Yaris IV
1 generation · Select a generation to see engines
Which Toyota Yaris IV engine is the most reliable? See common problems, reviews and reliability verdicts across generations and engines.
Frequently asked questions
Which Toyota Yaris IV engine is the most reliable?
1.5 Hybrid (M15A-FXE) — Proven verdict. The 1.5 Hybrid (M15A-FXE three-cylinder Atkinson with Toyota's fifth-gen hybrid system — shared with the Yaris Cross) is the standout Yaris IV choice and among the most reliable powertrains in this catalogue: unstressed Atkinson petrol, no turbo, no DPF, no clutch, and the famously durable planetary e-CVT. Real-world economy is exceptional (often 4–4.5 L/100km) and the regen brakes last unusually long. The only genuine long-term item is the hybrid traction battery, which routinely lasts well beyond 200k and is repairable. The honest, near-bulletproof pick — buy with confidence and keep up the cheap servicing.
Which Toyota Yaris IV engines should you avoid?
None of the Toyota Yaris IV engines listed are rated "Problematic" or "Avoid" — but always check the service history before buying.
What are the most common Toyota Yaris IV problems?
The most commonly reported problems across all Toyota Yaris IV generations and engines: Denso low-pressure fuel pump recall (2018–2020 builds), Modest power (esp. 1.0), Minor age niggles, Hybrid traction battery (very long life), Minimal routine items.