BMW 3 Series E90 — Reliability

E90 2007–2012 1 engine

Reliability Summary

Engine N43 — 48/100 CAUTION
Known Issues 2

Engine in this model

CAUTION 48

N43

N43 1.6/2.0 DI NA I4

Direct injection 4-cyl. Injector failure, high-pressure fuel pump issues, lean-burn NOx sensor probl...

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Known Issues Across All Engines

Issue Engine Severity Onset
High-pressure fuel pump failure N43 high 60,000 km – 120,000 km
Direct injector failure N43 high 80,000 km – 150,000 km