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Home >> Lexus >> 2020 >> LS 500h AWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical System - Service Information (4 Of 5) >> Engine Assembly >> Installation [10/2023 - ] >> Procedure

Installation [10/2023 - ]: Procedure

  1. INSTALL ENGINE HANGER 

    Refer to PROCEDURE - Step 88

  2. REMOVE ENGINE STAND 
    1. Attach an engine sling device and hang the engine with a chain block.
      NOTE:

      Pay attention to the angle of the sling device as the engine assembly or engine hangers may be damaged or deformed if the angle is incorrect.

    2. Lift the engine and remove it from the engine stand.
      NOTE:

      With the exception of installing the engine assembly to an engine stand or removing the engine assembly from an engine stand, do not perform any work on the engine while it is suspended, as doing so is dangerous.

    3. Place the engine onto a work bench.
  3. INSTALL REAR ENGINE MOUNTING INSULATOR 

    Refer to PROCEDURE - Step 5

  4. INSTALL REAR ENGINE MOUNTING MEMBER 
    1. Install the rear engine mounting member to the rear engine mounting insulator with the 3 nuts.

      Torque: 41 N.m (418 kgf/cm, 30 ft.lbf) 

      GTY785657Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. INSTALL FRONT ENGINE MOUNTING INSULATOR 

    HINT: 

    Only perform this procedure when replacement of the engine mounting insulator is necessary.

    1. Install the 2 front engine mounting insulators with the 4 nuts.

      Torque: 65 N.m (663 kgf/cm, 48 ft.lbf) 

      GTY830755Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a LH Side
      *b RH Side
  6. CONNECT FRONT FRAME ASSEMBLY 
    1. Install the front frame assembly to the engine assembly with the 2 bolts.

      Torque: 57 N.m (581 kgf/cm, 42 ft.lbf) 

      GTY797058Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a LH Side
      *b RH Side
  7. INSTALL FRONT DIFFERENTIAL CARRIER ASSEMBLY 

    Refer to PROCEDURE - Step 1

  8. INSTALL FRONT DRIVE SHAFT ASSEMBLY LH 

    Refer to PROCEDURE - Step 2

  9. INSTALL FRONT DRIVE SHAFT ASSEMBLY RH 

    Refer to PROCEDURE - Step 3

  10. INSTALL FLYWHEEL SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 2

  11. INSTALL TRANSMISSION INPUT DAMPER COVER ASSEMBLY 

    Refer to PROCEDURE - Step 3

  12. INSTALL HYBRID VEHICLE TRANSMISSION ASSEMBLY 

    Refer to INSTALLATION [10/2023 - ]

  13. INSTALL FLYWHEEL HOUSING SIDE COVER 

    Refer to PROCEDURE - Step 8

  14. TEMPORARILY INSTALL FRONT PROPELLER SHAFT ASSEMBLY 

    Refer to PROCEDURE - Step 1

  15. TIGHTEN FRONT PROPELLER SHAFT ASSEMBLY 

    Refer to PROCEDURE - Step 3

  16. INSTALL EXHAUST MANIFOLD ASSEMBLY LH 

    Refer to PROCEDURE - Step 5

  17. INSTALL EXHAUST MANIFOLD ASSEMBLY RH 

    Refer to PROCEDURE - Step 4

  18. CONNECT AIR FUEL RATIO SENSOR 

    Refer to PROCEDURE - Step 8

  19. INSTALL NO. 1 EGR PIPE 

    Refer to PROCEDURE - Step 5

  20. INSTALL ENGINE OIL LEVEL DIPSTICK GUIDE 
    1. Install a new O-ring to the engine oil level dipstick guide.
    2. Apply a light coat of engine oil to the O-ring.
    3. Push in the engine oil level dipstick guide end into the guide hole.
    4. Install the engine oil level dipstick guide with the bolt.

