34 51 527 Removing and installing/replacing DSC hydraulic unit

WARNING: This page is about a different car, the 2011 BMW X6 and 2010 BMW X6. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

High voltage system - danger to life!

WARNING:

The following points must be strictly adhered to before starting work:

Observe SAFETY INSTRUCTIONS for handling hybrid vehicles

Necessary preliminary tasks:

Read and comply with GENERAL INFORMATION
Extract brake fluid

NOTE:

Extract brake fluid out of expansion tank. Use a suction bottle used exclusively for drawing off brake fluid.

Do not reuse drawn out brake fluid.

After completion of the work:

BLEED BRAKING SYSTEM

Warning

Do not mix up the brake lines.

If necessary, mark before removal.

Brake lines must not be bent.

Close off connecting bores with seal plugs.

Disconnect plug connection (1).

Unfasten brake lines (2).

Tightening torque: 34 32 1AZ .

If necessary, release brake lines from holder on bulkhead.

Release screw (3).

Tightening torque: 34 51 6AZ .

Pull hydraulic control unit with holder out of guide pins (4) and remove.

Fig 1: Identifying Plug Connection, Brake Pipes And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

When replacing the hydraulic unit:

Release screws (1) and convert holder (2).

Installation NOTE:

Tightening torque: 34 51 5AZ .

Fig 2: Identifying DSC Control Unit Holder And Mounting Screws

Courtesy of BMW OF NORTH AMERICA, INC.

When replacing the hydraulic unit:

Carry out PROGRAMMING/ENCODING .
Carry out STEERING ANGLE SENSOR ADJUSTMENT
Brake line interchange check:
Function check of hydraulic control unit