11 66 000 Removing and installing/replacing vacuum pump (N55) - up to March 2012

WARNING: This page does not describe the selected car, but rather 33 other vehicles, including the 2018 BMW M6, 2018 BMW 650i xDrive, 2018 BMW 650i, 2018 BMW 640i xDrive, and 2018 BMW 640i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

Necessary preliminary tasks:

Remove DRIVE BELT .
Remove TENSIONER for drive belt.
Remove SEALING COVER for vacuum pump.
Remove HIGH PRESSURE PUMP .
Disconnect vacuum line from vacuum pump.

Rotate crankshaft at central bolt.

Turn sprocket wheel until drilled holes and screws of vacuum pump match up.

Screw in special tool 11 8 650 .

Secure special tool 11 0 290 in sprocket and to special tool 11 8 650 .

Release screw (1).

Tightening torque 11 66 2AZ .

Fig 1: Screwing Special Tool 11 8 650

Courtesy of BMW OF NORTH AMERICA, INC.

Press chain tensioner (1) with chain in direction of arrow.

Install special tool 11 4 120 .

Remove sprocket (2) in direction of arrow.

Fig 2: Removing Sprocket

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Release screws (1).

Tightening torque 11 66 1AZ .

Release screws (1).

Secure screws (1) against falling out.

Remove vacuum pump.

Installation note:

Replace seal.

Fig 3: Identifying Vacuum Pump Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.