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

INSTALLATION

PROCEDURE

1. INSTALL DRAIN COOLER HOSE

(a) Align the hose notch with the rib as shown in the illustration and install the drain cooler hose to the rear cooling unit assembly.

*a Hose Notch *b Rib

2. INSTALL AIR CONDITIONING TUBE AND ACCESSORY ASSEMBLY

(a) Remove the vinyl tape from the air conditioning tube and accessory assembly and rear cooling unit expansion valve.

(b) Sufficiently apply compressor oil to 2 new O-rings and the fitting surface of the air conditioning tube and accessory assembly.

Compressor Oil:

ND-OIL 12 or equivalent

(c) Install the 2 O-rings to the air conditioning tube and accessory assembly.

NOTICE:

Keep the O-rings and O-ring fitting surfaces free of foreign matter.

(d) Connect the air conditioning tube and accessory assembly.

(e) Rotate the hook connector as shown in the illustration.

	Bolt
	Screw

(f) Install the bolt.

Torque:

9.8 N·m {100 kgf·cm, 87 in·lbf}

(g) Install the air conditioning tube and accessory assembly with the 3 screws.

3. INSTALL NO. 1 COOLING UNIT PACKING

(a) Install a new No. 1 cooling unit packing.

4. INSTALL WATER PIPE AND HOSE SUB-ASSEMBLY A

(a) Connect the water pipe and hose sub-assembly A and engage the 2 clips within the area shown in the illustration. NOTICE: Do not apply excessive force to the water pipe and hose sub-assembly A.

*a View A *b View B *c Marking (Yellow) *d Marking (White) *e Clip Installation Angle (60°)

(b) Install the water pipe and hose sub-assembly A with the bolt and screw.

Torque:

Bolt :

9.8 N·m {100 kgf·cm, 87 in·lbf}

5. INSTALL REAR AIR DUCT

(a) Install the rear air duct with the 3 screws.

6. INSTALL REAR AIR CONDITIONING UNIT ASSEMBLY

(a) Engage the guide as shown in the illustration.

(b) Install the rear air conditioning unit assembly with the 4 bolts.

Torque:

9.8 N·m {100 kgf·cm, 87 in·lbf}

HINT:

Tighten the bolts in the order shown in the illustration.

(c) Connect the drain cooler hose.

(d) Engage each clamp.

(e) Connect each connector.

7. INSTALL REAR NO. 5 AIR DUCT

(a) Connect the rear No. 5 air duct as shown in the illustration.

	Install in this Direction (1)
	Install in this Direction (2)

(b) Install the rear No. 5 air duct with the clip.

8. INSTALL REAR NO. 6 AIR DUCT

(a) Connect the rear No. 6 air duct as shown in the illustration.

Install in this Direction

(b) Install the rear No. 6 air duct with the clip.

9. INSTALL REAR NO. 7 AIR DUCT

(a) Connect the rear No. 7 air duct as shown in the illustration.

Install in this Direction

(b) Install the rear No. 7 air duct with the clip.

10. INSTALL REAR NO. 1 SIDE AIR DUCT

(a) Connect the rear No. 1 side air duct as shown in the illustration.

Install in this Direction

(b) Install the rear No. 1 side air duct with the clip.

11. INSTALL REAR NO. 2 SIDE AIR DUCT

(a) Connect the rear No. 2 side air duct as shown in the illustration.

Install in this Direction

(b) Install the rear No. 2 side air duct with the clip.

(c) Engage the clamp.

12. INSTALL REAR NO. 3 SIDE AIR DUCT

(a) Connect the rear No. 3 side air duct as shown in the illustration.

Install in this Direction

(b) Install the rear No. 3 side air duct with the clip.

13. INSTALL COOLER PLATE

(a) Engage the 2 claws to install the cooler plate.

14. INSTALL REAR NO. 4 SIDE AIR DUCT

(a) Connect the rear No. 4 side air duct as shown in the illustration.

	Install in this Direction (1)
	Install in this Direction (2)

(b) Install the rear No. 4 side air duct with the clip.

