11 66 000 Removing and installing/replacing vacuum pump (N55) - up to March 2012
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 .
Press chain tensioner (1) with chain in direction of arrow.
Install special tool 11 4 120 .
Remove sprocket (2) in direction of arrow.
Release screws (1).
Tightening torque 11 66 1AZ .
Release screws (1).
Secure screws (1) against falling out.
Remove vacuum pump.
Installation note:
Replace seal.
Assemble engine.