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Home >> Lexus >> 2021 >> LC 500 2D Convertible >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Automatic Transmission System - Service Information (Convertible) (1 Of 2) >> Oil Cooler >> Installation [05/2023 - ] >> Procedure

Installation [05/2023 - ]: Procedure

  1. INSTALL OIL COOLER BRACKET 
    1. Install the oil cooler bracket with the 3 bolts.

      Torque: 6.0 N.m (61 kgf/cm, 53 in.lbf) 

      GTY813469Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSTALL NO. 2 TRANSMISSION OIL COOLER BRACKET (w/ Air Cooled Transmission Oil Cooler) 
    1. Install the No. 2 transmission oil cooler bracket with the nut.

      Torque: 8.0 N.m (82 kgf/cm, 71 in.lbf) 

      GTY1242098Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Stopper
      NOTE:

      Install with the No. 2 transmission oil cooler bracket stopper pressed against the oil cooler bracket.

  3. INSTALL OIL COOLER ASSEMBLY 
    1. Install the oil cooler assembly with the 3 bolts.

      Torque: 6.0 N.m (61 kgf/cm, 53 in.lbf) 

      GTY835680Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSTALL WIRE HARNESS CLAMP BRACKET 
    1. Install the wire harness clamp bracket with the nut.
      GTY777111Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

  5. CONNECT WIRE HARNESS 
    1. Attach the 2 clamps and connect the wire harness.
      GTY827716Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. CONNECT RADIATOR HOSE SUB-ASSEMBLY 
    1. Connect the radiator hose sub-assembly to the oil cooler assembly, and slide the hose clip to secure the hose.
      GTY822517Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a 2.0 to 5.0 mm (0.0787 to 0.197 in.)
      *b Paint Mark (Front Side of Vehicle)
      *c Permissible range for paint mark position
      *d Outside permissible range for paint mark position
      *e Clamp range 120°
      *f Front of vehicle
      *g Left side of vehicle
      NOTE:
      • The hose clip claw position is within the range shown in the illustration.
      • Do not deform the oil cooler assembly.
      • Install the radiator hose sub-assembly so that its paint marks are within the allowable range (3 paint lines) of the paint marks of the oil cooler assembly.
      • Water or washer fluid can be used to assist with inserting the hose, however when using liquid other than water, dilute it to 50% concentration or less before use.
      • When installing the radiator hose sub-assembly, do not twist the radiator hose sub-assembly.
  7. INSTALL NO. 1 OIL COOLER INLET HOSE (w/ Air Cooled Transmission Oil Cooler) 
    1. Install the No. 1 oil cooler inlet hose to the No. 1 oil cooler inlet tube and oil cooler assembly, and slide the 2 hose clips to secure the hose.
      GTY1242556Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Paint Mark
      *b 2.0 to 7.0 mm (0.0787 to 0.276 in.)
      *c 0 to 3.0 mm (0 to 0.118 in.)
      *d Upper side of vehicle
      *e Clamp Range 90°
      NOTE:
      • Do not deform the oil cooler assembly.
      • When connecting the hose, align with the colors and positions of the paint mark before connecting.
      • When installing the No. 1 oil cooler inlet hose, do not twist the No. 1 oil cooler inlet hose.
      • The hose clip claw position is within the range shown in the illustration.
  8. INSTALL NO. 1 OIL COOLER OUTLET HOSE (w/o Air Cooled Transmission Oil Cooler) 
    1. Install the No. 1 oil cooler outlet hose to the No. 1 oil cooler outlet tube and oil cooler assembly, and slide the 2 hose clips to secure the hose.
      GTY955130Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a 2.0 to 7.0 mm (0.0787 to 0.276 in.)
      *b Paint Mark
      NOTE:
      • Do not deform the oil cooler assembly.
      • When connecting the hose, align with the colors and positions of the paint mark before connecting.
      • When installing the No. 1 oil cooler outlet hose, do not twist the No. 1 oil cooler outlet hose.
  9. INSTALL NO. 1 OIL COOLER OUTLET HOSE (w/ Air Cooled Transmission Oil Cooler) 
    1. Install the No. 1 oil cooler outlet hose to the No. 2 oil cooler assembly and No. 1 oil cooler outlet tube, and slide the 2 hose clips to secure the hose.
      GTY1242946Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Paint Mark
      *b 2.0 to 7.0 mm (0.0787 to 0.276 in.)
      *c 0 to 3.0 mm (0 to 0.118 in.)
      *d Clamp Range 90°
      *e Front of vehicle
      *f Clamp Range 120°
      NOTE:
      • No. 1 Oil Cooler Outlet Tube Side:

        When connecting the hose, align with the colors and positions of the paint mark before connecting.

