Hello! If you want to find out about the ASD on the Internet, you could turn smoothly (hh, yes to the topic ). Some say that the ASD would lock the rear axle if a wheel goes through to distribute the force evenly on both wheels. The others say, however, that the ASD would work between the front and rear axles from a difference of 2km/h and the force that goes on the rear axle can only reach a small part. (so it is also in the instruction – wa But it doesn’t make much sense for an amateur like me) As I understand it, these are two completely different things – couldn’t even be more different. And that’s all in the inet (google search). I’m beginning to despair. Would be really grateful if someone could clarify that. I don’t know if there are different concepts for the ASD. I’m primarily concerned with the W126, especially row six cylinder with manual circuit. If I know what the ASD is now really, this would be helpful, because you could use the system more consciously in winter. “Helps with smoothness” is just as helpful to me as “Electricity comes from the socket”.