i have had a unblock diesel filter message come up on my 307 2.0hdi 02 plate for the last few months. have tried giving car a good run but hasnt helped. so brought a new differential pressure sensor fitted this tonight and went for a test drive but again same message came up. not read the faults today with pp but in past have only had the dpf blocked fault on it. car has done 115000 miles now. would it be worth me taking the filter out and giving it a clean out? looked at the guide on here but that looks to be on the 1.6. is the 2.0p the same? as after a quick look it looks to me as if the dpf is under the car not at front of engine. car not here now as mrs gone to work but plan to spend some time on it tomorrow to sort it out.