{"nhtsa_id":10221974,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-09-26","date":"2021-07-31","document_id":"01131720348711","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Hydrocarbons form carbon deposits when low-quality fuel is combined with a short distance driving cycle. The carbon deposits interrupt tumble for efficient fuel/air mixture, which causes cold start misfire.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10221974-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10221974-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10221974","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"AUDI","model":"S5","year_from":2008,"year_to":2009,"match":"exact","vehicle_ids":["2008_audi_s5","2009_audi_s5"]}],"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":[]}