BMW i4 2022–2024 — technical service bulletin
Bulletin B611224 · NHTSA communication 10253351 · issued Apr 15, 2024
Technical service bulletin
communication type
Electrical System
component
2022–2024
model years
3
vehicle entries
Official summary
The Combined Charging Unit (CCU) may not have been produced according to BMW specifications. This can lead to an internal coolant leak which can result in a failure of the Combined Charging Unit.Possible faults may include- HV charging interruption No high-voltage readiness when starting up The high-voltage system switching off while driving, causing the vehicle to coast slowly to a stop
Vehicles covered
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.