[beemerten]

I have a x3 2,0 diesel and got a serious problem. When i removed my first turbo i discovered that all on the impeller blades was gone and ther was oil coming out of the housing and a good amount on the exhaust side.

I changed the turbo again as it was nothing to save. My new turbo was installed and the exactly same happened again. All the blades was good this time,but it blowed a lot of oil out bof the housing.

I wonder if it can be something with the crankcase ventilation that makes the pressure to be so high that it brakes the turbo seal inside the housing

Any ideas where i can start to check and how to proceed?