34 51 527 Removing and installing or replacing DSC hydraulic unit

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

Necessary preliminary tasks:

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 completing work:

IMPORTANT: Do not mix up brake lines.

If necessary, mark before removal.

Close off connection bores with plugs.

Disconnect plug connection (1).

Press cover (2) gently to one side.

Unfasten brake lines (3).

Installation:

For tightening torque refer to 34 32 1AZ in34 32 BRAKE LINES .

Fig 1: Identifying Plug Connection, Cover And Brake Lines

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Unscrew nuts (1).

Installation:

For tightening torque refer to 34 51 6AZ in 34 51 SLIP CONTROL SYSTEM (DSC) .

Fig 2: Identifying Hydraulic Unit Mounting Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Tilt out hydraulic unit (1) in direction of side panel.

IMPORTANT: If necessary, release brake lines from holder on bulkhead.

Brake lines must not be bent!

Fig 3: Identifying Hydraulic Unit

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When replacing hydraulic unit:

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

Installation:

For tightening torque refer to 34 51 5AZ in 34 51 SLIP CONTROL SYSTEM (DSC) .

Fig 4: Identifying Hydraulic Unit Convert Holder And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

When replacing control unit: