on way to work today i had unblock diesel filter come up and engine light came on it went off after about 3 mins. question is surely it cant be blocked can it? i do 50 miles a day for work 25 miles each way on an A road that allows a good run with a few slow downs for roundabouts. i had the fluid filled up about 10,000 miles ago at a Peugeot dealer so that shouldbe the issue so why am i getting this?? should i be giving more motorway miles?