BMW 530E 2016–2020 — technical service bulletin
Bulletin B121619 · NHTSA communication 10175269 · issued Apr 1, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2016–2020
model years
49
vehicle entries
Official summary
ERRONEOUS ELECTRIC FAN FUNCTION FAULT STORED IN THE DME: The following faults may be erroneously stored in the Digital Motor Electronics (DME): Fault code: Control module: Fault code text: 1A2806 DME Electric fan function: limited operation 1A4007 DME Electric fan function: Operating mode implausible And: There is no customer-facing vehicle symptom(s) or related check control message displayed. A software error may cause these faults to be erroneously stored in the Digital Motor Electronics (DME).
Vehicles covered
- 2018 BMW 530E
- 2019 BMW 530E
- 2020 BMW 530E
- 2017 BMW 530I
- 2018 BMW 530I
- 2019 BMW 530I
- 2020 BMW 530I
- 2018 BMW 540D
- 2019 BMW 540D
- 2020 BMW 540D
- 2017 BMW 540I
- 2018 BMW 540I
- 2019 BMW 540I
- 2020 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
- 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
- 2018 BMW B7 Alpina
- 2019 BMW B7 Alpina
- 2020 BMW B7 Alpina
- 2017 BMW M550I
- 2018 BMW M550I
- 2019 BMW M550I
- 2020 BMW M550I
- 2017 BMW M760I
- 2018 BMW M760I
- 2019 BMW M760I
- 2020 BMW M760I
- 2018 BMW X3
- 2019 BMW X3
- 2020 BMW X3
- 2019 BMW X4
- 2020 BMW X4
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.