RE: vodafone mcu
Firstly, Vodafone don't care what you do - they see no viable information. The Voda SIM card is a M2M (machine to machine) GPRS link and connects to Renault's server in France. The TT connection is primarily one-way, from TT to you (for local traffic info) the process works in reverse, as your speed and location is used to provide traffic flow data to other users of the system.
The SIM is in the glove box (mine is a German one) but Voda DE is shown as my network carrier. As far as I'm aware, battery info IS transmitted, but only to you. Any lease issues are trapped at the dealership. It may be possible to disable the vehicle remotely, but have never heard of this actually happening.