Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Installation

INSTALLATION

CAUTION / NOTICE / HINT

PROCEDURE

1. INSTALL ENGINE MOUNTING INSULATOR LH

HINT:

Perform this procedure only when replacement of the engine mounting insulator LH is necessary.

(a) Install the engine mounting insulator LH to the vehicle body with the 5 bolts. Torque: 71 N·m {724 kgf·cm, 52 ft·lbf} NOTICE: Temporarily tighten the bolt (A), then tighten the bolt (B) before tightening the order 4 bolts.

2. INSTALL ENGINE MOUNTING SPACER

HINT:

Perform this procedure only when replacement of the engine mounting spacer is necessary.

(a) Install the engine mounting spacer to the vehicle body with the 2 bolts.

Torque:

71 N·m {724 kgf·cm, 52 ft·lbf}

3. INSTALL ENGINE MOUNTING INSULATOR SUB-ASSEMBLY RH

HINT:

Perform this procedure only when replacement of the engine mounting insulator sub-assembly RH is necessary.

(a) Install the engine mounting insulator sub-assembly RH to the engine mounting spacer and vehicle body with the nut and 2 bolts.

Torque:

71 N·m {724 kgf·cm, 52 ft·lbf}

(b) Install the brake actuator with bracket to the engine mounting insulator sub-assembly RH with the bolt.

Torque:

19 N·m {194 kgf·cm, 14 ft·lbf}

(c) Install the cooler bracket to the engine mounting insulator sub-assembly RH with the bolt.

Torque:

9.8 N·m {100 kgf·cm, 87 in·lbf}

(d) Engage the clamp to the engine mounting insulator sub-assembly RH.

4. INSTALL REAR ENGINE MOUNTING INSULATOR

HINT:

Perform this procedure only when replacement of the rear engine mounting insulator is necessary.

(a) Install the rear engine mounting insulator to the front frame assembly with the 4 nuts.

Torque:

71 N·m {724 kgf·cm, 52 ft·lbf}

(b) Install the 2 hole plugs to the front frame assembly.

5. INSTALL FRONT ENGINE MOUNTING INSULATOR

HINT:

Perform this procedure only when replacement of the front engine mounting insulator is necessary.

(a) Install the front engine mounting insulator to the front frame assembly with the 3 nuts.

Torque:

52 N·m {530 kgf·cm, 38 ft·lbf}

(b) Install the hole plug to the front frame assembly.

6. INSTALL ENGINE HANGERS

Click here

7. REMOVE ENGINE ASSEMBLY FROM ENGINE STAND

(a) Remove the engine assembly from the engine stand.

8. INSTALL DRIVE PLATE AND RING GEAR SUB-ASSEMBLY

Click here

9. INSTALL AUTOMATIC TRANSAXLE ASSEMBLY

for U881E: Click here

for U881F: Click here

10. INSTALL TRANSFER STIFFENER PLATE RH (for AWD)

Click here

11. INSTALL STARTER ASSEMBLY

Click here

12. INSTALL FRONT ENGINE MOUNTING BRACKET

for U881E: Click here

for U881F: Click here

13. INSTALL FRONT FRAME ASSEMBLY

(a) Temporarily install the front engine mounting insulator with front frame assembly to the front engine mounting bracket with the bolt.

(b) Install the rear engine mounting insulator to the rear engine mounting bracket with the bolt. Torque: 71 N·m {724 kgf·cm, 52 ft·lbf} NOTICE: If tightening the bolt before installation of the front frame assembly, ensure that the edge of the protrusion of the bracket is within the width of the rib.

*a Projection *b Rib

(c) Fully tighten the bolt of the front engine mounting insulator.

Torque:

87 N·m {887 kgf·cm, 64 ft·lbf}

14. INSTALL STEERING LINK ASSEMBLY

Click here

15. INSTALL FRONT NO. 1 STABILIZER BRACKET LH

Click here

16. INSTALL FRONT NO. 1 STABILIZER BRACKET RH

HINT:

Perform the same procedure as for the LH side.

17. INSTALL NO. 2 VACUUM SWITCHING VALVE ASSEMBLY

Click here

18. INSTALL ENGINE WIRE

(a) Connect all connectors and clamps, and install the engine wire to the engine assembly with transaxle.

19. INSTALL ENGINE ASSEMBLY WITH TRANSAXLE

HINT:

Perform "Inspection After Repair" after replacing the engine assembly.

Click here

(a) Using height adjustment attachments and plate lift attachments to keep the engine assembly with transaxle and front frame assembly level, set an engine lifter underneath the engine assembly with transaxle and front frame assembly.

(b) Remove the 4 bolts, No. 1 engine hanger and No. 2 engine hanger.

(c) Operate the engine lifter and install the engine assembly with transaxle to the vehicle.

