Service bulletins for the 2018 BMW 640i
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
279 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Sunroof are shown. Show all
| B540819 | 2020-01-21. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY; VISIBILITY. SUNROOF REVERSES WHEN CLOSING: The sunroof reverses direction (anti-traps) just as the sunroof glass meets the wind deflector. The sunroof may not properly initialize as a result. |
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| B540718 | 2019-03-18. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. PANORAMIC SUNROOF DOES NOT OPEN OR CLOSE. The panoramic sunroof will not open or close. The sunroof may only tilt with no other functions available. There are no faults stored for the panoramic sunroof. A software error in the Roof Function Center (FZD). |
| B540718 | 2019-02-25. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. PANORAMIC SUNROOF DOES NOT OPEN OR CLOSE. The panoramic sunroof will not open or close. The sunroof may only tilt with no other functions available. There are no faults stored for the panoramic sunroof. A software error in the Roof Function Center (FZD). |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.