Technical Service Bulletin B540819 — 2018 BMW 640I
EQUIPMENT ADAPTIVE/MOBILITY
Bulletin Details
| TSB ID | B540819 |
| Manufacturer | |
| Vehicle | 2018 BMW 640I |
| Component | EQUIPMENT ADAPTIVE/MOBILITY |
| Communication Date |
Bulletin Summary
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.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.