NeroRapid

Hello, unfortunately I didn't solved it yet. I guess it could be seal from turbo charger or leaking pipe. I don't want to think about faulty turbo unit because it could be so expensive to fix.

I was thinking it could be something related to inflow of air. Probably not enough air going in or out and this make whirrling sound hearble on the soundtrack during acceleration. Leaking pipe from turbo it can be solution because don't have smoke from exhaust, loss of power or turbo howl as well. When driving slower turbo seems to work normally also when drive at high speed everything looks good except this whirrling sound from the engine. I asked in Audi for diagnostic but they couldn't precise how long doesn't it take so I didn't wanted pay hundreds of pounds not knowing how many hours they spend on my car😉

Hello, The best way to hear that sound when accelerating is to use earphones but also without it whirling is noticeable in the background. I was driving on motorway with mixed surface where was some traffic. Pop up the volume as much as you can then you will find out what I mean. You right I highlight bits when I hear swirling sound. The first soundtrack: 0:06 - 0:13 1:51 - 1:56 Swirling sound is hearable in first soundtrack nearly all the time in the background but is quite because I wanted to keep the same speed to record that sound at 66mph. The second soundtrack: 0:13 - 0:30 0:55 - 1:12 1:12 - 1:22 1:36 - 1:44 2:04 - 2:20

Hello dear member, I own Audi A6 (C7) 2.0 TDI Ultra S-Tronic from 2016. I hear whistling/whirling sound when accelerating slowly or harder from 60 mph/70 mph at 4th, 5th, 6th or 7th gear even if I drive slower and want to accelerate this sound is hearable from front of the car. The sound comes from left/centre/front side of the car and is noticeable behind the dashboard. When I switch gear on neutral when driving is quiet also if car is stationary on parking gear to do revving nothing is happening as well. The sounds appearing only when accelerating not when revving. I also attached two files as a proof. Thank you received_630751581675963.mp3 received_1016880139036331.mp3

Ok, thank you;)