Brake Master Cylinder, Removing And Installing: Installing

WARNING: This page is about a different car, the 2022 Audi S3, 2022 Audi RS 3, 2022 Audi A3 Quattro, and 2022 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.

Install in the reverse order of removal while noting the following:

Replace the self-locking nuts after removing.
Replace the O-ring between the master brake cylinder and the brake booster.
Do not let any brake fluid run into the brake booster.

-- When inserting the brake master cylinder, make sure the pushrod is seated correctly in the brake booster.

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

-- Install the battery tray. Refer to BATTERY TRAY, REMOVING AND INSTALLING .

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

CAUTION:

Faulty brakes increase the risk of an accident.

- Make sure the brakes are working correctly before driving the vehicle for the first time.