Brake System Pressure Reservoir -VX70-, REMOVING AND INSTALLING: Removing

WARNING: This page is about a different car, the 2023 Audi SQ8, 2023 Audi RS Q8, and 2023 Audi Q8. However, it is still accessible from the selected car via links, so may be relevant.

-- Remove the plenum chamber cover. Refer to PLENUM CHAMBER COVER, REMOVING AND INSTALLING .

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

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TIP:

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

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- on the left front caliper.

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

Courtesy of AUDI

-- Connect the bleeder bottle hose -2- as shown.

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

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

-- Repeat the procedure on the left rear brake caliper.

Do not remove the :VAG1869/2 .

-- To prevent brake fluid from escaping, place enough lint-free cloths in the area under the pressure reservoir.

Courtesy of AUDI

-- Remove the union bolt -3- and remove the brake line -1- from the pressure reservoir.

-- Immediately seal the open connection points with clean plugs from the Assembly Part Set:5Q0 698 311 .

-- Disconnect the connector -2-.

-- Pull the Brake System Pressure Reservoir -VX70- -1- upward from the retaining pins and remove it.

-- Should the Brake System Pressure Reservoir -VX70- be replaced, remove the bolts -arrows- and the bracket -1-.

Courtesy of AUDI