Automobile technology seems to have entered a new milestone, and it is already the world of dual-clutch models in China. But many car owners still talk about the phenomenon of "dual clutch" discoloration. Today, Brother Xu will give you an analysis of the failure of the selector gearbox.
Principle of dual-clutch gearbox
Dual clutch gearbox, as the name implies, has two clutches. The principle is derived from the manual transmission, in which one clutch is responsible for 1.3.5.7 odd-numbered gears, and the other clutch is responsible for 2.4.6 even-numbered gears.
Under the control of the computer, for example, if you are running in 2nd gear, then 3rd gear is already in the waiting zone, so gear shifting is basically seamless and will also reduce fuel consumption.
At present, dual-clutch gearboxes can be divided into two types, dry and wet, but most models are matched with wet dual-clutch, because of good heat dissipation, the failure rate will be reduced.
(two) failure phenomenon and treatment method
Phenomenon 1: 1.3.5.7 gear cannot be mounted or R gear cannot be mounted.
Solution: The failure occurred on the gearbox computer, and many maintenance personnel would recommend replacing the computer board.
But according to the experience of senior engineers, just replace the sensor, which can save a lot of maintenance costs.
Phenomenon 2: Start to freeze at high throttle
Handling method: The point of failure is caused by the slippage of the clutch. It is recommended to replace the clutch plate, which is mostly in the dry dual-clutch gearbox.
Phenomenon 3: abnormal noise at the start
Treatment method: This shows that the flywheel has been damaged, which is caused by the abnormal noise caused by the excessive gap. The flywheel is damaged, causing abnormal noise at the start of the vehicle.
The flywheel is a component that transmits the power of the engine to the gearbox. It is recommended to replace the flywheel with shock absorber to completely solve the problem.
Summary: Many people think that China is an experimental base for dual-clutch gearboxes, and ATs are matched abroad.
But car manufacturers are doing it to reduce costs and improve market competitiveness. Therefore, we must pay attention when purchasing dual-clutch gearboxes. We must read the configuration table clearly. We must choose wet dual-clutch gearboxes, which are the latest version.
Thank you for your attention and support!