Removing and installing/sealing cylinder head cover (S55 engine)

Necessary preliminary work: 

• Remove right TRAILING LINK .
• Release ENGINE WIRE HARNESS in the area of the cylinder head cover.
• Disconnect PRESSURE LINES .
• Remove clean air pipe. Refer to:
  • REMOVING AND INSTALLING/REPLACING FRONT AIR DUCT
  • REMOVING AND INSTALLING/REPLACING INTAKE SILENCER HOUSING, LEFT
  • REMOVING AND INSTALLING/REPLACING INTAKE SILENCER HOUSING
  • REMOVING BOTTOM REAR AIR DUCT
  • REMOVING TOP REAR AIR DUCT

Release screws (1).

Remove the bulkhead panel (2).

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Remove flange (2).

Installation note: 

Replace sealing flange.

Courtesy of BMW OF NORTH AMERICA, INC.

Loosen screws of cylinder head cover from outside inwards in 1/2 turns.

Remove cylinder head cover.

Replace all gaskets.

Fit cylinder head cover.

Insert screws of the cylinder head cover by 1/2 turn.

Tighten fit screws (1) using 8.5 Nm.

Tighten positional screw (2) using 8.5 Nm.

Tighten remaining screws of cylinder head cover in sequence (3 to 26).

Tightening torque: 11 12 3AZ .

Assemble engine.