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February 1, 2018 Service bulletin

Buzzing noise from valvetronic motor before

BMW technical service bulletin B120418 for 2017 BMW 330I, 2016 BMW X1 and 2017 BMW 530I and others.

Bulletin number
B120418
Component
Engine and engine cooling
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.

Owners of these vehicles have filed 72 complaints in the engine category.

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