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Home >> Lexus >> 2020 >> LS 500h AWD >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System - Service Information (1 Of 2) >> Radiator >> Removal [09/2019 - 10/2020] >> Procedure

Removal [09/2019 - 10/2020]: Procedure

  1. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY 
  2. REMOVE OIL PAN PROTECTOR (for 2WD) 

    Refer to PROCEDURE - Step 7

  3. REMOVE FRONT SUSPENSION MEMBER BRACE (for AWD) 

    Refer to PROCEDURE - Step 26

  4. REMOVE STRUT BAR BRACKET SUPPORT SUB-ASSEMBLY (for AWD) 

    Refer to PROCEDURE - Step 27

  5. REMOVE V-BANK COVER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 12

  6. REMOVE UPPER RADIATOR SUPPORT SEAL 

    Refer to PROCEDURE - Step 2

  7. REMOVE RADIATOR COVER PLATE 

    Refer to PROCEDURE - Step 1

  8. REMOVE LOWER RADIATOR AIR DEFLECTOR 

    Refer to PROCEDURE - Step 3

  9. REMOVE FRONT BUMPER 
  10. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM 

    Refer to PROCEDURE - Step 4

  11. DRAIN ENGINE COOLANT 

    Refer to PROCEDURE - Step 8

  12. DRAIN COOLANT (for Inverter) 

    Refer to PROCEDURE - Step 6

  13. REMOVE RADIATOR SUPPORT TO CROSSMEMBER BRACE SUB-ASSEMBLY LH 

    Refer to PROCEDURE - Step 18

  14. REMOVE RADIATOR SUPPORT TO CROSSMEMBER BRACE SUB-ASSEMBLY RH 

    Refer to PROCEDURE - Step 17

  15. REMOVE NO. 1 AIR CLEANER INLET 

    Refer to PROCEDURE - Step 8

  16. REMOVE AIR CLEANER ASSEMBLY WITH AIR CLEANER HOSE 

    Refer to PROCEDURE - Step 9

  17. REMOVE VEHICLE APPROACHING SPEAKER ASSEMBLY 

    Refer to PROCEDURE - Step 2

  18. REMOVE LOWER ARM BRACKET BRACE SUB-ASSEMBLY LH 

    Refer to PROCEDURE - Step 16

  19. REMOVE LOWER ARM BRACKET BRACE SUB-ASSEMBLY RH 

    Refer to PROCEDURE - Step 15

  20. REMOVE HOOD LOCK RELEASE LEVER PROTECTOR 

    Refer to PROCEDURE - Step 2

  21. REMOVE HOOD LOCK ASSEMBLY 

    Refer to PROCEDURE - Step 3

  22. REMOVE HIGH PITCHED HORN ASSEMBLY 

    Refer to PROCEDURE - Step 3

  23. REMOVE LOW PITCHED HORN ASSEMBLY 

    Refer to PROCEDURE - Step 4

  24. REMOVE RADIATOR RESERVE TANK ASSEMBLY 
    1. Slide the clip and disconnect the radiator reserve tank hose from the radiator reserve tank assembly.
      GTY818093Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Slide the clip and disconnect the reserve tank outlet hose from the radiator pipe.
      GTY777360Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Radiator Pipe
    3. Disconnect the connectors and detach the clamps.
      GTY818092Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Detach the clamp.
      GTY818091Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Remove the 2 bolts and radiator reserve tank assembly from the fan with motor assembly.
      GTY818088Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  25. REMOVE INVERTER RESERVE TANK ASSEMBLY 
    1. Detach the clamps.
      GTY831755Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 No. 6 Inverter Cooling Hose
    2. Slide the clip and disconnect the No. 6 inverter cooling hose from the inverter cooling pipe.
    3. Slide the clip and disconnect the No. 1 inverter cooling hose from the inverter water pump assembly (with motor).
      GTY790707Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 No. 1 Inverter Cooling Hose
      NOTE:
      • Put pieces of cloth into the pipes and disconnected hoses or cover the pipes and hoses with plastic bags to prevent foreign matter from entering the inverter water pump assembly and cooling system.
      • Do not apply excessive force to the No. 1 inverter cooling hose.
    4. Remove the 2 bolts and inverter reserve tank assembly from the fan with motor assembly.
      GTY836710Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  26. DISCONNECT NO. 2 OIL COOLER OUTLET HOSE 
    1. Slide the clip and disconnect the No. 2 oil cooler outlet hose from the radiator assembly.
      GTY818077Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  27. DISCONNECT TRANSMISSION OIL COOLER HOSE 
    1. Detach the clamp.
      GTY818076Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Slide the clip and disconnect the transmission oil cooler hose from the radiator assembly.
  28. DISCONNECT OIL COOLER INLET HOSE 
    1. Slide the clip and disconnect the oil cooler inlet hose from the radiator pipe.
      GTY968851Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Radiator Pipe
      *a Hold Area
      *b Net Protector
      NOTE:

