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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Components (Brake System) (1 Of 2) >> 47 Hydraulic Components >> Brake Booster/Brake Master Cylinder >> Brake Fluid Reservoir, Removing And Installing >> Removing

Brake Fluid Reservoir, Removing And Installing: Removing

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

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

Fig 1: Identifying Brake Charger/Bleeder Unit VAS5234
GWWA47-10166Courtesy of AUDI OF AMERICA, LLC
CAUTION:

Leaking brake fluid increases the risk of injury.

Risk of skin irritation and injury.

- Wear safety gloves.

-- Open the brake fluid reservoir.

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).

- Wear safety gloves that are free of oil and grease.

-- Extract as much brake fluid as possible from the brake fluid reservoir using the Brake Charger/Bleeder Unit :VAS5234  with the Adapter :VAS5234/1  .

CAUTION:

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

- Rinse off any leaking brake fluid immediately using plenty of water.

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

-- Remove the bolt -arrow- and remove the protective plate -1-.

GWWA47-10297Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connector -2- for the Brake Fluid Level Warning Switch -F34-.

GWWA47-10257Courtesy of AUDI OF AMERICA, LLC

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

-- Remove the locking pin -arrow- on the side of the brake fluid reservoir and from the brake master cylinder.

-- Remove the brake fluid reservoir -1- from the plugs.

-- Immediately seal any open lines and connections with plugs from the Engine Bung Set :VAS6122  .