Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001MTM5
Model Year Start: 2020 Model: Corolla Hatchback Prod Date Range: [09/2019 -           ]
Title: M20A-FKS (EMISSION CONTROL): EGR COOLER: INSTALLATION; 2020 - 2025 MY Corolla Corolla Hatchback [09/2019 -        ]

INSTALLATION

CAUTION / NOTICE / HINT

NOTICE:

This procedure includes the installation of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts.

Click here 2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION

PROCEDURE

1. INSTALL EGR COOLER ASSEMBLY

(a) 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.

(b) Using an 8 mm socket wrench, loosen the 2 bolts EGR valve assembly.

(c) Install a new EGR cooler gasket to the EGR cooler assembly.

NOTICE:

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

*a

Claw

(d) Install a new EGR valve gasket to the EGR cooler assembly.

NOTICE:

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

(e) Type A:

(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:

21 N·m {214 kgf·cm, 15 ft·lbf}

*a

Bolt or Nut

(f) Type B:

(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:

21 N·m {214 kgf·cm, 15 ft·lbf}

(g) Install the wire harness clamp bracket to the EGR cooler assembly with the 2 bolts.

Torque:

10 N·m {102 kgf·cm, 7 ft·lbf}

(h) Connect the No. 3 water by-pass hose and No. 4 water by-pass hose to the EGR cooler assembly and slide the 2 clips to secure them.

(i) 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}

(j) 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}

2. CONNECT ENGINE WIRE

(a) Engage the wire harness clamp and connect the engine wire.

(b) Connect the 4 connectors.

(c) Install the bolt and 2 nuts.

Torque:

10 N·m {102 kgf·cm, 7 ft·lbf}

(d) Engage the 3 wire harness clamps and connect the engine wire.

(e) Connect the 5 connectors.

(f) Engage the wire harness clamp and connect the engine wire.

(g) Connect the 4 connectors.

(h) Install the 3 bolts.

Torque:

10 N·m {102 kgf·cm, 7 ft·lbf}

3. INSTALL BATTERY

Click here 2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; MAINTENANCE: M20A-FKS BATTERY: INSTALLATION 2023 - 2025 MY Corolla Corolla Hatchback [09/2022 -        ]; MAINTENANCE: M20A-FKS BATTERY: INSTALLATION

4. INSTALL AIR CLEANER CAP WITH AIR CLEANER HOSE

Click here 2020 - 2023 MY Corolla Corolla Hatchback [09/2019 - 11/2022]; M20A-FKS (ENGINE CONTROL): THROTTLE BODY: INSTALLATION+ 2023 - 2025 MY Corolla Corolla Hatchback [11/2022 -        ]; M20A-FKS (ENGINE CONTROL): THROTTLE BODY: INSTALLATION+

5. ADD ENGINE COOLANT (for Fully Sealed Type)

Click here 2020 - 2025 MY Corolla Corolla Hatchback [09/2019 -        ]; MAINTENANCE: M20A-FKS COOLANT: REPLACEMENT+

6. ADD ENGINE COOLANT (for Non-Fully Sealed Type)

Click here 2020 - 2025 MY Corolla Corolla Hatchback [09/2019 -        ]; MAINTENANCE: M20A-FKS COOLANT: REPLACEMENT+

7. INSPECT FOR COOLANT LEAK (for Fully Sealed Type)

Click here 2020 - 2025 MY Corolla Corolla Hatchback [09/2019 -        ]; M20A-FKS (COOLING): COOLING SYSTEM: ON-VEHICLE INSPECTION+

8. INSPECT FOR COOLANT LEAK (for Non-Fully Sealed Type)

Click here 2020 - 2025 MY Corolla Corolla Hatchback [09/2019 -        ]; M20A-FKS (COOLING): COOLING SYSTEM: ON-VEHICLE INSPECTION+

9. INSPECT FOR EXHAUST GAS LEAK

Click here 2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (INTAKE / EXHAUST): EXHAUST PIPE (for Double Wishbone Type Suspension): INSTALLATION+