Technical Service Bulletin 540214 — 2013 BMW 640I
VISIBILITY:SUN/MOON ROOF ASSEMBLY
Bulletin Details
| TSB ID | 540214 |
| Manufacturer | |
| Vehicle | 2013 BMW 640I |
| Component | VISIBILITY:SUN/MOON ROOF ASSEMBLY |
| Communication Date |
Bulletin Summary
The sunroof does not close. This only occurs after the sunroof is left open for an extended period of time while the vehicle is parked in direct sunlight. The sunroof seal expands when exposed to the sun and becomes relaxed. This causes the sunroof glass panel to go into "anti-trap" mode during the closing process. This issue affects P/N 54 10 7 271 623.
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.