{"nhtsa_id":10147928,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-11-13","date":"2014-01-01","document_id":"160313","mfr_campaign":null,"replaces":null,"component":"FUEL SYSTEM, OTHER:DELIVERY; ENGINE","mfr_system":null,"summary":"N52K, N54 and N20 Engine - Noise from Fuel Tank. The customer complains of a noise from the underside rear portion of the vehicle. When diagnosed the noise is coming from the fuel tank. CAUSE A manufacturing defect inside the electric fuel delivery unit (in-tank fuel pump) pressure limiting valve will result in a noise while driving. This defect will not lead to fuel pump failure or loss of power.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10147928-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10147928-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10147928","components":[{"id":"engine","name":"Engine","parent":null},{"id":"fuel-system","name":"Fuel system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BMW","model":"Z4","year_from":2009,"year_to":2014,"match":"exact","vehicle_ids":["2009_bmw_z4","2010_bmw_z4","2011_bmw_z4","2012_bmw_z4","2013_bmw_z4","2014_bmw_z4"]}],"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":[]}