Brake Caliper Piston, Removing And Installing, FS III: Installing

Install in reverse order of removal. Note the following:

Cleaning:

Only Use Mineral Spirits for Cleaning the Brake System.

-- Thinly coat the piston and the seal with Assembly Paste before installing.

-- Insert the seal in brake caliper.

-- Place the cap with the outer sealing lip on the piston.

Fig 1: Identifying Protective Seal With Outer Sealing Lip On Piston

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Insert the inner sealing lip in the cylinder groove using the : 3409  .

Hold the piston in front of the brake caliper for this procedure.

Fig 2: Inserting Inner Sealing Lip In Grove In Cylinder Using Wedge 3409

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Press the piston into the brake caliper using piston resetting tool.

Fig 3: Identifying Piston Pressed Into Brake Caliper Using Piston Resetting Tool

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

1. : T10145 

The outer sealing lip of the cap thereby slips into the groove on the piston.

-- Install the brake caliper. Refer to BRAKE CALIPER, REMOVING AND INSTALLING, BRAKE CALIPER FS III .