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

WARNING: This page is about a different car, the 2011 BMW X6 and 2010 BMW X6. 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.

WARNING: High-voltage system - danger to life!

Necessary preliminary tasks:

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.

Fig 1: Supporting Engine And Front Axle Transmission Using Lift Truck (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 Guide Rail Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Release bolts (1) at front from cylinder head.

Fig 3: Identifying Front Cylinder Head Bolt

Courtesy of BMW OF NORTH AMERICA, INC.

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)

Courtesy of BMW OF NORTH AMERICA, INC.

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 Cylinder Head Sealing Face

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 Cylinder Head Gasket And Fitting Sleeves

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 Bolts Tightening/Loosening Sequence (N63)

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 Front Cylinder Head Bolt

Courtesy of BMW OF NORTH AMERICA, INC.

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

Tightening torque 11 31 3AZ .

Fig 9: Identifying Guide Rail Screw

Courtesy of BMW OF NORTH AMERICA, INC.

If necessary, install camshafts. See LEFT INTAKE CAMSHAFT and LEFT EXHAUST CAMSHAFT .

Install left INLET AND EXHAUST ADJUSTMENT UNITS .

Assemble engine.