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7.2.2 Pop rivet
Opening pop rivets
– Start by making separating cuts where necessary.
– Drill off pop rivet (drill bit diameter 4.5 mm).
– Detach damaged part (use a chisel if necessary).
WARNING
Make sure you catch remnants of pop rivets. Any remnants
which fall into cavities and can no longer be removed must be
bonded in with cavity wax.
Fitting pop rivets
– Match up new parts, position on body and secure in place.
– Place new and old part/backing plate of same material on top
of each other and drill a hole (∅ 2.5 mm).
– Detach new parts.
– Use riveting tool to punch drilled holes in all parts.
Note
♦
Set riveting tool to material thickness for all operations. Punch‐
ing enlarges the diameter to 4.8 mm. Punching must face
inwards in all parts.
♦
Extruded sections cannot be punched. Drill into new part with
extruded section, detach part and enlarge hole in extruded
section to ∅ 4.8 mm.
– Apply adhesive.
– Fit pop rivet and use riveting tool to pull pin out.
Note
♦
All riveted joints have to be bonded when performing repairs
in the workshop (unlike in series production). Refer to section
on bonded joints ⇒ page 31 .
♦
Various pop rivets are available; refer to the Workshop Manual
for the relevant vehicle.
General InformationBody Repairs, General Body Repairs - Edition 04.2018
34 7. Cold joining techniques
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