The 2.5-liter Toyota A25A-FXS hybrid engine has been produced by the company only since 2017 and is installed on models such as the Avalon, Camry, RAV4, Highlander, as well as the Lexus NX350h and RX350h. In the Chinese market, their versions are offered under the indices A25B-FXS, A25D-FXS and A25F-FXS.
Dynamic Force family: M15A-FKS, M15A-FXE, M20A-FKS, M20A-FXS, A25A-FKS, A25A-FXS, T24A-FTS, S20A-FTS.
Specifications
| Production years | since 2017 |
| Displacement, cc | 2487 |
| Fuel system | combined injection D4-S |
| Power output, hp | 174 – 189 |
| Torque output, Nm | 219 – 237 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 87.5 |
| Piston stroke, mm | 103.4 |
| Compression ratio | 14.0 |
| Features | Miller Cycle |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | VVT-iE + VVT-i |
| Turbocharging | no |
| Recommended engine oil | 0W-20 |
| Engine oil capacity, liter | 4.5 |
| Fuel type | petrol |
| Euro standards | EURO 6 |
| Fuel consumption, L/100 km (for Toyota Highlander 2022) — city — highway — combined |
6.7 6.3 6.5 |
| Engine lifespan, km | ~250 000 |
The engine was installed on:
- Toyota Avalon 5 (XX50) since 2018;
- Toyota Camry 8 (XV70) since 2017;
- Toyota Crown 15 (S220) since 2018;
- Toyota Harrier 4 (XU80) since 2020;
- Toyota Highlander 4 (XU70) since 2019;
- Toyota RAV4 5 (XA50) since 2018;
- Toyota Sienna 4 (XL40) since 2020;
- Toyota Venza 2 (XU80) since 2020;
- Lexus ES300h 7 (XZ10) since 2018;
- Lexus NX350h 2 (AZ20) since 2021;
- Lexus RX350h 5 (AL30) since 2022.
Disadvantages of the A25A-FXS engine
- Like all units with D-4S injection, it is quite demanding on the quality of gasoline;
- All engines of the Dynamic Force series are known for leaks in the EGR liquid cooler;
- This heat exchanger can crack and then the antifreeze will get into the combustion chambers;
- Closer to 100 thousand km, the EGR system becomes clogged with deposits and finally wedges.
Frequently asked questions about the Toyota A25A-FXS
How much power does the Toyota A25A-FXS make?
The Toyota A25A-FXS develops 174 - 189 hp and 219 - 237 Nm of torque.
How much oil does the Toyota A25A-FXS take and which one?
Engine oil capacity: 4.5 liters. Recommended oil: 0W-20.
Does the Toyota A25A-FXS have a timing belt or chain?
The Toyota A25A-FXS uses a timing chain.
Is the Toyota A25A-FXS turbocharged?
No, the Toyota A25A-FXS is naturally aspirated.
Does the Toyota A25A-FXS need valve clearance adjustment?
No, the Toyota A25A-FXS has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Toyota A25A-FXS last?
The typical lifespan of the Toyota A25A-FXS is ~250 000 km with proper maintenance.
What is the fuel consumption of the Toyota A25A-FXS?
Toyota Highlander 2022: city 6.7, highway 6.3, combined 6.5 L/100 km.
What cars was the Toyota A25A-FXS installed on?
Toyota Avalon 5 (XX50) since 2018; Toyota Camry 8 (XV70) since 2017; Toyota Crown 15 (S220) since 2018; Toyota Harrier 4 (XU80) since 2020; Toyota Highlander 4 (XU70) since 2019; Toyota RAV4 5 (XA50) since 2018 and 5 more (see the full list above).
What are the common problems of the Toyota A25A-FXS?
Like all units with D-4S injection, it is quite demanding on the quality of gasoline. All engines of the Dynamic Force series are known for leaks in the EGR liquid cooler. All known problems.
