Gearbox Aisin TR-81SD

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.


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.

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