ABS Control Module -J104-, ATTACHING TO ABS Hydraulic Unit -N55-, MARK 70 ABS/ASR

Installing

Assembly is performed in the reverse order of removal. Note the following:

WARNING:

Excessive shaking (for example, dropping, impact) can damage the ABS Control Module -J104-. Do not use the ABS Control Module -J104- again if this happens.

NOTE:

A new ABS Control Module -J104- can be installed on an old ABS Hydraulic Unit -N55- twice, maximum. This assures the elastic seal will not leak.

A used ABS Control Module -J104- may not be installed a second time.

Surface must be cleaned before assembling.

-- Slide all sealing rings -A- slightly over the valve dome.

Fig 1: Identifying Sealing Rings Slid Over Valve Dome

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Place the ABS Control Module -J104- on the ABS Hydraulic Unit -N55- without tilting it.

Fig 2: Removing Control Module From Hydraulic Unit Without Angling

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Sealing rings are then brought into their end position.

-- Install the ABS Hydraulic Unit -N55- and ABS Control Module -J104- with the new bolts -arrows- provided.

Fig 3: Locating Control Module Torx Bolts

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

If a new ABS Control Module -J104- was installed, it must be coded.

Use the Vehicle Diagnostic Tester.

Chassis
Brake System
Anti-lock braking system ABS/ASR Mark 70
Function
ABS Control Module J104, coding

Tightening Specification

Component	Tightening Specification
ABS Control Module -J104- with ABS Hydraulic Unit -N55- Use new bolts.	5.5 Nm