PSA/Peugeot-Citroen has developed a new particulate filter that it hopes will give it a key competitive advantage in environmentally conscious Germany and elsewhere in Europe.
The anti-pollution device, which reduces soot particulates emitted by diesel engines, will last a car's lifetime, as opposed to 120,000km for its predecessor, the French company said.
The new filter will be introduced starting in early 2004 on four PSA engines of 1.6-liter upwards producing at least 100hp.
European carmakers have been increasing their research and development efforts on particulate filters ahead of new EU anti-pollution laws that will take effect in 2005 and 2008.
Diesel-engine cars in April accounted for 42 percent of European new-car sales and are set to rise further.