CAUTION:

Do not raise the engine assembly with transaxle more than necessary. If the engine is raised excessively, the vehicle may also be lifted up.

(d) Install the frame side rail plate sub-assembly RH and frame side rail plate sub-assembly LH to the front frame assembly and vehicle body with the 6 bolts and 2 nuts.

	Bolt
	Nut

Torque:

Bolt (A) :

85 N·m {867 kgf·cm, 63 ft·lbf}

Bolt (B) and Nut (A) :

32 N·m {326 kgf·cm, 24 ft·lbf}

(e) Install the front suspension member bracket sub-assembly RH and front suspension member bracket sub-assembly LH to the front frame assembly and vehicle body with the 6 bolts and 2 nuts.

Torque:

Bolt (C) :

85 N·m {867 kgf·cm, 63 ft·lbf}

Bolt (D) and Nut (B) :

32 N·m {326 kgf·cm, 24 ft·lbf}

(f) Install the engine mounting insulator sub-assembly RH to the front No. 1 engine mounting bracket LH with the 2 bolts and 2 nuts. Torque: Bolt and Nut (A) : 71 N·m {724 kgf·cm, 52 ft·lbf} Nut (B) : 40 N·m {408 kgf·cm, 30 ft·lbf}

(g) Install the No. 2 engine mounting stay RH with the bolt and 2 nuts.

Torque:

20 N·m {204 kgf·cm, 15 ft·lbf}

(h) Install the engine mounting insulator LH to the engine mounting bracket LH with the bolt and nut.

Torque:

40 N·m {408 kgf·cm, 30 ft·lbf}

NOTICE:

Tighten the bolt while holding the nut in place.

20. INSTALL DRIVE PLATE AND TORQUE CONVERTER ASSEMBLY SETTING BOLT

for U881E: Click here

for U881F: Click here

21. INSTALL FLYWHEEL HOUSING UNDER COVER

for U881E: Click here

for U881F: Click here

22. INSTALL PROPELLER WITH CENTER BEARING SHAFT ASSEMBLY

Click here

23. INSTALL FRONT DRIVE SHAFT ASSEMBLY

Click here

24. CONNECT STEERING INTERMEDIATE SHAFT ASSEMBLY

Click here

25. INSTALL EXHAUST MANIFOLD

Click here

26. CONNECT SUCTION HOSE SUB-ASSEMBLY

Click here

27. CONNECT DISCHARGE HOSE SUB-ASSEMBLY

Click here

28. CONNECT NO. 1 TRANSMISSION OIL COOLER HOSE ASSEMBLY

Click here

29. CONNECT NO. 1 TRANSMISSION OIL COOLER HOSE ASSEMBLY

for U881E: Click here

for U881F: Click here

30. CONNECT UNION TO CHECK VALVE HOSE

Click here

31. CONNECT OUTLET HEATER WATER HOSE

(a) Connect the outlet heater water hose to the water inlet pipe and slide the clip to secure it.

32. CONNECT INLET HEATER WATER HOSE

(a) Connect the inlet heater water hose to the water outlet and slide the clip to secure it.

(b) Engage the clamp.

33. CONNECT NO. 2 RADIATOR HOSE

Click here

34. CONNECT NO. 1 RADIATOR HOSE

(a) Install the No. 1 radiator hose to the radiator pipe clamp.

(b) Connect the No. 1 radiator hose to the water outlet and slide the clip to secure it.

35. CONNECT NO. 1 FUEL HOSE

(a) Connect the fuel tube sub-assembly (for Port Injection).

(1) Connect the fuel tube sub-assembly to the fuel pipe.

Click here

(b) Connect the No. 2 fuel tube sub-assembly (for Direct Injection).

(1) Connect the No. 2 fuel tube sub-assembly to the fuel pipe.

Click here

(c) Install the No. 2 fuel pipe clamp to the fuel tube connector.

36. CONNECT FUEL VAPOR FEED HOSE ASSEMBLY

(a) Connect the fuel vapor feed hose assembly to the No. 1 vacuum switching valve and slide the clip to secure it.

37. CONNECT TRANSMISSION CONTROL CABLE ASSEMBLY

for U881E: Click here

for U881F: Click here

38. CONNECT ENGINE WIRE

(a) Connect the No. 2 earth wire to the bracket with the bolt.

Torque:

8.4 N·m {86 kgf·cm, 74 in·lbf}

(b) Engage the clamp and connect the engine wire to the vehicle body.

(c) Engage the 2 claws to connect the engine room main wire to the engine wire.

(d) Connect the engine room main wire with engine wire to the positive (+) battery terminal with the nut.

Torque:

7.6 N·m {77 kgf·cm, 67 in·lbf}

(e) Engage the clamp and connect the engine wire to the engine mounting insulator LH.

(f) Engage the claw and connect the engine wire to the engine room relay block assembly.

(g) Install the 2 nuts to the engine mounting insulator LH and vehicle body.

