A6 C7 BiTDi 230kW - Turbocharger inlet valve fault / stuck

[castiello]

Hello, can anybody help me what to look for please?

I have A6 BiTDi 230kW, it started to go into limp mode. After logging with VCDS, it shows that some "turbocharger inlet valve" open circuit. Advanced values shows that "Bypass valve f high press turboch turbine inlet" is not opening / closing as expected. What to look for? I tryed output tests with VCDS and nothing seems to be faulty. wastegate actuator on big turbo operates freely, same for control circuit for smaller turbo.

From log, it should be some valve on smaller turbo, but which one? What part number?

I am really desperate from this issue, please help anybody.

Log attached

 

[castiello]

I see 11 views of my log describing The fault, really nobody can tell?
I had to put The car aside because its impossble to drive in limp mode. I really appreciate any help… dealership told me they will fix it by changing both turbochargers for 8.300€ plus 4 days of work… so thanks but no thanks…

anybody? Please…

 

[castiello]

Guys... almost a month and really nobody???? not even a clue?