11 12 000 Removing and installing/sealing cylinder head cover (N47 D20 O1)

IMPORTANT: When carrying out repair work on the oil, coolant or fuel circuit, the alternator must be protected against dirt contamination.
Cover alternator with suitable materials.

Necessary preliminary tasks:

Remove INTAKE SILENCER HOUSING only F10, F11, F07, F25.
Remove acoustic cover at front (only F10, F11, F07) and rear.
Remove bottom section of microfilter (only E9x).
Remove tension struts, only E9x.
Remove intake PLENUM .
Remove all INJECTORS .
Remove PRESSURE ACCUMULATOR .
Release engine wiring harness in area of cylinder head cover. See ENGINE WIRING HARNESS .

Release screw (1).

Tightening torque: 11 12 5AZ .

Fig 1: Identifying Cylinder Head Cover And Screw

G09943765

Courtesy of BMW OF NORTH AMERICA, INC.

Turn complete oil filler neck (1) clockwise by approx. 25°.

Remove oil filler neck (1) towards top.

Installation note:

Check O-ring for damage.

Fig 2: Turning Oil Filler Neck

G09943766

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Unclip cable clip (2) and lay to one side.

Fig 3: Identifying Cable Clip And Screw

G09943767

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1 and 2).

Tightening torque: 11 12 2AZ .

Fig 4: Identifying Screws

G09943768

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Tightening torque: 11 12 2AZ .

Remove cylinder head cover by lifting it out.

Fig 5: Identifying Cylinder Head Cover Screws

G09943769

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Replace profile seals (1 and 2).

Fig 6: Identifying Profile Seals

G09943770

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check engine for leak tightness.