A DPF or Diesel Particulate Filter is an exhaust after-treatment component in a diesel car. It helps trap particulate matter like ash, soot, etc., preventing them from being released into the environment.

Since Euro 5 Exhaust Emissions Legislation was introduced in September 2009, it became mandatory that all diesel cars must come with a DPF.

Working Mechanism of a Car DPF

Do you own a diesel car and wonder how a DPF works?

Your car's exhaust system consists of cellular ceramic honeycomb filters along with channels. These filters are plugged at the DPF’s alternate ends of the DPF. Now, when your car’s exhaust gas, containing soot and ashes, passes through the porous wall-flow filter walls, these filters block those pollutants in a checkerboard-like pattern.

As your car’s exhaust temperature gets higher, these residues heat up and turn into ashes. This process is called regeneration and only happens when you are driving at a speed of 40 mph or higher. This also happens when your car’s engine artificially increases the exhaust temperature every 300 miles.

While the exhaust gas can pass through the filter walls, the soot particles are retained on the layer on top of the channel walls and filter pores.

Now, the ceramic materials of DPF also take care of the thermal stability since they are generally made of silicon carbide, aluminium titanate and cordierite.

Signs Of Faulty A DPF

Do you often go for short trips or are you in constant stop/start traffic? Then you may notice an orange light blinking on your car's dashboard. In such a case, take your vehicle to us to clean the DPF.

Our experts will clear the blockages thoroughly in no time. Precision Turbo Services, is the place to go for comprehensive DPF cleaning Birmingham.

If you have any questions, please do not hesitate to contact us.