How often should the oil in Volkswagen's wet dual-clutch transmission be changed?

[McPeter]

Generally, the first oil change for a dual-clutch transmission should be done at around 3 years or 60,000 kilometers, and subsequently every 2 years or 40,000 kilometers. Here is some relevant information: 1. Dual-clutch: During operation, a dual-clutch transmission generates heat due to friction, especially in slow-moving traffic where the transmission frequently shifts between first and second gear. The opening and closing of the clutch generate significant heat. Dry dual-clutch transmissions rely on air cooling, which is less efficient than the cooling system of wet dual-clutch transmissions. 2. Difference between dry and wet dual-clutch: The basic working principle is the same for both dry and wet dual-clutch transmissions, with two clutches taking turns to engage. However, the medium connecting the driving and driven discs differs. Dry dual-clutch transmissions use air, while wet dual-clutch transmissions use oil.