11 12 005 Removing and installing/sealing left cylinder head cover (N74)

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Necessary preliminary tasks:

Remove ACOUSTIC COVER
Clamp off battery NEGATIVE TERMINAL
Remove left INTERCOOLER
Remove INTAKE AIR MANIFOLD
REMOVE IGNITION COILS on right
Remove FUEL RAIL
Detach wiring harness for injectors and lay to one side
Remove H.P. PUMP .

Release bolts in sequence (24 to 1).

Remove cylinder head cover.

Fig 1: Cylinder Head Cover Bolts Tightening/Loosening Sequence

G08469129

Courtesy of BMW OF NORTH AMERICA, INC.

Clean sealing surface (1) with special tool 11 4 470 .

Installation:

Replace seal (2) .

NOTE: Graphics show N63.

Fig 2: Identifying Cylinder Head Cover Sealing Surface And Seal

G06178390

Courtesy of BMW OF NORTH AMERICA, INC.

Apply thin coating of DREI BOND 1209 sealing on left and right contact points on gear case cover.

Fig 3: Locating Drei Bond Applying Location

G08469131

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Replace profile seal (1) on cylinder head cover .

Fig 4: Identifying Cylinder Head Cover Profile Seal

G08469132

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

It is important to join screw (1) for exact positioning of the camshaft sensors.

Fit cylinder head cover.

Position screw (1).

Release screw (1) by 90°.

NOTE: Graphics show N63.

Fig 5: Identifying Cylinder Head Cover Screw

G06178392

Courtesy of BMW OF NORTH AMERICA, INC.

Secure cylinder head cover in sequence (1 to 24) in two work steps.

Tightening torque: see 3AZ in 11 12 CYLINDER HEAD WITH CYLINDER HEAD COVER

Fig 6: Cylinder Head Cover Bolts Tightening/Loosening Sequence

G08469129

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Installation:

Change over all sensors when replacing cylinder head cover.