Good morning, After I’ve already read several posts here in the forum and have already tried everything, since you my last possibility. To make it short, I drive a Seat Leon 1p Mkb bmn. I had my diesel particle filter removed and cleaned two weeks ago. The free workshop told me that the filling level was about 19% and they changed it in the control unit. After that the lamp was of course gone. Exactly a week later the lamp went again a Then I switched the differential pressure sensor on suspicion and learned with 5x from and on. After that there was rest again. See there a week later zack, again the lamp is there? The car makes me despair. Have 185tkm and when the gas is taken the gas sometimes spontaneously goes away. It turns in the stand gas almost 1000 revolution. Sometimes I take the noise that sounds like milk foaming. Error memory is read out today at noon. For help I am grateful