I believe that the Selective Catalytic Reduction (SCR) system that uses Diesel Exhaust Fluid (DEF) and employs the NOx sensors to control the operation of the system is separate from the Diesel Particulate Filter (DPF) system that uses the regeneration process to burn out accumulated soot particles and employs the differential pressure sensor to control the system. Find your fuel port, then follow your cleaning kit’s directions for attaching the hose and port. 6. Remove the fuel tank cap. This will prevent an excessive build up of pressure. 7. Turn on your car engine. Start your car and wait for the cleaning solution to be used up (typically 5-10 minutes). 8. Ash buildup can damage your filter and reduce its lifespan. Don’t fail to schedule cleanings or adhere to the recommended maintenance schedule. It’s important to clean the DPF. The longer you go without performing the cleaning, the more difficult it becomes to remove the soot and ash. Clean regularly, and you’ll get the maximum useful Part One in a series where I show you how to take out your Cummins DPF filter, clean and reinstall. DPF regen steps below apply to Mercedes Star Diagnostic C3 and C4 scanners. Connect your scanner to the diagnostic port under the dashboard. Start the engine and let it idle in Park. Power up the scanner and select the Mercedes-Benz model. Select Control Units. 13638 posts · Joined 2006. #2 · Feb 5, 2011. The truck will sense a full DPF filter, and initiate a self clean cycle. You have to drive it to clean it. IF by chance it gets full, by you not letting it complete the cleaing cycle, you will have to take it in for service. Audentes Fortuna Juvat. Aqueous cleaning machines, on the other hand, use water and proprietary surfactants to clean filters without the need for long bake cycles. The low-pressure, high-volume water system in the Filtertherm® Aqueous DPF Cleaning Machine is effective at removing soot and other contaminants, making it ideal for cleaning a variety of shapes and sizes. The burn-out is similar to what the new diesel pickups do on “regen.” The DPF filter is again flow-tested. This procedure takes about two days and costs around $400. The Chevrolet/GMC filters have to be cut open to access the filter. The Ford and Ram don’t. Cutting open and re-welding the GM DPF adds around $400 to the cleaning costs Some garages claim removing a vehicle’s diesel particulate filter will improve its performance and make it more economical to run. 2. Cost. Some garages also claim that removing the particulate filter is cheaper than replacing an old blocked up filter with a new one. However, it’s illegal to drive a vehicle that’s been modified in that way. Removing the filter is not illegal, but driving a car without a DPF is an offence and particle emissions from the exhaust pipe are likely to soar fivefold as a result. Cleaning the DPF is kFDjqlF.