I am not sure maybe it is somthing else or more likly nothing but normaly I hear the turbo at about 1500 RMP and now I am not hearing it till 2700 RPM. The total acceleration does not seam to be as impressive either. Would this mean that possibly one of the turbos has failed?

On another note, there is a wobbling sound from under the hood at 80 and when I brake it goes completly away until I take my foot of of the brake.

Any one have any ideas for me?

Thanks

 

Get it pluged in at an audi centre if there are any faults it will show up on the diagnostics