{"nhtsa_id":606262,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1999-08-13","date":"1999-05-01","document_id":"620798","mfr_campaign":null,"replaces":"620798","component":"POWER TRAIN","mfr_system":null,"summary":"CERTAIN VEHICLES PRODUCED PRIOR TO OCTOBER 5, 1998, BMW CENTERS WILL INSTALL VOLTMETERS AT NO CHARGE TO THE CUSTOMER. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/606262","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BMW","model":"M COUPE","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"BMW","model":"M ROADSTER","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":[]}