Is the Abnormal Noise in Dual-Clutch Transmission Normal?
2 Answers
Abnormal noise in a dual-clutch transmission is not a normal condition. The working principle of a dual-clutch transmission is as follows: one clutch corresponds to the odd-numbered gears, while the other clutch corresponds to the even-numbered gears. When the vehicle is engaged in one gear, the other clutch and the corresponding next gear are already in a ready state. As soon as the current gear is disengaged, the next gear can be immediately engaged. The functions of the transmission are: 1. To change the transmission ratio, expanding the range of torque and speed variation of the driving wheels, allowing the engine to operate under favorable working conditions; 2. To enable the vehicle to reverse while maintaining the same rotation direction of the engine; 3. To interrupt power transmission by using neutral gear, facilitating engine start, idling, gear shifting, or power output.
I previously owned a car with a dual-clutch transmission, and occasionally heard slight clicking sounds during low-speed city driving or gear shifts. This isn't a major issue, as it's mostly normal mechanical operation. However, if the noise becomes frequent or sounds like metal grinding, you should be alert - it could indicate clutch plate wear or insufficient lubrication. From my experience, ignoring minor abnormal sounds can lead to bigger troubles, such as gearbox damage which would be expensive to repair. I recommend fellow drivers pay attention to driving habits, avoid sudden acceleration, and regularly check transmission fluid. Safety first - don't wait until the car breaks down to regret it.
