In a threat to brake discs, the idea came up to let the car roll in N-position in order to prevent recuperation, in order to load the discs more strongly. I remember in an English-language forum a statement for this, that one should not do this because it can damage the gearbox. Background were the missing gear paddles of the old Ioniq generation. To simulate the sliding / rolling came up the idea, the gearbox nevertheless simply In this forum, however, a warning was given not to do so. Also in the manual of our PHEVs, it says not to let the car roll on N at higher speeds and for longer periods of time. For short towing trips at low speeds, the OK is, but not at 100km/h. Background is the function of a double coupling gearbox. Unlike most manual gears, the gears do not simply run in an oil bath, but will be This oil pump is directly connected to the input shaft. The oil pump may also have other tasks. The output shaft of the transmission is connected directly to the wheels via the differential. This means that when the wheels rotate, the output shaft also rotates, and the connected gears in the transmission. The oil pump is connected to the input shaft because it does not have to cover as large a speed range as the output shaft. With our PHEVs, the E-motor is firmly connected to the input shaft. The burner can be coupled to the input shaft, or connected to the HSG (starter generator). Unfortunately, neither the E-motor nor the burner or the HSG rotates in the N-position. Therefore, the input shaft also stands in the following, which leads to the stoppage of the oil pump. This, in turn, allows the gears to run dry, which increases the wear extremely. In a VW forum similar things were discussed. There was an official position name of VW. There it was said that you should not do it, but it would not be a problem, because the burner still runs in idle mode and thus maintains the lubrication. Besides, the gearbox is not loaded. If the burner was also switched off, it would be a problem indeed. But that is exactly the case with us.