A Diesel Particulate Filter (DPF) is a device fitted to the exhaust system of modern diesel vehicles to reduce soot emissions and meet European emission standards.

It does this by trapping soot (Particulate Matter – PM) from the exhaust gasses while letting the gasses flow through the system.

As with any type of filter a Particulate Filter needs to be cleaned regularly to function properly. With DPF’s this is done by a process known as Regeneration which involves a combination of a catalyst function in the system and burning the soot to gas at a very high temperature leaving behind an ash residue within the DPF. Regeneration should be an automatic process taking place in the normal use of your vehicle. You may have noticed this in the form of a blast of white smoke form the exhaust on occasions.

DPFs have been in common use in passenger cars and light commercials from around 2003 in preparation for Euro 4 regs (2005), with Peugeot, Renault and BMW being early takers. Euro 5 (2009) made it compulsory for diesel cars and light commercials to have a DPF fitted and Euro 6 2014 will tighten this up further.

Please contact us regarding DPF solutions so we can make sure we are offering the correct service to you.

DPF cleaning and regeneration.

Along side Full removal of the DPF internals we offer a cleaning and/ or regeneration service.

If the cars dpf is blocked or there is an underlying fault then the car will not complete the regeneration function of its own accord. resulting is a blocked dpf.

The cleaning of the dpf often requires removal. A special DPF cleaner is then added to the internals and left to soak for an extended time period. After the soak has elapsed then it is reinstalled in the car and using the correct diagnostic equipment the cars ecu is then requested to carry out a regeneration as it should do under normal circumstances.

DPF Solutions

EGR Removal


Speed Limiter Removal