Torque:

8.4 N·m {86 kgf·cm, 74 in·lbf}

(h) Engage the clamp to the engine room relay block assembly.

(i) Connect the engine wire to the vehicle body with the bolt.

Torque:

8.4 N·m {86 kgf·cm, 74 in·lbf}

(j) Install the nut to the engine room relay block assembly.

Torque:

8.4 N·m {86 kgf·cm, 74 in·lbf}

(k) Connect the 3 connectors to the engine room relay block assembly.

(l) Install the No. 1 relay block cover to the engine room relay block assembly.

39. INSTALL ECM

Click here

40. INSTALL V-BANK COVER SUB-ASSEMBLY

(a) Engage the 4 clips in the order shown in the illustration to install the V-bank cover sub-assembly. NOTICE: Securely engage the clips. If the clips are forcibly engaged or struck with an object, they may be damaged.

41. INSTALL AIR CLEANER BRACKET

(a) Install the air cleaner bracket to the engine mounting insulator LH with the 2 bolts.

Torque:

8.0 N·m {82 kgf·cm, 71 in·lbf}

(b) Engage the clamp.

42. INSTALL AIR CLEANER CASE SUB-ASSEMBLY

(a) Install the air cleaner case sub-assembly to the engine mounting insulator LH and air cleaner bracket with the 2 bolts.

Torque:

5.0 N·m {51 kgf·cm, 44 in·lbf}

43. INSTALL AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

(a) Install the air cleaner filter element sub-assembly to the air cleaner case sub-assembly.

44. INSTALL AIR CLEANER CAP WITH AIR CLEANER HOSE

Click here

45. INSTALL INLET AIR CLEANER ASSEMBLY

Click here

46. INSTALL COOL AIR INTAKE DUCT SEAL

Click here

47. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

48. ADD ENGINE OIL

Click here

49. ADD ENGINE COOLANT

Click here

50. CHARGE AIR CONDITIONING SYSTEM WITH REFRIGERANT

Click here

51. WARM UP ENGINE

Click here

52. INSPECT SHIFT LEVER POSITION

for U881E: Click here

for U881F: Click here

53. ADJUST SHIFT LEVER POSITION (for 2WD)

Click here

54. ADJUST SHIFT LEVER POSITION (for AWD)

for TMC Made: Click here

for TMMC Made: Click here

55. INSPECT FOR ENGINE OIL LEAK

Click here

56. INSPECT FOR COOLANT LEAK

Click here

57. INSPECT FOR AUTOMATIC TRANSAXLE FLUID LEAK

58. INSPECT FOR REFRIGERANT LEAK

Click here

59. INSPECT FOR FUEL LEAK

Click here

60. INSPECT FOR EXHAUST GAS LEAK

Click here

61. CHECK ENGINE OIL LEVEL

Click here

62. INSPECT ENGINE COOLANT LEVEL IN RESERVOIR TANK

Click here

63. INSTALL FRONT FENDER APRON SEAL RH

(a) Install the front fender apron seal RH to the vehicle body with the 2 bolts and clip.

64. INSTALL FRONT FENDER APRON SEAL LH

(a) Install the front fender apron seal LH to the vehicle body with the 2 bolts and clip.

65. INSTALL FRONT FLOOR COVER LH

Click here

66. INSTALL NO. 2 ENGINE UNDER COVER

(a) Install the No. 2 engine under cover to the front frame assembly with the 2 bolts, 2 screws and clip.

67. INSTALL SUSPENSION TOWER DAMPER (w/ Suspension Tower Damper)

Click here

68. INSTALL FRONT LOWER BUMPER ABSORBER

(a) Engage the 2 claws and install the front lower bumper absorber to the vehicle body with the 4 screws and 2 clips.

69. INSTALL NO. 1 ENGINE UNDER COVER

(a) Install the No. 1 engine under cover to the vehicle body with the 3 bolts, 2 screws and clip.

70. INSTALL FRONT WHEEL OPENING EXTENSION PAD RH

(a) Install the front wheel opening extension pad RH to the No. 1 engine under cover with the 2 screws.

71. INSTALL NO. 3 ENGINE UNDER COVER

(a) Install the No. 3 engine under cover to the vehicle body with the 5 bolts, 2 screws and 2 clips.

72. INSTALL FRONT WHEEL OPENING EXTENSION PAD LH

(a) Install the front wheel opening extension pad LH to the No. 3 engine under cover with the 2 screws.

73. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD

Click here

74. INSPECT AND ADJUST FRONT WHEEL ALIGNMENT

Click here

75. PERFORM INITIALIZATION

Click here

76. INSPECT IGNITION TIMING

Click here

77. INSPECT ENGINE IDLE SPEED

Click here

78. INSPECT CO/HC

Click here

79. CHECK FOR SPEED SENSOR SIGNAL

Click here