Coolant On-Vehicle Inspection

Engine. Lexus Gs430, Gs300. Uzs190 Grs190
3Gr-Fe Cooling. Lexus Gs430, Gs300. Uzs190 Grs190

  1. REMOVE ENGINE UNDER COVER

  2. REMOVE V-BANK COVER SUB-ASSEMBLY

  3. REMOVE COOL AIR INTAKE DUCT SEAL

  4. REMOVE NO. 1 AIR CLEANER INLET

  5. DRAIN ENGINE COOLANT

  6. ADD ENGINE COOLANT

  7. CHECK FOR ENGINE COOLANT LEAKS

  8. INSTALL NO. 1 AIR CLEANER INLET

  9. INSTALL COOL AIR INTAKE DUCT SEAL

  10. INSTALL V-BANK COVER SUB-ASSEMBLY

  11. INSTALL ENGINE UNDER COVER

Coolant -- On-Vehicle Inspection



1. REMOVE ENGINE UNDER COVER


Lexus Gs430, Gs300. Uzs190 Grs190
  1. Using a clip remover, remove the 3 clips.

  1. Remove the 10 screws and under cover.



2. REMOVE V-BANK COVER SUB-ASSEMBLY
  1. Remove the 2 nuts and cover.



3. REMOVE COOL AIR INTAKE DUCT SEAL


Lexus Gs430, Gs300. Uzs190 Grs190
  1. Using a clip remover, remove the 7 clips and duct seal.



4. REMOVE NO. 1 AIR CLEANER INLET
  1. Remove the bolt and inlet.



5. DRAIN ENGINE COOLANT
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. Remove the radiator cap and reservoir cap.



  1. Loosen the radiator drain cock plug and 2 cylinder block drain cock plugs. Then drain the coolant.

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


    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fe Cooling.Cooling System.Coolant  On-Vehicle Inspection



6. ADD ENGINE COOLANT
  1. Tighten all the plugs and fill the radiator with TOYOTA Super Long Life Coolant (SLLC).

    Torque:
    12.7 N*m{130 kgf*cm, 9 ft.*lbf} for cylinder block drain cock plug
  1. Add engine coolant.

    Specified capacity:
    9.1 liters (9.6 US qts, 8.0 lmp. qts)
    HINT:
    1. 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 consists of a combination of low phosphates and organic acids).
    1. Please contact your TOYOTA dealer for further details.
  1. Slowly pour coolant into the radiator reservoir until it reaches the FULL line.

  1. Press the inlet and outlet radiator hoses several times by hand, and then check the level of the coolant.
    If the coolant level is low, add coolant.

  1. Install the radiator cap and reservoir cap.

  1. Bleed air from the cooling system.

    1. Warm up the engine until the thermostat opens. While the thermostat is open, circulate the coolant for several minutes.

      HINT:
      Adjust the air conditioner set temperature to MAX (HOT).
    2. Maintain the engine speed at 2,000 to 2,500 rpm.

    3. Press the inlet and outlet radiator hoses several times by hand to bleed air.

      NOTICE:
      When pressing the radiator hoses:
      1. Wear protective gloves.
      1. Be careful as the radiator hoses are hot.
      1. Keep your hands away from the radiator fan.
  1. Stop the engine, and wait until the engine coolant cools down to ambient temperature.

    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.


    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fe Cooling.Cooling System.Coolant  On-Vehicle Inspection
  1. Check the coolant level in the radiator reservoir.
    If the coolant level is low, add SLLC to the radiator reservoir FULL line.



7. CHECK FOR ENGINE COOLANT LEAKS
  1. Check for engine coolant leaks (Click here).



8. INSTALL NO. 1 AIR CLEANER INLET
  1. Install the inlet with the bolt.

    Torque:
    5.0 N*m{51 kgf*cm, 44 in.*lbf}


9. INSTALL COOL AIR INTAKE DUCT SEAL


Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the duct seal with the 7 clips.



10. INSTALL V-BANK COVER SUB-ASSEMBLY
  1. Install the cover with the 2 nuts.

    Torque:
    5.0 N*m{51 kgf*cm, 44 in.*lbf}


11. INSTALL ENGINE UNDER COVER


Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the under cover with the 3 clips and 10 screws.