Brake Master Cylinder, Removing And Installing: Installing

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2017 Audi SQ5, 2017 Audi Q5, 2016 Audi SQ5, 2016 Audi Q5, and 2015 Audi SQ5. However, it is still accessible from the selected car via links, so may be relevant.

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 new nuts -3- and tighten. Note torque.

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

Courtesy of AUDI OF AMERICA, LLC

-- Install the brake lines -2- on the brake master cylinder. Note torque.

Fig 2: Identifying Brake Master Cylinder Components

Courtesy of AUDI OF AMERICA, LLC

-- Install the brake fluid reservoir -1-, refer to BRAKE FLUID RESERVOIR, REMOVING AND INSTALLING .

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

-- Fill the brake fluid up to the marking.

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

-- Bleed the hydraulic system, refer to HYDRAULIC SYSTEM, BLEEDING .

-- With manual transmissions, bleed the clutch .

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

Applies to hybrid vehicles

WARNING:

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

-- Install 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

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

-- Perform ESP driving and system test.