Some of the most asked questions are about DPF Fault Codes and DPF Fault Code clearing. The Valley Filters DPF cleaning service is available for most makes and models of vehicles in Ireland. If your car is reporting any of the DPF fault codes in the list below, Valley filters can help. If your diesel vehicle isn’t on the list below, we may still be able to clean your DPF. Submit the Quick Inquiry form with your details or phone 042-966-2365 for more help and advice.