{"nhtsa_id":604628,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1999-05-07","date":"1999-02-01","document_id":"651998","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.","mfr_system":null,"summary":"SUBJECT PERTAINING TO DSP AMPLIFIER SWITCHING TO","document":null,"url":"https://open.wenmarpro.com/bulletins/604628","components":[{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BMW","model":"528I","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_bmw_528i"]},{"make":"BMW","model":"528IA","year_from":1998,"year_to":1998,"match":"base","vehicle_ids":["1998_bmw_528i"]},{"make":"BMW","model":"540I","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_bmw_540i"]},{"make":"BMW","model":"540IA","year_from":1998,"year_to":1998,"match":"base","vehicle_ids":["1998_bmw_540i"]},{"make":"BMW","model":"740IA","year_from":1998,"year_to":1998,"match":"base","vehicle_ids":["1998_bmw_740i"]},{"make":"BMW","model":"740ILA","year_from":1998,"year_to":1998,"match":"base","vehicle_ids":["1998_bmw_740il"]},{"make":"BMW","model":"750IL","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_bmw_750il"]}],"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":[]}