What to Do When the A4L Has Jerking During Normal Driving?
2 Answers
Check whether the jerking occurs in a specific gear or during all gear shifts. Because the transmission's response speed is not fast enough, the upshift speed cannot keep up with the throttle input, resulting in a jerking sensation at the moment of gear shifting. Once the driver releases the accelerator pedal or presses the brake pedal, the generator immediately starts working, engaging the engine and imposing some load on it. When driving at low speeds, frequent shifting between first and second gears causes the clutch to repeatedly disengage and engage, failing to complete power transmission in a short time, leading to low-speed jerking.
Reading your question reminds me of similar issues I encountered with my A4L. That sudden jerking sensation during normal driving is truly frustrating, and it's mostly caused by transmission issues. Audi's dual-clutch transmissions sometimes have imprecise tuning, causing hesitation during low-speed gear shifts. First, check if the transmission fluid level is normal - if it's aged or dirty, replace it with genuine factory fluid. If the fluid is fine, the issue might lie with the mechatronic control unit, which requires professional diagnosis with specialized equipment. Develop smooth driving habits by avoiding sudden acceleration and hard braking to minimize jerking. Regular transmission maintenance like fluid changes every 60,000 km is worth the investment. I spent about a thousand yuan fixing mine last time - it's not a major issue, but neglecting it can affect engine longevity and increase fuel consumption. Start with simple checks, and if those don't work, visit a professional workshop. Safety always comes first.