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

  21. INSTALL ENGINE AND TRANSMISSION ASSEMBLY 
    1. Set the engine on an engine lifter.
      NOTE:
      • Place wooden blocks or plate lift attachments so that the engine is level.
      • With the exception of installing the engine assembly to an engine stand or removing the engine assembly from an engine stand, do not perform any work on the engine while it is suspended, as doing so is dangerous.
      • Never install attachments to the oil pan of the engine assembly or transmission as doing so may deform the oil pan.
      GTY826252Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Place Wooden Block or Plate Attachments
    2. Operate the engine lifter and install the engine and transmission assembly to the vehicle.
      NOTE:

      Make sure that the engine is clear of all wiring and hoses.

    3. Install the engine and transmission assembly to the vehicle with the 2 bolts and 2 nuts.
      GTY829569Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Nut

      Torque: 175.5 N.m (1790 kgf/cm, 129 ft.lbf) 

    4. Install the rear engine mounting member with the 6 bolts.

      Torque: 34.7 N.m (354 kgf/cm, 26 ft.lbf) 

      GTY785707Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Remove the 4 bolts and 2 engine hangers.
  22. INSTALL NO. 2 GROUND WIRE 
    1. Connect the No. 2 ground wire with the bolt.

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

      GTY835222Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  23. CONNECT NO. 2 PARKING LOCK RELEASE CABLE ASSEMBLY 
    1. Connect the parking lock release lever assembly cable end to the No. 2 parking lock release cable assembly cable end.
      GTY788488Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Parking Lock Release Lever Assembly Cable End
      *2 No. 2 Parking Lock Release Cable Assembly Cable End
    2. Attach the 2 claws and connect the cover to the No. 2 parking lock release cable assembly as shown in the illustration.
      GTY798759Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Cover
      Connect
  24. CONNECT STEERING KNUCKLE LH 

    Refer to PROCEDURE - Step 5

  25. CONNECT STEERING KNUCKLE RH 

    HINT: 

    Install the RH side following the same procedure as for the LH side.

  26. CONNECT FRONT SHOCK ABSORBER ASSEMBLY LH 
    1. Connect the absorber and absorber bracket. Then install the bolt.

      Torque: 48 N.m (489 kgf/cm, 35 ft.lbf) 

      GTY811424Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  27. CONNECT FRONT SHOCK ABSORBER ASSEMBLY RH 

    HINT: 

    Install the RH side following the same procedure as for the LH side.

  28. CONNECT TIE ROD ASSEMBLY LH 

    Refer to PROCEDURE - Step 2

  29. CONNECT TIE ROD ASSEMBLY RH 

    HINT: 

    Remove the RH side following the same procedure as for the LH side.

  30. INSTALL FRONT DISC BRAKE DUST COVER LH 

    Refer to PROCEDURE - Step 8

  31. INSTALL FRONT DISC BRAKE DUST COVER RH 

    HINT: 

    Remove the RH side following the same procedure as for the LH side.

  32. INSTALL FRONT DISC LH 
    1. for 6-Pot Caliper:

      Refer to PROCEDURE - Step 4

    2. except 6-Pot Caliper:

      Refer to PROCEDURE - Step 1

  33. INSTALL FRONT DISC RH 

    HINT: 

    Remove the RH side following the same procedure as for the LH side.

  34. INSTALL FRONT DISC BRAKE CYLINDER ASSEMBLY LH 

    Refer to PROCEDURE - Step 13

  35. INSTALL FRONT DISC BRAKE CYLINDER ASSEMBLY RH 

    HINT: 

    Remove the RH side following the same procedure as for the LH side.

  36. INSTALL FRONT HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH 

    Refer to PROCEDURE - Step 2

  37. INSTALL FRONT HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH 

    HINT: 

    Remove the RH side following the same procedure as for the LH side.

  38. INSTALL FRONT AXLE SHAFT NUT LH 

    Refer to PROCEDURE - Step 7

  39. INSTALL FRONT AXLE SHAFT NUT RH 

    HINT: 

    Remove the RH side following the same procedure as for the LH side.

  40. CONNECT FRONT SPEED SENSOR LH 

    Refer to PROCEDURE - Step 14

  41. CONNECT FRONT SPEED SENSOR RH 

    HINT: 

    Remove the RH side following the same procedure as for the LH side.

