Hi all, im after some advise regarding the A3 ive only just purchased privatley 07 plate, my problem is the car feels a little underpowerd and i dont get the turbo whistle, its as though the turbo isnt working but car seems to run fine,would this be the case if the turbo had gone or could it be the air mass meter. any advise how i can find the route of the problem would be much apriciated .