ABS Control Module -J104- / ABS Hydraulic Unit -N55-, REMOVING AND INSTALLING: Removing

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-- Insert the : VAG1869/2 between the brake pedal and driver seat. Press the brake pedal down at least 60 mm.

TIP:

By doing this, the valves in the brake master cylinder are closed and the brake fluid reservoir does not run empty.

CAUTION:

Leaking brake fluid increases the risk of injury.

Risk of skin irritation and injury.

- Wear safety gloves.

-- Remove the protective cap -3- from the bleed screw -1- on a front brake caliper.

Fig 1: Identifying Protective Cap, Bleed Screw And Container Bleeder Hose

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-- Connect the bleeder bottle hose -2-.

-- Open the bleed screw to reduce the pressure in the brake system.

-- Close the bleed screw and remove the bleeder bottle.

-- Repeat the procedure on a rear brake caliper.

Do not remove the : VAG1869/2 .

-- Remove the engine/motor control module. Refer to ENGINE/MOTOR CONTROL MODULE -J623-, REMOVING AND INSTALLING 4.0L 4V TFSI or ENGINE/MOTOR CONTROL MODULE -J623-, REMOVING AND INSTALLING 2.9L; 3.0L 4V TFSI .

-- To protect against escaping brake fluid, place enough lint-free cloths in the area below the hydraulic control unit.

-- Mark the brake lines for reinstallation.

-- Remove the brake lines -1 and 2- from the ABS Hydraulic Unit -N55- and free up if required.

Fig 2: Hand Tightening Union Bolts

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CAUTION:

Risk of destroying the brake lines by bending.

- Never change the shape of the brake lines.

-- Seal the brake lines and threaded holes immediately with clean plugs from the : VAS6122 .

TIP:

Make sure that no brake fluid enters the control module connector housing.

-- Release the connector -3- and disconnect from the control module.

-- Free up the wires.

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CAUTION:

Risk of destroying the brake lines by bending.

- Never change the shape of the brake lines.

-- Remove the hydraulic control unit -1- carefully from the pins -arrows-.

CAUTION:

Clean the bolts and nuts before reusing.

Replace the bolts and nuts if damaged.

Replace the self-locking bolts and nuts after removing

-- Remove the bolt -arrow- and the bracket -1-.

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