What is a DPF?
A device fitted to the exhaust of a diesel powered car, light commercial or truck designed to catch the Diesel Particulate (soot) hence the name Diesel Particulate Filter (DPF).
Using a ceramic core (also called a substrate) to actually filter the soot and ash from the exhaust gas.
These particles remain trapped in the DPF for the life of the DPF.
They are usually found only on “Common Rail” engines both car and truck.
What do they look like?
They tend to look similar to an automotive or truck muffler or catalytic converter an before the muffler.
Later DPFs designs often have the cat combined into the same housing.
They usually have a number of hoses, pipes and electrical wires connected to them
Where are they fitted?
Generally located after the turbo and cat but before the mufflers.
Later, DPF tended to be mounted up in the engine bay of cars and light commercials so as to be closer to the heat source of the engine and so offer improved combustion properties.
How do I know if I have one ? – Difficult to tell without some research;
- Check the owner’s handbook for clues.
- Look under the vehicle for a DPF.
- Check with your local dealer or mechanic regarding your model.
- Generally all French cars from 2001 on
- Most other European cars for 2006 on
- Some Japanese cars from 2006 on, such as Nissan Navara’s (automatics only as manuals didn’t have them), X-Trails 2006, Mazda 3’s & 6’S 2006, Subarus from 2009, Misubishi Pajero’s 2006, Hyundai and Kia from 2006.
- Toyota Hilux, Fortuna and Prado 2015 Isuzu D-Max and Mux from 2017
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