What Causes the Jerking and Abnormal Noise in Volkswagen's Dry Dual-Clutch Transmission?
2 Answers
Volkswagen's dry dual-clutch transmission may exhibit jerking and abnormal noise due to the following reasons: Low-speed driving: During low-speed driving, the dual-clutch transmission is prone to jerking. The primary reason is that the dual-clutch transmission lacks a torque converter and instead relies on friction plates to directly transmit torque to the drive shaft. While this design avoids the power loss associated with torque converters, the absence of the torque converter's buffering effect means that the two sets of clutch plates can create a noticeable impact sensation during gear shifts. Large rotational speed difference: During power transmission, the dual-clutch transmission operates in a state similar to a semi-engaged clutch. To minimize clutch plate wear, engineers design the clutch pressure plate and friction plates to engage as quickly as possible. If there is a significant difference between the engine output speed and the transmission output speed during this process, jerking can occur.
As a Volkswagen dry dual-clutch owner who commutes daily, I've experienced jerking and strange noises, which are genuinely frustrating. The jerking sensation is most common during low-speed starts or in traffic jams, feeling like the transmission hesitates, as if being dragged. The main reason is the rapid wear of the clutch plates. The dry design lacks oil lubrication, causing excessive friction, and frequent start-stop in the city leads to overheating. As for the strange noises, my car makes metal grinding sounds during gear shifts, likely due to loose bearings or gears. This Volkswagen DQ200 transmission is notorious for such issues in models like the Golf. I later had it repaired at the dealership, spending money on replacement parts. For daily driving, I recommend using S mode or manual mode to reduce clutch wear and avoid prolonged low-RPM driving. Regularly check the transmission—though dry types have less oil, maintenance can extend its lifespan. In short, these issues are quite common; early detection and repair can save a lot of trouble.