Technical Service Bulletin B631123 — 2021 BMW 740LI
EXTERIOR LIGHTING:HEADLIGHTS
Bulletin Details
| TSB ID | B631123 |
| Manufacturer | |
| Vehicle | 2021 BMW 740LI |
| Component | EXTERIOR LIGHTING:HEADLIGHTS |
| Communication Date |
Bulletin Summary
Moisture is visible in one or both of the Daytime Running Light (DRL) headlights.
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.