Brake Booster, Removing And Installing: Installing

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2018 Audi S6, 2018 Audi A6 Quattro, 2018 Audi A6, 2017 Audi S6, and 2017 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

-- Before installing brake booster, clean plenum chamber of remaining escaping brake fluid.

-- When installing together the brake master cylinder and brake booster, make sure that the push rod is correctly located in the brake master cylinder.

-- Make sure that boot did not slip out of the circumferential groove, as shown here.

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-- Carefully install the brake booster in the guide and tighten.

-- Tighten the bolts -1- for the brake booster.

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-- Insert the vacuum hose into the brake booster.

CAUTION:

There is a Risk of damaging the vacuum hoses.

A damaged vacuum hose must be replaced.

-- Insert the brake lines -2- into the master brake cylinder first and tighten them loosely.

-- Tighten the brake lines -2-.

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

-- Install the plenum chamber bulkhead. Refer to PLENUM CHAMBER BULKHEAD, REMOVING AND INSTALLING . .

-- Attach the brake pedal to the brake booster. Refer to BRAKE PEDAL, ATTACHING TO BRAKE BOOSTER .

NOTE:

Make sure the ball head on the brake booster is installed correctly into the brake pedal mount.

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

NOTE:

It must be bled on each bleeder screw. Bleed the brake caliper with two bleed screws first on the inner screw.

WARNING:

Risk of accident!

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