Diesel particulate filter
Our advanced diesel engines are much cleaner than older engines. Their diesel particulate filters (DPF) are very effective in cutting emissions, trapping even the finest soot particles produced as the engine burns diesel fuel. The result is a cleaner environment as less pollution enters the atmosphere. The latest generation of filters operate without additives. This makes them maintenance-free for a long time: an initial inspection is not usually carried out until after 90,000 miles. Their lifespan is dependent on factors such as fuel quality, driving style, use and oil consumption. The filter uses a catalytic coating containing precious metals. Passive regeneration converts the particulate matter contained in the catalytic converter into CO2. This process takes place at temperatures between 350 and 500°C and can run continuously, particularly if you drive your car mainly on long runs.
Please refer to your Volkswagen Owner's manual for official guidance on use and operation of all our technology.