{"nhtsa_id":10169124,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-01-08","date":"2019-12-10","document_id":"Circular 23Ai","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; ENGINE","mfr_system":null,"summary":"This action addresses an emissions system-related Engine-Off calculation error and improves the Oxygen Sensor Aging-Correction Factor. Neither concern has a direct impact to vehicle exhaust or evaporative emissions. However, either condition could affect proper operation of the Malfunction Indicator Lamp (MIL). 2017-2018 A3 Cabriolet","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10169124-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10169124-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10169124","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"AUDI","model":"A3","year_from":2017,"year_to":2018,"match":"exact","vehicle_ids":["2017_audi_a3","2018_audi_a3"]},{"make":"AUDI","model":"A4","year_from":2017,"year_to":2018,"match":"exact","vehicle_ids":["2017_audi_a4","2018_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":[]}