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Home >> BMW >> 2017 >> 640i 2D Convertible >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Assembly And Cylinder Head - Repair - F12 >> Cylinder Head >> 11 12 005 Removing and installing/sealing left cylinder head cover (S63T 0)

11 12 005 Removing and installing/sealing left cylinder head cover (S63T 0)

Special tools required: 

Necessary preliminary tasks: 

Release screws (1).

Remove holder (2).

Tightening torque: 11 12 4AZ .

Fig 1: Identifying Screws And Holder
G10041744Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Remove heat shield (2).

Tightening torque: 11 65 4AZ .

Fig 2: Identifying Heat Shield And Screws
G10041745Courtesy of BMW OF NORTH AMERICA, INC.

Release screw connection in sequence (16 to 1).

Remove cylinder head cover.

Fig 3: Identifying Screw Connection Of Cylinder Head Cover
G10041746Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 4: Identifying Sealing Surface
G10041747Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Renew profile seals (1 and 2) of cylinder head cover.

Fig 5: Identifying Profile Seals
G10041748Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

It is important to join screw (15 and 16) for exact positioning of the camshaft sensors.

Mount cylinder head covers.

Position screw (15 and 16).

Release screws again by a 90° turn.

Secure cylinder head cover in sequence (1 to 17) in two work steps.

Tightening torque 11 12 3AZ .

Fig 6: Left Cylinder Head Cover Bolts Tightening/Loosening Sequence (S63T O)
G10041749Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.