HI Karl do you use
Redex RADD0016A Professional Diesel Particulate Filter DPF Cleaner Treatment ? if not please tel me witch one you use i have had my xf 3.0 s for 5 weeks and had the red light come on 3times ... took i for a drive and got rid of it . took it back to mike were i got the xf frome and he sorted it out for me.. as i drive it town a lot for now i would like to stop the dpf red light coming on again -----