The A4cf2 and A4cf1 transmissions are used in the Hyundai 1.4L engine.
The A4CF1-2 (commonly referred to as A4CF1/A4CF2) is a 4-speed automatic front-wheel drive transmission developed by Hyundai/Mitsubishi (around 2005-2007) for small-displacement engines (maximum 2.0L).
Description
Transmission Key Parameters (A4CF1 / A4CF2)
Type: 4-speed automatic transmission (front-wheel drive).
Engine Compatibility: Compatible with 1.4L, 1.6L, and 2.0L engines.
Solenoids: 6 in total (5 PWM solenoids, 1 VFS solenoid), used to control 4 clutches and 2 brakes.
Line Pressure:
Basic (A4CF1): 150 bar.
Professional (A4CF2): 210 bar.
Torque Converter: 3 elements, 2 phases, 1 stage; diameter 236mm-250mm.
Valve Body: In-line solenoid valve layout, where linear pressure solenoids are prone to failure.
Transmission Fluid Capacity/Type: Typically requires Hyundai genuine ATF SP-III or equivalent transmission fluid.
Common Models: Hyundai Accent, Elantra, Getz; Kia Cerato, Soul, Cerato. Gear ratio: 4th gear is usually an overdrive gear.
