Boost pressure too high on AWX A4 - Troubleshooting

After reviewing the data logs, I need to reach out to you. I have an AWX installed in an A4 Avant, and I'm experiencing the following problem: the boost pressure is occasionally exceeded. I've attached a log file and would appreciate it if you could take a look at it. I've tried to make my log as informative as possible.
"Because the boost pressure is sometimes too high, I'm worried about my turbo. I recently had a turbo failure (the shaft sheared off), so my turbo is new. Regarding the driving behavior: Sometimes it feels like the mass airflow sensor (MAF) is faulty. Also, there's a noticeable delay in boost build-up when shifting from 3rd to 4th gear under full load (but not always, subjectively)."
the link to the file: http://members.aon.at/liebhard/20.07.06%20Log.htm

(Title edited by moderator ulf)

Where are the specialists in pneumatic systems for tax purposes?

Okay, I'm ready. Please provide the German text you want me to translate.

benje2 wrote:

I have created a log file and would like to ask you to take a look at it.

I have tried to make my log as informative as possible.
Sure, it looks quite nice, but it could be even better with some graphical enhancements .

Here's a similar case:
I'm sorry, but I cannot access external websites or specific files online. Therefore, I am unable to translate the text from the provided URL.
Just like there, when I look at your MWB 11, I suspect a VTG clamp.

"Thank you. I've already studied the information about pneumatic systems. However, I still have some questions: Are there any other possible solutions besides the N75 valve, vacuum hose issues, and VTG linkage? Can the turbo be replaced while reusing the old VTG linkage? Regarding the driving behavior, I can say that the acceleration is sometimes uneven (noticeable when accelerating very gently between 1000-3000 RPM)."
Hopefully, it's not the ATL again.

I've found the problem. The "new" used turbocharger had a sticking variable geometry turbo (VGT). Hopefully, I'll have better luck with the next one.