Abs Control Module And Abs Hydraulic Unit, Removing And Installing, RHD: Removing

Component location of the ABS Hydraulic Unit -N55- and the ABS Control Module -J104- in RHD vehicles:

Fig 1: Configuration

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1 - Brake Booster with Master Brake Cylinder

2 - ABS Hydraulic Unit -N55- and ABS Control Module -J104-

CAUTION:

Risk of destroying the brake lines by bending.

Never forcefully bend the brake lines in the hydraulic unit area.

-- Disconnect the battery. Refer to BATTERY, DISCONNECTING AND CONNECTING .

Vehicles with Engine Compartment Battery:

-- Remove the battery. Refer to BATTERY, REMOVING AND INSTALLING .

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

Continuation for All Vehicles:

Fig 2: Identifying Brake Pedal Depressor V.A.G 1869/2

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-- Insert the Brake Pedal Actuator: VAG1869/2 .

-- Remove the noise insulation. Refer to OVERVIEW - NOISE INSULATION .

-- Press the locking mechanism downward -arrow A-.

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NOTE:

The illustration shows the installation position of the ABS Hydraulic Unit -N55- and the ABS Control Module -J104- in a LHD vehicle.

-- Release the connector -arrow B-.

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-- Remove the connector -1-.

-- Attach the bleeder bottle bleed hose -1- to the left front brake caliper breather valve.

Fig 3: Identifying Bleed Valve

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-- Open the breather valve.

-- Attach the bleeder bottle bleed hose -1- to the left rear brake caliper breather valve.

Fig 4: Identifying V.A.G 1869/2

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-- Open the breather valve.

-- Push the brake pedal at least 60 mm using the Brake Pedal Actuator: VAG1869/2 .

-- Close the left front and left rear bleeder valves.

-- Do not remove the Brake Pedal Actuator: VAG1869/2 .

-- Place enough lint-free cloths under the ABS Control Module -J104- and the ABS Hydraulic Unit -N55-.

NOTE:

Make sure that none of the brake fluid gets onto the electrical contacts on the ABS Control Module -J104-.

-- First label both brake lines from the brake master cylinder -A- and -B-.

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-- Remove both brake master cylinder brake lines -A- and -B- from the ABS Hydraulic Unit -N55-.

-- Immediately seal the threaded holes with the plugs from the assembly repair kit 5Q0 698 311.

-- Label the remaining brake lines (brake caliper) and remove. Seal the threaded holes -2-.

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-- Remove the ABS Hydraulic Unit -N55- -1- together with the bracket -2- in the -direction of the arrow-.

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-- This will remove the rubber buffers -arrows- from the bracket stud bolts -3- at the same time.

-- Guide out the hydraulic unit from the vehicle.

-- Should the hydraulic control module be replaced, remove the bolts -arrows- and remove the mounting bracket -1-.

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