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34 51 527 Removing and installing or replacing DSC hydraulic unit: Notes

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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.
Brake lines must not be bent.
Close off connection bores with plugs.

Disconnect plug connection (1).

Unfasten brake lines (2).

Tightening torque 34 32 1AZ  . See 34 32 BRAKE LINES .

If necessary, release brake lines from holder on bulkhead.

Unscrew bolt (3).

Tightening torque 34 51 6AZ  . See 34 51 SLIP CONTROL SYSTEM (DSC) .

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

Fig 1: Identifying Plug Connection And Brake Lines With Bolt
G04794768Courtesy of BMW OF NORTH AMERICA, INC.