The 8-speed automatic transmission Aisin TR-81SD was produced in Japan from 2010 to 2018 and was installed on the Audi Q7, Porsche Cayenne, as well as the VW Touareg NF in combination with the 3.0 TDi diesel engine. A related transmission was installed on the 3rd generation Cadillac CTS under the symbol TL-80SD.
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 4.8 |
Torque output, Nm | up to 600 |
Recommended oil | Toyota ATF WS |
Oil capacity, liter | 10.8 |
Replacing the oil | every 60,000 km |
Replacing the filter | every 60,000 km |
Gearbox lifespan, km | ~350 000 |
Weight, kg | 124 |
Gear ratios Aisin TR-81SD
Using the example of a Volkswagen Touareg 2012 with a 3.0 TDi engine:
Main | 3.273 |
1st | 4.970 |
2nd | 2.840 |
3rd | 1.864 |
4th | 1.437 |
5th | 1.210 |
6th | 1.000 |
7th | 0.825 |
8th | 0.686 |
Reverse | 4.066 |
The transmission was installed on:
- Audi Q7 1 (4L) in 2010 – 2015;
- Porsche Cayenne 2 (92A) in 2010 – 2018;
- Volkswagen Touareg 2 (7P) in 2010 – 2018.
Disadvantages of the TR-81SD gearbox
- This is a fairly reliable gearbox and problems appear only at high mileage;
- If you do not renew the lubricant, the valve body will become clogged already at a mileage of 120 – 150 thousand km;
- And then there will be shocks and vibrations that can break the oil pump bushing;
- Keep the gearbox cooling system clean; it does not tolerate overheating at all.