BMW 330E 2017–2024 — technical service bulletin
Bulletin B521723 · NHTSA communication 10249023 · issued Jan 2, 2024
Technical service bulletin
communication type
Electrical System
component
2017–2024
model years
45
vehicle entries
Official 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.
Vehicles covered
- 2020 BMW 330E
- 2021 BMW 330E
- 2022 BMW 330E
- 2023 BMW 330E
- 2024 BMW 330E
- 2019 BMW 330I
- 2020 BMW 330I
- 2021 BMW 330I
- 2022 BMW 330I
- 2023 BMW 330I
- 2024 BMW 330I
- 2019 BMW 340I
- 2020 BMW 340I
- 2023 BMW 340I
- 2023 BMW 3 Series
- 2020 BMW 430I
- 2021 BMW 430I
- 2022 BMW 430I
- 2023 BMW 430I
- 2024 BMW 430I
- 2020 BMW 440I
- 2023 BMW 4 Series
- 2020 BMW 840I
- 2021 BMW 840I
- 2022 BMW 840I
- 2023 BMW 840I
- 2024 BMW 840I
- 2023 BMW 850I
- 2023 BMW 8 Series
- 2021 BMW M4
- 2022 BMW M4
- 2023 BMW M4
- 2024 BMW M4
- 2021 BMW M440I
- 2022 BMW M440I
- 2023 BMW M440I
- 2024 BMW M440I
- 2023 BMW M4 GT4
- 2017 BMW X1
- 2018 BMW X1
- 2019 BMW X1
- 2020 BMW X1
- 2021 BMW X1
- 2022 BMW X1
- 2017 BMW X1 Sav
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.