Control Module, Installing On Hydraulic Unit

Special tools and workshop equipment required

Torque Screwdriver: V.A.G 1624

Fig 1: Identifying Torque Screwdriver VAG1624
Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
ESD Work Surface: VAS 6613

Fig 2: ESD Work Surface
Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
Torx insert T25

CAUTION:

Excessive shaking (for example, dropping, impact) may destroy the control module. The control module must then no longer be used.

Surfaces must be cleaned before assembling.

-- Place the control module on the hydraulic unit without tilting.

-- Using the provided Torx bolts, alternatingly tighten the hydraulic unit and the control module in two steps.

CAUTION:

The hydraulic unit threads cannot be re-cut to secure the control module. If the threads are damaged, then the bolts are difficult to install by hand or the bolts cannot be tightened to the tightening specification. The hydraulic unit must be replaced.

Tightening Specification

Tighten the new Torx bolts in two steps, switching back and forth.
1. Step: preliminary tightening specification: 1 Nm to 1.5 Nm (to position the seal)
2. Step: final tightening specification: 2.5 Nm
Refer to OVERVIEW - CONTROL MODULE AND HYDRAULIC UNIT

CAUTION:

A new control module may be installed a maximum of three times to a used hydraulic unit to ensure that the elastic seal seals sufficiently.

Do not install a used control module.