Technical Service Bulletin B640121 — 2019 BMW X4
ENGINE
Bulletin Details
| TSB ID | B640121 |
| Manufacturer | |
| Vehicle | 2019 BMW X4 |
| Component | ENGINE |
| Communication Date |
Bulletin Summary
WHISTLING NOISE COMING FROM FRESH AIR INLET (ENGINE COMPARTMENT): A whistling noise is present from the fresh air inlet area (engine compartment bulkhead area), in the right front area of the vehicle, at speeds above 40 mph.
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.