Brake Booster, Removing And Installing, Electromechanical Brake Booster: Removing

WARNING: This page is about a different car, the 2024 Audi S6 and 2024 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

-- If replacing the electromechanical brake booster, select the "Replace control module" program. Refer to DIAGNOSTIC ENTRIES .

-- Follow the instructions in the Vehicle Diagnostic Tester display.

-- Switch off the ignition.

-- Disconnect the brake pedal from the brake booster. Refer to BRAKE PEDAL, DISCONNECTING FROM BRAKE BOOSTER .

-- Remove the plenum chamber bulkhead. Refer to PLENUM CHAMBER BULKHEAD, REMOVING AND INSTALLING .

-- Remove the brake fluid reservoir. Refer to BRAKE FLUID RESERVOIR, REMOVING AND INSTALLING .

-- Disconnect the connectors -1-.

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

Leaking brake fluid increases the risk of injury.

Risk of skin irritation and injury.

- Wear safety gloves.

-- Remove the bolts -2 and 3-.

-- To protect against escaping brake fluid, place enough lint-free cloths in the area below the brake booster.

-- Remove the union bolts -arrows- for the brake lines, then remove the brake lines from the brake master cylinder and move them slightly to the side.

CAUTION:

Risk of destroying the brake lines by bending.

- Never change the shape of the brake lines.

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

-- Remove the windshield wiper motor. Refer to WINDSHIELD WIPER MOTOR V, REMOVING AND INSTALLING .

-- Remove the brake booster with the brake master cylinder.