Reassembly [08/2013 - ]

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

TEMPORARILY TIGHTEN REAR DISC BRAKE BLEEDER PLUG
HINT:

Fully tighten the rear disc brake bleeder plug after bleeding the system.
INSTALL REAR DISC BRAKE BLEEDER PLUG CAP
INSTALL PISTON SEAL
1. Apply a light layer of lithium soap base glycol grease to the entire circumference of a new piston seal.
  
  Fig 1: Installing Piston Seal
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  TEXT IN ILLUSTRATION
  
  Lithium Soap Base Glycol Grease
2. Install the piston seal to the rear disc brake cylinder.
  NOTE:
  Securely install the piston seal to the groove of the rear disc brake cylinder.

INSTALL REAR DISC BRAKE PISTON

Apply a light layer of lithium soap base glycol grease to the entire circumference of a new cylinder boot.

Fig 2: Identifying Cylinder Boot And Rear Disc Brake Piston Grease Application Area

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TEXT IN ILLUSTRATION

*1	Cylinder Boot
*2	Rear Disc Brake Piston
	Lithium Soap Base Glycol Grease

Install the cylinder boot to the rear disc brake piston.
Apply a light layer of lithium soap base glycol grease to the contact surfaces of the rear disc brake piston, and install it to the rear disc brake cylinder.
NOTE:
Do not install the rear disc brake piston forcibly in the rear disc brake cylinder.

INSTALL CYLINDER BOOT

Install the cylinder boot to the rear disc brake cylinder.

Fig 3: Identifying Set Ring And Cylinder Boot

TEXT IN ILLUSTRATION

*1	Set Ring
*2	Cylinder Boot

NOTE:

Securely install the cylinder boot to the groove of the rear disc brake cylinder and rear disc brake piston.

Using a screwdriver with its tip wrapped with protective tape, install a new rear disc brake piston set ring.
NOTE:
- Securely install the rear disc brake piston set ring to the outer groove of the cylinder boot.
- Do not damage the cylinder boot.