I do not understand ??? :) :) :)

friends some of them in the 307s have a petrol filter some don't have a dilo I don't understand if there is a petrol filter where or what to do, we will filter without our filter: D

The easiest method is to enter the Peugeot Service Box and look with your chassis number. For example, when I enter, the title appears unfiltered. I think if it had a filter it would have been shown there. Though unfiltered so not wrong, unfiltered. Compared to other cars only, our vehicles have a gas-like filter mechanism mounted inside the gas pump, rather than a separate gasoline filter. It is not necessary to change it.