BMW 330I 2016–2019 — technical service bulletin
Bulletin B651719 · NHTSA communication 10166391 · issued Sep 1, 2019
Technical service bulletin
communication type
Electrical System
component
2016–2019
model years
12
vehicle entries
Official summary
HU-H3 MGU HEAD UNIT DOES NOT START CID REMAINS BLACK: If the ignition is briefly switched off and without the vehicle entering sleep mode the MGU (Media Graphics Unit) head unit does not start The CID display remains black.
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.