BMW 550E Xdrive 2025 — technical service bulletin
Bulletin B612225 · NHTSA communication 11027772 · issued Jan 3, 2026
Technical service bulletin
communication type
Electrical System
component
2025
model years
5
vehicle entries
Official summary
The malfunction indicator lamp (MIL) may be triggered by the erroneous fault code: BA0023 - Control unit: internal fault (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 will still operate as designed, without any related drivability complaints. Affected PHEV (plug-in hybrid electric vehicle) vehicles with CCU_P1 (7.4 kW and 11 kW) with I-levels from …24-07- 500 to …25-11-5xx.
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.