Quote Originally Posted by Decker1.8t
aftermarket DV is sometimes a sign of it being chipped. check boost pressure and check where it peaks at. turbo should be okay. if you hear a loud dentist drill whine then it's fucked, but you'd notice it right away. 1.8t coilpacks suck and often go bad.

you say the car runs smoothly, so maybe nothing's wrong. enjoy it
Good advice from an ex-1.8t owner ...why'd ya leave the darkside?! Lol...