Have a 64 reg 184 FR and the a DPF warning came up last week. Did a 15/20 minute drive at 3500/4000rpm on the motorway to try clear it it, no change though. Plugged in the carista and got this error back - P2458 – Diesel Particulate Filter Regeneration Duration Connected the play store VAG DPF app and got these results, but I'm not really sure what I'm looking at. Was quoted by some companies for 199£ for a full clean. Is that what this needs most likely Any opinions are appreciated!