Technical Service Bulletin B640617 — 2020 BMW 540I
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | B640617 |
| Manufacturer | |
| Vehicle | 2020 BMW 540I |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin Summary
?AIR CONDITIONING COOLING IS INSUFFICIENT: There is insufficient or no cooling from the air-conditioner during high ambient temperatures. There also may be irregular A/C air flow from vents.
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.