I believe many premature turbo failures are because of neglecting to let it idle for a bit before engine shutoff after hard driving. This must've been the cause of numerous problems with Accent CRDi cabs and ignorant cab drivers, the reason why there are so few Accent cabs running around nowadays despite them being relatively new.

Hyundai CRDi's are actually quite successful. Many Starex CRDi's are still running around, most likely with high mileages already, and they are one of the first mainstream CRDi's sold here, besides the problematic Isuzu 4JX1. It hasn't become notorious for any particular problem that I know of besides normal wear and tear or abuse and neglect.