11 12 105 Removing and installing left cylinder head (M62)

WARNING: This page is about a different variant/trim than selected.

Cylinder Bank 5 To 8

Remove left exhaust manifold,

refer to 11 62 060 REMOVING AND INSTALLING/REPLACING LEFT EXHAUST MANIFOLD (M62/N62) .

Unfasten drain plug for coolant on left engine block. Drain and dispose of coolant.

Installation:

Replace sealing ring.

Tightening torque,

refer to 11 11 5AZ in ENGINE - TIGHTENING TORQUES - X5 4.6L .

Top up coolant. Vent cooling system and check for leaks,

refer to 17 00 005 DRAINING AND TOPPING UP COOLANT (M62) .

Remove both cylinder head covers,

refer to 11 12 004 REMOVING AND INSTALLING/SEALING BOTH CYLINDER HEAD COVERS (M62) .

Remove spark plugs,

refer to 12 12 011 REPLACING ALL SPARK PLUGS (M60, M62 .

Remove intake air manifold,

refer to 11 61 050 REMOVING AND INSTALLING INTAKE AIR MANIFOLD (M62) .

Remove coolant manifold,

refer to 11 53 325 REMOVING AND INSTALLING/REPLACING COOLANT MANIFOLD (M62) .

Removal

Removal of cylinder head is described separately from installation.

Remove left camshaft adjustment unit,

refer to 11 36 610 REMOVING AND INSTALLING/REPLACING LEFT CAMSHAFT ADJUSTMENT UNIT (M62 VANOS FROM 9/98) .

Pull back special tool 11 5 180 until flywheel is no longer secured in place.

Fig 1: Pulling Back On Special Tool 11 5 180

Courtesy of BMW OF NORTH AMERICA, INC.

Lift timing chain and hold under tension.

NOTE: Note marks.

Crank engine at central bolt against direction of rotation to 45° before TDC position.

Fig 2: Placing Crankshaft At 45° BTDC

Courtesy of BMW OF NORTH AMERICA, INC.

Remove special tools 11 2 444/443/442/446.

Fig 3: Removing Special Tools

Courtesy of BMW OF NORTH AMERICA, INC.

Detach guide rail from cylinder head.

Fig 4: Detaching Guide Rail From Cylinder Head

Courtesy of BMW OF NORTH AMERICA, INC.

Release cylinder head bolts in sequence 10 to 1. Lift off cylinder head.

Fig 5: Identifying Cylinder Head Bolts Releasing Sequence

Courtesy of BMW OF NORTH AMERICA, INC.

Installation

Installation of cylinder head is described separately from removal.

Clean sealing faces of cylinder head and engine block, if necessary using wooden scraper to remove gasket debris. Ensure that no gasket debris drops into the oil and coolant ducts.

Threaded bores in engine block must be free of dirt and oil (danger of cracking the block)

Coat joint between engine block and timing case cover with Drei Bond 1209.

Fig 6: Sealing Joint Between Engine Block And Timing Case Cover

Courtesy of BMW OF NORTH AMERICA, INC.

Check that dowel sleeves are undamaged and correctly located.

Place new cylinder head gasket in position.

Fig 7: Cylinder Head Gasket Installed Position

Courtesy of BMW OF NORTH AMERICA, INC.

Put the cylinder head on. Install new cylinder head bolts. Do not wash off bolt coating.

NOTE: Use special tool 00 9 120 as a torsion angle bracket.

Fig 8: Torquing Cylinder Head Bolts Using Special Tool 00 9 120

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 9: Left Cylinder Head Bolts Tightening/Loosening Sequence (M62)

Courtesy of BMW OF NORTH AMERICA, INC.

Tighten down cylinder head bolts in sequence 1 to 10. Tightening torque,

refer to 11 12 8AZ ENGINE - TIGHTENING TORQUES - X5 4.6L .

Insert and tighten down guide rail screw.

Fig 10: Installing Guide Rail Screw

Courtesy of BMW OF NORTH AMERICA, INC.

CAUTION: Do not damage the cylinder head.

Rotate camshafts until camshaft markings face upwards.

Fig 11: Identifying Camshaft Markings

Courtesy of BMW OF NORTH AMERICA, INC.

Align camshafts.

Fit special tool 11 2 446/442 to camshafts on cylinder bank 5 to 8.

Fig 12: Fitting Special Tools To Camshafts

Courtesy of BMW OF NORTH AMERICA, INC.

CAUTION: Do not damage the cylinder head.

Align camshafts with an open-end wrench so that special tools 11 2 442/446 rest without a gap on the cylinder head.

Fig 13: Aligning Camshafts With An Open-End Wrench

Courtesy of BMW OF NORTH AMERICA, INC.

Fit special tool 11 2 443 to special tool 11 2 446/442 and secure with special tool 11 2 444 using the spark plug thread.

Fig 14: Securing Fitting Of Special Tool 11 2 443 And 11 2 446/442 With Special Tool 11 2 444

Courtesy of BMW OF NORTH AMERICA, INC.

Lift timing chain and hold under tension.

Crank engine from 45° before TDC position in direction of rotation up to TDC position.

CAUTION: Remove special tool 11 5 180 before starting engine.

Secure crankshaft with special tool 11 5 180 in TDC position.

Fig 15: Securing Crankshaft

Courtesy of BMW OF NORTH AMERICA, INC.

Install left camshaft adjustment unit,

refer to 11 36 610 REMOVING AND INSTALLING/REPLACING LEFT CAMSHAFT ADJUSTMENT UNIT (M62 VANOS FROM 9/98) .

Assemble engine.