Two weeks before i actually got to take my passat on the road i took it in for a tune up... when the actually problem was a busted air intake boot with check valve... so i got that fixed... 640 dollars later... Now i hear a turboish sounding noise coming from the front of the car you can hear it when you reach 20 mph, and it just keeps getting louder the faster you go... any ideas on what this could be? it also seems to be vibrating slighly but that could just be me... we thought wheels are not balanced or bearings... any ideas?