Regeneration in the "new and improved" trucks can take from 25 minutes to 50 minutes, so plan accordingly. All that extreme heat from the burn-outs tore a hole in my exhaust pipe not to mention extra heat causing damage to engine components like starters, turbos, wiring to the computers which can totally mess up your day if you have more than 7 The thermostat: When the thermostat breaks, the engine cannot reach the optimal temperature needed for the activation of DPF regeneration. The lambda sensor is part of the emissions system. Its damage directly affects the results of regeneration. DPF sensors: The diesel particulate filter consists of various sensors that track its performance. Some garages can clean blocked DPFs, in a process called forced regeneration. This usually costs around £100 and, while it’s not a 100% guaranteed fix, it’s usually successful in removing the excess soot and allowing the DPF to work and automatically regenerate again. Normally if everything is working fine, your car does the regeneration by itself. This normally happens when the car is at higher speeds for a decent amount of time. This is passive regeneration and it lasts around 30 to 50 minutes. On the other hand, active regeneration happens when the system automatically adds extra fuel to increase the The Lindemann Diesel Boost, for example, is a perfect cleaning and protection additive for the DPF, but also for other parts such as the fuel system, the turbo and the EGR valve. This product increases the cetane number, which results in a more optimal combustion. The result is considerably less soot formation. I bought a new Vauxhall Corsa in November 2012, 2 days after having the car and only driving about 10miles the DPF light came on. Most of my journeys are short, say nine miles, clear roads, but I do longer motorway driving three days a week. My problem is that the light now comes on every second day. You cannot “force” regenerate the dpf with a Carly or other device, you can only send a regeneration “request”. If there is a fault preventing regeneration, it still won’t. Also, our 335d was showing all 6 glow plugs and controller as failed but the dpf was still regenerating normally, we ran it like this for 4 months through summer In simple terms, the DPF is a huge screen that traps the soot coming from the engine. This filter looks like a rocket shell underneath newer trucks. The DPF has temperature sensors and pressure tubes used by the PCM to help in determining when the DPF screen is full. When the DPF needs cleaning it undergoes what is called “regeneration.” .

how does bmw dpf regeneration work