Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Replacement

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual / Drivetrain / Axle And Differential / Rear Differential Carrier Oil Seal / Replacement

REPLACEMENT

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during diaphragm oil seal replacement are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link

Rear wheel alignment adjustment

Calibration
  • VSC disabled or malfunctioning
  • DTCs are output
  • Slip indicator light illuminated
  • ABS warning light illuminated

Suspension, tires, etc.

(The vehicle height changes because of suspension or tire replacement)
  • Ultrasonic sensor detection angle
  • Ultrasonic sensor detection angle registration
  • Intelligent clearance sonar system
  • Intuitive parking assist system (w/ Intelligent Clearance Sonar System)

Rear television camera assembly optical axis (Back camera position setting)

Parking assist monitor system

for Initialization:

for Calibration:

  • Parking assist ECU initialization
  • Adjust steering angle

Panoramic view monitor system

for Initialization:

for Calibration:

Initialize No. 1 headlight ECU sub-assembly LH

Lighting System (w/ Automatic Headlight Beam Level Control System)

Gas leaks from exhaust system

Inspection after repair
  • Poor idle, etc.
  • Engine start function, etc.

PROCEDURE

1. REMOVE NO. 2 REAR DIFFERENTIAL SUPPORT

Click here

2. SEPARATE ELECTRO MAGNETIC CONTROL COUPLING WIRE HARNESS

Click here

3. REMOVE ELECTRO MAGNETIC CONTROL COUPLING SUB-ASSEMBLY

Click here

4. REMOVE TRANSMISSION COUPLING CONICAL SPRING WASHER

Click here

5. REMOVE TRANSMISSION COUPLING SPACER

Click here

6. REMOVE DIAPHRAGM OIL SEAL

(a) Using SST, remove the diaphragm oil seal from the rear differential carrier assembly.

SST: 09308-00010

*1

Diaphragm Oil Seal

7. INSTALL DIAPHRAGM OIL SEAL

(a) Using SST and a press, install a new diaphragm oil seal into the rear differential carrier assembly.

SST: 09506-35010

SST: 09554-22010

NOTICE:

  • Install the diaphragm oil seal uniformly.
  • Press fit the diaphragm oil seal straight.
  • Do not damage the diaphragm oil seal.
  • Do not excessively press in the diaphragm oil seal.
  • Make sure to install the diaphragm oil seal as specified, otherwise a malfunction such as an oil leak may occur.

Standard Distance (A):

0.7 to 1.3 mm (0.0276 to 0.0511 in.)

*1

Diaphragm Oil Seal

(b) Apply a light coat of MP grease to the lip of the new diaphragm oil seal.

8. INSTALL TRANSMISSION COUPLING SPACER

Click here

9. INSTALL TRANSMISSION COUPLING CONICAL SPRING WASHER

Click here

10. INSTALL ELECTRO MAGNETIC CONTROL COUPLING SUB-ASSEMBLY

Click here

11. INSTALL ELECTRO MAGNETIC CONTROL COUPLING WIRE HARNESS

Click here

12. TEMPORARILY INSTALL NO. 2 REAR DIFFERENTIAL SUPPORT

Click here

    Components
    COMPONENTS ILLUSTRATION *1 DIAPHRAGM OIL SEAL *2 ELECTRO MAGNETIC CONTROL COUPLING SUB-ASSEMBLY *3 ELECTRO MAGNETIC CONTROL COUPLING WIRE HARNESS *4 TRANSMISSION COUPLING CONICAL S ...

    Rear Differential Side Gear Shaft Oil Seal
    ...

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