Brake Caliper, Replacing: Removing

WARNING: This page is about a different car, the 2024 Audi SQ7, 2024 Audi Q7, 2023 Audi SQ7, and 2023 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

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-- Insert the Brake Pedal Actuator:VAG1869/2 -A- between the brake pedal and driver seat. Pretension the brake pedal at least 60 mm.

By doing this, the valves in the brake master cylinder are closed and the brake fluid reservoir does not run empty.

-- Remove the front wheel while observing the safety precautions for vehicles with ceramic brakes. Refer to WHEELS AND TIRES .

CAUTION:

Leaking brake fluid increases the risk of injury.

Risk of skin irritation and injury.

- Wear safety gloves.

-- Remove the protective cap -3- from the bleed screw -1-.

Fig 1: Identifying Protective Cap, Bleed Screw And Container Bleeder Hose

Courtesy of AUDI

-- Attach the bleeder bottle bleeder hose -2- to the bleed screw.

-- Open the bleed screw to reduce the pressure in the hydraulic system.

-- Close the bleed screw and remove the bleeder bottle.

Do not remove the Brake Pedal Actuator:VAG1869/2 .

-- To protect against escaping brake fluid, place a cloth under the separating point.

CAUTION:

Risk of accident due to the brakes malfunctioning.

- Brake fluid must never come into contact with fluids containing mineral oils (oil, gasoline, cleaning solutions).

- Do not use safety gloves that have been dirtied by oil or grease.

Vehicle with Brake Hose with Union Bolt:

Courtesy of AUDI

-- Remove the union bolt -arrow- and remove the brake hose from the brake caliper.

Vehicle with Brake Hose without Union Bolt:

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-- Remove the union bolt -2- for the brake line.

-- Free up the brake hose at the brackets -arrows-.

-- Detach the brake hose -1- from the brake caliper and remove it.

Continuation for All Vehicles:

-- Immediately close open connection points with a clean plug.

-- Remove the brake pads. Refer to BRAKE PADS, REMOVING AND INSTALLING .