I was just wondering if anyone has had the same problem and managed to find the cause of problem,active regenaration is taking place every 300 miles or so.

are you only doing short trips?

No Dave not doing only short trips,just anti pollution filter light on dash has never worked in 8000 miles ,recently had dpf filter replaced and asked auto electrician about the problem but still not working ,just get engine failure light and limp mode if it doesnt regenerate itself,real pain and inconveniant to say the least

Hi did you ever sort the problem out