11 12 105 Removing and installing left cylinder head (N63)

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Special tools required:

11 4 470 .
81 22 2 184 136.

Necessary preliminary tasks:

Drain COOLANT .
Remove front axle completely with engine and transmission.

The graphic shows the removed engine on a lifting table special tool 81 22 2 184 136.

The graphic shows the E72

Fig 1: Identifying Engine On Lifting Table Special Tool (81 22 2 184 136)

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Necessary preliminary tasks:

Check TIMING .
Remove left INLET AND EXHAUST ADJUSTMENT UNIT .

Release screw (1).

NOTE: Guide rail is loose from cylinder head.

Fig 2: Identifying Guide Rail Screw

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Release bolts (1) at front from cylinder head.

Fig 3: Identifying Cylinder Head Bolts

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Release cylinder head bolts in sequence (10 to 1).

Remove all cylinder head bolts with washers.

NOTE: For purposes of clarity, the graphic shows the camshafts removed.

Fig 4: Left Cylinder Head Bolts Tightening/Loosening Sequence (N63)

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Clean sealing faces of cylinder head and engine block; if necessary, remove gasket debris compound with special tool 11 4 470 . Make sure no gasket remnants drop into oil and cooling channels.

IMPORTANT: Risk of cracking!

Threaded bores in engine block must be free of dirt and oil

Check CYLINDER HEAD for leaks.

Check CYLINDER HEAD SEALING FACE for surface evenness.

Coat joint between engine block and timing case cover with Drei Bond 1209 (refer to BMW Parts Service).

NOTE: Graphic shows an N62 engine by way of example.

Fig 5: Locating Drei Bond 1209 Applying Area

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Check fitting sleeves (1) for damage and correct installation position.

Installation note:

Replace cylinder head gasket (2).

Fit new cylinder head gasket (2).

NOTE: Graphic corresponds to cylinders 1-4.

Fig 6: Identifying Cylinder Head Gasket And Fitting Sleeves

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Put the cylinder head on.

Do not wash off bolt coating.

Installation note:

Fit new cylinder head bolts.

Insert new cylinder head bolts and initially tighten so that they are free of play.

Tighten down cylinder head bolts in sequence 1 - 10.

Fig 7: Left Cylinder Head Bolts Tightening/Loosening Sequence (N63)

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Tightening torque 11 12 1AZ .

Install and tighten down bolts (1) between cylinder head and timing case cover.

Tightening torque 11 12 2AZ .

Fig 8: Identifying Cylinder Head Bolts

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Insert screw (1) of guide rail and tighten down.

Tightening torque 11 31 3AZ .

Fig 9: Identifying Guide Rail Screw

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If necessary, install camshafts . See 11 31 036 REMOVING AND INSTALLING/REPLACING LEFT EXHAUST CAMSHAFT (N63) or 11 31 032 REMOVING AND INSTALLING/REPLACING LEFT INLET CAMSHAFT (N63) .

Install left INLET AND EXHAUST ADJUSTMENT UNITS .

Assemble engine.

Fill and vent cooling system