ABS Control Module -J104- /ABS Hydraulic Unit -N55-, REMOVING AND INSTALLING, RHD WITH ABS MARK 70 ABS/ASR: Removing

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

Installation location:

Fig 1: Configuration

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Brake Booster with Tandem Brake Master Cylinder
ABS Hydraulic Unit -N55- with ABS Control Module -J104-

CAUTION:

Do not confuse the brake lines when connecting them to the tandem master cylinder and the ABS Hydraulic Unit -N55-. Mark the lines in their installed position before removing them.

Do not bend the brake lines near the ABS Hydraulic Unit -N55- !

-- Retrieve the coding from the ABS Control Module -J104- and write it down. Refer to Vehicle Diagnostic Tester.

NOTE:

The battery ground cable must be disconnected for the following procedure. Check if a coded radio is installed. If necessary, obtain anti-theft code beforehand.

CAUTION:

Danger of causing damage to electronic components when disconnecting the battery.

Follow the steps for disconnecting the battery.

Vehicles with 2.0L gasoline engine and turbocharger

Fig 2: Identifying Engine Cover Attachment Points

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-- Remove the engine cover upward from the attaching points -arrows-. Refer to ENGINE COVER, REMOVING AND INSTALLING (CPLA, CPPA, CPKA, CPRA)ENGINE COVER, REMOVING AND INSTALLING (DDSA, DDSB) .

Vehicles with 1.4L gasoline engine, turbocharger and compressor:

Fig 3: Identifying Engine Cover Brackets

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-- Lift engine cover -3- upward at points -1- in -direction of arrow-.

-- Pull cover out of bracket -2- in -direction of arrow-.

Vehicles with Diesel Engine:

Fig 4: Engine Cover

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-- Remove engine cover near -arrows-.

-- Pay attention to the sequence given -1- to -4-. Refer to ENGINE COVER, REMOVING AND INSTALLING (CPLA, CPPA, CPKA, CPRA)ENGINE COVER, REMOVING AND INSTALLING (DDSA, DDSB) .

-- Reach as far as possible under the engine cover.

Continuation for All Vehicles:

Fig 5: Air Filter, Assembly Over View

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-- If necessary, remove the intake hose -2-. Refer to OVERVIEW - AIR FILTER HOUSING (CPLA, CPPA, CPKA, CPRA) or OVERVIEW - AIR FILTER HOUSING (DDSA, DDSB) .

-- To do this, loosen clamps -1-.

-- Seal the openings with the Engine Bung Set: VAS6122 .

-- Disconnect and remove the connector from the ABS Control Module -J104- in -direction of the arrow-.

Fig 6: Identifying Fuse, Locking Mechanism And Connector

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-- Push fuse -2- downward in -direction of arrow-.

-- Unlock the locking mechanism -1- to disconnect the connector -3- from the ABS Control Module -J104-.

-- To do this, press the locking mechanism -1- downward in -direction of arrow-.

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

Fig 7: Identifying Brake Pedal Depressor V.A.G 1869/2

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-- Remove front left caps -1-.

Fig 8: Identifying Bleeder Screw Cap

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-- Remove rear left caps -1-.

Fig 9: Identifying Bleeder Screw Cap (Rear)

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Use a suitable bleeder hose

It must fit tightly on the bleeder valve so that no air can get into the brake system

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

Fig 10: Identifying Bleed Valve

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-- Open the breather valve.

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

Fig 11: Identifying Bleed Valve

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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 .

Vehicles with Manual Transmission:

Fig 12: Identifying Hydraulic Line And Bracket

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-- Unclip hydraulic line -1- on bracket -2- -arrows-.

Continuation for All Vehicles:

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

Make sure no brake fluid gets on the contacts.

-- Mark brake lines -A- and -B- from brake master cylinder.

Fig 13: Identifying Brake Lines

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

-- Immediately seal the threaded holes with the plugs from the assembly repair kit.

-- Close brake lines immediately using Sealing Plugs or with suitable plugs from the : VAS6122 .

-- Mark brake lines -1- to -4-, unscrew and seal.

-- Immediately seal the threaded holes with the plugs from the assembly repair kit.

-- Close brake lines immediately using Sealing Plugs or with suitable plugs from the : VAS6122 .

-- Remove the ABS Hydraulic Unit -N55- and the ABS Control Module -J104- in direction of -arrow- and pull upward out of the shock absorbers.

Fig 14: Identifying Hydraulic Unit With Control Module Upward Removed Out Of Shock Absorbers

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-- Remove the ABS Hydraulic Unit -N55- with the ABS Control Module -J104-.