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March 3, 2026 Service bulletin

Malfunction indicator lamp (MIL) is triggered by the erroneous fault code(s) BA0023

BMW technical service bulletin B612225 for 2026 BMW M5, 2025 BMW XM and 2025 BMW 550e Xdrive and others.

Bulletin number
B612225
Component
Electrical system
Summary
Malfunction indicator lamp (MIL) is triggered by the erroneous fault code(s) BA0023 - Control unit: internalfault (software group fault) In addition, the BA0008 - CCU, internal coolant temperature sensor:Signal implausible faults may be stored in the CCU memory. However, AC charging is still operating as designed, without any related drivability complaints. Affected PHEV vehicles have the CCU-03 (7.4 kW / 11 kW) with I-levels from 24-07-500 to 25-11-5xx.

Owners of these vehicles have filed 1 complaints in the electrical category.

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