Section 30 (Engine Intake System (Induction)): Turbocharger: Inspection

WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.

Check that there are no oil leakage or water leakage.
Check that there is no deformation, cracks or other damages.
Check each part for looseness.