BMW 330i GT F34 — Reliability

F34 Gran Tourer Mid 2016–2019 1 engine

Reliability Summary

Engine B48 — 82/100 BUY
Known Issues 3

Engine in this model

BUY 82

B48

2.0L Turbo I4

B58s little brother. Efficient, smooth. Remap to 260hp safe. Best modern 4-cyl BMW.

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Known Issues Across All Engines

Issue Engine Severity Onset
Coolant vent line failure B48 moderate 40,000 km – 100,000 km
Oil filter housing gasket — early units (2014-2016) B48 moderate 40,000 km – 100,000 km
Intake valve carbon buildup (DI) B48 minor 60,000 km – 120,000 km