I think if you're going to separate out 8P from S3, you might as well just spec the entire car in the thread beginning (2.0TDI, 3.2, 1.8T, etc.) if it's an engine specific issue, and maybe even "6MT" or "DSG" for tranny issues. Of course at that point it's probably too complicated, and you're back to no flags ;-)
Just my neophyte opinion