Mein BMW handler habe heute mich informiert das die injektorsystem geveckslet werden zollen.
Sorry for my bad German.
My BMW dealer called me today and told that there was a recall on the injection system. They need to replace some of it... I did not aske what specific they will replace, just signed up for a day in May.
I hope that could help you solving your problem.
Sadolin
2007 E92 BMW 320i