Bora 1.8T Turbine Problem

I am not a professional repairman.

However, I still know how turbocharging works.

Volkswagen turbocharger

Indeed, as Xixia Tourism said.

You can only work at more than 3000 rpm.

It broke out in an instant

It needs constant oil supply (that is, continuous air intake and continuous air deflation without oil supply) to work.

Does the turbine stop working when you keep supplying oil?

I suggest you clean the inlet and outlet of the turbine.

There may be a foreign body.