But you just went through the dpf issue. Clear the codes and see if they return. Of course any code, and any clearing of codes- resets readiness.
My issue is that I get an occasional 4d16 bmw code, pending 20ee, which is scr efficiency. But I freaking passed the tests 2 weeks ago only for that code to pop up and destroy it. None of this sensitive stuff on other clean diesels, just bmw. Had they not made it so pricey to fix, I'd love to keep the emissions stuff, but really the pricing and price changes just questions sanity lol.