Bleeding The Brake System

WARNING: This page is about a different variant/trim than selected.

NOTE:

POSSIBLE VERSIONS: BRAKE CALIPER WITH TWO BLEED SCREWS.

-- Attach the adapter -1- to the brake fluid reservoir.

Fig 1: Connecting Filler Hose -2- On Brake Charger/Bleeder Unit VAS 5234 To Adapter

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-- Connect the hose -2- on the brake charger/bleeder unit:VAS 5234 to the adapter.

-- Adjust the correct pressure on the brake charger/bleeder unit:VAS 5234 (refer to the Operating Instructions).

-- Remove the cap -1- from the bleed screw on the left front brake caliper.

Fig 2: Identifying Bleeder Screw Cap

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-- Install the bleed hose -1- on the bleed screw from the inside of the wheel rim.

Fig 3: Identifying Collector Bottle Bleeder Hose

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NOTE:

It is required to remove the wheels for specific tire combinations. Refer to WHEEL BOLTS, TIGHTENING .

The bleed hose must fit tightly over the bleed screw to prevent air from getting into the brake system.

The brake fluid level in the reservoir must be high enough so that air cannot get into the brake system.

For RHD vehicles, begin with the front right.

If there are two bleeder screws (depending on the vehicle equipment) per brake caliper, first connect the inner bleeder screw and then the outer.

-- Open the bleed screw and let the brake fluid drain out SEQUENCE AND BRAKE FLUID CAPACITY TABLE .

-- Close bleeder screw.

-- Reattach the brake caliper bleeder screw cap.

-- Repeat the steps for the front right.

-- Remove both bleeder screw caps -1- from the rear left brake caliper.

Fig 4: Identifying Bleeder Screw Cap (Rear)

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-- Select the :VAS 6564 ratchet and the corresponding socket wrench and connect them.

-- Guide the bleed hose -1- on :VAS 6564 through the inside of the rim using the ratchet -2- socket -3- and attach it to the bleed screw.

Fig 5: Bleeding Rear Brakes

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-- Open the bleed screw with the ratchet -2- and drain the brake fluid SEQUENCE AND BRAKE FLUID CAPACITY TABLE .

-- Close bleeder screw.

Brake System With 2 Bleed Screws

-- Guide the bleed hose -1- on :VAS 6564 through the outside of the rim using the ratchet -2- socket -3- and attach it to the bleed screw.

Fig 6: Bleeding Rear Brakes

Courtesy of AUDI OF AMERICA, LLC

-- Open the bleed screw with the ratchet -2- and drain the brake fluid SEQUENCE AND BRAKE FLUID CAPACITY TABLE .

-- Close bleeder screw.

-- Install the bleeder screw cap on the brake caliper.

-- Repeat the steps for the rear right.