BMW i3 2014–2017 — technical service bulletin
Bulletin B170416 · NHTSA communication 10146819 · issued Sep 1, 2016
Technical service bulletin
communication type
Engine and Engine Cooling
component
2014–2017
model years
4
vehicle entries
Official summary
"CHECK CONTROL MESSAGE: ""DRIVETRAIN: ONLY ELECTRIC DRIVE POSSIBLE"". The Service Engine Soon light is on. Check Control Message (CCM): ""DRIVETRAIN: only electric drive possible, limited driving range, continued driving possible, consult nearest service center"" is displayed. Leaking coolant expansion tank."
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.