Toyota Avalon (XX50): Oil Cooler

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Drivetrain / P710 Hybrid Transmission / Transaxle / Oil Cooler

Components

COMPONENTS

ILLUSTRATION

*A	Type A	*B	Type B
*1	FRONT WHEEL OPENING EXTENSION PAD RH	*2	FRONT WHEEL OPENING EXTENSION PAD LH
*3	NO. 1 ENGINE UNDER COVER	*4	NO. 2 ENGINE UNDER COVER ASSEMBLY
*5	FRONT FENDER APRON SEAL LH	-	-
	Nm (kgfcm, ft.*lbf): Specified torque	-	-

ILLUSTRATION

*1	NO. 1 INVERTER COOLING HOSE	*2	NO. 5 INVERTER COOLING HOSE
*3	MOTOR COOLING COOLER	*4	OIL COOLER UNION BOLT
*5	GASKET	*6	NO. 1 OIL COOLER TUBE CLAMP
*7	NO. 1 MOTOR COOLING HOSE	*8	NO. 2 MOTOR COOLING PIPE
*9	NO. 2 MOTOR COOLING HOSE	-	-
	Nm (kgfcm, ft.*lbf): Specified torque	●	Non-reusable part

Installation

INSTALLATION

PROCEDURE

1. INSTALL NO. 1 MOTOR COOLING HOSE

HINT:

Perform this procedure only when replacement of the motor cooling cooler is necessary.

(a) Coat the pipe of the motor cooling cooler with a small amount of ATF as shown in the illustration.

ATF Application Area

(b) Install the No. 1 motor cooling hose to the motor cooling cooler, and slide the clip to secure it.

*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	120°
	Claw of Clip Location

NOTICE:

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 positioned within the area shown in the illustration.

2. INSTALL NO. 2 MOTOR COOLING HOSE

HINT:

Perform this procedure only when replacement of the motor cooling cooler is necessary.

(a) Coat the pipe of the motor cooling cooler with a small amount of ATF as shown in the illustration.

ATF Application Area

(b) Install the No. 2 motor cooling hose to the motor cooling cooler, and slide the clip to secure it.

*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	120°
	Claw of Clip Location

NOTICE:

Be careful not to deform the motor cooling cooler.
Make sure to align the paint mark of the No. 2 motor cooling hose with the paint mark of the motor cooling cooler.
Make sure that the claws of the clip are positioned within the area shown in the illustration.

3. INSTALL NO. 2 MOTOR COOLING PIPE

(a) Install the No. 2 motor cooling pipe to the No. 2 motor cooling hose, and slide the clip to secure it.

*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	15°
	Center of Clip Location

NOTICE:

Make sure to align the paint mark of the No. 2 motor cooling pipe with the paint mark of the No. 2 motor cooling hose.
Make sure that the center of the clip (between the claws of the clip) is within 15° of the center of the paint mark as shown in the illustration.

4. INSTALL MOTOR COOLING COOLER

(a) Connect the No. 1 motor cooling hose to the transaxle housing tube connector, and slide the clip to secure it.

*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	Rib
*e	Center of Rib
*f	180°
	Claw of Clip Location

NOTICE:

Make sure to align the paint mark of the No. 1 motor cooling hose with the rib of the hybrid vehicle transaxle assembly.
Make sure that the claws of the clip are within the location shown in the illustration.

(b) Temporarily install the motor cooling cooler to the No. 1 transmission control cable bracket with the 3 bolts.

Torque:

11.5 N·m {117 kgf·cm, 8 ft·lbf}

(d) Temporarily install the No. 2 motor cooling pipe to the hybrid vehicle transaxle assembly with the oil cooler union bolt and a new gasket.

*1	Oil Cooler Union Bolt
*2	Gasket

(e) Install the No. 2 motor cooling pipe to the hose bracket with the bolt and No. 1 oil cooler tube clamp.

Torque:

11.5 N·m {117 kgf·cm, 8 ft·lbf}

(f) Tighten the oil cooler union bolt.

Torque:

35 N·m {357 kgf·cm, 26 ft·lbf}

5. CONNECT NO. 5 INVERTER COOLING HOSE

Click here

6. INSTALL NO. 1 INVERTER COOLING HOSE

(a) Install the No. 1 inverter cooling hose to the motor cooling cooler, and slide the clip to secure it.

