Fiat 500 Period NDFLR Condenser Ignition Distributor
Fiat 500 Epoca NDFL Distributor Capacitor.
The capacitor has the function of accumulating and discharging voltage in the time span from one burst to the next.
Mechanically inside it is formed by two highly conductive masses separated by a very thin layer of insulation, the thinner this layer is the more it accumulates energy, but at the same time the thinner it is the more the insulation is subject to breaking by going to ground and making it unusable, imagine that each engine revolution accumulates and discharges twice.
Often its breakdown also depends on tampering with the electrical system.
The replacement is quite simple, you just need to open the hood, get a 8 and a flat screwdriver and you're done.
It's always a good idea to have a couple in your glove compartment, both for yourself and your companions, especially at gatherings.