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Home >> Lexus >> 2018 >> LS 500 Base, RWD >> Repair and Diagnosis >> Suspension >> Front Suspension >> Suspension System (Front) - Service Information (2 Of 2) >> FRONT LOWER SUSPENSION ARM (for 2WD) >> Installation [12/2017 - 10/2020] >> Procedure

Installation [12/2017 - 10/2020]: Procedure

  1. TEMPORARILY TIGHTEN LOWER NO. 2 SUSPENSION ARM ASSEMBLY LH 
    1. Temporarily tighten the lower No. 2 suspension arm assembly LH to the steering knuckle assembly LH with the nut.
      GTY814095Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Insert the bolt from the back of the vehicle. Then temporarily tighten the lower No. 2 suspension arm assembly LH with the nut.
      GTY805462Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Nut
  2. CONNECT STEERING KNUCKLE ASSEMBLY LH 

    Refer to PROCEDURE - Step 9

  3. CONNECT TIE ROD ASSEMBLY LH 

    Refer to PROCEDURE - Step 2

  4. TEMPORARILY TIGHTEN FRONT SHOCK ABSORBER ASSEMBLY LH (w/o Air Suspension) 
    1. Temporarily tighten the front shock absorber assembly LH to the lower No. 2 suspension arm assembly LH with the bolt and nut.
      NOTE:
      • Insert the bolt from the rear of the vehicle.
      • Because the nut has its own stopper, do not turn the nut. Tighten the bolt with the nut secured.
      GTY788476Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Nut
  5. TEMPORARILY TIGHTEN FRONT PNEUMATIC CYLINDER WITH SHOCK ABSORBER ASSEMBLY LH (w/ Air Suspension) 

    HINT: 

    Perform the same procedure as for the front shock absorber assembly LH.

  6. CONNECT FRONT STABILIZER LINK ASSEMBLY LH 

    Refer to PROCEDURE - Step 7

  7. CONNECT FRONT HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH (w/ AVS) 

    Refer to PROCEDURE - Step 6

  8. INSTALL FRONT DISC LH 
  9. CONNECT DISC BRAKE CYLINDER ASSEMBLY LH 

    Refer to PROCEDURE - Step 15

  10. TEMPORARILY TIGHTEN FRONT LOWER SUSPENSION ARM ASSEMBLY LH 
    1. Insert the bolt from the front of the vehicle. Temporarily install the front lower suspension arm assembly LH with the nut.
      GTY814702Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Nut
    2. Temporarily tighten the front lower suspension arm assembly LH to the steering knuckle assembly LH with the nut.
      GTY799111Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. STABILIZE SUSPENSION 

    Refer to PROCEDURE - Step 9

  12. FULLY TIGHTEN FRONT SHOCK ABSORBER ASSEMBLY LH (w/o Air Suspension) 
    1. Fully tighten the front shock absorber assembly LH bolt.

      Torque: 110 N.m (1122 kgf/cm, 81 ft.lbf) 

      NOTE:

      Because the nut has its own stopper, do not turn the nut. Tighten the bolt with the nut secured.

  13. FULLY TIGHTEN FRONT PNEUMATIC CYLINDER WITH SHOCK ABSORBER ASSEMBLY LH (w/ Air Suspension) 

    HINT: 

    Perform the same procedure as for the front shock absorber assembly LH.

  14. FULLY TIGHTEN LOWER NO. 2 SUSPENSION ARM ASSEMBLY LH 
    1. Tighten the installation bolt of the lower No. 2 suspension arm assembly LH.

      Torque: 130 N.m (1326 kgf/cm, 96 ft.lbf) 

    2. Tighten the installation nut of the steering knuckle assembly LH.

      Torque: 145 N.m (1479 kgf/cm, 107 ft.lbf) 

      NOTE:

      Further tighten the nut up to 60° if the holes for the clip are not aligned.

    3. Install a new clip.
  15. FULLY TIGHTEN FRONT LOWER SUSPENSION ARM ASSEMBLY LH 
    1. Tighten the installation bolt of the front lower suspension arm assembly LH.

      Torque: 130 N.m (1326 kgf/cm, 96 ft.lbf) 

    2. Tighten the installation nut of the steering knuckle assembly LH.

      Torque: 145 N.m (1479 kgf/cm, 107 ft.lbf) 

      NOTE:

      Further tighten the nut up to 60° if the holes for the clip are not aligned.

    3. Install a new clip.
  16. INSTALL REAR LOWER ARM MOUNTING REINFORCEMENT SUB-ASSEMBLY LH 
    1. Install the rear lower arm mounting reinforcement sub-assembly LH with the 4 bolts.

      Torque: 16 N.m (163 kgf/cm, 12 ft.lbf) 

      GTY799163Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  17. INSTALL ENGINE SIDE COVER LH 
    1. Install the engine side cover LH with the 4 clips and clamp.
      GTY799112Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  18. INSTALL NO. 2 ENGINE UNDER COVER ASSEMBLY 
    1. Install the No. 2 engine under cover assembly with the 10 new bolts, 4 screws and clip.

      Bolt 

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

      GTY781882Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Screw
  19. INSTALL TRANSMISSION UNDER COVER 

    Refer to PROCEDURE - Step 187 [12/2017 - 09/2018] , or refer to PROCEDURE - Step 187 [09/2018 - 10/2020]

  20. INSTALL FRONT WHEEL 

    Refer to INSTALLATION [12/2017 - 10/2023]

  21. CONNECT BRAKE BOOSTER PUMP CONNECTOR (w/o Vacuum Brake Booster) 

    Refer to PROCEDURE - Step 6

  22. INSPECT AND ADJUST FRONT WHEEL ALIGNMENT 

    Refer to ADJUSTMENT [12/2017 - 09/2018] , or refer to ADJUSTMENT [09/2018 - 10/2020]

  23. INSPECT AND ADJUST VEHICLE HEIGHT (w/ Air Suspension) 

    Refer to ADJUSTMENT [12/2017 - 10/2020]

  24. PERFORM INITIALIZATION 

    Refer to INITIALIZATION [12/2017 - 09/2018] , or refer to INITIALIZATION [09/2018 - 10/2020]

  25. ADJUST HEADLIGHT AIMING 

    Refer to ADJUSTMENT [12/2017 - 10/2020]

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