Brake Caliper Piston, Removing And Installing, Six-Piston Brake: Installing

• 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.

-- Apply a thin coat of Lithium Grease to the seal.

-- Insert the seal into the brake caliper.

-- Install protective cap on the piston.

Fig 1: Identifying Protective Cap On Piston

Courtesy of AUDI OF AMERICA, LLC

-- Thinly coat the brake caliper pistons and the protective cap with Lithium Grease before installing.

-- Without tilting it, push the brake caliper pistons using constant pressure.

Fig 2: Pushing Piston Into Brake Caliper Housing

Courtesy of AUDI OF AMERICA, LLC

-- Press the protective cap into the groove on the brake caliper.

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

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