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Home >> BMW >> 2012 >> 640i 2D Convertible >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Assembly And Cylinder Head - Repair - F12 >> Cylinder Head >> 11 12 040 Removing and installing all ignition coils and injector wells (N55)

11 12 040 Removing and installing all ignition coils and injector wells (N55)

Necessary preliminary tasks: 

Release screws (1).

Tightening torque: 11 12 8AZ .

Fig 1: Identifying Injector Well Screws
G10041644Courtesy of BMW OF NORTH AMERICA, INC.

Check fitting bushes (1) for damage.

Installation note: 

Replace gasket (2).

Fig 2: Identifying Bushes And Gasket
G10041645Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.