Hello, I have had a 307 2.0 Hdi (110bhp) for around twelve months and had nothing but trouble with it. Initially the low fuel additive indicator was displaying and the engine management light illuminated. The additive was replaced and the light re-set, however within a day the display message and management light were back on. The garage where I bought it from (and will never buy a car from again) finally decided that the switch at the fuel filler cap which allows the additive into the fuel was stuck open and so they fitted a new switch and re-set the engine management light. All was fine until the day after when the light came back on, and so back to the garage to clear the fault and re-set the light. This escapade carried on for well over a month! Eventually I really could not be arsed keep going to and from the garage and drove the car with engine management light on until last week. In the meantime, a friend of mine who has the Peugeot software checked the car for faults and managed to clear 32 faults that were showing. However, there was one fault that he could not clear and that was to do with the particulate filter. He explained that the filter would probably be blocked solid which makes sense because recently the car wouldn't pull a mugger off my granny as it lacked that much power. I carried on driving for a week after this and the engine management light came on and went off on it's own accord but has recently stayed on permanently. The car is off road now as the MOT was due today and it wasn't worth taking it for test with the engine management light on. I have been told that it is possible to clean out the particulate filter by either keeping the engined revved up constantly until the exhaust is to a certain temperature which is supposed to clear the build up of carbon or it can be removed and washed out similar to an heater matrix. I would appreciate any advise on this?