11 12 000 Removing and installing, sealing cylinder head cover (M52TU / M54 / M56)

WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2006 BMW 330Ci, 2005 BMW 330xi, 2005 BMW 330i, 2005 BMW 330Ci, and 2004 BMW 330xi. However, it is still accessible from the selected car via links, so may be relevant.

Remove engine cover. Remove and Install Engine Cover

Remove ignition coils. See IGNITION COIL

Remove wiring harness of ignition coils from cylinder head cover and place to one side.

NOTE: Illustration on M54 engine.

Press lock.

Pull off the hose for the engine breather.

Fig 1: Pulling Off The Hose For Engine Breather

Courtesy of BMW OF NORTH AMERICA, INC.

Remove grounding straps (1).

Remove cylinder head cover.

Fig 2: Identifying Cylinder Head Cover

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Remove sealing debris from sealing faces of cylinder head and cylinder head cover.

Apply a sealing bead of Drei Bond 1209 (refer to BMW Parts Service) on left and right sides at transition between cylinder head and VANOS adjustment unit.

Fig 3: Removing Sealing Debris From Sealing Faces

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Apply a thin and even sealing bead of Drei Bond 1209 (refer to BMW Parts Service) at transition to half-moon sections at VANOS adjustment unit.

Fig 4: Applying A Thin & Sealing Bead

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Illustration with engine removed.

Installation:

Apply a thin and even sealing bead of Drei Bond 1209 (refer to BMW Parts Service) at transition to half-moon sections at rear of cylinder head.

Check seals and replace if necessary.

Fig 5: Checking Seals

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Illustration with engine removed.

Installation:

Make sure gasket is correctly seated on rear and front ends of cylinder head.

Install cover bolts and align cylinder head cover.

Hand-tighten all cover bolts without preload. Tighten cap nuts crosswise from inside to outside.

Fig 6: Making Sure Gasket Is Correctly Seated On Rear & Front Ends Of Cylinder Head

Courtesy of BMW OF NORTH AMERICA, INC.