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Home >> Audi >> 2022 >> S7 Premium Plus >> Repair and Diagnosis >> External Pages >> Different car >> Section 73 (Hydraulic Components) >> 47 Hydraulic Components >> Brake Booster/Brake Master Cylinder >> Brake Fluid Reservoir, Removing And Installing >> Removing

Brake Fluid Reservoir, Removing And Installing: Removing

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-- Remove the plenum chamber cover. Refer to BULKHEAD .

WARNING:

Health Risk.

  • Brake fluid is poisonous. NEVER siphon brake fluid by mouth!
  • To prevent skin contact with brake fluid, wear chemical resistant safety gloves.
  • Follow all disposal regulations.

Malfunctions from contact with brake fluid with fluids containing mineral oils.

  • Brake fluid must never come into contact with fluids containing mineral oils (oil, gas, cleaning solutions). Safety gloves must be free of oil and grease.

Risk of damaging the painted surfaces.

  • Due to its caustic nature, brake fluid must also never be brought into contact with paint. Wash off any spilled brake fluid immediately with plenty of water.

-- Open the brake fluid reservoir.

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

-- Siphon as much brake fluid as possible using the : VAS5234  with the : VAS5234/1  from the brake fluid reservoir.

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

NOTE:

Depending on the model, a steel cap is mounted on the brake fluid reservoir.

Remove the steel cap before removing the brake fluid reservoir.

-- 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. (Shown on a vehicle without a high-voltage system).

GWWA47-10257Courtesy of AUDI OF AMERICA, LLC

-- Seal the open brake lines and connections immediately with plugs from the Assembly Part Set: 5Q0 698 311  .