{"nhtsa_id":10029304,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2009-07-06","date":"2009-04-01","document_id":"SI-B12-22-08","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL","mfr_system":null,"summary":"BMW: AS ORIGINALLY INSTALLED, THE DME PROGRAMMING MAY CAUSE THE OBD DIAGNOSTIC TO ERRONEOUSLY EVALUATE THE EFFICIENCY OF THE CATALYTIC CONVERTERS. MODEL E46 (M3) COUPE AND CONVERTIBLES. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10029304","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":"BMW","model":"M3","year_from":null,"year_to":null,"match":"exact","vehicle_ids":[]},{"make":"BMW","model":"M3","year_from":2001,"year_to":2005,"match":"exact","vehicle_ids":["2001_bmw_m3","2002_bmw_m3","2003_bmw_m3","2004_bmw_m3","2005_bmw_m3"]}],"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":[]}