Diesel Particulate Filter

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Also called soot trap and FAP. This device catches small soot particles (PM10 and PM2.5) in order to properly dispose it later during a regeneration procedure.

DPF Regeneration

Automatic regeneration

While driving. In most cases driver even didn't know that it took place.

Forced regeneration

Forcing ECU with diagnostic tool or hidden procedure to force DPF regeneration.

Manual emptying

Removing the DPF from the car to clean it manually.



ECU changes fuel/air ratio in order to reach higher EGT.


Uses additive like Eolys to increase exhaust gases temperature and bring down in order to efficient disposal of the gathered soot.

Removing / disabling DPF

Check also