What is a DPF (diesel particulate filter)?
A DPF (diesel particulate filter) is a filter that sits in a diesel car's exhaust system. It extracts particulates – mainly the nasty black soot you see coming from older diesel cars' exhausts – to stop them from getting into the atmosphere. Every so often, the DPF will 'regenerate', deliberately heating up to burn the captured particulates off. Some drivers have encountered problems because they don't cover enough long journeys to let the DPF regen take place, causing it to clog.
All modern diesel cars have a DPF and, if you don’t use the car properly, it can cause expensive problems. Read our guide explaining how to avoid DPF issues
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Related glossary terms
