Installation [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.
- INSTALL WATER INLET WITH THERMOSTAT SUB-ASSEMBLY
- CONNECT NO. 7 WATER BY-PASS HOSE
*a View A *b 15° *c 90° (Tabs of Clip Installation Area) *d Upper Side of Vehicle *e Front Side of Vehicle *f 1 mm (0.0394 in.) or more - Connect the No. 7 water by-pass hose to the water inlet with thermostat sub-assembly and slide the clip to secure it.NOTE:
Make sure that the tabs of the clip are within the area shown in the illustration.
- Connect the No. 7 water by-pass hose to the water inlet with thermostat sub-assembly and slide the clip to secure it.
- CONNECT NO. 2 RADIATOR HOSE
for HEV Model: Refer to PROCEDURE - Step 38 [10/2022 - 10/2024] , or refer to PROCEDURE - Step 34 [10/2024 - ]
for PHEV Model: Refer to PROCEDURE - Step 40 - INSTALL INTAKE MANIFOLD
Refer to INSTALLATION [08/2023 - ]
- ADD ENGINE COOLANT (for Engine)
Refer to PROCEDURE - Step 5
- INSPECT FOR COOLANT LEAK (for Engine)
Refer to PROCEDURE - Step 1
- INSTALL NO. 1 ENGINE UNDER COVER
for HEV Model: Refer to PROCEDURE - Step 67 [10/2022 - 10/2024] , or refer to PROCEDURE - Step 62 [10/2024 - ]
for PHEV Model: Refer to PROCEDURE - Step 68
- INSTALL FRONT WHEEL OPENING EXTENSION PAD RH
- INSTALL FRONT WHEEL OPENING EXTENSION PAD LH