If you have a corrosion issue that main dealers clearly state affects a batch and get fobbed off, why not contact Watchdog or Rogue Traders and see if Anne Robinson/Matt Allwright fancies doing a feature on TV to publically shame the mothership into action ?
If the bike press won't help us because they don't want to lose one of their major advertisers perhaps a BBC consumer programme could be the way forward.
Anyone got any ideas how to get started?
I would happily tell let them see my bike and give them an interview.
Don't think BMW would welcome the publicity.