Last Modified: 12-11-2024 6.11:8.1.0 Doc ID: RM100000002OT7H
Model Year Start: 2025 Model: GR Corolla Prod Date Range: [09/2024 -           ]
Title: UC80F (AUTOMATIC TRANSMISSION / TRANSAXLE): OIL COOLER: INSTALLATION; 2025 MY Corolla Corolla Hatchback GR Corolla [09/2024 -        ]

INSTALLATION

PROCEDURE

1. INSTALL TRANSMISSION OIL COOLER

(a) Install the transmission oil cooler to the oil cooler bracket with the 2 bolts in the order shown in the illustration.

Torque:

13.5 N·m {138 kgf·cm, 10 ft·lbf}

*a

Temporarily Tighten

2. CONNECT NO. 4 WATER BY-PASS HOSE

(a) Connect the No. 4 water by-pass hose to the transmission oil cooler and slide the clip to secure it.

NOTICE:

  • Make sure to slide the No. 4 water by-pass hose until it contacts the hose stopper of the transmission oil cooler.
  • Make sure to align the paint mark of the No. 4 water by-pass hose with the paint mark of the transmission oil cooler.
  • Make sure that the clip is within the location shown in the illustration.

*a

2 to 5 mm (0.0787 to 0.197 in.)

*b

Paint Mark

*c

90° (Claw of Clip Location)

*d

Rear of Vehicle

*e

Left of Vehicle

3. CONNECT OUTLET NO. 1 OIL COOLER HOSE

(a) Connect the outlet No. 1 oil cooler hose to the transmission oil cooler and slide the clip to secure it.

NOTICE:

  • Make sure to slide the outlet No. 1 oil cooler hose until it contacts the hose stopper of the transmission oil cooler.
  • Make sure to align the paint mark of the outlet No. 1 oil cooler hose with the paint mark of the transmission oil cooler.
  • Make sure that the clip is within the location shown in the illustration.

*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

90° (Claw of Clip Location)

*e

Left of Vehicle

*f

Rear of Vehicle

4. CONNECT NO. 1 TRANSMISSION OIL COOLER HOSE

(a) Connect the No. 1 transmission oil cooler hose to the transmission oil cooler and slide the clip to secure it.

NOTICE:

  • Make sure to slide the No. 1 transmission oil cooler hose until it contacts the hose stopper of the transmission oil cooler.
  • Make sure to align the paint mark of the No. 1 transmission oil cooler hose with the paint mark of the transmission oil cooler.
  • Make sure that the clip is within the location shown in the illustration.

*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

90° (Claw of Clip Location)

*e

Left of Vehicle

*f

Rear of Vehicle

5. CONNECT NO. 5 WATER BY-PASS HOSE

(a) Connect the No. 5 water by-pass hose to the transmission oil cooler and slide the clip to secure it.

NOTICE:

  • Make sure to slide the No. 5 water by-pass hose until it contacts the hose stopper of the transmission oil cooler.
  • Make sure to align the paint mark of the No. 5 water by-pass hose with the paint mark of the transmission oil cooler.
  • Make sure that the clip is within the location shown in the illustration.

*a

2 to 5 mm (0.0787 to 0.197 in.)

*b

Paint Mark

*c

90° (Claw of Clip Location)

*d

Left of Vehicle

*e

Front of Vehicle

6. ADD ENGINE COOLANT

Click here 2025 MY GR Corolla [09/2024 -        ]; MAINTENANCE: G16E-GTS COOLANT: REPLACEMENT+

7. ADJUST AUTOMATIC TRANSAXLE FLUID

Click here 2025 MY Corolla Corolla Hatchback GR Corolla [09/2024 -        ]; UC80F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE FLUID: ADJUSTMENT

8. INSPECT FOR ENGINE COOLANT LEAK

Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (COOLING): COOLING SYSTEM: ON-VEHICLE INSPECTION+

9. INSPECT FOR AUTOMATIC TRANSAXLE FLUID LEAK

10. INSTALL REAR ENGINE UNDER COVER LH

Click here 2025 MY GR Corolla [09/2024 -        ]; G16E-GTS (ENGINE MECHANICAL): ENGINE ASSEMBLY: INSTALLATION+

11. INSTALL NO. 3 ENGINE UNDER COVER AIR GUIDE

Click here 2025 MY GR Corolla [09/2024 -        ]; G16E-GTS (ENGINE MECHANICAL): ENGINE ASSEMBLY: INSTALLATION+

12. INSTALL FRONT FENDER LINER RETAINER

Click here 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2024 -        ]; EXTERIOR PANELS / TRIM: FRONT BUMPER (for Hatchback, GR): REASSEMBLY+

13. INSTALL FRONT FENDER SPLASH SHIELD SUB-ASSEMBLY LH

Click here 2025 MY GR Corolla [09/2024 -        ]; G16E-GTS (ENGINE MECHANICAL): ENGINE ASSEMBLY: INSTALLATION+

14. INSTALL PIN HOLD CLIP

Click here 2025 MY GR Corolla [09/2024 -        ]; G16E-GTS (ENGINE MECHANICAL): ENGINE ASSEMBLY: INSTALLATION+

15. INSTALL NO. 1 ENGINE UNDER COVER ASSEMBLY

Click here 2025 MY GR Corolla [09/2024 -        ]; G16E-GTS (ENGINE MECHANICAL): ENGINE ASSEMBLY: INSTALLATION+