BMW 740I 2025 — technical service bulletin
Bulletin B631123 · NHTSA communication 11037533 · issued Sep 10, 2026
Technical service bulletin
communication type
Exterior Lighting
component
2025
model years
3
vehicle entries
Official summary
Moisture, condensation, and/or fogging are visible in one or both Daytime Running Lights (DRL) upper headlight assemblies.
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.