Possible causes of jerking when shifting gears in the Mazda CX-5 automatic transmission:
Transmission fluid problems:
*Low fluid level
* Contaminated or old fluid
*Wrong fluid type
Solenoid problems:
* Faulty or dirty solenoids
* Incorrect hydraulic fluid pressure
* Electrical problems
Problems with the hydraulic block:
* Clogged or worn hydraulic lines
* Faulty or sticking valves
* Pressure leaks
Problems with mechatronics:
* Faulty sensors or electronics
* Software glitches
*Wiring problems
Other possible reasons:
* Worn or damaged clutches
* Problems with friction linings
* Torque converter malfunction
Troubleshooting steps:
* Check the transmission fluid level and condition: Measure the fluid level and check its color and smell.
* Flush the transmission and change the fluid: This will help remove contaminants and old fluid.
* Check solenoids: Clean or replace faulty solenoids.
* Check the hydraulic block: Disassemble the block and inspect the passages and valves for blockages or wear.
* Check the mechatronics: Connect the OBD2 scanner and check for fault codes. Reprogram or replace faulty components.
* Check clutches and friction linings: Worn components must be replaced.
* Check the torque converter: Replace or repair the faulty torque converter if necessary.
Note: Eliminating jerking when shifting gears in an automatic transmission requires special knowledge and equipment. It is recommended to contact an authorized service center for diagnosis and repair.