Brake Master Cylinder, Removing And Installing: Installing

Install in reverse order of removal.

CAUTION:

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

Use new nuts.

-- Replace sealing ring between brake master cylinder and brake booster.

-- When replacing brake master cylinder, ensure pressure rod in brake booster is seated correctly.

-- Press brake pedal down slightly. This makes it easier to guide the push rod into the brake master cylinder.

-- Install and tighten new nuts -3-. Pay attention to the tightening specification.

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

Courtesy of AUDI OF AMERICA, LLC

-- Attach the brake lines -2- to the brake master cylinder. Note the tightening specification.

-- Install the brake fluid reservoir. Refer to BRAKE FLUID RESERVOIR, REMOVING AND INSTALLING .

-- With manual transmissions, insert the clutch hydraulic line -5- into the brake fluid reservoir.

Fig 2: Identifying Brake Master Cylinder Components

Courtesy of AUDI OF AMERICA, LLC

-- Fill the brake fluid up to the marking.

-- Bleed the brake system. Refer to HYDRAULIC SYSTEM .

-- For manual vehicles, bleed the clutch. Refer to CLUTCH MECHANISM, BLEEDING for 0B2, or CLUTCH MECHANISM, BLEEDING for 0B4 .

-- Install the plenum chamber bulkhead. Refer to OVERVIEW - BULKHEAD .

-- Install the tower brace. Refer to TOWER BRACE, REMOVING AND INSTALLING .

-- Install the engine cover.

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

-- Perform the ESP driving and system test.