Brake Caliper Piston, Removing And Installing: Removing

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Courtesy of AUDI OF AMERICA, LLC

The brake caliper is removed. Refer to BRAKE CALIPER, REPLACING .
The parking brake motor is removed. Refer to LEFT AND RIGHT PARKING BRAKE MOTOR -V282- / -V283-, REMOVING AND INSTALLING .

NOTE:

Install the entire repair kit when servicing.

To clean the brakes only use mineral spirits.

Thinly coat the brake cylinder, brake caliper piston and seal with Lithium Grease: G 052 150 A2 .

-- Using an 8 mm internal multi-point socket, turn the spindle counter-clockwise -arrow-. As a result, the thrust nut pushes the brake caliper piston out of the brake caliper.

Fig 1: Identifying Spindle Rotated Using A Torx Insert T45

Courtesy of AUDI OF AMERICA, LLC

-- Remove the brake caliper piston with the protective cap from the brake caliper.

-VAS40338-

-- 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

-- Clean the surfaces on the brake caliper piston and gasket only with mineral spirits and then dry.