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A DPF filter (Diesel Particulate Filter) is installed in your car to trap diesel particulate matter, also known as soot, in the exhaust system. This prevents your exhaust from polluting black fumes into the atmosphere. If there is black smoke leaving your exhaust pipe, this is an obvious indicator that your DPF filter is not working properly. Like any filter, your DPF will, over time, start to form a blockage from the waste that it holds and will need to be cleaned.
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