Possible causes of kicking when shifting gears in a Mercedes automatic transmission:
1. Low automatic transmission fluid level: Make sure that the automatic transmission fluid level is normal and use the fluid recommended by the manufacturer. The optimal level of automatic transmission fluid in Mercedes can be checked with a warm car at idle speed.
2. Dirty or clogged automatic transmission filter: A dirty filter can restrict fluid flow, causing clutches to slip and kick. It is recommended to change the automatic transmission filter in accordance with the maintenance regulations.
3. Faulty automatic transmission solenoids: Solenoids are responsible for controlling the hydraulic channels inside the automatic transmission. A faulty solenoid can cause improper shifting and kicking.
4. Wear on clutches or automatic transmission drums: Over time, clutches and drums inside automatic transmissions can wear out, leading to slippage and kicking.
5. Faulty vehicle speed sensor or transmission position sensor: These sensors provide the automatic transmission with information about vehicle speed and transmission position. Failure of these sensors can result in improper shifting and kicking.
6. Faulty gear shift mechanism: Faulty gear shift mechanism, such as a faulty selector or shift lever, can lead to incorrect gear selection and kicking.
7. Problems with automatic transmission software: Sometimes problems with automatic transmission software can cause incorrect gear shifting and kicking. To resolve this issue, you may need to update or reprogram the software.
8. Torque converter malfunction: The torque converter connects the engine to the automatic transmission. A faulty torque converter can cause slipping or vibration, resulting in kicking.
9. Malfunction of the automatic transmission electronic control unit (ECU): The ECU controls the operation of the automatic transmission. A faulty ECU can result in incorrect gear shifting and kicking.
10. Malfunction of the hydraulic unit: The hydraulic unit controls the flow of fluid into the automatic transmission. A faulty hydraulic unit can result in incorrect gear shifting and kicking.
Solution:
To eliminate kicks when shifting gears in a Mercedes automatic transmission, it is recommended to contact a car service center for accurate diagnostics and repairs. Diagnostics may include checking the automatic transmission fluid level, scanning error codes, inspecting the automatic transmission filter, and other tests. Based on the diagnostic results, the mechanic may need to replace faulty components, update software, or perform other repairs to restore normal operation of the automatic transmission.