      • No. 2 Oil Cooler Assembly Side:

        The paint marks must be facing the front side of the vehicle.

      • When installing the No. 1 oil cooler outlet hose, do not twist the No. 1 oil cooler outlet hose.
      • The hose clip claw position is within the range shown in the illustration.
      • Do not deform the No. 2 oil cooler assembly.
    2. Attach the 2 clamps and connect the No. 1 oil cooler outlet hose.
  10. INSTALL NO. 1 OIL COOLER INLET HOSE (w/o Air Cooled Transmission Oil Cooler) 
    1. GTY813467Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Install the No. 1 oil cooler inlet hose to the radiator assembly and No. 1 oil cooler inlet tube, and slide the 2 hose clips to secure the hose.

      NOTE:
      • When connecting the hose, align with the colors and positions of the paint mark before connecting.
      • When installing the No. 1 oil cooler inlet hose, do not twist the No. 1 oil cooler inlet hose.
  11. INSTALL NO. 3 TRANSMISSION OIL COOLER HOSE (w/ Air Cooled Transmission Oil Cooler) 
    1. Install the No. 3 transmission oil cooler hose to the No. 1 oil cooler tube sub-assembly without hose and No. 2 oil cooler assembly, and slide the 2 hose clips to secure the hose.
      GTY1242251Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Paint Mark
      *b 2.0 to 7.0 mm (0.0787 to 0.276 in.)
      *c 0 to 3.0 mm (0 to 0.118 in.)
      *d Front of vehicle
      *e Clamp Range 120°
      NOTE:
      • No. 1 Oil Cooler Tube Sub-assembly without Hose:

        When connecting the hose, align with the colors and positions of the paint mark before connecting.

      • No. 2 Oil Cooler Assembly Side:

        The paint marks must be facing the front side of the vehicle.

      • When installing the No. 3 transmission oil cooler hose, do not twist the No. 3 transmission oil cooler hose.
      • The hose clip claw position is within the range shown in the illustration.
      • Do not deform the No. 2 oil cooler assembly.
    2. Attach the 2 clamps and connect the No. 3 transmission oil cooler hose.
  12. CONNECT NO. 3 RADIATOR HOSE 

