Read more on the small probe in the exhaust system that makes sure your car's CO2 emissions live up to the european standards.

Every filter, regardless of what it is designed to trap, will have to be cleaned and emptied on a regular basis so that there is space to continue trapping more things. This process of cleaning and emptying a Diesel Particulate Filter is called DPF regeneration.

When Diesel is burned in a combustion engine, much more soot is generated than by petrol-fuelled vehicles.

In 2009, the ‘Euro 5’ standard was introduced, which led to the requirement for manufacturers to fit Diesel Particulate Filters in the exhaust systems of all diesel cars.

Without a catalytic converter, three harmful compounds would be released into the air through the exhaust and could damage the environment and our health.