  42. CONNECT NO. 2 STEERING INTERMEDIATE SHAFT ASSEMBLY 

    Refer to PROCEDURE - Step 4

  43. INSTALL PROPELLER WITH CENTER BEARING SHAFT ASSEMBLY 

    Refer to PROCEDURE - Step 1

  44. INSPECT AND ADJUST NO. 2 AND NO. 3 JOINT ANGLE 

    Refer to PROCEDURE - Step 3

  45. INSTALL NO. 2 FUEL TANK PROTECTOR 

    Refer to PROCEDURE - Step 4

  46. INSTALL NO. 1 CENTER FLOOR HEAT INSULATOR SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 5

  47. INSTALL FRONT EXHAUST PIPE ASSEMBLY 

    Refer to PROCEDURE - Step 3

  48. INSTALL FRONT CENTER FLOOR BRACE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 4

  49. INSTALL FLOOR BOARD SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 5

  50. INSTALL NO. 2 FLOOR BOARD SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 6

  51. INSTALL REAR FLOOR SIDE MEMBER COVER LH 

    Refer to PROCEDURE - Step 8

  52. INSTALL REAR FLOOR SIDE MEMBER COVER RH 

    Refer to PROCEDURE - Step 7

  53. INSTALL REAR FRAME RAIL SUB-ASSEMBLY 
    1. Install the rear frame rail sub-assembly LH and rear frame rail sub-assembly RH with the 6 bolts.

      Bolt A 

      Torque: 31 N.m (316 kgf/cm, 23 ft.lbf) 

      Bolt B 

      Torque: 14 N.m (143 kgf/cm, 10 ft.lbf) 

      GTY799678Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Bolt A
      *b Bolt B
  54. INSTALL NO. 2 FRONT BUMPER REINFORCEMENT SUB-ASSEMBLY 
    1. Install the No. 2 front bumper reinforcement sub-assembly with the 6 nuts.
      GTY835225Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Torque: 25 N.m (255 kgf/cm, 18 ft.lbf) 

  55. INSTALL RADIATOR SUPPORT OPENING COVER 
    1. Install the 4 screws, attach the 3 claws and install the radiator support opening cover to the front crossmember sub-assembly.

      Torque: 5.5 N.m (56 kgf/cm, 49 in.lbf) 

  56. INSTALL RADIATOR SUPPORT EXTENSION RH 
    1. Install the 3 screws, attach the 2 claws and install the radiator support extension RH to the radiator support opening cover.

      Torque: 5.5 N.m (56 kgf/cm, 49 in.lbf) 

    2. Return the front fender liner RH to its original position.
  57. INSTALL RADIATOR SUPPORT EXTENSION LH 
    1. Install the 3 screws, attach the 2 claws and install the radiator support extension LH to the radiator support opening cover.

      Torque: 5.5 N.m (56 kgf/cm, 49 in.lbf) 

    2. Return the front fender liner LH to its original position.
  58. INSTALL FRONT BUMPER COVER 
    1. except Sport Package:

      Refer to INSTALLATION [10/2023 - ]

  59. CONNECT NO. 2 FUEL TUBE SUB-ASSEMBLY 
    1. Connect the No. 2 fuel tube sub-assembly and clamp.

      Refer to PRECAUTION [10/2020 - ]

      GTY783406Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  60. CONNECT FUEL TUBE SUB-ASSEMBLY 
    1. Connect the fuel tube sub-assembly and clamp.

      Refer to PRECAUTION [10/2020 - ]

      GTY829140Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  61. CONNECT NO. 3 ENGINE WIRE 
    1. Connect the No. 3 engine wire with the bolt and 2 clamps.

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

      GTY783625Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  62. CONNECT NO. 3 ENGINE ROOM WIRE 
    1. Connect the No. 3 engine room wire with the 2 bolts.

