I had a battery installed at Firestone about 9 months ago and the BSD connector is not connected to anything. As I have recently learned,the new battery should have been "registered". At this point I do not know if they have the meansto do this. Why would they leave the BSD unconnected?
BMW Q&AAsk Your Question
2006 BMW 325i Question: Where on the battery does BSD (Bit Seriel Data Interface)connector attach?
Answer #1Greg's Orange Auto (15380 Answers) , Orange, CA - (714) 361-9386globalhelper January 22, 2013, 15:51Master
call and ask them why and can they fix it
Replykrader1, January 23, 2013, 11:21Rookie
I just got back from Firestone, they don't have the foggiest idea where the BSD is supposed to connect, do you?