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

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during front exhaust pipe assembly, front No. 3 exhaust pipe sub-assembly, center exhaust pipe assembly (TWC: Rear Catalyst), tail exhaust pipe assembly and No. 2 tail exhaust pipe assembly removal/installation are shown below.

CAUTION:

To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

PROCEDURE

1. REMOVE NO. 2 TAIL EXHAUST PIPE ASSEMBLY (w/o Rear No. 2 Seat)

CAUTION:

To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

(a) Remove the 2 bolts to disconnect the No. 2 tail exhaust pipe assembly from the tail exhaust pipe assembly.

(b) Remove the No. 2 tail exhaust pipe assembly from the 2 exhaust pipe supports.

(c) Remove the exhaust pipe gasket from the tail exhaust pipe assembly.

2. REMOVE TAIL EXHAUST PIPE ASSEMBLY (w/o Rear No. 2 Seat)

CAUTION:

To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

(a) Remove the 2 bolts to disconnect the tail exhaust pipe assembly from the center exhaust pipe assembly (TWC: Rear Catalyst).

(b) Remove the tail exhaust pipe assembly from the 2 exhaust pipe supports.

(c) Remove the exhaust pipe gasket from the center exhaust pipe assembly (TWC: Rear Catalyst).

3. REMOVE TAIL EXHAUST PIPE ASSEMBLY (w/ Rear No. 2 Seat)

CAUTION:

To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

(a) Remove the 2 bolts to disconnect the tail exhaust pipe assembly from the center exhaust pipe assembly (TWC: Rear Catalyst).

(b) Remove the tail exhaust pipe assembly from the 4 exhaust pipe supports.

(c) Remove the exhaust pipe gasket from the center exhaust pipe assembly (TWC: Rear Catalyst).

4. REMOVE CENTER EXHAUST PIPE ASSEMBLY (TWC: Rear Catalyst)

CAUTION:

To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

(a) Remove the 2 bolts and 2 compression springs to disconnect the center exhaust pipe assembly (TWC: Rear Catalyst) from the front No. 3 exhaust pipe sub-assembly.

(b) Remove the center exhaust pipe assembly (TWC: Rear Catalyst) from the 2 exhaust pipe supports.

(c) Remove the exhaust pipe gasket from the front No. 3 exhaust pipe sub-assembly.

5. REMOVE FRONT FLOOR COVER LH

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6. REMOVE FRONT NO. 3 EXHAUST PIPE SUB-ASSEMBLY

CAUTION:

To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

(a) Disengage the 4 wire harness clamps.

(b) Disconnect the heated oxygen sensor (for Bank 1) connector.

(c) Remove the 2 bolts and 2 nuts to remove the front No. 3 exhaust pipe sub-assembly from the front exhaust pipe assembly and exhaust manifold (TWC: Front Catalyst).

	Bolt
	Nut

(d) Remove the 2 exhaust pipe gaskets from the front No. 3 exhaust pipe sub-assembly.

7. REMOVE HEATED OXYGEN SENSOR (for Bank 1)

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8. REMOVE NO. 1 EXHAUST PIPE SUPPORT BRACKET (for Lower Side)

CAUTION:

To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

(a) Remove the 2 bolts and No. 1 exhaust pipe support bracket.

9. REMOVE FRONT EXHAUST PIPE ASSEMBLY

CAUTION:

To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

(a) Disengage the 2 wire harness clamps.

(b) Disconnect the heated oxygen sensor (for Bank 2) connector.

(c) Remove the 2 nuts and front exhaust pipe assembly from the exhaust manifold assembly LH (TWC: Front Catalyst).

(d) Remove the exhaust pipe gasket from the front exhaust pipe assembly.

10. REMOVE HEATED OXYGEN SENSOR (for Bank 2)

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