{"nhtsa_id":10009876,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2004-11-02","date":"2004-08-26","document_id":"0420","mfr_campaign":null,"replaces":"0431","component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"OIL SLUDGE - WARRANTY EXTENSION. SERVICE CIRCULAR - WARRANTY. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10009876","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"AUDI","model":"A4","year_from":1997,"year_to":2004,"match":"exact","vehicle_ids":["1997_audi_a4","1998_audi_a4","1999_audi_a4","2000_audi_a4","2001_audi_a4","2002_audi_a4","2003_audi_a4","2004_audi_a4"]}],"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":[]}