I kind of agree with Fish. What are the odds of getting two lemons with electrical issues when so many others appear to have no problems? I myself was very very annoyed at one of the local dealership who kept on blaming me for my low voltage issues and kept on telling me that they would not change the battery. I just went to another dealership and voila... Problem resolved. Not all SA are equal and that first dealership lost my business for treating me like I was an total idiot. Funny thing is they show up on the excellence best dealership award... I wonder what criteria they go by. Certainly not customer satisfaction of the service department.
2000 Z3 2.8 TiAg (retired)
2002 330i Orient Blue (retired)
2005 330Ci TiAg (retired)
2009 Z4 30i Space Gray (retired)
2011 Z4 35is Space Gray
2011 535i GT xDrive Space Gray