{"nhtsa_id":10194314,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-05-24","date":"2021-04-01","document_id":"MC110621","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; EQUIPMENT ADAPTIVE/MOBILITY","mfr_system":null,"summary":"Ticking noises emanating from the cylinder head.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10194314-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10194314-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10194314","components":[{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null},{"id":"exhaust-pipe","name":"Exhaust manifold, pipes and muffler","parent":"exhaust-emissions"}],"codes":[],"topics":[],"vehicles":[{"make":"BMW","model":"750","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"BMW","model":"850","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"BMW","model":"E 31 SERIES","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"BMW","model":"R 1200 C","year_from":null,"year_to":null,"match":"exact","vehicle_ids":[]},{"make":"BMW","model":"R SERIES","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":[]}