Audi A3 2.0 TDI owners - quiet turbo whistle?

[nonicker]

A3 2.0 TDI 150 Stronic, 39.000km. Inside cabin i can hear very faint, quiet, turbo whistle.
Its barely audible. Only when slowly accelerating (light gas pedal) at lower speeds.
For example, when accelerating from a standstill of about 1500 revolutions per minute (while the diesel sound is not yet so audible).
Again, turbo whistle is very faint (barely audible).

Any 2.0 TDI owners here that can confirm this as "normal" - or not?

 

[NHN]

I'd do a turbo delete then the silent whistle will go.

 

[Dubjam]

My previous 8P did this after going in for a cambelt change at a well know VAG garage. It didn't do it before then. Never figured out what it was as Sadiq Khan outlawed the car so I needed to swap.