This Subaru came into our Ashington HQ with DPF problems and fault code P1469 stored. Our DPF assessment showed that this was caused by excessive soot accumulation in the DPF. Our further checks revealed that the cause of the excessive soot accumulation was a boost leak. We repaired the boost leak and carried out our 3 stage DPF clean before checking that the DPF system was now functioning correctly.
