How to Solve the Jerking Issue During Start-up with Wet Dual Clutch Transmission?
3 Answers
When the engine speed is relatively high, there is some jerking sensation when shifting from first gear to second gear, which is caused by the significant change in gear ratio of the transmission. The mechanical structure limitations of the dual-clutch and its shifting logic contribute to this issue. Due to the mechanical structure and principles of the dual-clutch transmission, it always has two gears engaged simultaneously.
After driving a wet dual-clutch transmission car for a while, I found that the jerky starts are mostly caused by the clutch engaging unevenly. For example, excessively high oil temperature or aged fluid, insufficient lubrication can make the clutch action stiff; or poorly tuned software can cause the car's shifting logic to be chaotic. The solution is simple: first, check the transmission fluid and change it every 40,000 kilometers to ensure it's fresh and not too thick; then try a software upgrade, as manufacturers often release patches to optimize the control module. Drive gently in daily use, avoid stomping on the accelerator, and start slowly to reduce impact. Long-term neglect may damage the transmission system, costing thousands. Additionally, maintaining good cooling and avoiding frequent start-stop in traffic jams is more car-friendly.
My experience with wet dual-clutch transmissions over the past decade is that jerking often occurs during startup, especially when the engine is cold. The reasons might be uneven wear of the clutch plates or aggressive driving habits. My maintenance suggestions: change fluids on schedule, don't wait until they turn black; start gently by pressing the accelerator lightly, giving the clutch time to engage smoothly. If shaking persists, visit a professional workshop to read fault codes and confirm there are no sensor or electronic control issues. Remember, gentle driving extends transmission life and saves repair costs. Regular inspections can prevent major overhauls, and if you're handy, you can check fluid levels yourself using a dipstick.
