1NZ-FXE vs M15A-FXE
Side-by-side reliability comparison
Specifications
Character
1NZ-FXE
"Toyota's first mass-market hybrid petrol engine (Prius NHW11/NHW20, Yaris Hybrid 2012-2020). An Atkinson-cycle 1.5 with a timing chain and an easy life thanks to the electric motor. Wear arrives late: oil burning past about 200,000 km and chain wear; on the 2004-2009 Prius the electric water pump was recalled. Check the recall and the oil level."
M15A-FXE
"Toyota's 1.5 three-cylinder hybrid (Atkinson cycle, chain-driven) in the Yaris and Yaris Cross from 2020, the Mazda2 Hybrid, the Aygo X Hybrid and the Lexus LBX; 116-136 hp system output. Reviewers call it one of the most refined engines in its class and most reported faults are not in the engine itself. Known items: the water-cooled EGR cooler can leak coolant (white smoke, falling coolant level), and the small 12 V battery can go flat on short trips - Toyota fitted a larger battery from November 2024. Still too new for much high-mileage data."