BMW TSB #612213
2012 BMW 640
Affected Component: ELECTRICAL SYSTEM:12V/24V/48V BATTERY
- """Increased battery discharge!"" CC Message upon Startup. CAUSE A software error in the Intelligent Battery Sensor causes an incorrect State of Charge (SoC) to be stored in the DME. The power management system then interprets this as a heavily discharged battery and informs the customer via a CC message. In reality, the battery does not have a problem."