[Logicoeur]

Yeah that's not how software works and you are talking to a software engineer. Turning off xdrive will have no catastrophic issues. The way xdrive works the transfer case is only engaged when wheel is losing traction above a certain amount. Xdrive can already send nearly up to 100% of the power to the rear, in optimal conditions. Then, since there's no coding for the MP LSD, and that it doesn't interfere with xdrive, we can safely assume xdrive must only intervene above the 30% max slip for the LSD. Even RWD cars are susceptible to one wheel peel if they have an open diff.

Moreover, you don't need to be the original manufacturer (BMW) to be able to safely modify a car or any of its parts. There are several aftermarket tuning companies that rewrite many portions of the DME which controls everything in the car. Turning off xdrive is not as unsafe as you clearly think it is. Bmw, with all its funding, engineers, and testing still makes mistakes. They still get leaky oil filter housings. They still run into electrical parts dying for no apparent reason. He'll, the oe CP failure is a perfect example of their incompetence.

Lastly, only the autobahn and places like it havs no speed limit. It's not every road in the country or region.

Enjoy your car, but don't spew your unsubstantiated fears on everyone else. Especially when you are wrong.