Halfway back the message turns into 'DPF Malfunction', so I presume this means the automatic regen failed. I call the local Mazda garage, who inspect it (well, probably plug in their code reader and charge £120 for the privilege) and tell me that the Throttle Body needs to be replaced and a manual regen tried, but this - after already leaving Posted November 5, 2009. IIRC when I tried, it would hold the RPM up for three minutes while watching DPF pressure. If pressure was low, it would boot you out. If pressure was high, showing DPF restriction, it would do the regen for about 35 minutes. I tricked it with a hand held pump hooked to the DPF pressure sensor to activate the regen. 5. Next the DPF traps soot. 6. During some truck operations the exhuast is hot enough to burn off soot while driving with no fuel sprayed through the 9th injector, this process is called Passive Regen. Passive regen is happening any time temperature in the DPF is above 800 deg F. 7. Hi all, an oil service is coming up for my 2011 mazda 6 2.2d, i have bought the oil and filter. Rather than mazda dexelia dpf 5w30 oil, i bought Shell helix diesel ultra AF-L much cheaper, and a bluprint oil filter ADS72101. 7.3.4 Manual Stationary DPF Regeneration. To initiate and see the status parameters during DPF regeneration: Select “Diagnostics” from the main “MENU.” Then select “Vehicle” for vehicle diagnostics. Select “Stationary Regen” to begin the manual stationary regeneration process. Read the caution messages by pressing the right 6.5L Diesel Engine Duramax First Generation: 2001-2004 (LB7) Duramax Second Generation: 2004.5-2005 (LLY) 6.2L Diesel Engine Fuel System, Air, Exhaust & Emissions Upgrades Top Contributors this Month View All A non-bluetec OM642 has a DPF of 9 L compared to the 3.2 L of the bluetec OM642 and OM651 has a DPF of 3.9 L. The DPF of the bluetec OM642 has a shorter service life vs the other 2 and the primary factor is DPF size vs the output of soot of the engine. The regen intervals and frequency is also different/effected by the size of the DPF. One user from Polan forum, has this value after the regeneration around 2 g/l, for him cleaning of DPF was a solution. But, right now , my collegue has this number after the regeneration around 0.4 g/l, and still has a halfed regeneration distance - around 120km for mazda 6 and we are searching for a solution Pain in the ass .

mazda 6 dpf regeneration procedure