{"nhtsa_id":11031571,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-04-27","date":"2026-04-10","document_id":"B120526","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"A “knocking” sound from the fuel tank area can be heard in the passenger area. Occurrence information below. 1. The noise occurs when the engine is at idle 2. The noise occurs sporadically 3. The noise disappears when the fuel filler cap is opened 4. The noise also disappears when the tank ventilation valve is disconnected There is no relevant fault saved in the fault memory.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031571-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031571-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11031571","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BMW","model":"530I","year_from":2024,"year_to":2024,"match":"exact","vehicle_ids":["2024_bmw_530i"]},{"make":"BMW","model":"740I","year_from":2024,"year_to":2024,"match":"exact","vehicle_ids":["2024_bmw_740i"]}],"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":[]}