Brake Caliper Piston, Removing And Installing, 1LA/1LB: Removing

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.

-- Use compressed air to push the piston out of the brake caliper housing.

Fig 1: Force Piston Out Of Brake Caliper Housing Using Compressed Air

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Place a wooden board into the recess so the piston is not damaged.

-- Carefully pry the protective cap -1- and the seal out of the brake caliper with the :VAS40338 -2- using gentle lever movements, and do not damage the groove for the protective cap in the brake caliper while doing so.

Fig 2: Prying The Protective Caps

Courtesy of AUDI OF AMERICA, LLC

-- Remove the gasket.

Fig 3: Removing/Installing Seal Using Trim Removal Wedge 3409

Courtesy of AUDI OF AMERICA, LLC

-- To do so, use the :3409 .

NOTE:

When removing, make sure that the cylinder surface is not damaged.