Transmission type: 4-speed automatic transmission (AT) U340E
Key Features:
* Gear shift type: hydromechanical
* Number of gears: 4 (P, R, N, D, 3, 2, 1)
*Electronic gear shift control
* Torque converter lock
* Built-in differential
Working fluids:
* Automatic transmission oil: Toyota ATF Type T-IV
* Volume: 8.7 l when replacing with flushing; 3.0 l with partial replacement
Design:
* The U340E automatic transmission has a design with planetary gears and band brakes.
* Gear shifting uses hydraulic valves controlled by the transmission’s electronic control unit (ECU).
* The torque converter ensures smooth starting and transfers torque from the engine to the transmission.
* The differential distributes torque between the front wheels.
Peculiarities:
* “Power” mode to increase the gear ratio in high load mode.
* “Hold” mode to prevent gear shifting on descents or ascents.
* Protective functions to prevent overheating or mechanical damage to the transmission.
Service:
* Regularly check the automatic transmission fluid level and change it in accordance with the manufacturer’s recommendations.
* Flush the transmission every 80,000 – 100,000 km.
* Replace automatic transmission filters every time you change the fluid or flush it.
* Regularly check the condition of wiring, sensors and transmission solenoids.