Replace the right cylinder head cover

• Loosen screws (1)  .
• Remove the sealing cap (2)  .
• Replace O-ring (3)  .

  Parts:  O-ring

• Position the sealing cap (2)  .
• Tighten down screws (1) 
  TIGHTENING TORQUES SPECIFICATION
  
  

  Sealing cap on cylinder head cover
  M6x25 screw	tightening torque	10 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

• Remount clamps (1)  on the cylinder head cover (2)  .
• Loosen screws (2)  .
• Remove camshaft position sensors (1)  .

Courtesy of BMW OF NORTH AMERICA, INC.

Courtesy of BMW OF NORTH AMERICA, INC.

Check 

• Check O-rings (1)  on the camshaft position sensors for damage.

Courtesy of BMW OF NORTH AMERICA, INC.

Result 

» O-ring (1)  damaged

Measure

• Replace O-ring (1)  .

  Parts:  O-ring

Result

» O-ring (1)  not damaged.

Measure

• Continue the repair in the next step.

• Coat O-ring of camshaft position sensor with engine oil.
• Position camshaft position sensors (1)  .
• Tighten down screws (2)  .
  TIGHTENING TORQUES SPECIFICATION
  
  

  Camshaft position sensor to cylinder head cover
  Torx screw M6	Tightening torque	8 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

• Version A: 

  Loosen screws (1)  .

• Version A: 

  Remove liquid-vapor separator (2)  .

• Version A: 

  Position the liquid-vapor separator (2)  .

• Version A: 

  Tighten down screws (1) 

  Courtesy of BMW OF NORTH AMERICA, INC.

  TIGHTENING TORQUES SPECIFICATION
  
  

  Oil separator to cylinder head cover
  M6 screw	tightening torque	10 Nm

• Version B: 

  Loosen screws (1)  .

• Version B: 

  Remove liquid-vapor separator (2)  .

• Version B: 

  Position the liquid-vapor separator (2)  .

• Version B: 

  Tighten down screws (1) 

Courtesy of BMW OF NORTH AMERICA, INC.