What is a DPF?

A diesel particulate filter (DPF) is a component in the vehicles exhaust system that captures and stores exhaust soot, in order to reduce emissions from diesel cars. But because they only have a limited capacity, this trapped soot periodically needs to be emptied or 'burned off' to regenerate the DPF.

This regeneration process cleanly burns off the excess soot deposited in the filter, reducing the harmful exhaust emission and helps to prevent the tell-tale black smoke you used to see from diesel vehicles, particularly when accelerating.

DPF Dashboard warning

Euro 5 exhaust emissions legislation introduced in 2009 to help lower car CO2 emissions effectively made DPFs mandatory, and since then, around a half of new cars a year have been diesel-powered.

There are usually two reasons a DPF will block:

  • There is an engine fault, such as a defective exhaust gas recirculation valve (EGR)
  • The vehicle only does short journeys and the vehicle cannot get hot enough for a certain length of time for the onboard regeneration to take place.
Engine Spare Parts

Your Options

When the vehicle regeneration system or a technician forced regeneration fail, the only sure way to unblock the DPF is to remove it from the vehicle and have it cleaned by our patented process. This effectively restores the filter to up to 98% of its original efficiency. Only this process removes the ash as well as the soot.

Should I Use DPF Cleaning Fluids?

Some garages recommend aerosols and other additives than are either added to the fuel, inlet or exhaust system. Our experience has shown that these are rarely effective as it cannot remove the ash. These treatments can be very expensive with little effect.

Should I replace my DPF?

On some vehicles, the core of the DPF can distort or melt. This is very rare and the unit will need replacing. We can offer very competitive quotes for the supply of new units.

Can I Force DPF Regeneration?

Some vehicles can be successfully force regenerated by a technician if the filter is only slightly blocked. A continued vehicle fault will usually mean that the soot and ash build up will require professional removal.

DPF Cleaning machine

Our Process

Initially, the unit is inspected externally and internally with a camera to assess its condition.  Flow and back pressure are then measured prior to cleaning. Using extreme water pressure, the DPF is flushed of all debris, soot, ash and additives. This combined with an environmentally friendly, bio-degradable detergent ensures that not only is your DPF thoroughly cleaned, but the waste is also properly recycled.  After cleaning the unit is thoroughly dried with hot air.  Afterwards, the flow and back pressure is measured again, you will then be given a certificate with the before and after figures.

After DPF Regeneration

Once the DPF has been refitted to the vehicle, the vehicle may require a ‘plug in’ to reset some of the information stored in the vehicle’s computer. This will tell the vehicle that a new DPF has been fitted so that the engine runs correctly.

DPF cleaning machine

Contact us today to discuss your requirements

01536 485584