REAR HEATER UNIT INSTALLATION


  1. INSTALL REAR HEATER ASSEMBLY


    1. A003ANA

      Install the rear heater assembly with the 3 screws.

      Note

      Tighten the screws in the order shown in the illustration to install the rear heater assembly.

    2. A003AV6

      Install the 2 water hoses with the 2 clips.

  2. ADD ENGINE COOLANT (for 2TR-FE)


    1. Tighten the radiator drain cock plug by hand.

    2. Tighten the cylinder block water drain cock plug.

      Torque:
      13 N*m  { 130 kgf*cm, 9 ft.*lbf }

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

      Standard Capacity
      Item Specified Condition
      w/o Rear Heater 11.2 liters (11.8 US qts, 9.9 Imp. qts)
      w/ Rear Heater 13.2 liters (13.9 US qts, 11.6 Imp. qts)

      Note

      Never use water as a substitute for engine coolant.

      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).

    4. Remove the 2-way that is located near the throttle body assembly.

    5. When air is bled and the engine coolant drains out, install the 2-way.

    6. Add coolant through the radiator reservoir assembly filler opening until the coolant reaches the B line and install the radiator reservoir cap sub-assembly. [*1]

    7. Warm up the engine until the thermostat opens. While the thermostat is open, circulate the coolant for several minutes. [*2]

      CAUTION:


      • Wear protective gloves.

      • Be careful as the radiator hoses are hot.

      • Keep your hands away from the radiator fans.

      Note


      • Immediately after starting the engine, if the radiator reservoir assembly does not have any engine coolant, perform the following: 1) stop the engine, 2) wait until the engine coolant has cooled down, and 3) add engine coolant.

      • Do not start the engine when there is no engine coolant in the radiator reservoir assembly.

      • Make sure that the needle does not show an abnormally high temperature.

      • If there is not enough engine coolant, the engine may overheat.

      Tech Tips


      • Press the No. 2 and No. 3 radiator hoses several times by hand, and then check the level of the engine coolant.

      • 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.

    8. Stop the engine, and wait until the engine coolant cools down to ambient temperature. [*3]

    9. Check the engine coolant level in the radiator reservoir assembly. [*4]

      Tech Tips


      • If the engine coolant level is below the LOW line, repeat step *1 through *4.

      • If the engine coolant level is above the FULL line, drain engine coolant until the engine coolant level is between the FULL and LOW lines.

  3. ADD ENGINE COOLANT (for 2KD-FTV)


    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. A003EJI

      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. A003FFY

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

  4. ADD ENGINE COOLANT (for 5L-E)


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

      Standard Capacity
      Item Specified Condition
      w/o Heater 12.3 liters (13.0 US qts, 10.8 Imp. qts)
      w/ Front Heater 13.3 liters (14.1 US qts, 11.7 Imp. qts)
      w/ Front and Rear Heaters 15.3 liters (16.2 US qts, 13.5 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).

    2. A003EJI

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

    3. Warm up the engine until the thermostat opens.


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

        Tech Tips

        The thermostat open timing can be confirmed by pressing the inlet radiator hose by hand, and checking when the engine coolant starts to flow inside the hose.

    4. A003FFY

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

  5. CHECK FOR ENGINE COOLANT LEAKS (for 2TR-FE)

    CAUTION:

    Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot 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 or water pump for leaks. If no external leaks are found, check the heater core, cylinder block and cylinder head.

  6. CHECK FOR ENGINE COOLANT LEAKS (for 2KD-FTV)

    CAUTION:

    Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot 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 or water pump for leaks. If no external leaks are found, check the heater core, cylinder block and cylinder head.

  7. CHECK FOR ENGINE COOLANT LEAKS (for 5L-E)

    CAUTION:

    Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot 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 118 kPa (1.2 kgf/cm2, 17.1 psi), and check that the pressure does not drop.

      Tech Tips

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