34 52 516 Removing and installing/replacing DSC control unit (from 08/2010)

WARNING: This page is about a different variant/trim than selected.

Necessary preliminary tasks:

Remove HYDRAULIC UNIT .

IMPORTANT: Removing pump motor from valve block is not permitted!

Seal line connections with plugs (1) from control unit repair kit. Clean control unit.

Fig 1: Identifying Plugs

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

IMPORTANT: Control unit must not come into contact with dirt or moisture.

Carefully pull off control unit (2) without tilting.

Installation:

Replace screws.

Tighten in diagonal sequence in increments of 1 Nm

Tightening torque 34 51 7AZ

Fig 2: Identifying Control Unit And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Do not touch plug-in contacts (1) and sealing surface (2) with your fingers.
The seal for the electronic control unit deforms during fitting and thereby achieves its maximum sealing effect. The control unit must therefore not be removed again after installation or used a second time!
In the event of visible damage, the hydraulic control unit is can no longer be used!

Clean sealing surface (2) of hydraulic control unit with fluff-free cloth (do not use hard or sharp objects).

Fig 3: Identifying Plug-In Contacts And Sealing Surface

Courtesy of BMW OF NORTH AMERICA, INC.

Carry out PROGRAMMING/CODING .

Mix-up check of brake lines.

Adjustment/calibration of steering angle sensor.