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

Remove engine cover.

Remove ignition coils. Refer to 12 13 511 REPLACING IGNITION COILS (M54) .

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

NOTE: Illustration on M54 engine.

Press lock.

Fig 1: Pulling Off Hose For Engine Breather

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Pull off the hose for the engine breather.

Remove grounding straps (1).

Fig 2: Removing Grounding Straps

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Remove cylinder head cover.

Installation:

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

Fig 3: Removing Sealing Debris From Sealing Faces

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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.

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: Identifying VANOS Adjustment Unit

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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.

Fig 5: Applying Drei Bond

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Check seals and replace if necessary.

NOTE: Illustration with engine removed.

Installation:

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

Fig 6: Installing Cover Bolts

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Install cover bolts and align cylinder head cover.

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