BMW X3 2018–2022 — technical service bulletin
Bulletin SIB170122 · NHTSA communication 10215751 · issued May 1, 2022
Technical service bulletin
communication type
Equipment
component
2018–2022
model years
20
vehicle entries
Official summary
The Check Control message below appears even though the coolant level is not below minimum when the engine is cold. Check Control message (ID 166): Top up coolant.
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.