{"nhtsa_id":10170098,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-07-28","date":"2015-01-01","document_id":"2038952/1","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING; POWER TRAIN; ELECTRICAL SYSTEM","mfr_system":null,"summary":"Mulsanne engine and transmission control module software update (SC15/01) Technical background: Customer may experience powertrain clunk feeling when driving at low load. Investigations found that improvements in the modelled auxiliary torque drag would remove the clunk sensation, Remedy The improved modelled auxiliary torque drag calibration for Mulsanne must be applied by performing this campaign process.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10170098-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10170098-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10170098","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BENTLEY","model":"MULSANNE","year_from":2011,"year_to":2015,"match":"exact","vehicle_ids":["2011_bentley_mulsanne","2012_bentley_mulsanne","2013_bentley_mulsanne","2014_bentley_mulsanne","2015_bentley_mulsanne"]}],"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":[]}