What is the Difference Between 6-Speed Dual Clutch and 7-Speed Dual Clutch?

[MacLevi]

The biggest difference lies in the cooling method of the dual clutch friction plates: DSG6 is a wet clutch, while DSG7 is a dry clutch. The DSG7 dual clutch has a simpler structure, making it more economical. Compared to the slightly more complex DSG6, it has a higher failure rate. On the other hand, the DSG6 delivers more powerful performance. 1. 7-Speed Dual Clutch: This transmission involves three clutch plates working together—one in the middle and one on each side. One side clutch plate works in conjunction with the middle one to handle gears 1, 3, 5, and 7, while the other side clutch plate works with the middle one to handle gears 2, 4, 6, and R. When first gear is engaged, the shift to second gear has already begun, and so on. The dual clutch transmission eliminates the need to depress the clutch, resulting in faster shift times compared to a manual transmission. 2. 6-Speed Dual Clutch: This transmission involves two clutches working together, each with multiple clutch plates. One clutch controls gears 1, 3, and 5, while the other controls gears 2, 4, and R. The shifting principle is the same as that of the 7-speed transmission.