Opel Astra J 2010 1.4 140KM - P0299 Turbine Error, Squeaking Sound During Acceleration

Hello
I have astre J 1.4 140KM from 2010.
Recently I was traveling, the `` car breakdown '' light came on - contact service
The car lost some power, after extinguishing everything went back to normal with power, but when starting it sounds like a louder squeaking (every time) and when adding gas for 1 s, you can also hear a very gentle squeaking during acceleration from the very bottom. (1000 revs - 3000 revs).
After connecting to the computer there is a P0299 turbine error - undercharging.

With this squeaking I drive for 2 weeks (mainly a 50 km route once) the car behaves perfectly, just squeaks, today the car failure light is on again

I can't diagnose this squeaking, it seems to me from the intake manifold but I'm not sure because it carries around the car.

The V-belt was removed and still squeaks.

Did any of your honorable colleagues have such a case. Thanks for the answer.

The description shows that you have a leak on the way turbo-wires-intercoller-suction manifold.

Squeaking eliminated, it turned out that the candle was not tightened.
To be sure, I replaced the candles because the error returned P0299.

Earlier, the message '' car breakdown .... '' was displayed once a week
Now error P0299 appears after driving 2-5 km. and the display shows and goes into safe mode.

I checked all connections and they seem ok

does anyone have any idea what to look out for?
and why after tightening the candle error occurs so often?

Problem solved,
diaphragm in the valve cover + valve in the intake manifold, regeneration 700 PLN