Brake Caliper Piston, Removing And Installing: Removing

• The brake caliper is removed. Refer to BRAKE CALIPER, REPLACING .
• The parking brake motor is removed. Refer to LEFT AND RIGHT PARKING BRAKE MOTOR -V282- / -V283-, REMOVING AND INSTALLING .

• Install the entire repair kit when servicing.
• Only use mineral spirits to clean the brakes.
• Thinly coat the brake cylinder, brake caliper piston and seal with Lithium Lubricating Grease:G 052 150 A2  .

-- Using an 8 mm internal multi-point socket, turn the spindle counter-clockwise in direction of -arrow-. As a result, the thrust nut pushes the brake caliper piston out of the brake caliper.

Fig 1: Identifying Spindle Rotated Using A Torx Insert T45

Courtesy of AUDI OF AMERICA, LLC

-- Remove the brake caliper piston with the protective cap from the brake caliper.

-- Remove the seal using the :3409  .

Fig 2: Identifying Wedge 3409 To Remove Seal

Courtesy of AUDI OF AMERICA, LLC

-- Clean the surfaces on the brake caliper piston and gasket only with mineral spirits and then dry.