January 2, 2024 Service bulletin

Customer states one of the front seats is inoperative

BMW technical service bulletin B521723 for 2023 BMW 3 Series, 2019-2024 BMW 330I and 2017-2022 BMW X1 and others.

Bulletin number: B521723
Component: Electrical system
Summary: Customer states one of the front seats is inoperative. The seat heater and power supply are inoperative. During the vehicle test, the seat module does not respond. The power supply fuse for the seat module isfound to have blown.

Owners of these vehicles have filed 113 complaints in the electrical category.

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