The Volkswagen AQ301 (or 09U) 8-speed automatic transmission has been produced at the company’s US plant since 2023 and is installed in the restyled Jetta 7 sedan, as well as the Tayron, sold in the US as the Tiguan. Unlike its predecessors, this transmission is not manufactured by Aisin, but by Hyundai Transys.
AQ-8 family: AQ300, AQ301, AQ450, AQ451.
Specifications
| Type | automatic transmission |
| Number of gears | 8 |
| Type of drive | front |
| Engine volume, l | up to 1.5 turbo |
| Torque output, Nm | up to 270 |
| Recommended oil | Hyundai ATF SP-IV |
| Oil capacity, liter | 6.5 |
| Partial replacement, liter | 4.0 5.5 liters with the pan removed |
| Maintenance | every 60 000 km |
| Gearbox lifespan, km | ~250 000 km |
| Weight, kg | 83 |
Gear ratios Volkswagen AQ301
Using the example of a 2025 Volkswagen Jetta with a 1.5-liter turbo engine:
| Main | 3.23 |
| 1st | 5.07 |
| 2nd | 2.97 |
| 3rd | 1.95 |
| 4th | 1.47 |
| 5th | 1.23 |
| 6th | 1.00 |
| 7th | 0.81 |
| 8th | 0.67 |
| Reverse | 4.00 |
Using
The transmission was installed on:
- Volkswagen Jetta 7 (BU) in 2024 – …
- Volkswagen Tayron 2 (RM) in 2024 – …
Disadvantages of the VW AQ301 gearbox
- This automatic transmission hasn’t been around long enough for detailed breakdown statistics to be compiled;
- So far, forums have only reported hesitation or jerking in first gear;
- There’s also a humming noise when driving in eighth gear, which disappears over time;
- Like all modern transmissions, this automatic transmission requires regular oil changes.
