41 00... Repair Solution For Straight Shank/Hexagon Rivet Nut: Notes

WARNING: This page is about a different variant/trim than selected.

Protective measures!

Wear safety goggles
Wear protective gloves

IMPORTANT: To prevent the material from tapering, do not drill out the rivet head.

Carefully spot-drill rivet head with a larger drill bit/countersink

Fig 1: Drilling Out Rivet Head
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IMPORTANT: Avoid paint damage
Knock rivet head away with a chisel

Fig 2: Identifying Rivet Head And Chisel
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Punch through rivet shank into cavity, remove if necessary

Fig 3: Identifying Rivet Shank In Cavity
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Clean component, eliminate paint damage if necessary

Fig 4: Eliminate Paint Damage
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If the rivet shank can be removed:

IMPORTANT: To avoid corrosion, stop chips/swarf by means of cavity preservation.
Follow NOTES ON CORROSION PROTECTION .
Preserving cavity

Fig 5: Preserving Cavity
Courtesy 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

Courtesy of BMW OF NORTH AMERICA, INC.

5. Stop rivet shank by means of specific foaming
6. Set rivet nut with hand rivet gun

NOTE: Fit rivet nut as quickly as possibly, ideally before the cavity foam hardens.