Brake Caliper Piston, Removing And Installing: Removing

WARNING: This page is about a different car, the 2021 Audi S4 and 2021 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of AUDI OF AMERICA, LLC

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 -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 Trim Removal Wedge :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.