11 12 000 Removing and installing/sealing cylinder head cover (N14)

Necessary preliminary tasks:

Unclip ignition wiring harness on cylinder head.
Remove rod-type ignition coils. See REPLACING IGNITION COILS .
Remove intake filter housing. See REMOVING AND INSTALLING OR REPLACING INTAKE FILTER HOUSING .

Release clamps (1 and 2).

Unlock connector (3) and remove.

Unlock and detach vacuum line (4).

Push the lock (5) of the vent hose together on the side (see illustration) and pull off toward the top.

Pull the vent hose off the cylinder head cover in the direction of the arrow.

Remove the vent hose with gaiter (7).

Release connector (6) and remove.

Installation note:

Install gaiter (7) dry and free from grease.

Fig 1: Detaching Vacuum Line And Removing Vent Hose With Gaiter

Courtesy of BMW OF NORTH AMERICA, INC.

Unclip engine wiring harness with holders (1).

Fig 2: Identifying Engine Wiring Harness With Holders

Courtesy of BMW OF NORTH AMERICA, INC.

Unclip engine wiring harness holder (1).

Fig 3: Identifying Engine Wiring Harness Holder

Courtesy of BMW OF NORTH AMERICA, INC.

Release oxygen sensors on cylinder head (1).

Fig 4: Release Oxygen Sensors On Cylinder Head (1)

Courtesy of BMW OF NORTH AMERICA, INC.

Detach grounding cable at bolt connection (2).

Undo cylinder head cover bolts in the sequence 13 to 1.

Fig 5: Identifying Cylinder Head Cover Bolts Tightening Sequence

Courtesy of BMW OF NORTH AMERICA, INC.

Replace seal (1).

Replace all seals (2).

Installation:

Clean all sealing surfaces.

Installation:

Seal all edges and joints on the cylinder head with sealing compound Drei Bond 1209.

NOTE: Pictures show N12.

Fig 6: Identifying Seals

Courtesy of BMW OF NORTH AMERICA, INC.

Secure bolts for cylinder head cover in sequence 1 to 13.

Tightening torque 11 12 4AZ .

Fig 7: Identifying Cylinder Head Cover Bolts Tightening Sequence

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.