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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 System Pressure Reservoir -VX70-, REMOVING AND INSTALLING >> Removing

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

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

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

Fig 1: Brake Pedal Depressor VAG 1869/2 Inserted Between Brake Pedal And Driver's Seat
GWWA44-0020Courtesy of AUDI OF AMERICA, LLC
NOTE:

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

WARNING:

Risk of skin irritation.

  • To prevent skin contact with brake fluid, wear chemical resistant safety gloves.

-- Remove the protective cap -3- from the bleed screw -1- on the left front caliper.

Fig 2: Identifying Protective Cap, Bleed Screw And Container Bleeder Hose
GWWA46-10203Courtesy of AUDI OF AMERICA, LLC

-- 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.

NOTE:

Do not remove the : VAG1869/2  .

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

GWWA47-10124Courtesy of AUDI OF AMERICA, LLC

-- 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-.

GWWA47-10125Courtesy of AUDI OF AMERICA, LLC