Technical Service Bulletin B120418 — 2017 BMW 430I
ENGINE AND ENGINE COOLING
Bulletin Details
| TSB ID | B120418 |
| Manufacturer | |
| Vehicle | 2017 BMW 430I |
| Component | ENGINE AND ENGINE COOLING |
| Communication Date |
Bulletin Summary
BUZZING NOISE FROM VALVETRONIC MOTOR BEFORE: Buzzing noise may be heard from the Valvetronic motor when the vehicle is unlocked, before the engine is started, or after the engine is turned off.
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.