Audi A4 B9 TPI 2044902/5 crackling sounds

This is an example of littler trouble which could bring big disappointment for any A4 B9 owner. Dispite VAG&words that such problem confirmed only on 2017 cars, its not true. Issue found on newer cars and most affected are TDI 190hp and TFSI 249hp. Thanks to community - the problem has been solved and described here: Official bulletins are: TPI 2044902/4 TPI 2044902/5