Abs Control Module -J104- And Abs Hydraulic Unit -N55-, Removing And Installing, Hybrid And Abs Mark 60 EC Abs/EDL/ASR/Esp: Removing

Component Location:

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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- !

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.

-- Disconnect the battery. Refer to BATTERY .

CAUTION:

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

Follow the steps for disconnecting the battery.

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

-- Remove the catalytic converter -1-. Refer to EMISSIONS CONTROL (CPLA, CPPA, CPKA, CPRA) , EMISSIONS CONTROL (CBPA, CKJA) , EMISSIONS CONTROL SYSTEM (CVCA, CUUA, CUUB, DELA, DEBA, DEJA, DGMA) and EMISSIONS CONTROL SYSTEM (CNLA, CRJA) .

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

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

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-- Unclip the cover -2-.

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-- Unclip the brake lines -1- on the bracket -3-.

-- Insert the :VAG1869/2 .

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

-- 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 brake caliper breather valve/left rear brake cylinder.

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-- Open the breather valve.

-- 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

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

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

-- Seal brake lines and threaded holes with Sealing Plugs.

-- Label brake lines -1 through 4- and then remove them.

-- Seal brake lines and threaded holes with Sealing Plugs.

-- Remove the hex fitting bolt from the bracket -arrow-.

-- Remove the ABS Hydraulic Unit -N55- with the ABS Control Module -J104- and the bracket sideways in direction of -arrow- from the rubber bushings on the bracket.

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

-- Remove the bracket in the vehicle from the hydraulic unit -arrows- (only on engines with too little clearance between the cross panel and engine).

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