The Hyundai A4CF1 4-speed automatic transmission was produced in Korea from 2005 to 2019 and installed in models such as the Rio, Ceed, but is best known as the Solaris transmission. It is designed for engines up to 1.6-liter, 156 Nm and shares many similarities with the F4A41 transmission.
A4CF family: A4CF0, A4CF1, A4CF2.
Specifications
| Type | automatic transmission |
| Number of gears | 4 |
| Type of drive | front |
| Engine volume, l | up to 1.6 |
| Torque output, Nm | up to 156 |
| Recommended oil | Hyundai ATF SP-III |
| Oil capacity, liter | 6.8 |
| Partial replacement, liter | 2.5 (4.5 with the pallet removed) |
| Maintenance | every 60 000 km |
| Gearbox lifespan, km | ~250 000 km |
In 2005, Hyundai introduced a new 4-speed automatic transmission for compact models with engines up to 1.6 liters and 156 Nm. This transmission shared many similarities with the Mitsubishi F4A41. Its design is typical of a hydromechanical automatic transmission: engine torque is transmitted via a torque converter, and the gear ratio is adjusted by planetary gear sets. The transmission is controlled by a valve body consisting of five solenoids and a VFS linear pressure solenoid valve.
Gear ratios Hyundai-Kia A4CF1
Using the example of a 2012 Hyundai Solaris with a 1.4 liter engine:
| Main | 3.849 |
| 1st | 2.919 |
| 2nd | 1.551 |
| 3rd | 1.000 |
| 4th | 0.713 |
| Reverse | 2.480 |
Using
The transmission was installed on:
- Hyundai Accent 3 (MC) in 2005 – 2010; Accent 4 (RB) in 2010 – 2018;
- Hyundai i20 1 (PB) in 2008 – 2014; i20 2 (GB) in 2014 – 2018;
- Hyundai ix20 1 (JC) in 2010 – 2019;
- Hyundai i30 1 (FD) in 2007 – 2012;
- Hyundai Elantra 4 (HD) in 2006 – 2011;
- Hyundai Getz 1 (TB) in 2005 – 2011;
- Hyundai Solaris 1 (RB) in 2010 – 2017;
- Kia Cerato 1 (LD) in 2006 – 2008; Cerato 1 (LD) in 2008 – 2010;
- Kia Ceed 1 (ED) in 2006 – 2013;
- Kia ProCeed 1 (ED) in 2007 – 2012;
- Kia Rio 2 (JB) in 2005 – 2011;
- Kia Rio 3 (QB) in 2011 – 2017;
- Kia Rio 3 (UB) in 2011 – 2017;
- Kia Soul 1 (AM) in 2008 – 2011;
- Kia Venga 1 (YN) in 2009 – 2015.
Disadvantages of the Hyundai-Kia A4CF1 gearbox
- The most common problem with this automatic transmission is broken solenoid wiring, which can occur even before 50,000 km, causing the transmission to go into limp mode. Owners note that this failure usually occurs with transmission overheating.
- The torque converter clutch in the automatic transmission wears out quite quickly, and if the oil isn’t changed regularly, the solenoids don’t last very long. Dirty lubricant also reduces the lifespan of the oil pump, causing its bushing to simply spin.
- At high mileage, planetary gear failure is common. Wear initially causes gaps to widen slightly and a slight noise to appear, but then the pinion seat is damaged and they simply fall apart.
- Also, on specialized forums, owners often complain of oil leaks through the seals and the peeling of the Teflon rings in the rear cover, causing a drop in lubrication pressure.
