The 2.5-liter Toyota A25A-FKS or 2.5 D-4S engine has been produced by the concern only since 2017 and is installed on such popular models as Camry, RAV4 and Lexus ES250. There is a version of this power unit for bioethanol operation under the symbol A25A-FKB.
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 | 200 – 210 |
| Torque output, Nm | 240 – 250 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 87.5 |
| Piston stroke, mm | 103.4 |
| Compression ratio | 13.0 |
| Features | balancers |
| 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 Camry 2021) — city — highway — combined |
9.3 5.4 6.8 |
| Engine lifespan, km | ~250 000 |
The engine was installed on:
- Toyota Avalon 5 (XX50) since 2018;
- Toyota Camry 8 (XV70) since 2017;
- Toyota RAV4 5 (XA50) since 2018;
- Lexus ES250 7 (XZ10) since 2018;
- Lexus NX250 2 (AZ20) since 2021.
Disadvantages of the A25A-FKS engine
- Most of the complaints on specialized forums are related to various knocks or noise under the hood.
- The most discussed engine problem is leaks in the EGR liquid cooler.
- Sometimes this heat exchanger cracks and antifreeze seeps into the combustion chamber.
- At high mileage, the EGR system is finally clogged with deposits and wedges.
Frequently asked questions about the Toyota A25A-FKS
How much power does the Toyota A25A-FKS make?
The Toyota A25A-FKS develops 200 - 210 hp and 240 - 250 Nm of torque.
How much oil does the Toyota A25A-FKS take and which one?
Engine oil capacity: 4.5 liters. Recommended oil: 0W-20.
Does the Toyota A25A-FKS have a timing belt or chain?
The Toyota A25A-FKS uses a timing chain.
Is the Toyota A25A-FKS turbocharged?
No, the Toyota A25A-FKS is naturally aspirated.
Does the Toyota A25A-FKS need valve clearance adjustment?
No, the Toyota A25A-FKS has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Toyota A25A-FKS last?
The typical lifespan of the Toyota A25A-FKS is ~250 000 km with proper maintenance.
What is the fuel consumption of the Toyota A25A-FKS?
Toyota Camry 2021: city 9.3, highway 5.4, combined 6.8 L/100 km.
What cars was the Toyota A25A-FKS installed on?
Toyota Avalon 5 (XX50) since 2018; Toyota Camry 8 (XV70) since 2017; Toyota RAV4 5 (XA50) since 2018; Lexus ES250 7 (XZ10) since 2018; Lexus NX250 2 (AZ20) since 2021.
What are the common problems of the Toyota A25A-FKS?
Most of the complaints on specialized forums are related to various knocks or noise under the hood. The most discussed engine problem is leaks in the EGR liquid cooler. All known problems.





