Technical Service Bulletin B520321 — 2021 BMW 840I
ENGINE AND ENGINE COOLING
Bulletin Details
| TSB ID | B520321 |
| Manufacturer | |
| Vehicle | 2021 BMW 840I |
| Component | ENGINE AND ENGINE COOLING |
| Communication Date |
Bulletin Summary
CLICKING NOISE FROM REAR FOOTWELL AREA WHEN MOVING SEAT(S): A clicking noise is heard from the rear footwell area when moving the seat. The clicking noise can occur under either the driver's seat and/or the passenger seat.
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.