Hi Newbie. Since I posted the above (yours), further research showed that the options were to replace the DPF (faulty and causing the oil to fill with diesel), get it cleaned chemically, or remove the filter material in the DPF and put it back on. I plumped for the later with a local specialist garage. They re-programmed the ECU so that it thinks no DPF fitted also. Fantastic - no problems since, fuel consumption back to normal, accelerates quicker, engine is quieter - just a complete success!
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