Fuel Filter: Description and Operation

Fuel Filter Cross-section:

The fuel filter prevents impurities in the fuel from getting any further. The fuel filter housing is made of metal. It is fitted into the fuel circuit after the fuel pump. The filter contains a paper insert with a medium pore size of 10 micrometers, backed up by a strainer which retains any loose paper particles. A support plate holds the filter in place. The directional arrow indicates proper installation. The service life depends on the amount of dirt in the fuel and, individual driving habits. Maintenance requirements vary by model.