BMW 230I 2023–2026 — technical service bulletin
Bulletin B120326 · NHTSA communication 11035396 · issued Jul 10, 2026
Technical service bulletin
communication type
Engine
component
2023–2026
model years
42
vehicle entries
Official summary
Due to an implementation error in various OBD diagnostics in the vehicle's control units, in very rare cases itmay happen that stored fault memory codes (DTCs) and the MIL (warning light) are not automaticallydeleted even though the underlying malfunction has already been rectified. This does not comply with the statutory OBD specifications.
Vehicles covered
- 2023 BMW 230I
- 2024 BMW 230I
- 2025 BMW 230I
- 2026 BMW 230I
- 2023 BMW 530I
- 2024 BMW 530I
- 2025 BMW 530I
- 2026 BMW 530I
- 2023 BMW 740I
- 2024 BMW 740I
- 2025 BMW 740I
- 2026 BMW 740I
- 2025 BMW M5
- 2026 BMW M5
- 2023 BMW X1
- 2024 BMW X1
- 2025 BMW X1
- 2026 BMW X1
- 2023 BMW X2
- 2024 BMW X2
- 2025 BMW X2
- 2026 BMW X2
- 2023 BMW X3
- 2024 BMW X3
- 2025 BMW X3
- 2026 BMW X3
- 2023 BMW X5
- 2024 BMW X5
- 2025 BMW X5
- 2026 BMW X5
- 2023 BMW X6
- 2024 BMW X6
- 2025 BMW X6
- 2026 BMW X6
- 2023 BMW X7
- 2024 BMW X7
- 2025 BMW X7
- 2026 BMW X7
- 2023 BMW XM
- 2024 BMW XM
- 2025 BMW XM
- 2026 BMW XM Label
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.