Went ahead and fitted the Audi BT module 8P0 862 335 AA in preparation for my rnse retrofit. Works perfectly with the concert headunit, makes calls, receives perfectly etc.
I got the unit from Germany so the language it displays in the DIS is obviously in German. I want to change this to English so I went in to Module 77 - Telephone and opened up coding and changed the relevant number to English UK
But on changing the language to english and I press Do It an error comes up
Error 31 - Request out of range and the coding doesnt get saved.
Any ideas? I think the below coding is correct but obviously not the German and the final coding should be 0001222