11 12 106 Removing and installing right cylinder head (N62 from 9/03 and N62TU)

WARNING: This page is about a different car, the 2005 BMW 545i and 2004 BMW 545i. However, it is still accessible from the selected car via links, so may be relevant.

(Cylinder Bank 1 To 4)

NOTE: To remove the exhaust manifolds, the engine must be secured in the installation position with the special tool and then the front axle bracket lowered.

Remove right exhaust manifold.

After Removing Exhaust Manifolds:

Reinstall front axle bracket provisionally and remove special tool for securing engine in installation position.

Open drain plug for coolant on right side of engine block.

Drain off coolant and dispose of correctly.

Installation:

Replace sealing ring.

Tightening torque, refer to of drain plug 11 11 5AZ in ENGINE - TIGHTENING TORQUES - 545I (4.4L) E60 .

Top up coolant. Vent cooling system and check for leaks. Refer to 17 00 039 VENTING COOLING SYSTEM AND CHECKING FOR LEAKS (N62, N62TU) .

Remove ignition coils on cylinder bank 1 to 4.

Remove servomotor for right eccentric shaft. Refer to 11 37 024 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR RIGHT ECCENTRIC SHAFT (N62/N62TU) .

Remove intake air manifold. Refer to 11 61 050 REMOVING AND INSTALLING INTAKE AIR MANIFOLD (N62) .

Remove right cylinder head cover. Refer to 11 12 006 REMOVING AND INSTALLING/SEALING RIGHT CYLINDER HEAD COVER (N62/N62TU) .

Remove right timing case cover. Refer to 11 14 085 REMOVING AND INSTALLING TOP RIGHT TIMING CASE COVER (N62 / N62TU) .

Disconnect plug connections and lay engine wiring harness to one side.

Remove spark plugs on cylinder bank 1 to 4.

Remove vent hose on cylinder head.

NOTE: Illustration with engine removed.

Detach hose (1) on check valve (4).

Release screws (2).

IMPORTANT: A spacer bushing is secured with screw (3) behind tube (5).

Release screw (3) and remove check valve (4), tube (5) and spacer bushing.

Unclip cables (6 and 7).

Installation:

Replace sealing ring on tube (5) and coat with antiseize agent.

Removal:

Removal of cylinder head is described separately from installation.

Remove inlet and exhaust adjustment unit on right side. Refer to 11 36 048 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON RIGHT SIDE (N62/N62TU) .

Fig 1: Identifying Components Of Right Cylinder Head

Courtesy of BMW OF NORTH AMERICA, INC.

Slacken off chain tensioning piston (1) by approx. one turn.

Fig 2: Locating Chain Tensioning Piston

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Illustration with engine removed.

Remove eccentric shaft sensor (2).

Fig 3: View Of Eccentric Shaft Sensor

Courtesy of BMW OF NORTH AMERICA, INC.

Detach guide rail from cylinder head.

Fig 4: Identifying Guide Rail In Cylinder Head

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws between cylinder head and timing case cover.

Fig 5: Locating Screws Between Cylinder Head And Timing Case Cover

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: At narrow points, use a socket with 3/8" drive and a short extension.

Release cylinder-head bolts in sequence 10-1.

Lift off cylinder head.

Lift off cylinder head gasket.

Fig 6: Identifying Removal Sequence Of Cylinder Head Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

Remove chain tensioning piston (1).

Fig 7: Locating Chain Tensioning Piston

Courtesy of BMW OF NORTH AMERICA, INC.

Place chain tensioning piston (1) on a level surface and compress slowly and carefully.

Repeat this procedure twice.

Fig 8: Compressing Chain Tensioning Piston

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Installation of cylinder head is described separately from removal.

Clean sealing faces of cylinder head and crankcase; if necessary, remove gasket debris with wooden scraper. Make sure no gasket debris drops into the oil and coolant ducts.

Threaded bores in engine block must be free of dirt and oil (risk of cracking).

Replace sealing ring.

Install chain tensioning piston (1) and initially tighten screw connection without play.

Fig 9: Identifying Chain Tensioning Piston