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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 80 (Hybrid Transaxle System (P810) - Service Information) >> OIL COOLER (for Air Cooled Type) >> Installation [12/2019 - 11/2023] >> Procedure

Installation [12/2019 - 11/2023]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. INSTALL TRANSMISSION OIL COOLER BRACKET 

    HINT: 

    Perform this procedure only when replacement of the transmission oil cooler bracket, No. 2 transmission oil cooler bracket or No. 3 transmission oil cooler bracket is necessary.

    1. Install the No. 3 transmission oil cooler bracket to the No. 2 transmission oil cooler bracket with the nut.

      Torque: 9.0 N.m (92 kgf/cm, 80 in.lbf) 

    2. Engage the guide and install the transmission oil cooler bracket to the vehicle body with the 2 nuts and bolt.

      Torque: 6.0 N.m (61 kgf/cm, 53 in.lbf) 

      GTY903520Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Nut
      Bolt

      HINT: 

      Tightening order: Temporarily tighten bolt → Fully tighten nut (A) → Fully tighten nut (B) → Fully tighten bolt

  2. INSTALL OIL COOLER ASSEMBLY 
    1. Install the oil cooler assembly to the transmission oil cooler bracket with the 2 nuts and bolt.

      Torque: 6.0 N.m (61 kgf/cm, 53 in.lbf) 

  3. CONNECT NO. 1 TRANSMISSION OIL COOLER HOSE ASSEMBLY 
    1. Connect the No. 1 transmission oil cooler hose assembly to the oil cooler assembly and slide the 2 clips to secure it.
      GTY886455Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a 0 to 3 mm (0 to 0.118 in.)
      *b 2 to 7 mm (0.0787 to 0.276 in.)
      *c Paint Mark
      *d Inlet Oil Hose
      *e Outlet Oil Hose
      *f Front of Vehicle
      NOTE:
      • Make sure to slide the No. 1 transmission oil cooler hose assembly until it contacts the hose stopper of the oil cooler assembly.
      • Make sure to align the paint mark of the No. 1 transmission oil cooler hose assembly (inlet oil hose) with the paint mark of the oil cooler assembly (inlet oil pipe).
  4. INSTALL TRANSMISSION OIL COOLER AIR DUCT 
    1. Engage the guide to temporarily install the transmission oil cooler air duct to the oil cooler assembly.
      GTY873178Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Install the transmission oil cooler air duct to the oil cooler assembly with the 3 bolts.

      Torque: 6.0 N.m (61 kgf/cm, 53 in.lbf) 

      HINT: 

      Tightening order: Bolt (A) → Bolt (B) → Bolt (C)

  5. INSPECT HYBRID TRANSAXLE FLUID 

    Refer to ON-VEHICLE INSPECTION [12/2019 - 11/2023] 

  6. INSPECT FOR HYBRID TRANSAXLE FLUID LEAK 
  7. INSTALL NO. 2 ENGINE UNDER COVER ASSEMBLY 

    Refer to PROCEDURE - Step 62 [12/2019 - 10/2022] , or refer to PROCEDURE - Step 62 [10/2022 - 11/2023]

  8. INSTALL NO. 1 ENGINE UNDER COVER 

    Refer to PROCEDURE - Step 63 [12/2019 - 10/2022] , or refer to PROCEDURE - Step 63 [10/2022 - 11/2023]

  9. INSTALL FRONT WHEEL OPENING EXTENSION PAD RH 

    Refer to PROCEDURE - Step 65 [12/2019 - 10/2022] , or refer to PROCEDURE - Step 65 [10/2022 - 11/2023]

  10. INSTALL FRONT WHEEL OPENING EXTENSION PAD LH 

    Refer to PROCEDURE - Step 64 [12/2019 - 10/2022] , or refer to PROCEDURE - Step 64 [10/2022 - 11/2023]

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