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Is It Illegal To Remove a DPF In The UK?

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Diesel Particulate Filters (DPFs) have been required in diesel engines since 2009, and it is prohibited to remove them under certain conditions. DPFs are intended to capture dangerous particulate matter (PM) emissions produced by diesel engines, and hence serve an essential role in decreasing air pollution. In this blog article, we will go through how DPF removal is done and under what conditions it is permitted in the UK.

DPF removal entails physically removing the filter from the exhaust system of the vehicle as well as reprogramming the engine control unit (ECU) to deactivate the filter renewal process. This procedure is often carried out by professional garages and might cost between £300 and £500.

In most cases, removing a DPF is prohibited in the United Kingdom. According to the Road Vehicles (Construction and Use) Regulations of 1986, “no person shall use, or cause or authorise to be used, on a road, a motor vehicle that has been changed in such a way that it no longer conforms with the air pollutant emissions requirements that it was built to satisfy.” This implies that removing a DPF from a car that was initially fitted with one is prohibited.

However, in some cases, DPF removal is legal in the UK. Off-road driving is one example. It is allowed to remove the DPF from a vehicle that is solely used off-road and never driven on public roads. This is because road vehicle laws do not apply to vehicles that are not used on public roads.

It is also permitted to remove a DPF if the vehicle is being utilised for racing. Motorsports cars are exempt from some road vehicle restrictions, including the necessity for a DPF.

To summarise, it is unlawful in most cases in the UK to remove a DPF. There are, however, some exceptions, such as off-road use and motorsports. To prevent legal complications and to ensure that the vehicle is safe to operate, it is critical that any modifications made to it conform with the necessary rules.