After numerous attempts to retrieve the full functionality of TMC including, battery disconnections, downgrading to lower nav versions 27 and 29 and even disconnecting the Nav computer, today I managed to get the messages back.

But and theres a big but. With all the above endeavours I have somehow decoded my nav computer. It was coded to my vehicle as displayed in the service menu and telematics page. It now says the computer belongs to a 7er.

Does the Nav Coder program allow you to code the computer to your vehicle so that it is fully integrated.

Is there anyone in England who has the nav coder and is willing to help me out with the re-coding of my drive. Any help is greatly appreciated.