{"nhtsa_id":10051580,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2013-03-20","date":"2012-10-22","document_id":"US-35742107","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS","mfr_system":null,"summary":"BMW MC: DUE TO DEFECT AT TIME OF MANUFACTURING, THE EXPANSION TANK AND EXPANSION TANK BREATHER CAP, IS ALLOWING COOLANT TO ESCAPE. E SERIES (K71, K73/02). NO MODEL YEARS LISTED. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10051580","components":[{"id":"engine","name":"Engine","parent":null},{"id":"cooling-system","name":"Cooling system","parent":"engine"}],"codes":[],"topics":[],"vehicles":[{"make":"BMW","model":"BMW MOTORCYCLE","year_from":null,"year_to":null,"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":[]}