Subaru Forester 2014–2017 — technical service bulletin
Bulletin 02-173-18 · NHTSA communication 10140480 · issued Feb 6, 2018
Technical service bulletin
communication type
Engine and Engine Cooling
component
2014–2017
model years
7
vehicle entries
Official summary
2.0L Turbo Models only. This bulletin announces availability of a special turbocharger air intake duct designed to prevent EXTREMELY RARE occurrence of ice formation from condensation in the duct?s PCV system passages.
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.