The diesel particulate filter is a component that removes particles from the exhaust gases of a car engine. These particles usually consist of soot and metal oxides.
It is possible to drive without a diesel particulate filter, but over time this will lead to many problems. For example, the car will emit more pollutants and will also consume more fuel than normal.
If a diesel particulate filter becomes clogged, the engine management light may come on. This can also lead to higher fuel consumption and reduced engine performance.