Installing the rear diffuser

• Check all detents (arrows) for damage, replace the diffuser (2)  if necessary.
• Attach diffuser (2)  and engage it into the detents (arrows),
• Mount the expanding rivets (1)  ,

  Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work 

• Refer to INSTALLING THE TRIM ON THE RIGHT BUMPER COVER .
• Refer to INSTALLING THE TRIM ON THE LEFT BUMPER COVER .
• Refer to INSTALLING THE REAR LEFT AND RIGHT ATTACHMENT PART .
• Refer to INSTALLING THE COVER FOR THE TOW FITTING .
• Refer to INSTALLING THE REAR BUMPER COVER .
• Refer to INSTALLING THE TAIL LIGHT ON THE LEFT AND RIGHT SIDE PANELS .
• Refer to INSTALLING THE TRIM IN THE WATER CHANNEL ON THE LEFT AND RIGHT .
• Refer to INSTALLING THE LUGGAGE COMPARTMENT WHEEL ARCH TRIM PANEL ON THE LEFT AND RIGHT .
• Refer to INSTALLING LOADING EDGE TRIM .
• Refer to INSTALLING LUGGAGE COMPARTMENT FLOOR COVERING .