Vacuum Pump: Service and Repair

11 66 000 Removing and installing/replacing vacuum pump (N54, N54T)

Special tools required:





Necessary preliminary work:
^ Remove drive belt.
^ Remove belt tensioner for drive belt.
^ Remove sealing cap for vacuum pump.
^ Remove high pressure pump.





Rotate crankshaft at central bolt.

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

Screw in special tool 11 8 650.

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

Release screw (1).

Tightening torque 11 66 2AZ.





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

Install special tool 11 4 120.

Remove camshaft sprocket (2) in direction of arrow.





Release screws (1).

Tightening torque 11 66 1AZ.

Release screws (1).

Secure screws (1) against falling.

Remove vacuum pump.

Installation note:
Replace gasket.

Assemble engine.