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

Remove engine cover. See Figure

Remove ignition coils, refer to 12 13 511 REPLACING IGNITION COIL (M52, M52TU, S52, S50US, M54) .

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

Press lock.

Pull off the hose for the engine breather.

Fig 1: Pulling Off Hose For Engine Breather

Courtesy of BMW OF NORTH AMERICA, INC.

Remove grounding straps (1).

Remove cylinder head cover.

Fig 2: Removing Grounding Straps And 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 on left and right sides at transition between cylinder head and VANOS adjustment unit.

Fig 3: Applying Sealing Bead

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Apply a thin and even sealing bead of Drei Bond 1209 at transition to half-moon sections at VANOS adjustment unit.

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

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Apply a thin and even sealing bead of Drei Bond 1209 at transition to half-moon sections at rear of cylinder head.

Fig 5: Applying Thin And Even Sealing Bead Of Drei Bond

Courtesy of BMW OF NORTH AMERICA, INC.

Check seals and replace if necessary.

Installation: 

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

Install cover bolts and align cylinder head cover.

Fig 6: Installing Cover Bolts And Align Cylinder Head Cover

Courtesy of BMW OF NORTH AMERICA, INC.

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