Brake Caliper Piston, Removing And Installing: Installing

• 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

-- 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

-- 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.