I'm new in the BMW world and have a question about the OBC.
Today I have bought a BMW 540i (1997) that came from Japan - I'm in New Zealand btw.
So I was playing with the OBC, trying to understand all those settings, when somehow the screen went off. I have tried to turn the screen on but have no luck. I got the OBC manual but it's all in Japanese! no way! hahaha
I'm afraid I have changed the option to "Monitor off" but can't get that back. I know the buttons are working 'cause I can turn the little button and when I push it it changes to something, like radio or CD.
So please, if someone knows how can I reset the settings completely to get the screen on back again, let me know.