What Causes the Jerking When Starting a BMW and How to Solve It?
1 Answers
When the engine speed is relatively high, there will be 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 transmission and its shifting logic result in this issue. Due to the mechanical structure and principles of the dual-clutch transmission, it always has two gears engaged simultaneously.