Well here goes the description...

When I wot(or semi-wot) from stop or when accelerating from stop at uphill, I hear grinding noise in front of the engine. If I accelerate gently, I don't hear anything. When it grinds, I think the noise is coming from the front and I can feel (very slight) the vibration on the accel pedal.

My car is 2003 5at 71xxxmiles

If more info is needed, let me know. This is driving me nuts.

Thanks in advance

 

sounds like strain is causing one of your tensioners to do that. have someone rev it so you can watch and see

 

The car doesn't make any grinding noise when reved at neutral or park. Just when it's at both auto and manual-tronic