Installation [08/2023 - ]: Procedure

1. Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *A

   for PHEV Model

   *B

   for HEV Model

   1. Using an 8 mm socket wrench, loosen the 4 bolts of the No. 1 EGR pipe sub-assembly.

      HINT: 

      • As the bolts of the No. 1 EGR pipe sub-assembly are only to be loosened, it is not necessary to replace the EGR inlet gasket and EGR valve adapter gasket.
      • If the No. 1 EGR pipe sub-assembly is removed, it is necessary to replace the EGR inlet gasket and EGR valve adapter gasket with new ones.

1. Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   1. Using an 8 mm socket wrench, loosen the 2 bolts of the EGR valve assembly.

1. Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   Claw

   -

   -

   1. Install a new No. 1 EGR cooler gasket to the EGR cooler assembly.
      NOTE:

      Make sure that the claws of the EGR cooler gasket are toward the EGR cooler assembly side.

1. Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   Claw

   -

   -

   1. Install a new EGR valve gasket to the EGR cooler assembly.
      NOTE:

      Make sure that the claws of the EGR valve gasket are toward the EGR cooler assembly side.

1. Fig 1: EGR Cooler Assembly Tightening Sequence

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   Bolt or Nut

   -

   -

   1. for Type A:
      1. Temporarily install the EGR cooler assembly to the cylinder head sub-assembly and EGR valve assembly with the 3 bolts and 2 nuts.
      2. Tighten the 3 bolts and 2 nuts in the order shown in the illustration.

      Torque: 24 N.m (245 kgf/cm, 18 ft.lbf) 

   2. for Type B:

      Temporarily install the EGR cooler assembly to the cylinder head sub-assembly and EGR valve assembly with the 2 bolts and 3 nuts.

      1. Temporarily install the EGR cooler assembly to the cylinder head sub-assembly and EGR valve assembly with the 2 bolts and 3 nuts.
      2. Tighten the 2 bolts and 3 nuts in the order shown in the illustration.

      Torque: 24 N.m (245 kgf/cm, 18 ft.lbf) 

1. Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   1. Using an 8 mm socket wrench, tighten the 2 bolts of the EGR valve assembly.

      Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

1. Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *A

   for PHEV Model

   *B

   for HEV Model

   1. Using an 8 mm socket wrench, tighten the 4 bolts of the No. 1 EGR pipe sub-assembly.

      Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

• for PHEV Model:

  Refer to INSTALLATION [08/2023 - ]

• for HEV Model:

  Refer to INSTALLATION [10/2022 - ]

Refer to PROCEDURE - Step 5

1. If gas is leaking, tighten the areas necessary to stop the leak. Replace damaged parts as necessary.

   HINT: 

   Perform "Inspection After Repairs" after repairing or replacing the exhaust system.

   Refer to INITIALIZATION [10/2022 - ]