BMW 228I 2012–2021 — technical service bulletin
Bulletin B170121 · NHTSA communication 10214256 · issued Feb 1, 2022
Technical service bulletin
communication type
Engine and Engine Cooling
component
2012–2021
model years
60
vehicle entries
Official summary
The quick disconnect coupling on the cylinder head coolant vent line could break at the cylinder head. This would lead to loss of coolant from the engine.
Vehicles covered
- 2014 BMW 228I
- 2015 BMW 228I
- 2016 BMW 228I
- 2017 BMW 230I
- 2018 BMW 230I
- 2019 BMW 230I
- 2020 BMW 230I
- 2021 BMW 230I
- 2013 BMW 320I
- 2014 BMW 320I
- 2015 BMW 320I
- 2016 BMW 320I
- 2017 BMW 320I
- 2018 BMW 320I
- 2014 BMW 328D
- 2015 BMW 328D
- 2016 BMW 328D
- 2017 BMW 328D
- 2018 BMW 328D
- 2012 BMW 328I
- 2013 BMW 328I
- 2014 BMW 328I
- 2015 BMW 328I
- 2016 BMW 328I
- 2016 BMW 330E
- 2017 BMW 330E
- 2018 BMW 330E
- 2017 BMW 330I
- 2018 BMW 330I
- 2019 BMW 330I
- 2020 BMW 330I
- 2012 BMW 335I
- 2013 BMW 335I
- 2014 BMW 335I
- 2015 BMW 335I
- 2016 BMW 335I
- 2017 BMW 335I
- 2016 BMW 340I
- 2017 BMW 340I
- 2018 BMW 340I
- 2019 BMW 340I
- 2020 BMW 340I
- 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
- 2017 BMW 530E
- 2018 BMW 530E
- 2017 BMW 530I
- 2018 BMW 530I
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.