🎮 How Does Bmw Dpf Regeneration Work

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 BMW - Diesel particluate filter (DPF) regeneration. To enable regeneration of the partuculate filter, regeneration must be requested in the DDE control unit. The regeneration is requested in that the consumed fuel since the last regeneration is set to a maximum value in the DDE control unit. There is no "particulate" sensor but there are a pair of pressure sensors used to measure the differential pressure across the DPF. The differential pressure data is used to determine when a DPF regeneration is needed. I suspect the mechanic is referring to a one of the exhaust differential pressure sensors. The Diesel Particulate Filter needs to be heated to a very high temperature in order to burn off the particles of soot. This can be achieved in one of two ways: active regeneration or passive regeneration. Passive Regeneration. When you drive for a long time at high speeds, the exhaust reaches very high temperatures. Driving at 70mph or above M. MasterE60Blaster Discussion starter. 34 posts · Joined 2012. #1 · Mar 26, 2012. Hi Guys. I've recently done diagnostics at BMW Specialists Garage and they've said that DPF in my E60 may soon come to the end of it's life and regeneration will be neccessary. Currently while driving I don't feel any drop in power or anything like this. An open-end spanner will not work without causing a mar to the sleeve nut. Before installing the new sensor spraying a can of DPF Cleaner into the open hole (the one on the rear) is an excellent move to help the dpf break free. The 1st dpf regen after the sensor change now has to be forced with a tester. To properly clean the Diesel Particulate Filter while driving, you will need to ride. The highway represents an ideal ground for this exercise, but simple roads will do the business. Maintain an engine speed of at least 3,000 rpm. Indeed, the engine’s level of heating is indirectly linked to the heating of the DPF too. 3) Once again, read the hand book for instructions, for example: ‘Drive for 20 minutes at a constant speed of 65mph’. 4) If the DPF is not regenerated at this stage and fills to over 90% or 45 grams, the component will need replacing. This is not covered under warranty. 5) If the coil and engine management light is on with a loss of power 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. the DPF catches the soot in little chambers when the exhaust flows through it.. these DPF cleaners like the one mentioned flow in the same direction as the exhaust. how much does it really clean out? i have heard of people removing the DPF and flushing it out with a pressure washer (no soap) in the reverse direction and having good luck. Whether a DPF (Diesel Particulate Filter) failure is covered under warranty depends on exactly what is stated in the Car owners’ manual. Many Car manufacturers advise that their diesel engine cars are not used for frequent short journeys as this does not allow the diesel particulate filter time to regenerate. Using a diesel car for city During a DPF regeneration the DPF itself and the exhaust get extremely hot, this can result in some unusual smells, especially if the car is new. In order to generate the heat required to burn off the stored soot inside the DPF the car essentially over-fuels and increase the engine RPM at idle, this can cause a temporary change in the driving .

how does bmw dpf regeneration work