We recently had in a Volvo C30 with a catalog of DPF faults P2002, P242F, P224B, P2452 and P2459.
After our initial assessment and test, we concluded that the DPF pressure Sensor was at fault. Once remedied we then confirmed that the DPF was still too blocked to regenerate so we carried out our three-stage clean.
Once cleaned we then road tested and carried out all relevant software resets.
If you are having problems with your DPF call us or message us and we will do our utmost to help.