Automatic transmissions installed on Nissan Almera N15:
4-speed RE4F03B
* Engine model: 1.6i GA16DE
* Years of production: 2000-2006
4-speed RE4F04B
* Engine model: 2.0i SR20DE
* Years of production: 2000-2006
Specifications:
* Both transmissions are hydro-mechanical 4-speed automatic transmissions with planetary gear sets.
* Have a torque converter as a clutch.
* Control is carried out using a hydraulic control module, which interprets sensor signals and controls the hydraulic actuators.
* Features an “Overdrive” mode to improve fuel economy when driving at high speeds.
Peculiarities:
*The RE4F03B transmission was generally considered more reliable and less prone to problems than the RE4F04B.
* The RE4F04B was more expensive to maintain due to its more complex design and more parts.
* Both transmissions required regular maintenance, including oil and filter changes every 30,000 km.
*If not properly maintained, problems with gear shifting, slipping and leaks may occur.