Toyota Avalon (XX50): Rear Coil Spring

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Suspension / Rear Suspension / Rear Coil Spring

Components

COMPONENTS

ILLUSTRATION

*A	for Gasoline Model	*B	for RH Side
*C	for LH Side	-	-
*1	NO. 1 FLOOR UNDER COVER	*2	NO. 2 FLOOR UNDER COVER
	Nm (kgfcm, ft.*lbf): Specified torque	-	-

ILLUSTRATION

*1	REAR COIL SPRING	*2	REAR LOWER COIL SPRING INSULATOR
*3	REAR NO. 2 SUSPENSION ARM ASSEMBLY	*4	REAR STABILIZER LINK ASSEMBLY
*5	REAR UPPER COIL SPRING INSULATOR	*6	REAR STABILIZER BAR
*7	REAR SUSPENSION TOE ADJUST CAM SUB-ASSEMBLY	*8	NO. 2 CAMBER ADJUST CAM
	Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping": Nm (kgfcm, ft.*lbf)	-	-

Installation

INSTALLATION

CAUTION / NOTICE / HINT

HINT:

Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.

PROCEDURE

1. INSTALL REAR UPPER COIL SPRING INSULATOR

(a) Install the rear upper coil spring insulator to the vehicle.

2. INSTALL REAR LOWER COIL SPRING INSULATOR

(a) Install the rear lower coil spring insulator to the rear No. 2 suspension arm assembly.

3. INSTALL REAR COIL SPRING

(a) Set the rear coil spring to the rear No. 2 suspension arm assembly.

NOTICE:

Set the rear coil spring so that its lower end is within the range shown in the illustration.
The smaller diameter end must face upward.

*a	30° or less
*b	Lower End of Rear Coil Spring
	Inner Side of the Vehicle

(b) Using a jack and wooden block, slowly jack up the rear No. 2 suspension arm assembly and then install the rear No. 2 suspension arm assembly to the rear axle carrier sub-assembly with the bolt and nut.

CAUTION:

Do not jack up the rear No. 2 suspension arm assembly too high as the vehicle may fall.

NOTICE:

Because the nut has its own stopper, do not turn the nut. Tighten the bolt with the nut secured.
When jacking up the rear No. 2 suspension arm assembly, be sure to jack it up slowly.
Make sure to perform this operation with the vehicle kept as low as possible.
Insert the bolt with the threaded end facing the front of the vehicle.

4. STABILIZE SUSPENSION

Click here

5. INSTALL REAR NO. 2 SUSPENSION ARM ASSEMBLY

(a) Install the rear No. 2 suspension arm assembly (rear axle carrier sub-assembly side) with the bolt.

Torque:

73 N·m {744 kgf·cm, 54 ft·lbf}

NOTICE:

Because the nut has its own stopper, do not turn the nut. Tighten the bolt with the nut secured.

6. INSTALL REAR STABILIZER LINK ASSEMBLY

Click here

7. INSTALL NO. 1 FLOOR UNDER COVER (for Gasoline Model)

(a) for RH Side:

Click here

8. INSTALL NO. 2 FLOOR UNDER COVER (for Gasoline Model)

(a) for LH Side:

Click here

9. INSTALL REAR WHEEL

Click here

10. INSTALL REAR NO. 2 SUSPENSION ARM ASSEMBLY

(a) Install the rear No. 2 suspension arm assembly (rear suspension member sub-assembly side) with the nut.

Click here

11. INSPECT AND ADJUST REAR WHEEL ALIGNMENT

Click here

12. PERFORM INITIALIZATION

for Gasoline Model:

Intelligent Clearance Sonar System
Intuitive Parking Assist System

Parking Assist Monitor System

for Initialization

for Calibration

Panoramic View Monitor System

for Initialization

for Calibration

for HV Model:

Intelligent Clearance Sonar System
Intuitive Parking Assist System

Parking Assist Monitor System

for Initialization

for Calibration

Panoramic View Monitor System

for Initialization

for Calibration

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 rear coil spring removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced (for Gasoline Model:)

Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function when Necessary Procedure not Performed	Link
Rear wheel alignment adjustment	Perform system variant learning and acceleration sensor zero point calibration.	VSC disabled or malfunctioning DTCs are output Slip indicator light illuminated ABS warning light illuminated
Suspension, tires, etc. (The vehicle height changes because of suspension or tire replacement.)	Measure ultrasonic sensor detection angle Ultrasonic sensor detection angle registration	Intelligent Clearance Sonar System Intuitive Parking Assist System
	Rear television camera assembly optical axis adjustment (Back camera position setting)	Parking Assist Monitor System	for Initialization for Calibration
	Parking assist ECU initialization Adjust steering angle Television camera assembly optical axis adjustment (Back camera position setting)	Panoramic View Monitor System	for Initialization for Calibration

Necessary Procedures After Parts Removed/Installed/Replaced (for HV Model:)

Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function when Necessary Procedure not Performed	Link
Rear wheel alignment adjustment	Clear zero point calibration data. Perform yaw rate and acceleration sensor zero point calibration.	DTCs are stored ABS warning light illuminates Brake warning light / yellow (minor malfunction) illuminates Slip indicator light illuminates VSC disabled or malfunctions
Suspension, tires, etc. (The vehicle height changes because of suspension or tire replacement.)	Measure ultrasonic sensor detection angle Ultrasonic sensor detection angle registration	Intelligent Clearance Sonar System Intuitive Parking Assist System
	Rear television camera assembly optical axis adjustment (Back camera position setting)	Parking Assist Monitor System	for Initialization for Calibration
	Parking assist ECU initialization Adjust steering angle Television camera assembly optical axis adjustment (Back camera position setting)	Panoramic View Monitor System	for Initialization for Calibration

HINT:

Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.

PROCEDURE

1. REMOVE REAR WHEEL

Click here

2. REMOVE NO. 2 FLOOR UNDER COVER (for Gasoline Model)

(a) for LH Side:

Click here

3. REMOVE NO. 1 FLOOR UNDER COVER (for Gasoline Model)

(a) for RH Side:

Click here

4. REMOVE REAR STABILIZER LINK ASSEMBLY

Click here

5. REMOVE REAR COIL SPRING

(a) Place matchmarks on the No. 2 camber adjust cam, rear suspension toe adjust cam sub-assembly and rear suspension member sub-assembly.

Matchmark

(b) Loosen the nut (rear suspension member sub-assembly side) of the rear No. 2 suspension arm assembly.

NOTICE:

Hold the rear suspension toe adjust cam sub-assembly while rotating the nut.

NOTICE:

When jacking up the rear No. 2 suspension arm assembly, be sure to jack it up slowly.
Make sure to perform this operation with the vehicle kept as low as possible.

*a	Wooden Block
*b	Jack

(d) Remove the bolt and nut, and separate the rear No. 2 suspension arm assembly from the rear axle carrier sub-assembly.

NOTICE:

Because the nut has its own stopper, do not turn the nut. Loosen the bolt with the nut secured.

(e) Slowly lower the rear No. 2 suspension arm assembly, and then remove the rear coil spring.

6. REMOVE REAR UPPER COIL SPRING INSULATOR

(a) Remove the rear upper coil spring insulator from the vehicle.

7. REMOVE REAR LOWER COIL SPRING INSULATOR

(a) Remove the rear lower coil spring insulator from the rear No. 2 suspension arm assembly.

Front Suspension System

Rear Lower Arm

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