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

WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. However, it is still accessible from the selected car via links, so may be relevant.

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: View Of Removed Engine On Lifting Table Special Tool (81 22 2 184 136)
Courtesy of BMW OF NORTH AMERICA, INC.

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 Inlet And Exhaust Adjustment Unit Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Release bolts (1) at front from cylinder head.

Fig 3: Identifying Bolts At Front Of Cylinder Head

Courtesy of BMW OF NORTH AMERICA, INC.

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

Remove all cylinder head bolts with washers.

Fig 4: Left Cylinder Head Bolt Tightening/Loosening Sequence

Courtesy of BMW OF NORTH AMERICA, INC.

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

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 Joint Between Engine Block And Timing Case Cover

Courtesy of BMW OF NORTH AMERICA, INC.

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

Installation note:

Renew cylinder head gasket (2).

Fit new cylinder head gasket (2).

NOTE: Graphic corresponds to cylinders 1-4.

Fig 6: Identifying Fitting Sleeves And Cylinder Head Gasket

Courtesy of BMW OF NORTH AMERICA, INC.

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.

Tightening torque 11 12 1AZ .

Fig 7: Left Cylinder Head Bolt Tightening/Loosening Sequence

Courtesy of BMW OF NORTH AMERICA, INC.

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

Tightening torque 11 12 2AZ .

Fig 8: Identifying Bolts At Front Of Cylinder Head

Courtesy of BMW OF NORTH AMERICA, INC.

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

Tightening torque 11 31 3AZ .

Fig 9: Identifying Inlet And Exhaust Adjustment Unit Screw

Courtesy of BMW OF NORTH AMERICA, INC.

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 .