Installation [11/2021 - ]: Procedure

WARNING: This page is about a different car, the 2025 Lexus NX 250, 2024 Lexus NX 250, 2023 Lexus NX 250, and 2022 Lexus NX 250. However, it is still accessible from the selected car via links, so may be relevant.

SET EGR VALVE ASSEMBLY

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Set the EGR valve assembly to the camshaft housing.
HINT:

At this time, do not install the parts with bolts.

CONNECT NO. 4 WATER BY-PASS HOSE
CONNECT NO. 8 WATER BY-PASS HOSE
INSTALL NO. 1 EGR COOLER GASKET

See step 3
INSTALL EGR VALVE GASKET

See step 4
INSTALL EGR COOLER ASSEMBLY

See step 5
CONNECT NO. 4 WATER BY-PASS HOSE
CONNECT NO. 3 WATER BY-PASS HOSE

INSTALL EGR VALVE ASSEMBLY

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Using an 8 mm socket wrench, install the EGR valve assembly to the camshaft housing with the 2 bolts.
Torque: 10 N.m (102 kgf/cm, 7 ft.lbf)

INSTALL EGR INLET GASKET
INSTALL EGR VALVE ADAPTER GASKET

INSTALL NO. 1 EGR PIPE SUB-ASSEMBLY

Using an 8 mm socket wrench, install the No. 1 EGR pipe sub-assembly to the intake manifold and EGR valve assembly with the 4 bolts.
Torque: 10 N.m (102 kgf/cm, 7 ft.lbf)

CONNECT ENGINE WIRE
Torque: 10 N.m (102 kgf/cm, 7 ft.lbf)
INSTALL AIR CLEANER ASSEMBLY WITH AIR CLEANER HOSE

Refer to PROCEDURE - Step 5
CONNECT NO. 2 VENTILATION HOSE

Refer to PROCEDURE - Step 6
CONNECT VACUUM HOSE
INSTALL INLET AIR CLEANER ASSEMBLY

Refer to PROCEDURE - Step 8
INSTALL NO. 1 ENGINE COVER SUB-ASSEMBLY

Refer to PROCEDURE - Step 48
INSTALL RADIATOR UPPER AIR GUIDE PLATE
ADD ENGINE COOLANT (for Engine)
Refer to PROCEDURE - Step 5
INSPECT FOR COOLANT LEAK (for Engine)

Refer to ON-VEHICLE INSPECTION [11/2021 - ]
INSPECT FOR EXHAUST GAS LEAK
Refer to PROCEDURE - Step 4