Abs Control Module -J104- And Abs Hydraulic Unit -N55-, Removing And Installing, With 5-Cylinder Gasoline Engine And Abs Mark 70 Abs/ASR: Removing

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Component Location:

The ABS Control Module -J104- is attached to the ABS Hydraulic Unit -N55- and is located inside the engine compartment on the right side.

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

WARNING:

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.

Use the Vehicle Diagnostic Tester.

Chassis
Brake System
Anti-Lock Braking System ABS/EDL/ASR/ESP Mark 60 EC
Function
Check ABS Control Module J104 Coding

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.

-- Open clamp -2- and remove intake hose.

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-- If equipped, disconnect the connector -1- and remove.

-- Remove the bolts -3- and the intake hose.

-- Pull the engine with a jerk out of the fasteners first at the front in direction of -arrow 1-, then at the right rear in direction of -arrow 2- and finally at the left rear in direction of -arrow 3-.

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-- Carefully swivel engine cover out of rear area.

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-- If equipped, remove the nut -1- and remove the heat shield -2-.

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

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-- Insert the :VAG1869/2 .

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-- Remove front left caps -1-.

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-- Remove rear left caps -1-.

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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.

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-- Open the breather valve.

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

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-- Open the breather valve.

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

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

Do not remove the :VAG1869/2 .

-- 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.

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

-- Seal the threaded hole immediately with plugs from the assembly repair kit.

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

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

-- Seal the threaded hole immediately with 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.

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-- Turn the ABS Hydraulic Unit -N55- with the ABS Control Module -J104- upside down.

-- Unscrew and remove the bracket -item ) OVERVIEW - ABS MARK 70 (ABS/ASR)- from the ABS Hydraulic Unit -N55- inside the engine compartment.

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