{"nhtsa_id":613550,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2000-07-21","date":"2000-05-01","document_id":"060500","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"CUSTOMERS MAY COMPLAIN THAT THE COOLANT TEMPERATURE GAUGE GOES IN AND OUT OF THE RED ZONE OR THAT THE HEATER OUTPUT IS TOO LOW ON VEHICLES WITH M52TU ENGINES PRODUCED FROM 9/98. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/613550","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BMW","model":"E39 SERIES","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"BMW","model":"E46 SERIES","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"BMW","model":"Z3","year_from":null,"year_to":null,"match":"exact","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":[]}