320d m sport E90 177bhp
A 2008 320d used the N47 engine which does not have huge swirl flap issues like earlier engine do. The potential for trouble still exists, but the chances are much lower than with the older designed engines.
Please let me know if you have further questions. Please do not forget to click a positive rating as this is the only way I receive credit for my answer, thank you. Best wishes with your vehicle.