About 4 weeks ago, my battery went dead after a 5 day holiday. Worked well after a jump start but has happened several times since then, even after just one day of no use. BMW Dealer has checked and confirms that battery seems to be okay and MIGHT be the ASC system causing the drain.
I have now spent more than £500 on this problem in the last 4 weeks and they are still not SURE exactly what the problem is. They say the diagonisics point to '...a right steering sensor...' and if that doesn't work, then the DSC control unit.
I am weary of spending money on what they dont know is the cause of the problem! Any ideas please?