DPF Solution
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If regeneration doesn’t function properly it leads to a build-up of soot affecting performance and fuel economy, left unattended this will result in a Blocked DPF which can ultimately cause very expensive damage to other engine components. A blocked DPF is also potentially dangerous as it can cause overheating in the exhaust system and cause a fire risk. To prevent this damage most new vehicles will go into “Limp Home” safety mode at this stage, meaning the vehicle will have minimum power barely sufficient to crawl home.
For regeneration to take place it requires the vehicle to be driven regularly at some speed on open roads e.g. motorway driving, typically driving at around 2500 RPM for approx. 15-30mins at least once a month, this will keep things working.
Many diesel vehicles are used primarily for short journeys, rarely getting up to the full operating temperature that a regen needs; and over time a DPF will suffer from an accumulation of ash residue whether it has been correctly regenerating or not. Even if the regeneration functions as it should, over time the ash residue will build up in the DPF and have the same affect ultimately resulting in a blocked DPF. For this reason a DPF is classified as a Serviceable Item by the vehicle manufacturers like brake pads or air filters etc and not covered under warranty. DPF systems therefore need to be maintained properly.
DPF removal is legal in certain countries and when used for off-road or motorsport – if in any doubt please take advice
