Brake Piston, Removing And Installing: Installing

WARNING: This page is about a different car, the 2023 Audi SQ8, 2023 Audi RS Q8, and 2023 Audi Q8. However, it is still accessible from the selected car via links, so may be relevant.

-- Only clean the surfaces of the pistons and seal with mineral spirits and then dry.

-- Check the brake caliper piston and the piston wall. When a brake caliper piston or a piston cylinder are damaged, the brake caliper must be replaced.

-- Install the entire repair kit.

-- Thinly coat the seals with Lubricating Grease before installing.

-- Insert the seal into the brake caliper and check for correct seating.

-- Place the protective cap -4- on the brake caliper piston -3-.

Courtesy of AUDI

-- The protective cap -4- must sit correctly in the groove -arrow-.

-- Thinly coat the piston and seals with Lubricating Grease before installing.

-- Without tilting it, push the brake caliper piston -3- into the brake caliper -1- using constant pressure.

Courtesy of AUDI

-- Press the protective cap -4- into the groove on the brake caliper. If necessary, use the -T10145-.

-- The protective cap must fit tightly in the groove -arrow-. If necessary, push down on it slightly with the -T10145-.

-- Repeat the work procedure on the next brake caliper piston.