Technical Service Bulletin B540123 — 2021 BMW B7 ALPINA
STRUCTURE
Bulletin Details
| TSB ID | B540123 |
| Manufacturer | |
| Vehicle | 2021 BMW B7 ALPINA |
| Component | STRUCTURE |
| Communication Date |
Bulletin Summary
?Water leaking into the vehicle from the headliner/microphone area.
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.