15. INSTALL ROOF SIDE INNER GARNISH ASSEMBLY RH

HINT:

Use the same procedure as for the LH side.

Click here

16. CONNECT REAR NO. 2 SEAT OUTER BELT ASSEMBLY RH

HINT:

Use the same procedure as for the LH side.

Click here

17. INSTALL DECK TRIM SIDE PANEL ASSEMBLY RH

Click here

18. INSTALL NO. 1 LUGGAGE COMPARTMENT LIGHT ASSEMBLY

Click here

19. INSTALL ROPE HOOK ASSEMBLY

HINT:

Use the same procedure as for the LH side.

Click here

20. INSTALL NO. 1 LUGGAGE COMPARTMENT TRIM HOOK

Click here

21. INSTALL REAR SEAT SIDE GARNISH RH

HINT:

Use the same procedure as for the LH side.

Click here

22. INSTALL FRONT DECK SIDE TRIM COVER RH

HINT:

Use the same procedure as for the LH side.

Click here

23. INSTALL REAR SEAT OUTER TRACK BRACKET COVER RH

for 60/40 Split Seat Type:

Click here

for Captain Seat Type:

HINT:

Use the same procedure as for the LH side.

Click here

24. INSTALL REAR DOOR INSIDE SCUFF PLATE RH

HINT:

Use the same procedure as for the LH side.

Click here

25. INSTALL REAR DOOR SCUFF PLATE RH

HINT:

Use the same procedure as for the LH side.

Click here

26. INSTALL REAR FLOOR FINISH PLATE

Click here

27. INSTALL REAR NO. 2 SEAT ASSEMBLY

Click here

28. CONNECT AIR CONDITIONING HOSE AND ACCESSORY

(a) Connect the outlet heater water hose with the marking within the area shown in the illustration. NOTICE: Do not apply excessive force to the outlet heater water hose.

*a View A *b Marking (Yellow) *c Outlet Heater Water Hose Installation Angle (30°) *d Clip Installation Angle (60°)

(b) Engage the clip within the area shown in the illustration.

(c) Connect the inlet heater water hose with the marking within the area shown in the illustration. NOTICE: Do not apply excessive force to the inlet heater water hose.

*a View A *b Marking (White) *c Inlet Heater Water Hose Installation Angle (30°) *d Clip Installation Angle (90°)

(d) Engage the clip within the area shown in the illustration.

(e) Remove the vinyl tape from the liquid tube.

(f) Sufficiently apply compressor oil to a new O-ring and the fitting surface of the liquid tube.

Compressor Oil:

ND-OIL 12 or equivalent

(g) Install the O-ring to the liquid tube.

NOTICE:

Keep the O-ring and O-ring fitting surface free of foreign matter.

(h) Connect the liquid tube.

(i) Remove the vinyl tape from the suction tube.

(j) Sufficiently apply compressor oil to a new O-ring and the fitting surface of the suction tube.

Compressor Oil:

ND-OIL 12 or equivalent

(k) Install the O-ring to the suction tube.

NOTICE:

Keep the O-ring and O-ring fitting surface free of foreign matter.

(l) Connect the suction tube.

(m) Rotate the hook connector as shown in the illustration.

(n) Insert the tube joint into the fitting hole securely and install the bolt.

Torque:

9.8 N·m {100 kgf·cm, 87 in·lbf}

29. INSTALL NO. 1 LUGGAGE COMPARTMENT SIDE COVER PROTECTOR

(a) Install the No. 1 luggage compartment side cover protector with the 3 clips and bolt.

(b) Move the rear wheel house liner RH to its original position as shown in the illustration.

(c) Install the 2 screws and a new grommet.

30. ADD ENGINE COOLANT

Click here

31. INSPECT FOR COOLANT LEAK

Click here

32. CHARGE AIR CONDITIONING SYSTEM WITH REFRIGERANT

Click here

33. WARM UP ENGINE

Click here

34. INSPECT FOR REFRIGERANT LEAK

Click here

35. INITIALIZATION SERVO MOTOR

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