Installing the rear diffuser

• Version A: 

  Install the diffuser (3) and tighten the nuts (2).

  Tighten the screws along the dotted line (1).

  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Diffuser/undershield
  Nuts and screws	Tightening torque	3 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

• Version B: 

  Feed in and install the diffuser (2).

  Tighten the nuts (1) and screws (arrows).

  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Diffuser/undershield
  Nuts and screws	Tightening torque	3 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

• Version C: 

Insert and install the diffuser (1).

Tighten the screws (arrows).

Courtesy of BMW OF NORTH AMERICA, INC.