BMW 330E 2017–2021 — technical service bulletin
Bulletin SIB 61 01 21 · NHTSA communication 10202468 · issued Jul 1, 2021
Technical service bulletin
communication type
Electrical System
component
2017–2021
model years
36
vehicle entries
Official summary
48 V battery may become totally discharged, and possible replacement needed if: a) The vehicle has been charged using a 12 V charger with the hood closed during a long stationary period, the. For example, the showroom or storage. b) Vehicles stored for an extended period connected to a low output solar or trickle charger. c) Vehicles stored for an extended period with no charger connected and not properly maintained 12 V battery.
Vehicles covered
- 2021 BMW 330E
- 2019 BMW 330I
- 2020 BMW 330I
- 2021 BMW 330I
- 2021 BMW 430I
- 2018 BMW 530E
- 2019 BMW 530E
- 2020 BMW 530E
- 2021 BMW 530E
- 2017 BMW 530I
- 2018 BMW 530I
- 2019 BMW 530I
- 2020 BMW 530I
- 2021 BMW 530I
- 2018 BMW 540D
- 2019 BMW 540D
- 2020 BMW 540D
- 2017 BMW 540I
- 2018 BMW 540I
- 2019 BMW 540I
- 2020 BMW 540I
- 2021 BMW 540I
- 2020 BMW M340I
- 2021 BMW M340I
- 2021 BMW M440I
- 2017 BMW M550I
- 2018 BMW M550I
- 2019 BMW M550I
- 2020 BMW M550I
- 2021 BMW M550I
- 2019 BMW X5
- 2020 BMW X5
- 2021 BMW X5
- 2019 BMW X7
- 2020 BMW X7
- 2021 BMW X7
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.