BMW 330I 2025 — technical service bulletin
Bulletin B063926 · NHTSA communication 11035476 · issued Jul 13, 2026
Technical service bulletin
communication type
Engine
component
2025
model years
5
vehicle entries
Official summary
Starter Generator Return
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.