I've got a noise coming from my engine somewhere, I went through a very deep puddle last week, and it was as high as my headlamps, I obviously didn't know it was so deep or I wouldn't have gone through, so now I'm left with dirty headlamps inside which I've sorted, and this noise coming from my 3.0 tdi engine, it sort of sounds like a supercharger, everything runs fine and I've checked for water in my engine and had a good look over it but I'm just left with this whine, it also sounds amplified from insidenthe car as well. Any ideas anyone?