Once the filter collects enough particles, it goes through a process called “regeneration.” This is when the DPF heats up and burns off the trapped soot particles, turning them into harmless ash. Just like that, your diesel engine runs cleaner and more efficiently, all thanks to your trusty DPF. Symptoms of a Clogged or Malfunctioning DPF DIY vs Professional DPF Regeneration. If you own a VW Golf and are experiencing issues with your Diesel Particulate Filter (DPF), there are two options to consider: DIY regeneration or professional regeneration. A DIY approach involves manually regenerating the filter by driving at high speeds for an extended period, usually on the highway. Burning off the soot is known as regeneration, and it happens in 2 ways. DPF passive regeneration. Passive regeneration was designed to actively burn off the soot during some instances of regular driving. When the exhaust temperature increases to a high enough level (around 500°C), the DPF can cleanly burn off the excess soot in its filter. The stealership replaced the thermostat and 'conjuction' for $1200, and now say they cannot regen the dpf and it needs replacement (they did not obviously drive to induce regen). I haven't driven with my DPF warning for more than 100 miles for sure (before the visit to the stealership). I am wondering if it is worth trying to regen the dpf myself. bxlwW.

how to regen a dpf filter