Necessary preliminary work

• Remove ENGINE 
• Remove both cylinder head covers. See LEFT CYLINDER HEAD COVER  and RIGHT CYLINDER HEAD COVER 
• Remove LOWER OIL SUMP SECTION 
• Remove UPPER OIL SUMP SECTION 
• Remove alternator BELT TENSIONER 
• Remove VIBRATION DAMPER 
• Remove COOLANT PUMP 
• Remove ALTERNATOR
• Remove A/C COMPRESSOR
• Remove hub for VIBRATION DAMPER 

Release screws along lines (1).

Remove timing case cover (2) towards front.

Clean sealing surfaces with special tool 11 4 470 .

Fig 1: Identifying Screws Along Lines And Timing Case Cover

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Tightening torque 11 14 1AZ .

Remove jump guard (2).

Fig 2: Identifying Jump Guard And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Clean sealing surfaces with special tool 11 4 470 .

Installation note: 

Preposition all bolts in timing case cover.