The Toyota AA81E 8-speed automatic transmission has been produced at the Japanese plant since 2012 and is installed on such popular models of the company as the Lexus IS350, GS350 and RC350. In the Aisin range this automatic gearbox is known as the AWR8L35.
Specifications
| Type | automatic transmission |
| Number of gears | 8 |
| Type of drive | rear |
| Engine volume, l | up to 3.5 |
| Torque output, Nm | up to 380 |
| Recommended oil | Toyota ATF WS |
| Oil capacity, liter | 9.5 |
| Partial replacement, liter | 4.0 |
| Maintenance | every 50 000 km |
| Gearbox lifespan, km | ~300 000 km |
| Weight, kg | 104 |
Gear ratios Toyota AA81E
Using a 2015 Lexus IS350 with a 3.5 liter engine as an example:
| Main | 3.133 |
| 1st | 4.596 |
| 2nd | 2.724 |
| 3rd | 1.863 |
| 4th | 1.464 |
| 5th | 1.231 |
| 6th | 1.000 |
| 7th | 0.824 |
| 8th | 0.685 |
| Reverse | 2.176 |
Using
The transmission was installed on:
- Lexus GS200t 4 (L10) in 2015 – 2017;
- Lexus GS300 4 (L10) in 2017 – 2020;
- Lexus GS350 4 (L10) in 2013 – 2020;
- Lexus IS200t 3 (XE30) in 2015 – 2017;
- Lexus IS300 3 (XE30) since 2015;
- Lexus IS350 3 (XE30) since 2013;
- Lexus RC200t 1 (XC10) in 2015 – 2017;
- Lexus RC300 1 (XC10) since 2017;
- Lexus RC350 1 (XC10) since 2014;
- Toyota Crown 14 (S210) in 2012 – 2018;
- Toyota Crown 15 (S220) in 2018 – 2022.
Disadvantages of the Toyota AA81E gearbox
- At first owners complained about delays when shifting from second to third gear;
- New control unit firmware then appeared and the problem became irrelevant;
- In some cases, however, only raising the oil level with adaptation helps;
- Under active driving the valve body quickly gets clogged with clutch wear debris;
- And with heavy wear of the lockup clutch, vibrations destroy the oil pump bushing.
