COOLANT REPLACEMENT

PROCEDURE

1. DRAIN ENGINE COOLANT

   CAUTION:

   Do not remove the reserve tank cap sub-assembly or disconnect the No. 2 radiator hose while the engine and radiator assembly are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.

   1. 

      Remove the clip.

   2. 

      Disconnect the No. 2 radiator hose from the radiator assembly.

   3. Remove the reserve tank cap sub-assembly. Then drain the engine coolant.

      Tip:

      Collect the engine coolant in a container and dispose of it according to the regulations in your area.

2. ADD ENGINE COOLANT

   1. Connect the No. 2 radiator hose to the radiator assembly.

   2. Install the clip.

   3. 

      Remove the bleeder plug cap from the engine water housing cover.

   4. 

      *a	Maximum Line
      *b	Minimum Line

      Slowly pour engine coolant into the radiator reserve tank assembly until it reaches the maximum line.

      Note:

      Do not substitute plain water for engine coolant.

      Tip:

      TOYOTA vehicles are filled with TOYOTA Genuine Premium Long Life Coolant 2WZ-TV at the factory. In order to avoid damage to the engine cooling system and other technical problems, only use TOYOTA Genuine Premium Long Life Coolant 2WZ-TV 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).

   5. After engine coolant begins to flow out of the bleeder plug, install the bleeder plug cap to the engine water housing cover.

   6. Squeeze the No. 1 radiator hose and No. 2 radiator hose several times by hand, and then check the level of the engine coolant.

      If the engine coolant level is low, add engine coolant.

   7. Install the reserve tank cap sub-assembly.

   8. 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, circulate the engine coolant for several minutes.

         Tip:

         The thermostat open timing can be confirmed by squeezing the No. 2 radiator hose by hand, and sensing vibrations when the engine coolant starts to flow inside the No. 2 radiator hose.

      2. Squeeze the No. 1 radiator hose and No. 2 radiator hose several times by hand to bleed air from the system.

         CAUTION:

         When squeezing the No. 1 radiator hose and No. 2 radiator hose:

         • Wear protective gloves.

         • Be careful as the No. 1 radiator hose and No. 2 radiator hose are hot.

         • Keep your hands away from the fan.

         Note:

         • If the coolant temperature gauge indicates an excessive temperature, turn off the engine and let it cool.

         • Make sure that the radiator reserve tank assembly still has some engine coolant in it.

         • If the radiator reserve tank assembly does not have enough engine coolant, the engine may overheat or be seriously damaged.

         • If the radiator reserve tank assembly does not have enough engine coolant, perform the following: 1) stop the engine, 2) wait until the engine coolant has cooled down, and 3) add engine coolant until the radiator reserve tank assembly is filled to the maximum line.

   9. After the engine has cooled down, check that the engine coolant level is between the maximum line and minimum line.

      If the engine coolant level is below the minimum line, add engine coolant to the maximum line.

3. CHECK FOR ENGINE COOLANT LEAK

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