Page 180 of the manual states that:
“In order to permanently deactivate Volkswagen Car-Net functions in vehicles with the “Security & Service” or “e-Remote” packages, the “online connectivity unit” must be deactivated by a qualified workshop at your request.”
Not 100% happy with the system myself, from a Big Brother point of view, although I’ve had no malfunctions or warnings, but I guess it’s another of those things that could save your life, given the right (or rather, wrong!) circumstances.