BUYERS BEWARE Citroen are selling some of their diesel cars that are manufactured to include a FAP exhaust filter system. Cars with this system will give approx 10% less MPG especially when used on shorter journeys. Worse still is that when the car reaches a certain milage, Citroen will charge you up to £700 to have this system serviced. YOU HAVE BEEN WARNED Before buying, new or used, always check that your intended purchase does not have a FAP filter fitted. read full review »