ABS Control Module -J104-, DISCONNECTING FROM ABS Hydraulic Unit -N55-, ABS MARK 70: Removing

-- Get the coding from the ABS Control Module -J104- and write it down.

-- Use the Vehicle Diagnostic Tester.

• Chassis 
• Brake System 
• Anti-lock braking system Anti-lock Brake System (ABS)/ASR Mark 70 
• Function 
• Check coding in the Anti-lock Brake System (ABS) control module J104 

Remove the ABS Hydraulic Unit -N55- together with the ABS Control Module -J104-. Refer to ABS Control Module -J104- AND ABS Hydraulic Unit -N55- WITH 4-CYLINDER GASOLINE ENGINE AND ABS MARK 70 ABS/ASR .

Fig 1: Identifying Sealing Plug Repair Set, Part No. 1 H0 698 311 A

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Install the transportation protection for the valve domes on the ABS Hydraulic Unit -N55- after separating the ABS Control Module -J104- from the ABS Hydraulic Unit -N55-.

The warranty on the ABS Hydraulic Unit -N55- will not be honored if the transportation protection is missing.

1. Transport protection for valve body (foam)
2. M10 plug
3. M12 plug

-- Place the ABS Hydraulic Unit -N55- and the ABS Control Module -J104- on a clean level surface facing upward.

-- Remove the bolts -arrows-.

Fig 2: Locating Control Module Torx Bolts

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Remove the ABS Control Module -J104- from the ABS Hydraulic Unit -N55- in the direction of the -arrow- without tilting it.

Fig 3: Control Module Pulled Off From Hydraulic Unit Without Angling

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Carefully remove all the seals from the valve domes on the ABS Hydraulic Unit -N55-.

-- Cover ABS Control Module -J104- solenoid coils with a lint-free cloth.

Use the valve body transportation protection after disconnecting the ABS Control Module -J104- and the ABS Hydraulic Unit -N55-.

Installing. Refer to CONTROL MODULE, ATTACHING TO HYDRAULIC UNIT .