I have recently experienced major problems with my XF displaying a restricted performance mode and DSC failure with subsequently issues with the DPF and ECU! I do a lot of short journeys interspersed with occasional long trips and have experienced lots of problems with the diesel particulate filter clogging up. This has resulted in three service visits in less than 7500 miles. After the most recent problem the dealer found no faults logged in the IDS! I have also had a frightening experience of the car suddenly accelerating for no reason, then switching itself off and reporting a host of problems on the info screen. Again the IDS logged no such faults! Am I alone in experiencing such unreliable and potentially dangerous problems?