BMW TSB #B611816
2017 BMW i8
Affected Component: ELECTRICAL SYSTEM
- Summary
- "DRIVETRAIN MALFUNCTION & SME FC 21F0E3. Red Check Control message (CCM) " Drive: Check as soon as possible" Fault Code 21F0E3 "High-voltage electrical system: Insulation resistance below threshold (fault)" stored in the battery management electronics (SME) Extreme moisture in the high-voltage battery may lead to sporadic isolation faults."