How does a DPF clean itself?
How does a DPF clean itself? The soot particles attach themselves to the lining of the DPF while the engine is running. At the same time, the filter is slowly clogging with the very particulates that it's designed to remove from the exhaust. This process of cleaning the DPF is done through a process called regeneration. How do you know if you need to clean your DPF? Check the dash panel for a small, yellow or orange rectangular warning symbol with circles in the center. This symbol shows that the DPF soot has built up to a possibly damaging level....