If need be, removing the rear diffuser

Removing the rear diffuser 

• Version 1: 
• Release screws and nuts (1).
• Remove the diffuser.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Version 2: 
• Loosen nuts (1).
• Remove screws (arrows).
• Guide out and remove the diffuser (2) at rear.

Courtesy of BMW OF NORTH AMERICA, INC.