COOLANT REPLACEMENT


  1. REMOVE NO. 1 ENGINE UNDER COVER (for Cold Area Specification Vehicles)


    1. Remove the 4 bolts and No. 1 engine under cover.

  2. DRAIN ENGINE COOLANT

    CAUTION:

    Do not remove the radiator reservoir cap sub-assembly while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.


    1. Loosen the radiator drain cock plug.

      A01BHQ3E01
      Text in Illustration
      *1 Bleeder Plug *2 Radiator Reservoir Cap Sub-assembly
      *3 Radiator Reservoir Assembly *4 Cylinder Block Drain Cock Plug
      *5 Radiator Drain Cock Plug - -

    2. Remove the radiator reservoir cap sub-assembly.

    3. Loosen the cylinder block drain cock plug (on the engine oil cooler cover), and drain the engine coolant.

    4. Tighten the radiator drain cock plug.

    5. Tighten the cylinder block drain cock plug (on the engine oil cooler cover).

      Torque:
      8.0 N*m  { 82 kgf*cm, 71 in.*lbf }

  3. ADD ENGINE COOLANT


    1. Firmly tighten the drain plugs.

    2. Fill the radiator reservoir assembly with engine coolant to the top of the inlet.

      Standard Capacity
      Item Specified Condition
      w/o Heater 13.2 liters (13.9 US qts, 11.6 Imp. qts)
      w/ Front Heater 14.2 liters (15.0 US qts, 12.5 Imp. qts)
      w/ Front and Rear Heaters 16.2 liters (17.1 US qts, 14.3 Imp. qts)

      Note

      Do not substitute plain water for engine coolant.

      Tech Tips


      • Use of improper coolants may damage the engine cooling system.

      • Use only Toyota Super Long Life Coolant or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life hybrid organic acid technology (coolant with long-life hybrid organic acid technology consists of a combination of low phosphates and organic acids).

    3. Loosen the bleeder plug of the outlet housing.

    4. When air is bled and the engine coolant drains out, firmly tighten the bleeder plug.

      Torque:
      8.0 N*m  { 82 kgf*cm, 71 in.*lbf }
    5. A01BGFB

      Add engine coolant up to the B line mark in the radiator reservoir assembly and install the radiator reservoir cap sub-assembly.

    6. Warm up the engine until the thermostat opens.


      1. While the thermostat is open, circulate the engine coolant for several minutes.

        Tech Tips

        The thermostat open timing can be confirmed by pressing the No. 3 radiator hose by hand, and checking when the engine coolant starts to flow inside the hose.

    7. A01BBOM

      After the engine cools down, check that the engine coolant level is between the LOW and FULL level marks.

  4. INSPECT FOR COOLANT LEAK

    CAUTION:

    Do not remove the radiator cap while the engine and radiator are still hot. Hot, pressurized engine coolant and steam may be released and cause serious burns.


    1. Fill the radiator with coolant and attach a radiator cap tester to the radiator.

    2. Warm up the engine.

    3. Using a radiator cap tester, increase the pressure inside the radiator to 137 kPa (1.4 kgf/cm2, 19.9 psi), and check that the pressure does not drop.

      Tech Tips

      If the pressure drops, check the hoses, radiator and water pump for leaks. If no external leaks are found, check the heater core, cylinder block and cylinder head.

  5. INSTALL NO. 1 ENGINE UNDER COVER (for Cold Area Specification Vehicles)


    1. Install the No. 1 engine under cover with the 4 bolts.

      Torque:
      13 N*m  { 133 kgf*cm, 10 ft.*lbf }