Mechanic

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

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