      Do not remove the oil cooler inlet hose while holding the net protector. If force is applied to the net protector, it may cause the oil cooler inlet hose to crack and lead to engine coolant leaks.

  29. DISCONNECT NO. 1 RADIATOR HOSE 
    1. Slide the clip and disconnect the No. 1 radiator hose from the water outlet sub-assembly.
      GTY818082Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  30. DISCONNECT NO. 3 RADIATOR HOSE 
    1. Detach the clamps from the No. 2 radiator hose and No. 3 radiator hose.
      GTY835264Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 No. 2 Radiator Hose
      *2 No. 3 Radiator Hose
    2. Slide the clip and disconnect the No. 3 radiator hose from the water inlet with thermostat sub-assembly.
  31. DISCONNECT NO. 3 INVERTER COOLING HOSE 
    1. Slide the clip and disconnect the No. 3 inverter cooling hose from the inverter cooling pipe.
      GTY818080Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  32. DISCONNECT ENGINE ROOM MAIN WIRE 
    1. Disconnect the connector.
      GTY824310Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Detach the clamps and disconnect the engine room main wire.
  33. REMOVE HOOD LOCK CONTROL CABLE COVER LH 
    1. Remove the screw.
      GTY826379Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Detach the clamp and disconnect the hood lock control cover LH.
  34. REMOVE HOOD LOCK CONTROL CABLE COVER RH 
    1. Remove the screw.
      GTY826380Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Detach the clamp and disconnect the hood lock control cover RH.
  35. REMOVE UPPER RADIATOR SUPPORT SUB-ASSEMBLY 
    1. Remove the 5 bolts and upper radiator support sub-assembly.
      GTY824306Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Do not allow the cooler condenser assembly to interfere with the radiator assembly.

