Abs Control Module -J104-/Abs Hydraulic Unit -N55-, Removing And Installing, LHD: Removing

The ABS Control Module -J104- will be called the control module in the information that follows.

ABS Hydraulic Unit -N55- will be subsequently called hydraulic unit.

If the control module is replaced, the test plan to replace the control module must be performed.

-- Perform the "control module, replacing" function using the Vehicle diagnostic tester . Refer to Diagnostic Entries .

Continuation

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

Vehicles with Gasoline Engine (1.5L, 1.8L and 2.0L)

-- Remove the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .

Continuation for all vehicles

Vehicles with diesel engine

-- Remove the emissions control module. Refer to the appropriate service information .

Continuation for all vehicles

Hybrid vehicles

-- Remove the catalytic converter. Refer to CATALYTIC CONVERTER, REMOVING AND INSTALLING, FWD , or CATALYTIC CONVERTER, REMOVING AND INSTALLING, AWD .

Continuation for all vehicles

Vehicles with inserted plastic heat shield

-- Clip the heat shield -1- in the -direction of the arrow A- out of the bracket -2-.

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-- Remove the heat shield -1- in the -direction of the arrow B-.

Continuation for all vehicles

Vehicles with screwed on metal heat shield

-- Remove the nuts -2-.

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-- Remove the heat shield -1-.

Continuation for all vehicles

-- Push the lock washer -2- in the -direction of arrow B-.

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-- Release the connector -1- in the -direction of the arrow A-.

-- Disconnect the connector -1-.

-- Attach the bleed hose -2- for the first bleeder bottle to the breather valve -1- for the left front brake caliper -1-.

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-- Open the breather valve.

-- Attach the second bleeder bottle bleeder hose -2- to the left rear brake caliper bleed valve -1-.

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-- Open the breather valve.

-- Push the brake pedal at least 60 mm using the Brake Pedal Actuator :V.A.G 1869/2 .

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

-- Do not remove the Brake Pedal Actuator :V.A.G 1869/2 .

CAUTION:

Risk of destroying the brake lines by bending.

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

-- Unclip the cover from the bulkhead and unclip from the brake lines.

CAUTION:

Risk of damaging due to brake fluid leaking out.

Malfunctions of the electrical components possible due to corrosion.

- Make sure no brake fluid gets on the contacts.

- Place sufficient lint-free cleaning cloths in the area of the connectors.

-- Mark the brake lines.

Fig 1: Brake Line Loosening Sequence

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-- Remove the union bolts -1- through -6-.

-- Seal off the threaded holes and brake lines with suitable plugs from the Engine Bung Set :VAS 6122 and Sealing Plug Supplement Set :VAS 6122/1 .

-- Remove the hydraulic unit and control module -1- with the bracket -3- and rubber bushing -4- in the -direction of the arrow-.

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Vehicles with gasoline engine (2.0L)

-- Remove the right drive axle. Refer to DRIVE AXLE, REMOVING AND INSTALLING .

-- Remove the bolts -arrows-.

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-- Remove the heat shield -1-.

-- Remove the hydraulic unit and control module downward.

Continuation for all vehicles