FAP Particle Filter



FAP Particle Filter

The FAP particle filter is technology pioneered by Peugeot to reduce particle emissions from diesel engines to barely measureable levels. It is fitted to all our HDi passenger cars as well as the Expert Professional commercial vehicle.

The first phase of the FAP particle filter involves catching the soot particles in a porous, silicon carbide filter.

The second step, eliminating the soot particles, takes place in the regeneration phase. This periodic operation (after several hundred kilometres) is automatic and transparent to the driver. It simply consists of burning the soot particles that have accumulated in the filter at a very high temperature. The sequential regeneration takes place on account of the combined action of:

- the common rail system, which carries out a post-injection of fuel that helps increase the temperature of the exhaust to the combustion temperature for soot particles.

- the additive that is automatically put in very small doses into the fuel tank, which brings the temperature to 450°C as required for burning off the soot. This unique FAP additive technique ensures Peugeot vehicles eradicate particles in a reliable manner over time.