The 8-speed automatic transmission Aisin TR-80SD or VAG 0C8 was produced by the concern from 2010 to 2018 and was installed on the Audi Q7, Porsche Cayenne 2 and Touareg 2 with 3.0 TFSI, 3.6 FSI and 4.2 FSI engines. A related transmission was installed on models from Toyota and Lexus under the symbol TL-80SN.
TR‑80 family: TR‑80SD, TR‑81SD, TR‑82SD.
Specifications
| Production years | 2010 – 2018 |
| Type | automatic transmission |
| Number of gears | 8 |
| Type of drive | all wheel |
| Engine volume, l | up to 4.2 |
| Torque output, Nm | up to 550 |
| Recommended oil | Toyota ATF WS |
| Oil capacity, liter | 10.7 |
| Replacing the oil | every 60,000 km |
| Replacing the filter | every 60,000 km |
| Gearbox lifespan, km | ~350 000 |
| Weight, kg | 121 |
Gear ratios Aisin TR-80SD
Using the example of a Audi Q7 2012 with a 3.0 TFSI engine:
| Main | 3.7 |
| 1st | 4.845 |
| 2nd | 2.840 |
| 3rd | 1.864 |
| 4th | 1.437 |
| 5th | 1.217 |
| 6th | 1.000 |
| 7th | 0.816 |
| 8th | 0.672 |
| Reverse | 3.825 |
The transmission was installed on:
- Audi Q7 1 (4L) in 2010 – 2015;
- Porsche Cayenne 2 (92A) in 2010 – 2017;
- Volkswagen Touareg 2 (7P) in 2010 – 2018;
- Hongqi HS7 I in 2019 – 2023; HS7 II since 2023.
Disadvantages of the TR-80SD gearbox
- This is a reliable and durable gearbox and problems appear only at high mileage;
- If you do not change the oil, the valve body may become clogged already at 120-150 thousand km;
- Then shocks and vibrations appear, and the gearbox oil pump suffers greatly from them;
- It is important to keep the cooling system clean; this gearbox does not tolerate overheating.
