Is Volkswagen’s dry dual-clutch gearbox really a "fighter in the garbage"?
In the domestic automobile circle, Volkswagen has been sprayed the worst, except for the gasoline-burning engine, which is the DSG dual-clutch gearbox.
Among them, the dry dual-clutch gearbox is simply a "fighter in the garbage" in the eyes of many professionals.
So, is this really the case?
In order to understand this problem, I think it is necessary to introduce the dual clutch gearbox.
Dual clutch gearbox, also known as powershift, is composed of two sets of clutches. One of the two clutches corresponds to the odd gear and the other corresponds to the even gear.
The working principle is that when one clutch is in working state, the next gear corresponding to the other clutch is already in preparation state. As long as the current gear is separated, it can be combined with the next gear immediately, which has the characteristics of high transmission efficiency and fast shift speed.
These two characteristics bring the most direct benefit, that is, fuel saving.
Simply understood, the dual clutch gearbox can be regarded as consisting of two manual gearboxes. Only the whole shift process is completed by the vehicle itself.
Structurally, it is also much more complicated than manual transmission.
From a global perspective, the dual-clutch gearbox is usually called DCT, and only the public calls it DSG.
Facts have proved that in the field of dual-clutch gearbox, Volkswagen technology is also in a leading position in the world.
Volkswagen’s dry dual-clutch gearbox, code-named DQ200, is the most widely used automatic gearbox in Volkswagen’s compact models, which was officially released in 2008.
Unlike DQ250 and DQ380, these wet dual-clutch gearboxes are lubricated and cooled by oil, which has good stability and can withstand greater torque. However, as a dry dual-clutch gearbox, DQ200 has the advantages of low cost, small size and lower fuel consumption.
The only disadvantage is that if you are in a state of frequent gear shifting, the clutch plate will overheat and the gearbox will be damaged.
Therefore, the early Volkswagen models equipped with DQ200 gearbox have a high probability of failure.
The "stigma" of the Volkswagen dual-clutch gearbox began.
After more than ten years of development, the Volkswagen DQ200 gearbox has gone through four generations, which is more mature in technology and the failure rate is much lower than that of previous generations.
In addition to better stability, there is less frustration in the driving experience.
Many people may think that the Japanese CVT gearbox saves fuel.
Here, I can responsibly say that Volkswagen DQ200 gearbox is not inferior to or even better than Japanese CVT in terms of fuel economy.
Especially when running at high speed, the fuel consumption can be as low as you can imagine.
If your car is carrying DQ200, you may have a personal experience of this sentence.
It is worth mentioning that FAW-Volkswagen also claims that DQ200 does not need any maintenance, that is, it does not need to change the gearbox oil for life.
However, according to the information of SAIC Volkswagen official website, the gearbox oil of DQ200 gearbox needs to be changed every 60,000 kilometers.
Therefore, it is still controversial whether DQ200 is maintenance-free for life.
At present, the models of North and South Volkswagen equipped with 1.4T and 1.5T engines are all matched with this DQ200 dry dual-clutch gearbox, such as LaVida, Bora, Sagitar and Golf.
If DQ200 dry dual clutch gearbox is really as useless as many people spray it, how can LaVida and Sagitar have such high sales?
Volkswagen, on the other hand, will not use a gearbox with poor performance on these main sales models.
Having said that, I just want to tell you that Volkswagen’s DQ200 dry dual-clutch gearbox is not as bad as many people say.
Of course, it doesn’t mean that DQ200 is perfect.
If your car environment is often driving in congested urban sections, I still suggest that you don’t choose Volkswagen models equipped with DQ200 gearboxes.
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