BMW 330E 2017–2021 — technical service bulletin
Bulletin B110521 · NHTSA communication 10208176 · issued Jan 1, 2022
Technical service bulletin
communication type
Engine and Engine Cooling
component
2017–2021
model years
38
vehicle entries
Official summary
The belt pulley on the mechanical coolant pump may fracture allowing the engine drive belt to come off the coolant pump and alternator.
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
- 2020 BMW X6
- 2021 BMW X6
- 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.