Just phoned our dealer and our Fiesta does not have a Dpf.
I would be very surprised if that was the case.
This is a quote from the AA
The exhaust emissions standards for new cars have effectively required fitment of a DPF in the exhaust of diesel cars since 2009 when the 'Euro 5' standard came into force. In fact, many cars registered before 2009 will have had one fitted too in anticipation of the change in standards.