The 6-speed automatic transmission Aisin TF-61SN was assembled by the company from 2003 to 2009 and was installed on the most powerful versions of the Transporter T5 minibuses under the index 09K. This transmission was developed jointly with the German concern VAG and is known as AQ400.
Specifications
| Production years | 2003-2009 |
| Type | automatic transmission |
| Number of gears | 6 |
| Type of drive | front |
| Engine volume, l | up to 3.2 |
| Torque output, Nm | up to 400 |
| Recommended oil | G 052 025 A2 |
| Oil capacity, liter | 7.0 |
| Partial replacement, liter | 5 |
| Replacing the filter | every 60 000 km |
| Gearbox lifespan, km | ~250 000 |
| Weight, kg | 85 |
Gear ratios Aisin TF-61SN
Using the example of a 2007 Volkswagen Transporter with a 3.2 liter engine:
| Main | 4.453 |
| 1st | 3.949 |
| 2nd | 2.303 |
| 3rd | 1.556 |
| 4th | 1.164 |
| 5th | 0.860 |
| 6th | 0.688 |
| Reverse | 3.422 |
Using
The transmission was installed on:
- Volkswagen (as 09K) Transporter T5 (7H).
Disadvantages of the Aisin TF-61SN gearbox
- This is a reliable gearbox, but its service life depends heavily on the cleanliness of the heat exchanger.
- With frequent overheating, serious gearbox repairs may be needed as early as 150,000 km.
- Also, with active driving, the torque converter locking clutch wears out.
- Vibrations quickly break the oil pump bushing, and then all the other bushings.
- As in all modern automatic transmissions, it is important to change the lubricant frequently or the hydraulic unit will become clogged.
