Hello all - first real post after ages of stealing info. I have been looking into this too over the last few weeks (altough I must admit, I had not got round to reading this thread). I picked up my new car at the beginning of March. The info I have is as follows:
BMW advertised it in the brochure and online. Date at the bottom of the web page was July 2011.
BMW sent an internal mail to dealers (or at least my dealer) on 19 March 2012, notifying them of the issue (where it was put down to a publication error). The website was updated, but it still says July 2011 on the bottom which I think is pretty sneaky.
Having spoken to my dealer, he has suggested that BMW is looking into a retrofit option, but to date I still have no news.
There has certainly been no suggestion of monetary compensation as yet, but to be honest, that would be the worst case scenario for me. To my mind, any number they come up with will not be enough (silly numbers aside of course, like 50%).
I spoke to trading standards when I first realised the issue - they suggested that I was within my rights to be upset, and suggested that BMW should rectify the issue, provide monetary compensation, or that I return the car. This outcome should be mutually agreeable. Clearly Option 1 is the best to my mind, and I don't understand how the might of BMW can't figure it out.
Will keep you all posted with my little crusade.