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Home >> Lexus >> 2024 >> RX 500h >> Repair and Diagnosis >> External Pages >> Different car >> Section 74 (Engine Cooling System - Service Information) >> Flow Shutting Valve >> Removal [10/2022 - 08/2023] >> Procedure

Removal [10/2022 - 08/2023]: Procedure

WARNING: This page is about a different car, the 2025 Lexus RX 450h+, 2025 Lexus RX 350h, 2024 Lexus RX 450h+, 2024 Lexus RX 350h, and 2023 Lexus RX 350h. However, it is still accessible from the selected car via links, so may be relevant.
  1. REMOVE FRONT WHEEL OPENING EXTENSION PAD LH 

    Refer to PROCEDURE - Step 7

  2. REMOVE FRONT WHEEL OPENING EXTENSION PAD RH 

    Refer to PROCEDURE - Step 8

  3. REMOVE NO. 1 ENGINE UNDER COVER 

    Refer to PROCEDURE - Step 9

  4. DRAIN ENGINE COOLANT (for Engine) 

    Refer to PROCEDURE - Step 4

  5. REMOVE INVERTER WITH CONVERTER ASSEMBLY 

    Refer to REMOVAL [10/2022 - ]

  6. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY 

    Refer to REMOVAL [10/2022 - ]

  7. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 3

  8. REMOVE WIRING HARNESS CLAMP BRACKET 
    Refer to PROCEDURE - Step 8
  9. REMOVE FLOW SHUTTING VALVE (WATER BY-PASS HOSE ASSEMBLY) 
    1. GTY1130365Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. GTY1130535Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Retainer - -
      Pull out Pull off
      1. Disconnect the outlet heater water hose connector from the No. 2 water by-pass pipe sub-assembly.
        NOTE:

        Remove any foreign matter on the No. 2 water by-pass pipe sub-assembly and outlet heater water hose connector before performing this work.

        1. Pull out the retainer to disengage the lock claws and pull off the outlet heater water hose connector.

        2. Check that there is no foreign matter on the sealing surfaces of the disconnected water lines. Clean them if necessary.

        3. Cover the disconnected No. 2 water by-pass pipe sub-assembly and outlet heater water hose connector with plastic bags to prevent damage and contamination.

    3. GTY1129676Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Retainer - -
      Pull out Pull off
      1. Disconnect the inlet heater water hose connector from the flow shutting valve (water by-pass hose assembly).
        NOTE:

        Remove any foreign matter on the flow shutting valve (water by-pass hose assembly) and inlet heater water hose connector before performing this work.

        1. Pull out the retainer to disengage the lock claws and pull off the inlet heater water hose connector.

        2. Check that there is no foreign matter on the sealing surfaces of the disconnected water lines. Clean them if necessary.

        3. Cover the disconnected inlet heater water hose connector with a plastic bag to prevent damage and contamination.

    4. GTY1000424Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. GTY1000474Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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