Automatic transmission Hyundai Rio
The automatic transmission found on the Hyundai Rio is a 4-speed transmission called A4CF1. It was developed by Hyundai and has been produced since 2005.
Peculiarities:
* Torque converter
* Four gears
* Electronic gear shift
* ‘Overdrive’ mode
* Self-diagnosis system
Working principle:
The Rio automatic transmission operates through a torque converter and a planetary gear set. The torque converter consists of a pump, turbine and stator that transmit torque from the engine to the gearbox. The planetary gear set allows you to change the gear ratio using hydraulic pistons.
The electronic control unit (ECU) controls gear shifting based on the following factors:
* Vehicle speed
* Engine speed
* Throttle position
*Transmission fluid temperature
Modes:
The Rio gearbox has several operating modes:
* P (Park): Locks the transmission when the vehicle is stationary.
* R (Reverse): Shifts the vehicle into reverse.
* N (Neutral): The transmission is open, the vehicle can move freely.
* D (Drive): Standard forward driving mode with all four gears.
*2: Limits gear shifting to the first two.
* 1: Shifts first gear only.
Service:
Regular maintenance is required to keep your Rio automatic transmission running smoothly, including:
* Replace transmission fluid (ATF) every 30,000-60,000 km.
*Replace the transmission filter during a fluid change.
* Check ATF level every 15,000 km.
* Diagnostics and repair in case of problems with gear shifting.