The Aisin XB-20LN continuously variable transmission (CVT) was produced by the Japanese company from 2010 to 2016 and was installed exclusively on the Subaru Trezia in conjunction with the 1.5-liter 1NZ-FE engine. Depending on the model, this transmission was a variant of the Toyota K310 or K310F.
Aisin CVT: XA‑10LN, XA‑11LN, XA‑15LN, XB‑20LN.
Specifications
| Type | CVT (continuously variable transmission) |
| Number of gears | ∞ |
| Type of drive | front / all wheel |
| Engine volume, l | up to 1.5 |
| Torque output, Nm | up to 145 |
| Recommended oil | Toyota CVT Fluid FE |
| Oil capacity, liter | 8.1 |
| Partial replacement, liter | 3.0 (5.0 liters when removing the pan) |
| Maintenance | every 60 000 km |
| Gearbox lifespan, km | ~250 000 km |
| Weight, kg | 73 |
Gear ratios Aisin XB-20LN
Using the example of a 2012 Subaru Trezia with a 1.5 liter engine:
| Forward | 2.386 – 0.411 |
| Reverse | 2.505 |
| Final Drive | 5.356 |
Using
The transmission was installed on:
- Subaru Trezia 1 (NCP120) in 2010 – 2016.
Disadvantages of the Aisin XB-20LN gearbox
- This transmission is installed on a compact model with a weak unit and has a long service life;
- Even the typical K3 series problem with the Forward drum is rare here;
- However, frequent acceleration from a standstill and slippage quickly wear out the shaft bearings;
- And with excessive oil change intervals, the valve body becomes clogged with wear debris;
- Also, complaints about lubricant leaks, especially in the drives, are common on specialized forums.
