DPF Filters

Introduction to Diesel Particulate Filters (DPF)

Diesel Particulate Filter Diesel particulate filters have been used by some vehicle manufacturers for several years now, but only since about 2009 has it been mandatory for all vehicles to be fitted with them to help achieve strict new Euro 4, 5 and 6 emissions.

These filters can often be confused with catalytic converters or silencer boxes since they look similar and are usually incorporated as part of the exhaust front pipe near to the engine.

Their purpose is to trap diesel particulate matter, or soot, as it’s often referred to. All diesel engines smoke under hard acceleration, especially when cold, due to the entire diesel not being burnt. Even with the major advances in high pressure common rail diesel systems not all of the diesel combusts and this can be seen as black smoke coming from the vehicles tailpipe where a DPF isn’t used. If you observe a diesel vehicle that’s accelerating and there isn’t any smoke being emitted it’s more than likely fitted with a DPF.

Sooner or later, depending mainly on driving style or conditions, these filters become restricted or blocked but vehicle manufacturers have taken steps to help prevent this from happening. Periodically these filters need to be cleaned or emptied but without removing them from the vehicle, this process is often referred to as DPF Regeneration.

The engine management system monitors the DPF’S soot fill percentage  and decides when regeneration is necessary. As well as monitoring the DPF’S back pressure to detect a partially blocked filter, some ECU’s are programmed to carry out regeneration based on mileage covered or hours driven.

LPG Audi A8 | Necam | Diesel Tuning Bolton | Stag | uklpg Approved Installer | LPG Volvo | LPG Mercedes | LPG Landrover | r LPG Subaru | LPG Honda CRV | Ford LPG problems | LPG Subaru Impreza WRX | Research Development | LPG Porsche | LPG BMW | OMVL | Emissions | LPG Nissan Almera | Diesel Performance Bolton | LPG Nissan | LPG Vauxhall | LPG Mercedes 230 | Romano | LPG Vauxhall Vectra | LPG Installation | Rolling Road Bolton | Bolton Diesel Specialists | LPG Diahatsu | Metatron | Zavoli | LPG Diahatsu Terius | LPG tank | DPF Removal | LPG Toyota Estima Aeras | LPG Toyota Landcruiser Amazon | LPG Vauxhall Zafira | DPF regenration | DPF problems | Blocked DPF | LPG P38 Range Rover | LPG conversion | LPG Jaguar X Type | LPG Volvo V70 | LPG Mercedes C180 | LPG Landrover Discovery 3 | Ford LPG | LPG Range Rove | LPG Honda | Diesel Performance | Nitrous Oxide | Diesel Tuning Boxes | Select-A-Map | Nitrous Diesel | Rolling Road | LPG Honda Jazz | Bolton LPG | LPG Porsche 911 | Koltec | LPG ECU | LPG Subaru Legacy Type R | Bolton Car Servicing | Bolton Diesel | DPF | Evolution Chips | Factory Fitted Systems | Range Rover LPG | LPG switch | AEB | DPF Delete | diesel remap | LPG Petrol | Bolton | Fueler | BRC | remapping | Prins | LPG reducer | Nos | Dyno | LPG Filling Stations | Ford Service | LPG Subaru Impreza | Landi Renzo | Diahatsu Terius LPG | LPG Toyota | LPG Vauxhall Insignia | LPG filler | LPG Jeep Cherokee | Superchips | AG | LPG Vauxhall Corsa | Fuel Savings | LPG BMW X3 | Nitrous Petrol | Icon | LPG Jaguar | North West | LPG Injectors | LPG Subaru Forester | Vialle