  36. DISCONNECT LIQUID TUBE SUB-ASSEMBLY A 

    Refer to PROCEDURE - Step 22

  37. DISCONNECT DISCHARGE HOSE SUB-ASSEMBLY 
  38. REMOVE COOLER CONDENSER ASSEMBLY 
    GTY836888Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *1 No. 2 Inverter Cooling Hose
    *2 No. 3 Inverter Cooling Hose
    1. Slide the clip and disconnect the No. 2 inverter cooling hose and No. 3 inverter cooling hose from the radiator assembly.
    2. Detach the claw.
    3. While lifting the cooler condenser assembly in the direction of the arrow shown in the illustration, detach the guide and remove the cooler condenser assembly.
      NOTE:
      • When removing the cooler condenser assembly, do not damage the cooler condenser assembly and radiator assembly.
      • Prepare a drain pan or cloth in case the coolant leaks.
      GTY786268Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction - -
  39. REMOVE RADIATOR ASSEMBLY 
    1. Remove the radiator assembly from the vehicle together with the fan with motor assembly as shown in the illustration.
      NOTE:
      • Perform the following procedure with 2 or more people to prevent damage to the radiator assembly.
      • When removing the radiator assembly from the vehicle, do not apply excessive force to the cooler pipe or cooling hoses.
      • Prepare a drain pan or cloth in case the coolant leaks.
      GTY832787Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction - -
  40. REMOVE RADIATOR RESERVE TANK HOSE 
    1. Slide the clip and remove the radiator reserve tank hose from the radiator assembly.
      GTY819018Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  41. REMOVE REAR RADIATOR SIDE AIR GUIDE PLATE LH 
    1. Detach the claw and remove the rear radiator side air guide plate LH.
      GTY819017Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  42. REMOVE NO. 3 INVERTER COOLING HOSE 
    1. Detach the clamps.
      GTY809608Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Clip
      Bolt
    2. Remove the clip, bolt and No. 3 inverter cooling hose from the radiator assembly.
  43. REMOVE NO. 1 RADIATOR HOSE 
    1. Detach the clamp.
      GTY824300Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Slide the clip and remove the No. 1 radiator hose from the radiator assembly.
  44. REMOVE DISCHARGE HOSE SUB-ASSEMBLY 
    1. Detach the clamp and remove the discharge hose sub-assembly from the fan with motor assembly.
      GTY824299Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  45. REMOVE REAR RADIATOR SIDE AIR GUIDE PLATE RH 
    1. Detach the claw and remove the rear radiator side air guide plate RH.
      GTY824294Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  46. REMOVE NO. 2 RADIATOR HOSE 
    1. Detach the clamp.
      GTY831703Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 No. 2 Radiator Hose
      *2 No. 3 Radiator Hose
    2. Slide the clip and remove the No. 2 radiator hose with No. 3 radiator hose from the radiator assembly.
  47. REMOVE NO. 2 INVERTER COOLING HOSE 
    1. Slide the hose clip and disconnect the No. 2 inverter cooling hose from the inverter water pump assembly (with motor).
      GTY789988Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Hose Clip
      Clip
      NOTE:
      • Put pieces of cloth into the pipes and disconnected hoses or cover the pipes and hoses with plastic bags to prevent foreign matter from entering the inverter water pump assembly and cooling system.
      • Do not apply excessive force to the No. 2 inverter cooling hose.
    2. Detach the clamp.
    3. Remove the 2 clips and No. 2 inverter cooling hose.
  48. REMOVE NO. 5 ENGINE ROOM WIRE 
    1. Detach the clamps and disconnect the connector and remove the No. 5 engine room wire.
      GTY838070Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  49. REMOVE INVERTER WATER PUMP ASSEMBLY (WITH MOTOR) 
    1. Remove the 2 bolts and inverter water pump assembly (with motor).
      GTY838071Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  50. REMOVE FAN WITH MOTOR ASSEMBLY 
    1. Remove the 2 bolts.
      GTY824295Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Detach the 2 guides and remove the fan with motor assembly from the radiator assembly.
  51. REMOVE SUB-RADIATOR SUPPORT CUSHION 
    1. Remove the 2 sub-radiator support cushions from the radiator assembly.
      GTY838068Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  52. REMOVE LOWER RADIATOR SUPPORT 
    1. Remove the 2 lower radiator supports from the radiator assembly.
      GTY824282Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  53. REMOVE NO. 1 RADIATOR SUPPORT TO SEAL 
    1. Upper Side:
      1. Remove the No. 1 radiator to support seal from the radiator assembly.
        GTY824288Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Lower Side:
      1. Remove the No. 1 radiator to support seal from the radiator assembly.
        GTY824281Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  54. REMOVE NO. 2 RADIATOR SUPPORT TO SEAL 
    1. Remove the No. 2 radiator support to seal from the radiator assembly.
      GTY838069Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  55. REMOVE NO. 3 RADIATOR SUPPORT TO SEAL 
    1. Remove the No. 3 radiator support to seal from the radiator assembly.
      GTY824286Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  56. REMOVE NO. 4 RADIATOR SUPPORT TO SEAL 
    1. Remove the No. 4 radiator support to seal from the radiator assembly.
      GTY824297Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  57. REMOVE NO. 5 RADIATOR SUPPORT TO SEAL 
    1. Remove the No. 5 radiator support to seal from the radiator assembly.
      GTY824296Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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