BMW 330I 2019 — technical service bulletin
Bulletin B121119 · NHTSA communication 10160332 · issued Apr 1, 2019
Technical service bulletin
communication type
Equipment
component
2019
model years
4
vehicle entries
Official summary
ERRONEOUS ELECTRIC FAN VOLTAGE FAULT STORED IN THE DME. The following faults are erroneously store in the Digital Motor Electronics (DME).
Vehicles covered
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.