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

Special tools required: 

• 11 4 470
• 81 22 2 184 136 (lifting table)

Necessary preliminary tasks: 

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

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

  The illustration shows the E72

  Fig 1: Identifying Front Axle Removed With Engine/Transmission On Lifting Table

  Courtesy of BMW OF NORTH AMERICA, INC.

Necessary preliminary tasks: 

• Check timing. See 11 31 070 CHECKING CAMSHAFT TIMING ON LEFT SIDE (N63) and 11 31 071 CHECKING CAMSHAFT TIMING ON RIGHT SIDE (N63) .
• Remove left INLET AND EXHAUST ADJUSTMENT UNIT

Release screw (1).

Fig 2: Identifying Screw Location

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Release bolts (1) at front from cylinder head.

Fig 3: Identifying Bolts At Front Cylinder Head

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

Remove all cylinder head bolts with washers.

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.

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 2.1 .

Fig 5: Identifying Sealing Joint Between Engine Block And Timing Case Cover

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

Installation note: 

Renew cylinder head gasket (2). 

Fit new cylinder head gasket (2).

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 screws. 

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

Tighten down cylinder head bolts in sequence 1 - 10.

Tightening torque 11 12 1AZ .

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

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

Tightening torque 11 12 2AZ .

Fig 8: Identifying Bolts At Front Cylinder Head

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

Tightening torque 11 31 3AZ .

Fig 9: Identifying Screw Location

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