{"nhtsa_id":10138345,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-05-21","date":"2018-03-08","document_id":"Circular - Emiss","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR","mfr_system":null,"summary":"Over time and mileage and under certain conditions, the factory-installed catalysts may not perform as required by Federal regulations. If the effectiveness of a catalyst is reduced, this may result in an increase in tailpipe emissions and the vehicle could fail to pass an emissions inspection. Updated exhaust clamp part number to reference ETKA","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10138345-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10138345-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10138345","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null},{"id":"catalytic-converter","name":"Catalytic converter","parent":"exhaust-emissions"}],"codes":[],"topics":[],"vehicles":[{"make":"AUDI","model":"A6","year_from":2008,"year_to":2011,"match":"exact","vehicle_ids":["2008_audi_a6","2009_audi_a6","2010_audi_a6","2011_audi_a6"]},{"make":"AUDI","model":"A8","year_from":2008,"year_to":2008,"match":"exact","vehicle_ids":["2008_audi_a8"]},{"make":"AUDI","model":"S5","year_from":2008,"year_to":2009,"match":"exact","vehicle_ids":["2008_audi_s5","2009_audi_s5"]},{"make":"AUDI","model":"S5 CABRIOLET","year_from":2010,"year_to":2010,"match":null,"vehicle_ids":[]}],"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":[]}