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

WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. 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: Securing Special Tool 11 0 290 In Sprocket

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: Installing Special Tool (11 4 120)

Courtesy of BMW OF NORTH AMERICA, INC.

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 Chain Tensioner And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.