Have you checked the following?
• Checked your vehicle history for any existing or previous owner issues.
• Confirmed the reason for the apparent DPF failure (e.g. engine issues, injector timing, DPF pressure or flow, air leak, EGR, heater or glow plug, turbo engine wear)
• Inspect inter-cooler & associated plumbing for leaks or wear.
• Replaced the engine oil and filter, use low ash factory oil only.
• Check the used oil for any sign of contamination (thinning due to over fueling/large clumps of carbon)
• Check the fuel for any signs of contamination (e.g. water, bio-fuel or solids. Ensure low sulphur fuel only is being used)
• Ensure NO BIO-FUEL has been used.
• Check catalytic converter efficiency, are there any signs of damage, heat discolouration or pitting of the substrate.
• Replaced all pressure and temperature sensors on the DPF.
• Purchase a new DPF fitment kit including gaskets, bolts and mountings.
• Ensured that no exhaust paste or silicone sealant is being used upstream of the DPF or Catalytic Converter.
• Re initialize Engine Control Units, reset ash level & adaptations and where necessary complete Engine Control Module restore.
• Check for vehicle Engine Control Module programming updates.
• Check Adblue or Eolys (if applicable) at sufficient level.
• Completed a successful Forced Regeneration before driving the vehicle.
Please note this is only a guide and each vehicle present their own different faults and procedures, you must be competent and have the correct technical back up or you must take the product to a professional installer. Failure to follow the directions above will result in the dpf warranty becoming void! For further help, contact us.