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Home >> Lexus >> 2024 >> RX 500h >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System - Service Information >> Water Control Valve >> Installation [10/2022 - ] >> Procedure

Installation [10/2022 - ]: Procedure

  1. INSTALL WATER CONTROL VALVE 

    Torque: 21 N.m (214 kgf/cm, 15 ft.lbf) 

  2. CONNECT INLET HEATER WATER HOSE 
  3. CONNECT WATER BY-PASS HOSE ASSEMBLY 
    1. GTY1129895Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a View A *b 120°
      *c Upper Side *d LH Side
      *e 2 to 7 mm (0.0787 to 0.276 in.) - -
      1. Connect the water by-pass hose assembly to the water control valve and slide the clip to secure it.
        NOTE:
        • Make sure to slide the water by-pass hose assembly until it contacts the hose stopper of the water control valve.
        • Make sure that the tabs of the clip are within the area shown in the illustration.
  4. CONNECT NO. 3 WATER BY-PASS HOSE 
    1. GTY1133393Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a View A *b 90°
      *c Upper Side *d Front Side
      1. Connect the No. 3 water by-pass hose to the water control valve and slide the clip to secure it.
        NOTE:
        • Make sure to slide the No. 3 water by-pass hose until it contacts the hose stopper of the water control valve.
        • Make sure that the tabs of the clip are within the area shown in the illustration.
  5. CONNECT NO. 1 RADIATOR HOSE 
    1. GTY1133439Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a View A *b 120°
      *c Upper Side *d LH Side
      *e 2 to 7 mm (0.0787 to 0.276 in.) - -
      1. Connect the No. 1 radiator hose to the water control valve and slide the clip to secure it.
        NOTE:
        • Make sure to slide the No. 1 radiator hose until it contacts the hose stopper of the water control valve.
        • Make sure that the tabs of the clip are within the area shown in the illustration.
  6. INSTALL INTAKE MANIFOLD WITH INTERCOOLER ASSEMBLY 

    Refer to INSTALLATION [10/2022 - ]

  7. ADD ENGINE COOLANT (for Engine) 

    Refer to PROCEDURE - Step 5

  8. INSPECT FOR COOLANT LEAK (for Engine) 

    Refer to PROCEDURE - Step 1

  9. INSTALL NO. 1 ENGINE UNDER COVER 

    for 1Motor-HEV Model: Refer to PROCEDURE - Step 79

    for Gasoline Model: Refer to PROCEDURE - Step 85

  10. INSTALL FRONT WHEEL OPENING EXTENSION PAD RH 
  11. INSTALL FRONT WHEEL OPENING EXTENSION PAD LH