Just attach the tool to the DLC and access the module's function to clean the DPF. Some tools will have a built-in step-by-step process, or just a simple "yes" or "no" function. However you handle it, make sure to always look up the information about the DPF regeneration mode in the vehicle's service manual before you start. Built from ceramic materials, the DPF is designed like an ordinary catalytic converter and uses the same honeycomb structure. To ensure that the DPF system doesn't clog and cause performance problems, the 6.7 Cummins burns the collected soot into harmless ash through regeneration. The DPF regenerates in two automatic cycles; passive and active. In the DPF module check for soot levels. The regen should be activated around 25grams of soot +/- automatically. The ecu uses a pressure differential sensors in the DPF to calculate the load/pressure infront and behind the dpf filter. You can check those in the live data measurement. You just need to add the parameters you wish to view. Because the DPF is under the car, not 'close coupled' in the exhaust manifold, the car needs to be driven quite a long way (50 miles) at 2000 - 2500 rpm to get the DPF hot enough to promote a passive regeneration. An active regeneration will happen automatically, but if the DPF is too stuffed up with soot for this to work, the post-injected Try to keep the car happy and the emissions system in a happy passive state, in this state fuel economy is best, and less fuel is needed to dose the dpf. keeps the soot levels low. (best) Active: when the car is doing a lot of city driving and has not had the opportunity to do a regen naturally. It will dump excess fuel to dose the dpf. The car suffers from too-frequent DPF regeneration cycles, probably every 50 - 100 miles, at worst it was only 8 miles between regens. I can confirm that the regen cycles are being performed successfully (exhaust gas temp before DPF goes from 300C to 600C for 10min, then returns to 300C) and they are competing successfully (distance counter 4. Check diesel particulate filter (visually check whether the exhaust tailpipe and diesel particulate filter outlet are covered with soot). 5. Perform regeneration. Only possible when driving at constant speed for at least 30 min. (In connection with this fault, regeneration cannot be initiated with the corresponding service function). 6. Add 1 x JLM DPF Cleaner to prepare the DPF for optimal regeneration (recommended). 7. Start a regeneration cycle via the on-board computer, following the VM guidelines. Reset any warning signals related to the DPF. Alternatively, drive the vehicle for approx. 20 minutes at suitable speed/RPM to initiate a regeneration cycle. When your vehicles dpf becomes so blocked that Active or Passive regeneration is determined by the pressure differential readings that the level is to high to attempt regeneration the ecu will displays DPF warning lights and it will go in to ‘limp mode and it is essential that the vehicle is brought to us. Continued driving will only increase Isd2.

how does bmw dpf regeneration work