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

      GTY965243Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A w/o Advanced Park
      *B w/ Advanced Park
    2. Attach the claw and connect the connector holder.
    3. Connect the connector of the air conditioning wire.
    4. w/ Advanced Park:

      Connect the No. 3 engine room wire with the 4 connectors.

    5. w/o Advanced Park:

      Connect the No. 3 engine room wire with the 2 connectors.

  63. CONNECT ENGINE WIRE 
    1. Connect the clamp and 2 claws.
      GTY783636Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect the 3 connectors of the engine wire to the relay block.
      GTY783635Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  64. INSTALL ECM 

    Refer to PROCEDURE - Step 3

  65. INSTALL NO. 2 RELAY BLOCK COVER 
    1. Attach the 4 claws to install the No. 2 relay block cover.
      GTY783634Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  66. CONNECT SUCTION HOSE SUB-ASSEMBLY A 

    Refer to PROCEDURE - Step 6

  67. CONNECT DISCHARGE HOSE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 5

  68. CONNECT TRANSMISSION OIL COOLER HOSE 

    Refer to PROCEDURE - Step 31

  69. CONNECT NO. 2 OIL COOLER OUTLET HOSE 

    Refer to PROCEDURE - Step 32

  70. CONNECT WATER HOSE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 2

  71. CONNECT INLET HEATER WATER HOSE 
    1. Connect the inlet heater water hose to the No. 3 water by-pass hose assembly, and slide the clamp to secure the hose.
      GTY793368Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  72. CONNECT OUTLET HEATER WATER HOSE 
    1. Connect the outlet heater water hose to the No. 2 water by-pas pipe assembly, and slide the clamp to secure the hose.
      GTY799447Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  73. CONNECT NO. 3 RADIATOR HOSE 

    Refer to PROCEDURE - Step 28

  74. CONNECT NO. 1 RADIATOR HOSE 

    Refer to PROCEDURE - Step 29

  75. CONNECT NO. 1 FUEL VAPOR FEED HOSE 
    1. Connect the No. 1 fuel vapor feed hose to the purge VSV.
      GTY783637Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  76. CONNECT GENERATOR CABLE 

    Refer to PROCEDURE - Step 13

  77. CONNECT MOTOR CABLE 

    Refer to PROCEDURE - Step 12

  78. INSTALL INVERTER TERMINAL COVER 

    Refer to PROCEDURE - Step 14

  79. INSTALL AIR CLEANER WITH AIR CLEANER HOSE 

    Refer to PROCEDURE - Step 4

  80. CONNECT NO. 2 PCV HOSE 

    Refer to PROCEDURE - Step 6

  81. INSTALL NO. 1 AIR CLEANER INLET 

    Refer to PROCEDURE - Step 5

  82. INSTALL RADIATOR SUPPORT TO CROSSMEMBER BRACE SUB-ASSEMBLY LH 

    Refer to PROCEDURE - Step 30

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

    Refer to PROCEDURE - Step 29

  84. ADD ENGINE OIL 

    Refer to PROCEDURE - Step 8

  85. ADD DIFFERENTIAL OIL 

    Refer to PROCEDURE - Step 3

  86. ADD HYBRID TRANSMISSION FLUID 

    Refer to PROCEDURE - Step 3

  87. INSTALL SERVICE PLUG GRIP 

    Refer to INSTALLATION [10/2020 - ]

  88. CONNECT CABLE TO NEGATIVE AUXILIARY BATTERY TERMINAL 

    Refer to INSTALLATION [10/2023 - ]

  89. INITIALIZATION AFTER RECONNECTING BATTERY TERMINAL 

    Refer to WORK PROCEDURE [10/2022 - ]

    HINT: 

    When disconnecting and reconnecting the battery, there is an automatic learning function that completes learning when the respective system is used.

