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Home >> Mazda >> 2005 >> 3 SP23, 4D Hatchback, Automatic >> Repair and Diagnosis >> Engine Mechanical >> Cooling Fan >> Cooling System >> Radiator Drain Plug Replacement

Radiator Drain Plug Replacement

  1. Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT 
  2. Loosen the radiator drain plug completely.
  3. Using a flathead screwdriver or equivalent, pry out the radiator drain plug.
    CAUTION:
    • Do not apply excessive force to the flathead screwdriver or equivalent as doing so can damage the drain bore. Slowly and carefully pry out the radiator drain plug when removing it.
    Fig 1: Prying Out Radiator Drain Plug
    G03635829Courtesy of MAZDA MOTORS CORP.
  4. Install a new radiator drain plug with a new O-ring.

    Tightening torque 

    1. 1.2-1.5 N.m {13-15 kgf.cm, 11-13 in.lbf} 
  5. Add engine coolant. (See ENGINE COOLANT REPLACEMENT