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

WARNING: This page is about a different car, the 2005 BMW Z4, 2004 BMW Z4, and 2003 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

Remove engine cover.

Remove 12 13 511 IGNITION COILS (M54) .

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

NOTE: Illustrations are from an M54 engine.

Press lock.

Pull off the hose for the engine breather.

Fig 1: Disconnecting Hose For Engine Breather

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Remove grounding straps (1).

Remove cylinder head cover.

Fig 2: Removing Grounding Straps

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Installation:

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

Apply a sealing bead of Drei Bond 1209 on left and right sides at transition between cylinder head and VANOS adjustment unit.

Fig 3: Applying Sealing Bead Of Drei Bond

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Installation:

Apply a thin and even sealing bead of Drei Bond at transition to half-moon sections at VANOS adjustment unit.

Fig 4: Applying Thin And Even Sealing Bead Of Drei Bond

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NOTE: Illustration with engine removed.

Installation:

Apply a thin and even sealing bead of Drei Bond at transition to half-moon sections at rear of cylinder head.

Check seals and replace if necessary.

Fig 5: Checking Seals

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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: Installing Cover Bolts

Courtesy of BMW OF NORTH AMERICA, INC.