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Is the tst7-speed dual-clutch transmission dry or wet?

2 Answers

ValerieRose

07/28/25 11:28pm

tst7-speed dual-clutch transmission is dry. The clutch plates of dry dual-clutch are not immersed in transmission oil, while those of wet dual-clutch are immersed in transmission oil. The dual-clutch transmission is located between the engine and the transmission, serving as the switch for power transmission between them. It is a transmission mechanism that can both transmit and cut off power. The composition of a car's dual-clutch transmission includes: dual clutch, three-shaft gear transmission, automatic shift mechanism, and electro-hydraulic control system. The function of the dual clutch is to ensure smooth starting of the car, reduce the impact load on the transmission gears during shifting, and prevent overload of the transmission system.

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DominicRose

08/12/25 3:50am

When researching dual-clutch transmissions before buying a car, I found that Volkswagen's 7-speed dual-clutch actually has two versions. The dry-type dual-clutch has clutch plates that directly contact each other, featuring simple structure but poor heat dissipation; while the wet-type is immersed in oil, offering much better heat dissipation and higher torque capacity. The newly released 1.5T engines mostly pair with the wet-type DQ381 model, used in popular models like the Golf 8 and Lavida. However, older 1.4T models often used the dry-type DQ200, which tends to have more noticeable low-speed jerking. If you're looking at used cars, carefully check the transmission model label or have a repair shop lift the chassis to identify the transmission housing shape for differentiation.

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