{"nhtsa_id":10169855,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-01-07","date":"2019-12-05","document_id":"WUK-96","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Subaru of America, Inc. (Subaru) is initiating a service campaign for certain 2015-2018 Forester 2.0L Turbo and 2016-2018 WRX models which may experience a loosening of the front exhaust pipe nuts. On certain affected vehicles, the six (6) front exhaust pipe (EPF) nuts at the cylinder heads may not have been tightened sufficiently due to variations in production. As a result, these nuts may become loose during use and cause exhaust leakage. A leak occurring at the front exhaust pipe may result in deterioration of emission performance. As a result, affected vehicle may fail to meet emission levels certified by the EPA and/or California ARB.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10169855-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10169855-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10169855","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"SUBARU","model":"FORESTER","year_from":2015,"year_to":2018,"match":"exact","vehicle_ids":["2015_subaru_forester","2016_subaru_forester","2017_subaru_forester","2018_subaru_forester"]},{"make":"SUBARU","model":"WRX","year_from":2016,"year_to":2018,"match":"exact","vehicle_ids":["2016_subaru_wrx","2017_subaru_wrx","2018_subaru_wrx"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}