BOSH condenser for vintage Fiat 500 126
BOSH Fiat 500 Epoca NDFL Distributor Condenser.
The capacitor has the function of accumulating and discharging voltage in the time span from one burst to the next.
Mechanically, inside it is made up of two highly conductive masses separated by a very thin layer of insulation. The thinner this layer is, the more energy it accumulates, but at the same time, the thinner it is, the more the insulation is subject to breaking, going to ground and rendering it unusable. Imagine that every engine revolution accumulates and discharges twice.
Often its breakdown is also due to tampering with the electrical system.
The replacement is quite simple, you just need to open the hood, get an 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.