The front cover is exchangeable and available in various languages. Not many people know that, that's why I got my spare one from Germany with a Spanish front plate very cheap.
http://www.realoem.com/bmw/showparts...90&hg=62&fg=05
The BC unit itself is the same all over the world, as far as I know. Just switch from MPG to km etc. Left top side on the BC.
BUT, I am talking about E32, I read that E34 OBC's are with a chip?