COOLANT (for Engine) REPLACEMENT


  1. DRAIN COOLANT (for Engine)

    Note

    Do not remove the reserve tank cap and radiator drain cock plug while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.


    1. A003Z8O

      Loosen the radiator drain cock plug.

      Tech Tips

      Collect the coolant in a container and dispose of it according to the local regulations.

    2. Remove the reserve tank cap and drain the coolant.

      A003ZHYE01
      Text in Illustration
      *1 Reserve Tank Cap *2 Radiator Drain Cock Plug

  2. ADD COOLANT (for Engine)


    1. Tighten the radiator drain cock plug.

    2. A003ZK5E01
      Text in Illustration
      *1 B Line

      Add coolant to B line of the reserve tank.

      Standard Capacity
      Item Capacity
      Engine coolant

      w/ Exhaust Heat Recirculation System:

      6.9 liters (7.3 US qts, 6.1 lmp. qts)

      w/o Exhaust Heat Recirculation System:

      6.5 liters (6.9 US qts, 5.7 lmp. qts)

      Tech Tips

      TOYOTA vehicles are filled with TOYOTA SLLC at the factory. In order to avoid damage to the engine cooling system and other technical problems, only use TOYOTA SLLC or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, non-borate coolant with long-life hybrid organic acid technology (coolant with long-life hybrid organic acid technology is a combination of low phosphates and organic acids).

      Note

      Never use water as a substitute for engine coolant.

    3. Squeeze the radiator hoses several times by hand, and then check the level of the coolant.

      If the coolant level is low, add coolant.

    4. Put the engine in inspection mode Click here.

    5. Install the reserve tank cap.

    6. Bleed air from the cooling system.

      Note


      • Before starting the engine, turn the A/C switch off.

      • Adjust the heater control to the maximum hot setting.

      • Adjust the blower speed to the low setting.


      1. Warm up the engine until the thermostat opens. While the thermostat is open, allow the coolant to circulate for several minutes. (●1)

        Tech Tips

        The thermostat opening timing can be confirmed by squeezing the inlet radiator hose by hand, and sensing vibrations when the engine coolant starts to flow inside the hose.

        CAUTION:

        When squeezing the radiator hose:

        • Wear protective gloves.

        • Be careful as the radiator hoses are hot.

        • Keep your hands away from the radiator fans.

      2. Stop the engine and wait until the coolant cools down. Then if the coolant level is below the low line, add coolant so that the level will be between the full and low lines. (●2)

      3. Repeat the steps from (●1) to (●2) until the coolant level of the reserve tank remains above the low line.

    7. A003ZK5E02
      Text in Illustration
      *1 Full Line
      *2 Low Line

      After the engine has cooled down, check that the coolant level is between the full and low lines.

      If the coolant level is low, add coolant to the full line on the reserve tank.

  3. INSPECT FOR COOLANT LEAK (for Engine)

    CAUTION:

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

    Note

    Before performing each inspection, turn the A/C switch off.


    1. Remove the reserve tank cap.

    2. A003VSX

      Fill the reserve tank with coolant, and then attach a radiator cap tester.

    3. Put the engine in inspection mode Click here.

    4. Warm up the engine.

    5. Using a radiator cap tester, increase the pressure inside the radiator to 108 kPa (1.1 kgf/cm2, 16 psi), and check that the pressure does not drop. If the pressure drops, check the hoses, radiator, front exhaust pipe assembly, the heater hose around the engine coolant temperature sensor and engine water pump assembly for leaks. If no external leaks are found, check the heater core, cylinder block and cylinder head.

    6. Remove the radiator cap tester.

    7. Install the reserve tank cap.