Hello, I have an S80 with D5 engine and 163hp 2005 with automatic. Recently it is negative that the car starts to roar at 80. At 100 you have the highlight so that I have to run my sound package otherwise you get pressure on the ears. At 110 km/h the noise decreases again and at 120 km/h and up it drives as I am used to it from the thick. It doesn’t matter whether I give gas or let the car roll. I would be grateful for every tip I myself The last inspection of the axles came 8 months ago and without any defects. Greeting Christopher.