Rev-related whine/whistle
 

Had to move the S8 today from it's temporary home back to my reconstructed driveway.

It drove fine but I noticed a prominent whine/whistle that changed note absolutely in line with engine revs. Seemed to be coming from centrally behind the dash.
Parked on my drive and revving the engine I still just could hear it, though less obviously, so I wonder if it's related to load/gearbox in some way?

I couldn't hear it from outside the car, not even with the bonnet open. :Confused:

Something else to add to the list for the D2 Doctor. :cool: Thoughts anyone on what it might be?

AC compressor. Does it go away if you press 'Econ'?

Good thought. +++ Unfortunately it's no longer doing it after sitting on my drive nice and warm for a couple of hours. Even with a bit of spirited revving.

All Econ does (apart from it's intended purpose) is cause the engine revs to increase due to reduced load. :D

I'll see what happens if I drive it anywhere before the MOT runs out next week, though that's not very likely. On the other hand, who needs an excuse to take an S8 for a spin...….. :rolleyes: