Technical Service Bulletin B540425 — 2025 BMW M5
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | B540425 |
| Manufacturer | |
| Vehicle | 2025 BMW M5 |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin Summary
The Sky Lounge sunshade does not open/close. Concern may be intermittent. The following fault codes are stored in the FZD (Roof Centre Function) control module during a vehicle test: 0302A0- ESH (electrical sunshade): No standardization system 03029C- ESH (electrical sunshade): No init because boundary conditions not valid (motordiver)
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.