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41 00... Repair solution for straight shank/hexagon rivet nut

Protective measures! 

IMPORTANT: To prevent the material from tapering, do not drill out the rivet head.
  1. Carefully spot-drill rivet head with a larger drill bit/countersink
    IMPORTANT: Avoid paint damage
    Fig 1: Drilling Rivet Head Using Larger Drill Bit
    G09850073Courtesy of BMW OF NORTH AMERICA, INC.
  2. Knock rivet head away with a chisel
    Fig 2: Knocking Rivet Head Using Chisel
    G09850074Courtesy of BMW OF NORTH AMERICA, INC.
  3. Punch through rivet shank into cavity, remove if necessary
    Fig 3: Cavity Of Rivet Shank
    G09850075Courtesy of BMW OF NORTH AMERICA, INC.
  4. Clean component, eliminate paint damage if necessary
    Fig 4: Cavity
    G09850076Courtesy of BMW OF NORTH AMERICA, INC.

    If the rivet shank can be removed: 

    IMPORTANT: To avoid corrosion, stop chips/swarf by means of cavity preservation.
    Follow NOTES ON CORROSION PROTECTION .
  5. Preserving cavity
    Fig 5: Preserving Cavity
    G09850041Courtesy of BMW OF NORTH AMERICA, INC.

If the rivet shank cannot be removed: 

WARNING: Danger of injury!
Observe NOTES ON CAVITY FOAM .
IMPORTANT: To avoid corrosion and rattling noises, stop chips/swarf and rivet nut shank with cavity foam.
Remove foam remnants with isohexane (benzine).
Fig 6: Preserving Cavity
G09850041Courtesy of BMW OF NORTH AMERICA, INC.
  1. 5. Stop rivet shank by means of specific foaming
  2. 6. Set rivet nut with hand rivet gun
NOTE: Fit rivet nut as quickly as possibly, ideally before the cavity foam hardens.

Hexagon/straight shank rivet nut (up to thread M8) with hand rivet gun ZS308 

IMPORTANT: Follow manufacturer's operating instructions.
Make sure rivet nut correctly contacts component.
Fig 7: Installing Rivet Nut
G09850042Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: According to the manufacturer, the pictured tool is suitable up to an M8 thread.

Hexagon/straight shank rivet nut (up to thread M12) with hand rivet gun MB512 

IMPORTANT: Follow manufacturer's operating instructions.
Make sure rivet nut correctly contacts component.
Fig 8: Installing Rivet Nut With Hand Rivet Gun
G09850043Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: According to the manufacturer, the pictured tool is suitable up to an M12 thread.