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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 Water Cooled Type) >> Installation [11/2023 - ] >> Procedure

Installation [11/2023 - ]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. INSTALL MOTOR COOLING COOLER 
    1. Temporarily install the motor cooling cooler to the No. 1 transmission control cable bracket with the 3 bolts.
      GTY921275Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Tighten the 3 bolts in the order shown in the illustration.

      Torque: 11.5 N.m (117 kgf/cm, 8 ft.lbf) 

  2. CONNECT NO. 1 MOTOR COOLING HOSE 
    1. Connect the No. 1 motor cooling hose to the motor cooling cooler, and slide the clip to secure it.
      GTY1179097Courtesy 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 Center of Paint Mark
      *e 45° (Claw of Clip Location)
      NOTE:
      • Be careful not to deform the motor cooling cooler.
      • Make sure to align the paint mark of the No. 1 motor cooling hose with the paint mark of the motor cooling cooler.
      • Make sure that the claws of the clip are within the location shown in the illustration.
  3. CONNECT OUTLET MOTOR HOSE 
    1. Connect the outlet motor hose to the motor cooling cooler and slide the clip to secure it.
      NOTE:
      • Make sure to slide the outlet motor hose until it contacts the hose stopper of the motor cooling cooler.
      • Make sure to align the paint mark of the outlet motor hose with the paint mark of the motor cooling cooler.
      • Make sure that the claws of the clip are within the location shown in the illustration.
      GTY1179260Courtesy 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 Center of Paint Mark
      *e 45° (Claw of Clip Location)
  4. CONNECT NO. 5 INVERTER COOLING HOSE 

    Refer to PROCEDURE - Step 30

  5. CONNECT NO. 1 INVERTER COOLING HOSE 
    1. Connect the No. 1 inverter cooling hose to the motor cooling cooler, and slide the clip to secure it.
      GTY913156Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a 2 to 7 mm (0.0787 to 0.276 in.)
      *b Paint Mark
      *c Center of Paint Mark
      *d 120° (Claw of Clip Location)
      NOTE:
      • Be careful not to deform the motor cooling cooler.
      • Make sure to align the paint mark of the No. 1 inverter cooling hose with the paint mark of the motor cooling cooler.
      • Make sure that the claws of the clip are within the location shown in the illustration.
  6. INSTALL AIR CLEANER ASSEMBLY WITH AIR CLEANER HOSE 

    Refer to PROCEDURE - Step 19

  7. INSTALL INLET AIR CLEANER ASSEMBLY 

    Refer to PROCEDURE - Step 20

  8. INSTALL COOL AIR INTAKE DUCT SEAL 

    Refer to PROCEDURE - Step 4

  9. INSTALL NO. 1 ENGINE COVER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 64

  10. INSPECT HYBRID TRANSAXLE FLUID 

    See step  5

  11. INSPECT FOR HYBRID TRANSAXLE FLUID LEAK 
  12. ADD COOLANT (for Inverter) 

    Refer to PROCEDURE - Step 2

  13. INSPECT FOR COOLANT LEAK (for Inverter) 

    Refer to PROCEDURE - Step 1

  14. INSTALL NO. 2 ENGINE UNDER COVER ASSEMBLY 

    Refer to PROCEDURE - Step 60

  15. INSTALL NO. 1 ENGINE UNDER COVER 

    Refer to PROCEDURE - Step 61

  16. INSTALL FRONT WHEEL OPENING EXTENSION PAD RH 

    Refer to PROCEDURE - Step 63

  17. INSTALL FRONT WHEEL OPENING EXTENSION PAD LH 

    Refer to PROCEDURE - Step 62

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