I've got a MK4 1.8T and have a sort of grinding/whirring noise.
It usually kicks in as I hit 50/60 and then carrys on as I come off the accelerator. Can't feel anything through the steering wheel and no problem changing gears.
Any bright ideas what it could be? Gearbox has been mentioned in other posts, but I'm also thinking wheel bearings? I jacked up the front and there's a little bit of play in the front wheels from side to side.
Thanks very much!