34 51 550 Removing And Installing/Replacing DSC PRECHARGING Pump

WARNING: This page is about a different car, the 2008 BMW Alpina and 2007 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Observe safety instructions on raising the vehicle. See 00 ... ... LIFTING VEHICLE WITH A LIFTING PLATFORM .

After completing tasks, bleed brake system . See 34 00 050 BLEEDING BRAKE SYSTEM WITH DSC .

Remove microfilter (1).

Fig 1: Identifying Microfilter

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Disconnect plug connection (1).

Installation:

Make sure plug connection engages correctly.

Fig 2: Identifying Plug Connection

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Release brake lines (1) and (2).

Installation:

Tightening torque. See BRAKES - TIGHTENING TORQUES -- ALPINA .

Line connections (see designation on precharging pump):

HZ: Line to brake master cylinder

BA: Line to expansion tank

Fig 3: Identifying Brake Lines And Screws

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IMPORTANT: Do not mix up brake lines.
Catch escaping brake fluid.

Release screw (3).

Installation:

Tightening torque. See BRAKES - TIGHTENING TORQUES -- ALPINA .

Press catch (1) in direction of arrow and disconnect plug.

Fig 4: Pressing Catch

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Release screw (1).

Installation:

Tightening torque. See BRAKES - TIGHTENING TORQUES -- ALPINA .

Remove sleeve (2) and rubber mount (3).

Fig 5: Identifying Screw, Sleeve, Rubber Mount And Holders

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Installation:

Ensure proper seating of rubber mounts.

Modify holders (4) and (5).