3 Series E90
1 generation · Select a generation to see engines
Which Bmw 3 Series E90 engine is the most reliable? See common problems, reviews and reliability verdicts across generations and engines.
Frequently asked questions
Which Bmw 3 Series E90 engine is the most reliable?
325d / 330d 3.0d (M57) — Reliable verdict. The straight-six diesel — strong, smooth and far more dependable than the N47 four-cylinder. Holds value better and sounds nicer. Watch the usual diesel wear items (swirl flaps, EGR, DPF, turbo) but the core engine is tough. The diesel to buy in an E90.
Which Bmw 3 Series E90 engines should you avoid?
Engines with the weakest reliability verdicts: 325i / 330i 3.0 (N53, direct injection), 316i / 318i / 320i 2.0 (N43), 318d / 320d 2.0d (N47), 335i 3.0 Twin Turbo (N54).
What are the most common Bmw 3 Series E90 problems?
The most commonly reported problems across all Bmw 3 Series E90 generations and engines: Swirl flap failure, Electric water pump failure, Electric water pump and thermostat failure, Valvetronic eccentric shaft sensor and oil leaks, HPFP / injector failure.