34 51 550 Removing and Installing/Replacing DSC Precharging Pump

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2008 BMW 750i, 2008 BMW 750Li, 2007 BMW 750i, 2007 BMW 750Li, and 2006 BMW 750i. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Observe safety when raising the vehicle.

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

Remove microfilter (1).

Fig 1: Identifying Microfilter

G04767106

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Installation:

Make sure plug connection engages correctly.

Fig 2: Identifying Plug Connection

G04767152

Courtesy of BMW OF NORTH AMERICA, INC.

Release brake lines (1) and (2).

Installation:

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

Line connections (see designation on precharging pump):

HZ: Line to brake master cylinder

BA: Line to expansion tank

Fig 3: Identifying Brake Lines & Screw

G04767153

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT:

Do not mix up brake lines.

Catch escaping brake fluid.

Release screw (3).

Installation:

Tightening torque 34 51 11AZ. See 34 51 SLIP CONTROL SYSTEM (ABS, ASC+T, DSC)

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

Fig 4: Pressing Plug

G04767154

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Installation:

Tightening torque 34 51 11AZ. See 34 51 SLIP CONTROL SYSTEM (ABS, ASC+T, DSC)

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

Installation:

Ensure proper seating of rubber mounts.

Modify holders (4) and (5).

Fig 5: Identifying Holders, Sleeve & Rubber Mount

G04767155

Courtesy of BMW OF NORTH AMERICA, INC.