Brake Pads, Removing And Installing, Four-Piston Brake: Installing

WARNING: This page is about a different car, the 2024 Audi A4 allroad. However, it is still accessible from the selected car via links, so may be relevant.

Install in the reverse order of removal while noting the following:

Use the complete repair kit when installing new brake pads.
Components to be used when installing new brake pads. Refer to Parts Information.

-- If the brake pads are being replaced, check the brake rotors for wear and damage. Refer to BRAKE ROTOR, CHECKING, STEEL BRAKES .

CAUTION:

Health risk due to toxic dust from the brake system.

Irreversible deposit of dust particles in the lungs. Breathing impairments may occur.

- Never blow out the brake system with compressed air.

Use only mineral spirits to clean the brake caliper.
Check the protective caps of the brake caliper pistons for damage and install the complete repair kit, if necessary. Refer to BRAKE CALIPER PISTON, REMOVING AND INSTALLING, FOUR-PISTON BRAKE .

Fig 1: Suction Hose From The Brake Charger/Bleeder Unit

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

There is a risk of contamination and paint damage from leaking brake fluid.

- Check the brake fluid level before pushing the brake caliper piston back into the brake cylinders.

-- If the brake fluid is up to the "MAX" marking on used brake pads, it must be extracted.

-- Evacuate the brake fluid -2- in the brake fluid reservoir with the screen installed -1-, using the Brake Filling and Bleeding Equipment:VAS 6860 or Brake Charger/Bleeder Unit:VAS 5234 (example illustration).

-- Use the Piston Resetting Tool:T10145 to press the brake caliper piston completely back into the brake caliper.

-- Clean the brake caliper -1- at the contact surfaces -arrows- for the anti-friction plates.

Courtesy of AUDI OF AMERICA, LLC

-- Install the anti-friction plates. Refer to Figure.

-- If equipped, remove the protective film from the backing plate of the brake pad.

-- If reusing the old brake pads, install the labeled brake pads in the same location.

-- Bring the brake pads into their installation position. Refer to Figure.

-- Install the spring bracket. Refer to Figure.

-- Install the brake caliper with the brake pads installed. Refer to BRAKE CALIPER, REMOVING AND INSTALLING, FOUR-PISTON BRAKE .

-- Check brake fluid level, and fill if necessary.

CAUTION:

Faulty brakes increase the risk of an accident.

- Make sure the brakes are working correctly before driving the vehicle for the first time.

-- With the vehicle stationary, firmly press the brake pedal several times so that the brake pads in the operating condition properly sit in their respective position.