We have been supplied the green (I think) programming key a couple of times from MB Sheffield to allow us to complete the fitting of a new EIS, I had heard of this and Mike states it correctly TRP we receive a MB produced mag and there was an article on about it in there last month, they finished with chap (can't remem name) from RMi if you're a member will be happy to discuss it with you - just glad our local dealer uses their noggin and if you supply them with V5C copy etc there isn't an issue.

What a bloody trade eh wait until connected DoIP comes on strong