Ford Focus 2015–2018 — technical service bulletin
Bulletin TSB18-2093 · NHTSA communication 10137073 · issued Mar 21, 2018
Technical service bulletin
communication type
Engine and Engine Cooling
component
2015–2018
model years
4
vehicle entries
Official summary
Some 2015-2018 Focus ST vehicles may exhibit a misfire condition and/or illuminated MIL with DTCs P0300 and/or P0316 with engine coolant temperature below 49°C (120°F). Follow the Service Procedure steps to correct the condition.
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.