Removal [10/2022 - 08/2023]: Procedure
WARNING: This page is about a different car, the 2025 Lexus RX 450h+, 2025 Lexus RX 350h, 2024 Lexus RX 450h+, 2024 Lexus RX 350h, and 2023 Lexus RX 350h. However, it is still accessible from the selected car via links, so may be relevant.
- REMOVE NO. 2 ENGINE UNDER COVER ASSEMBLY
Refer to PROCEDURE - Step 1
- REMOVE FRONT FLOOR COVER LH
Refer to PROCEDURE - Step 4 - DRAIN ENGINE COOLANT (for Engine)
Refer to PROCEDURE - Step 4
- REMOVE FRONT EXHAUST PIPE ASSEMBLY (TWC: Rear Catalyst) WARNING:
- To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.
- REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY
Refer to REMOVAL [10/2022 - ]
- REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY
Refer to PROCEDURE - Step 3
- REMOVE AIR FUEL RATIO SENSOR (for Sensor 1)
Refer to REMOVAL [10/2022 - 08/2023]
- REMOVE WIRING HARNESS CLAMP BRACKET WARNING:
- To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.
- SEPARATE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR WARNING:
- To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.
- SEPARATE NO. 1 FRONT FLOOR HEAT INSULATOR WARNING:
- To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.
- REMOVE MANIFOLD STAY WARNING:
- To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.
- REMOVE EXHAUST MANIFOLD (TWC: Front Catalyst) WARNING:
- To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.
*1 No. 1 Exhaust Manifold Heat Insulator *2 Exhaust Manifold (TWC: Front Catalyst) *3 No. 1 Front Floor Heat Insulator - - - Remove the 7 nuts and separate the exhaust manifold (TWC: Front Catalyst) from the cylinder head sub-assembly.
- Remove the No. 1 front floor heat insulator, No. 1 exhaust manifold heat insulator and exhaust manifold (TWC: Front Catalyst).
- REMOVE EXHAUST MANIFOLD TO HEAD GASKET
- REMOVE NO. 2 EXHAUST MANIFOLD HEAT INSULATOR