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Home >> Audi >> 2019 >> A3 Premium >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Components (Brake System) [Convertible] >> 47 Hydraulic Components >> Front Brake Caliper >> Brake Caliper Piston, Removing And Installing >> Brake Caliper Piston, Removing And Installing, Eight-Piston Brake >> Installing

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

-- Clean the surfaces on the pistons and seal only with mineral spirits and then dry.

NOTE:

When a brake caliper piston or a piston cylinder are damaged, the brake caliper must be replaced.

-- Thinly coat the brake caliper pistons and seals with lithium grease before installing. Refer to the Parts Information.

-- Insert the seal into the brake caliper.

Fig 1: Inserting Oil Seal In Brake Caliper Housing
GWWN47-0218Courtesy of AUDI OF AMERICA, LLC

-- Place the protective cap on the brake caliper piston.

Fig 2: Identifying Protective Cap On Piston
GWWN47-0219Courtesy of AUDI OF AMERICA, LLC

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

Fig 3: Pushing Piston Into Brake Caliper Housing
GWWN47-0220Courtesy of AUDI OF AMERICA, LLC

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

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