11 66 000 Removing and installing/replacing vacuum pump (N52T)

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Special tools required:

Necessary preliminary tasks:

Remove DRIVE BELT .
Remove BELT TENSIONER for drive belt.
Remove SEALING CAP for vacuum pump.
Remove intake PLENUM .

Rotate crankshaft at central bolt.

Rotate camshaft sprocket (3) until drilled holes and screws (1) match up.

Screw in special tool 11 4 362 .

Secure special tool 11 0 290 in sprocket (3) and on special tool 11 4 362 .

Release screw (2).

Tightening torque: 11 66 2AZ .

Release screws (1) and secure against falling out.

Tightening torque: 11 66 1AZ .

Fig 1: Securing Special Tool (11 0 290) To Sprocket

Courtesy of BMW OF NORTH AMERICA, INC.

Remove vacuum pump towards rear.

Installation note:

Replace gasket.

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

Insert special tool 11 4 120 .

Remove sprocket (2) in direction of arrow.

Fig 2: Inserting Special Tool (11 4 120)

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.