Join Date: May 2017
Location: Brisbane Australia
As an engineer, it looks like a material problem to me! It looks like an impurity or stress concentration caused a crack to propagate. I.e. the crack can only be due to a material problem.
If you took a good look at the two parts, you should be able to see where the crack started.
Just tell them that an engineer (me) that has worked for BMW, believes the crack is due to a material defect.
Last edited by porth; 10-14-2019 at 07:56 PM.