particle filter

Dear Sir
Welcome, and thank you for trusting us
diesel particulate filter (DPF) is a filter that captures and stores exhaust soot (some refer to them as soot traps) in order to reduce emissions from diesel cars. But because they only have a finite capacity, this trapped soot periodically has to be emptied or 'burned off' to regenerate the DPF.
and to solve the problem you must change the  diesel particulate 
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Kind Regards
Engineer mohammad