Brake Caliper Piston, Removing And Installing, Four-Piston Brake: Installing
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.
- Install the entire repair kit.
- Only use mineral spirits to clean the brakes.
- When a brake caliper piston or a piston cylinder are damaged, the brake caliper must be replaced.
-- Clean the surface of the brake caliper piston only with mineral spirits and let it dry.
-- Insert the seal into the brake caliper.
-- Place the protective cap on the brake caliper piston.
-- Without tilting, push the brake caliper piston with inserted protective cap using constant pressure.
-- Insert the Piston Resetting Tool -T10145- and the Thrust Piece :T40325 into the brake caliper.
-- Slowly push the protective cap -1- in using the Piston Resetting Tool -T10145- and Thrust Piece :T40325 .
- The protective cap must fit tightly in the groove. If necessary, push down on it slightly with the Piston Resetting Tool -T10145-.
- The protective cap must no longer be able to be pulled out of the brake caliper by hand.
-- Repeat the work procedure on the next brake caliper piston.