BMW 228I 2014–2021 — technical service bulletin
Bulletin B520121 · NHTSA communication 10200234 · issued Jun 1, 2021
Technical service bulletin
communication type
Equipment Adaptive/mobility
component
2014–2021
model years
60
vehicle entries
Official summary
Front seat will not calibrate/initialize, and the stored faults cannot be deleted
Vehicles covered
- 2020 BMW 228I
- 2021 BMW 228I
- 2014 BMW 428I
- 2015 BMW 428I
- 2016 BMW 428I
- 2017 BMW 430I
- 2018 BMW 430I
- 2019 BMW 430I
- 2020 BMW 430I
- 2014 BMW 435I
- 2015 BMW 435I
- 2016 BMW 435I
- 2017 BMW 440I
- 2018 BMW 440I
- 2019 BMW 440I
- 2020 BMW 440I
- 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
- 2018 BMW 640I
- 2019 BMW 640I
- 2020 BMW 640I
- 2017 BMW 740E
- 2018 BMW 740E
- 2019 BMW 740E
- 2017 BMW 740I
- 2018 BMW 740I
- 2019 BMW 740I
- 2020 BMW 740I
- 2021 BMW 740I
- 2016 BMW 740LI
- 2017 BMW 740LI
- 2020 BMW 745E
- 2018 BMW 750I
- 2019 BMW 750I
- 2016 BMW 750LI
- 2017 BMW 750LI
- 2018 BMW 750LI
- 2019 BMW 750LI
- 2021 BMW 750LI
- 2018 BMW B7 Alpina
- 2019 BMW B7 Alpina
- 2020 BMW B7 Alpina
- 2021 BMW B7 Alpina
- 2018 BMW C 400 X
- 2017 BMW F800 R
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.