Hello, And this is about our Saab 9-3, which we recently bought used. 9-3 Kombi 1,9 tdi 150PS First registration Sept. 2005. In the letter and bill there is nothing of a soot particle filter, as well in the tax notice and thus we pay taxes as if he had no one. However, when buying and even now my father assumed that a particle filter is already standard at the year 2005 ?! Does anyone know if it can also be with year 05 that no particle filter How can you just find out? How does a particle filter look like, or can you even see it when you’re under it? Thanks for the help, Greeting Peter