BMW 530I 2016–2018 — technical service bulletin
Bulletin B640118 · NHTSA communication 10135044 · issued Feb 1, 2018
Technical service bulletin
communication type
Equipment
component
2016–2018
model years
16
vehicle entries
Official summary
TEMPERATURE REGULATION OF AUTOMATIC CLIMATE CONTROL SYSTEM IS NOT ACCEPTABLE: Air distribution and/or temperature regulation variation exceeds design parameters.
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.