Brake Caliper, 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:

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.

-- Clean the brake caliper.

-- Carefully slide the brake caliper -1- with the installed brake pads over the brake rotor while paying attention to the brake hose.

Courtesy of AUDI OF AMERICA, LLC

-- Tighten the bolts -arrows-.

-- Tighten the bolts -4-.

Make sure the brake hose is routed correctly.
Make sure the brake hose is not pinched, bent, twisted or rubbing against the vehicle.

-- Bring the brake pad wear sensor into its installation position on the bracket and turn it in the -direction of the arrow- until the tab -2- engages in the hole -3- on the bracket.

Courtesy of AUDI OF AMERICA, LLC

-- Secure the wire at the protective cap.

-- Connect the connector -1- and engage the wiring harness at the bracket.

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.