BMW 530I 2024–2025 — service campaign
Bulletin B540625 · NHTSA communication 11027770 · issued Jan 3, 2026
Service campaign
communication type
Structure
component
2024–2025
model years
4
vehicle entries
Official summary
Through quality checks, it has been detected that the front left water drain hose for the slide/tilt sunroof isnot connected.
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.