The Aisin XA-11LN continuously variable transmission has been assembled at a Japanese plant since 2010 and is installed in the Daihatsu Boon and Thor, as well as similar Toyota models such as the Passo, Roomy, and Tank. This transmission is essentially a modification of the popular Toyota K411 transmission.
Aisin CVT: XA‑10LN, XA‑11LN, XA‑15LN, XB‑20LN.
Specifications
| Type | CVT (continuously variable transmission) |
| Number of gears | ∞ |
| Type of drive | front |
| Engine volume, l | up to 1.3 |
| Torque output, Nm | up to 140 |
| Recommended oil | Toyota CVT Fluid FE |
| Oil capacity, liter | 6.5 |
| Partial replacement, liter | 2.5 (4.5 liters when removing the pan) |
| Maintenance | every 60 000 km |
| Gearbox lifespan, km | ~250 000 km |
| Weight, kg | 63 |
Gear ratios Aisin XA-11LN
Using the example of a 2011 Daihatsu Boon with a 1.3 liter engine:
| Forward | 2.386 – 0.426 |
| Reverse | 2.505 |
| Final Drive | 5.403 |
Using
The transmission was installed on:
- Daihatsu Boon 2 (M600) in 2010 – 2012;
- Daihatsu Thor 1 (M900) in 2016 – …;
- Subaru Trezia 1 (NCP120) in 2010 – 2016;
- Toyota Passo 2 (AC30) in 2010 – 2016;
- Toyota Roomy 1 (M900) in 2016 – …;
- Toyota Tank 1 (M900) in 2016 – 2020.
Disadvantages of the Aisin XA-11LN gearbox
- This CVT is installed on compact models with weak engines and lasts a long time;
- However, frequent and prolonged slippage can cause the bearings to start humming by 100,000 km;
- And if the transmission’s oil is changed infrequently, the valve body solenoids wear out quickly;
- Transmissions in this line are notorious for having less-than-durable drive seals;
- And if an oil leak isn’t noticed, the transmission will quickly run out of lubrication and fail.