*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

NOTICE:

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 positioned within the area shown in the illustration.

7. INSTALL INVERTER WITH CONVERTER ASSEMBLY

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8. INSPECT HYBRID TRANSAXLE FLUID

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9. INSPECT FOR HYBRID TRANSAXLE FLUID LEAK

10. INSTALL FRONT FENDER APRON SEAL LH

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11. INSTALL NO. 2 ENGINE UNDER COVER ASSEMBLY

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12. INSTALL NO. 1 ENGINE UNDER COVER

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13. INSTALL FRONT WHEEL OPENING EXTENSION PAD LH

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14. INSTALL FRONT WHEEL OPENING EXTENSION PAD RH

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Removal

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during motor cooling cooler removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function when Necessary Procedure not Performed
*: When performing learning using the Techstream. Click here
Auxiliary battery terminal is disconnected/reconnected	Perform steering sensor zero point calibration	Lane departure alert system (w/ Steering Control)
		Pre-collision system
		Intelligent clearance sonar system*
		Lighting system (w/ AFS)(EXT)
	Memorize steering angle neutral point	Parking assist monitor system
	Memorize steering angle neutral point	Panoramic view monitor system
Replacement of ECM	Perform Vehicle Identification Number (VIN) registration	MIL illuminates
Replacement of inverter with converter assembly	Resolver learning	DTCs are stored Slight vibration at a vehicle speed of 5 km/h (3 mph) or less Shock or vibration during acceleration

CAUTION:

Orange wire harnesses and connectors indicate high-voltage circuits. To prevent electric shock, always follow the procedure described in the repair manual.
Click here
To prevent electric shock, wear insulated gloves when working on wire harnesses and components of the high voltage system.

NOTICE:

After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
Click here
If the ECM has been struck or dropped, replace it.
Perform Vehicle Identification Number (VIN) registration when replacing the ECM.
Click here

PROCEDURE

1. REMOVE FRONT WHEEL OPENING EXTENSION PAD RH

Click here

2. REMOVE FRONT WHEEL OPENING EXTENSION PAD LH

Click here

3. REMOVE NO. 1 ENGINE UNDER COVER

Click here

4. REMOVE NO. 2 ENGINE UNDER COVER ASSEMBLY

Click here

5. REMOVE FRONT FENDER APRON SEAL LH

Click here

6. REMOVE INVERTER WITH CONVERTER ASSEMBLY

Click here

7. REMOVE NO. 1 INVERTER COOLING HOSE

(a) Slide the clip and remove the No. 1 inverter cooling hose from the motor cooling cooler.

8. DISCONNECT NO. 5 INVERTER COOLING HOSE

Click here

9. REMOVE MOTOR COOLING COOLER

(a) Remove the oil cooler union bolt and gasket to disconnect the No. 2 motor cooling pipe from the hybrid vehicle transaxle assembly.

*1	Oil Cooler Union Bolt
*2	No. 1 Oil Cooler Tube Clamp

(b) Remove the bolt and No. 1 oil cooler tube clamp to disconnect the No. 2 motor cooling pipe from the hose bracket.

(d) Slide the clip and disconnect the No. 1 motor cooling hose from the transaxle housing tube connector.

NOTICE:

Make sure not to remove the No. 1 motor cooling hose from the motor cooling cooler as the motor cooling cooler may be deformed.

10. REMOVE NO. 2 MOTOR COOLING PIPE

(a) Slide the clip and remove the No. 2 motor cooling pipe from the No. 2 motor cooling hose.

NOTICE:

Make sure not to remove the No. 2 motor cooling hose from the motor cooling cooler as the motor cooling cooler may be deformed.

Motor Cable

Shift Lever Knob

See More:

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > P710 Hybrid Transmission / Transaxle: Shift Lever
Components COMPONENTS ILLUSTRATION *1 SHIFT LOCK RELEASE BUTTON COVER *2 SHIFT LEVER KNOB SUB-ASSEMBLY *3 TRANSMISSION CONTROL CABLE ASSEMBLY *4 TRANSMISSION FLOOR SHIFT ASSEMBLY *5 NO. 1 CONSOLE BOX DUCT *6 REAR UPPER CONSOLE PANEL SUB-ASSEMBLY N*m (kgf*cm, ft.*lbf): Specified torque - - ILLUSTRATI ...