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

Removing

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

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

Plugs 1H0 698 311 A

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

Transportation Protection for Valve Body (Foam)
M10 Plug
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 -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-.

WARNING:

The circuit board is exposed when the ABS Control Module -J104- is removed.
No moisture and dirt particles may get into the ABS Control Module -J104-.
The hydraulic pump must not be separated from the ABS Hydraulic Unit -N55-.
Avoid electrostatic charge!

-- Cover the solenoid coils of the ABS Control Module -J104- 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, INSTALLING ON HYDRAULIC UNIT .