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Installation [11/2021 - ]: Procedure

WARNING: This page is about a different car, the 2025 Lexus NX 350, 2024 Lexus NX 350, 2023 Lexus NX 350, and 2022 Lexus NX 350. However, it is still accessible from the selected car via links, so may be relevant.
  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. GTY1077873Courtesy 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. GTY1078563Courtesy 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. GTY1078811Courtesy 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 [11/2021 - ]

  7. ADD ENGINE COOLANT 

    Refer to PROCEDURE - Step 5

  8. INSPECT FOR COOLANT LEAK 

    Refer to PROCEDURE - Step 1

  9. INSTALL NO. 1 ENGINE UNDER COVER 

    Refer to PROCEDURE - Step 83 [11/2021 - 03/2023] , or refer to PROCEDURE - Step 84 [03/2023 - ]

  10. INSTALL FRONT FENDER FRONT SPLASH SHIELD RH 
  11. INSTALL FRONT FENDER FRONT SPLASH SHIELD LH 
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