Hello, with my bmw f11 with the n57 (3l d) with 182tkm the dpf is slowly full. get in the fs more often entry that the pressure sensor before dpf has one away. Was again. I read the counterprints times which is quite high and the regeneration intervals become shorter. So the dpf has to be cleaned therefore my question what can you recommend a thermal or chemical cleaning. I have read something in the topic and both have before as well as disadvantages. the dpf is not laid and so often burned until it is clean. But how do the ash get out? In the case of chemical treatment it can happen that the ceramic is melted and only the soot has been cleaned which may not lead to proper successful cleaning. Have you made an experience which cleaning is better and which company you can recommend Thank you.