Hi dont know if anyone has had this issue before but i have the 2017 1.5 diesel and the rac had to come out to the engine light and said the dpf filter was vlocked they ran a regan and the light stayed on the next day the light was clear and now 4 days later the lights back on and my fuel economy has gone to 31mpg. Any advice is the mpg down to issues with the dpf or the computer working out that the rac did a regen and burned fule