Brake Master Cylinder, Removing And Installing: Removing

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

Applies to hybrid vehicles

WARNING:

Follow the High Voltage System General Warnings, refer to HIGH VOLTAGE SYSTEM GENERAL WARNINGS .

-- Remove the Electric A/C Compressor High Voltage Cable -P3- from the plenum chamber bulkhead, refer to ELECTRICAL A/C COMPRESSOR HIGH VOLTAGE CABLE, REMOVING AND INSTALLING .

Continuation for all vehicles

-- Remove the plenum chamber bulkhead, refer to OVERVIEW - BULKHEAD .

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

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

WARNING:

Brake fluid is poisonous. NEVER siphon brake fluid with your mouth!
Wash off any brake fluid that comes into contact with the skin with a lot of water.
If brake fluid comes in contact with the eyes, wash out the eye(s) and see a doctor.
Refer to BRAKE FLUID GENERAL INFORMATION

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

-- Disconnect the brake lines -2- at brake master cylinder and seal the brake lines with plugs from the repair kit.

Fig 1: Brake Booster Bolts, Brake Lines & Brake Master Cylinder Bolts

Courtesy of AUDI OF AMERICA, LLC

-- Remove the brake master cylinder nuts -3-.

-- Remove brake master cylinder from brake booster.

-- Remove the brake master cylinder from the vehicle.

CAUTION:

Do not let any brake fluid run into the brake booster.