BMW E90 335i/xi/is (N54) Turbocharger Replacement - Failures, Fitment, And Product Review
The OEM turbochargers on the BMW N54 engine have multiple methods of failure that are relatively common. Having to replace your failed turbos isn't a small task, so doing so with new OE units the first time is imperative. Turbochargers on the BMW N54, for the most part, last around 100,000 miles...