    Refer to AUTOMATIC LEARNING CHART [10/2023 - ]

  90. INSTALL LUGGAGE COMPARTMENT MAT SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 13

  91. PARKING LOCK FORCED RELEASE 

    Refer to PROCEDURE - Step 2

  92. CHARGE AIR CONDITIONING SYSTEM WITH REFRIGERANT 

    Refer to PROCEDURE - Step 5

  93. ADD ENGINE COOLANT 

    Refer to PROCEDURE - Step 8

  94. ADD COOLANT (for Inverter) 

    Refer to PROCEDURE - Step 7

  95. WARM UP COMPRESSOR 

    Refer to PROCEDURE - Step 6

  96. INSPECT SHIFT LEVER POSITION 

    Refer to PROCEDURE - Step 5

  97. ADJUST TRANSMISSION FLUID 

    Refer to PROCEDURE - Step 4

  98. INSPECT FOR ENGINE COOLANT LEAK 

    Refer to PROCEDURE - Step 3

  99. INSPECT FOR COOLANT LEAK (for Inverter) 

    Refer to PROCEDURE - Step 1

  100. INSPECT FOR OIL LEAK 

    Refer to PROCEDURE - Step 10

  101. INSPECT FOR FUEL LEAK 

    Refer to PROCEDURE - Step 1

  102. INSPECT FOR EXHAUST GAS LEAK 

    Refer to PROCEDURE - Step 9

  103. INSPECT FOR REFRIGERANT LEAK 

    Refer to PROCEDURE - Step 7

  104. INSTALL FRONT WHEEL 

    Refer to INSTALLATION [10/2017 - ]

  105. STABILIZE SUSPENSION 

    Refer to PROCEDURE - Step 10

  106. PLACE FRONT WHEELS FACING STRAIGHT AHEAD 
  107. CHECK AND ADJUST FRONT WHEEL ALIGNMENT 

    Refer to ADJUSTMENT [10/2023 - ]

  108. INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY 

    Refer to PROCEDURE - Step 1

  109. INSPECT IGNITION TIMING 

    Refer to PROCEDURE - Step 8

  110. INSPECT ENGINE IDLE SPEED 

    Refer to PROCEDURE - Step 9

  111. INSPECT CO/HC 

    Refer to PROCEDURE - Step 11

  112. INSPECT ENGINE OIL LEVEL 

    Refer to PROCEDURE - Step 2

  113. INSTALL STRUT BAR BRACKET SUPPORT SUB-ASSEMBLY 
    1. Install the strut bar bracket support sub-assembly with 7 new bolts.

      Torque: 7.9 N.m (81 kgf/cm, 70 in.lbf) 

      GTY835224Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  114. INSTALL FRONT SUSPENSION MEMBER BRACE 
    1. Install the front suspension member brace with 4 bolts.
      GTY811432Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Torque: 7.0 N.m (71 kgf/cm, 62 in.lbf) 

  115. INSTALL NO. 2 ENGINE UNDER COVER ASSEMBLY 
    1. Install the No. 2 engine under cover assembly with 11 bolts.

      Torque: 7.0 N.m (71 kgf/cm, 62 in.lbf) 

      GTY811429Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  116. INSTALL TRANSMISSION UNDER COVER 
    1. Install the transmission under cover with 4 bolts and clip.
      GTY802215Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Clip

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

  117. INSTALL NO. 1 ENGINE UNDER COVER ASSEMBLY 
    1. Install the No. 1 engine under cover assembly with the 12 screws and 3 clips.
      GTY811439Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  118. INSTALL LOWER RADIATOR AIR DEFLECTOR 

    Refer to PROCEDURE - Step 31

  119. INSTALL UPPER RADIATOR SUPPORT SEAL 

    Refer to PROCEDURE - Step 32

  120. INSTALL RADIATOR COVER PLATE 

    Refer to PROCEDURE - Step 33

  121. INSTALL V-BANK COVER SUB-ASSEMBLY 
    1. Attach the 3 clips in the order shown in the illustration to install the V-bank cover sub-assembly.
      GTY799680Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Tip (Round Portion)
      NOTE:
      • Securely attach the clips.
      • If the clips are forcibly attached or struck with an object, they may be damaged.
      • Do not apply any oil to the tips (round portions).
  122. INSTALL INVERTER COVER ASSEMBLY RH 

    Refer to PROCEDURE - Step 17

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