    Refer to PROCEDURE - Step 28

  13. INSTALL WATER BY-PASS HOSE 
    1. Install the water by-pass hose to the oil cooler assembly and No. 3 radiator hose, and slide the 2 hose clips to secure the hose.
      GTY836000Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a 2.0 to 5.0 mm (0.0787 to 0.197 in.)
      *b Paint Mark (Front Side of Vehicle)
      *c Permissible range for paint mark position
      *d Outside permissible range for paint mark position
      *e Clamp range 120°
      *f Front of vehicle
      *g Left side of vehicle
      NOTE:
      • The hose clip claw position is within the range shown in the illustration.
      • Do not deform the oil cooler assembly.
      • When installing the water by-pass hose, do not twist the water by-pass hose.
      • Water or washer fluid can be used to assist with inserting the hose, however when using liquid other than water, dilute it to 50% concentration or less before use.
      • Install the radiator hose sub-assembly so that its paint marks are within the allowable range (3 paint lines) of the paint marks of the oil cooler assembly.
  14. INSTALL NO. 2 TRANSMISSION OIL COOLER HOSE (w/ Air Cooled Transmission Oil Cooler) 
    1. Install the No. 2 transmission oil cooler hose to the oil cooler assembly and No. 1 oil cooler tube sub-assembly without hose, and slide the 2 hose clips to secure the hose.
      GTY1242525Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Paint Mark
      *b 2.0 to 7.0 mm (0.0787 to 0.276 in.)
      *c 0 to 3.0 mm (0 to 0.118 in.)
      NOTE:
      • Do not deform the oil cooler assembly.
      • When connecting the hose, align with the colors and positions of the paint mark before connecting.
      • When installing the No. 2 transmission oil cooler hose, do not twist the No. 2 transmission oil cooler hose.
      • The hose clip position is within the range shown in the illustration.
    2. Attach the clamp and connect the No. 2 transmission oil cooler hose to the water by-pass hose.
  15. INSTALL NO. 4 TRANSMISSION OIL COOLER HOSE (w/o Air Cooled Transmission Oil Cooler) 
    1. Install the No. 4 transmission oil cooler hose to the radiator assembly and oil cooler assembly, and slide the 2 hose clips to secure the hose.
      GTY955140Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a 2.0 to 7.0 mm (0.0787 to 0.276 in.)
      *b Paint Mark
      NOTE:
      • Do not deform the oil cooler assembly.
      • When connecting the hose, align with the colors and positions of the paint mark before connecting.
      • When installing the No. 4 transmission oil cooler hose, do not twist the No. 4 transmission oil cooler hose.
    2. Attach the clamp and connect the No. 4 transmission oil cooler hose to the water by-pass hose.
  16. INSTALL RADIATOR RESERVE TANK ASSEMBLY 

    Refer to PROCEDURE - Step 30

  17. INSTALL INTAKE AIR CONNECTOR PIPE 

    Refer to PROCEDURE - Step 27

  18. INSTALL AIR CLEANER WITH ELEMENT ASSEMBLY RH 

    Refer to PROCEDURE - Step 104

  19. INSTALL AIR CLEANER HOSE ASSEMBLY 

    Refer to PROCEDURE - Step 2

  20. INSTALL RADIATOR SUPPORT TO CROSSMEMBER BRACE SUB-ASSEMBLY RH 

    Refer to PROCEDURE - Step 13

  21. ADD ENGINE COOLANT 

    Refer to PROCEDURE - Step 12

  22. INSTALL LOWER RADIATOR AIR DEFLECTOR 

    Refer to PROCEDURE - Step 8

  23. INSTALL RADIATOR SUPPORT TO FRAME SEAL RH 

    Refer to PROCEDURE - Step 10

  24. INSTALL RADIATOR SUPPORT TO FRAME SEAL LH 

    Refer to PROCEDURE - Step 9

  25. INSTALL V-BANK COVER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 150

  26. ADD AUTOMATIC TRANSMISSION FLUID 

    See step  3

  27. ADJUST AUTOMATIC TRANSMISSION FLUID 

    Refer to ADJUSTMENT [07/2020 - ] 

  28. INSPECT FOR COOLANT LEAK 

    Refer to PROCEDURE - Step 3

  29. INSTALL STRUT BAR BRACKET SUPPORT SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 140

  30. INSTALL NO. 2 ENGINE UNDER COVER ASSEMBLY 

    Refer to PROCEDURE - Step 141

  31. INSTALL NO. 1 ENGINE UNDER COVER ASSEMBLY 

    Refer to PROCEDURE - Step 146

  32. INSTALL FRONT SUSPENSION MEMBER BRACE SUB-ASSEMBLY RH 

    Refer to PROCEDURE - Step 143

  33. INSTALL FRONT SUSPENSION MEMBER BRACE SUB-ASSEMBLY LH 

    Refer to PROCEDURE - Step 142

  34. INSTALL FRONT FENDER SEAL RH 

    Refer to PROCEDURE - Step 21

  35. INSTALL FRONT FENDER SEAL LH 

    Refer to PROCEDURE - Step 22

  36. AFTER FILLING TRANSMISSION 

    See step  5

  37. ATF THERMAL DEGRADATION ESTIMATE RESET 
    NOTE:

    Approximately 50% or more of the ATF has been replaced during a repair of the transmission or a similar operation.

    Refer to INITIALIZATION [07/2020 - ]

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