Brake Caliper 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.

Install the entire repair kit.
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.

-- Before inserting the seal, thinly coat it with Lithium Grease.

-- 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 OF AMERICA, LLC

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

-- Before inserting the piston and the seal, apply a thin coat of Lithium Grease.

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

Courtesy of AUDI OF AMERICA, LLC

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

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

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