Technical Service Bulletin B520721 — 2021 BMW Z4
ELECTRICAL SYSTEM:WIRING
Bulletin Details
| TSB ID | B520721 |
| Manufacturer | |
| Vehicle | 2021 BMW Z4 |
| Component | ELECTRICAL SYSTEM:WIRING |
| Communication Date |
Bulletin Summary
ROUTING OF DRIVER'S SEAT WIRING HARNESS: The seat wiring harness on the left front area of the driver's seat of the affected vehicles may have been routed incorrectly.
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.