Possible reasons for automatic transmission kicking in KIA Ceed 2011:
1. Low transmission fluid (ATF) level
* Check the ATF fluid level using the dipstick.
* If necessary, add fluid recommended by the manufacturer.
2. Contaminated or old transmission fluid
* ATP breaks down over time and accumulates contaminants.
* Replace ATP and filter according to the service schedule.
3. Faulty gear shift solenoids
* Solenoids control the flow of ATF through the transmission.
*A faulty solenoid can cause delays or kicks when shifting gears.
4. Torque converter malfunction
* The torque converter connects the engine and transmission.
* A worn or faulty torque converter can cause vibration, slipping and kicking.
5. Contamination or wear of clutches
* Clutches are used to change gears.
* Contamination or wear may cause slipping or kicking.
6. Mechanical problems
* Worn or damaged transmission parts (such as gears or synchronizers) can also cause kicking.
7. Malfunction of the transmission control unit (TCU)
* The TCU is the brain of the transmission.
*A faulty TCU can cause shift errors and kicking.
8. Problems with electrical wiring
* Faulty wiring can interfere with the operation of sensors or solenoids, resulting in kicking.
Actions to resolve:
* Check the ATF level and add fluid if necessary.
* Replace ATP and filter.
* Run diagnostics using OBD2 scanner to check for trouble codes.
*Consult a qualified mechanic for further diagnosis and repair.