06/15/2026
Your BMW won't start and the dash is throwing battery codes. Here is what most quick l**e shops will not tell you: a new battery without a BMS reset is a new battery that quits inside a year. The BMW charging system needs to learn the new battery, or it will undercharge or overcharge it until the battery fails. We carry the diagnostic tool, the AGM battery, and the registration step. On site in 60 minutes across the Phoenix metro. 602-274-1506. Se Habla Espanol.