{"nhtsa_id":10148256,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-11-13","date":"2014-04-01","document_id":"121712","mfr_campaign":null,"replaces":null,"component":"ENGINE; POWER TRAIN","mfr_system":null,"summary":"N52T / N55 with 8HP45: Delay in Engine Response. A customer may complain of a delay in engine response after decelerating at low road speeds and then reaccelerating. This can occur when the transmission remains in a high gear due to a delay in the transmission downshifting. This situation can be more noticeable while driving on roads with slight turns or with an increasing gradient. Unfavorable EGS and DME software","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10148256-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10148256-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10148256","components":[{"id":"engine","name":"Engine","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BMW","model":"528I","year_from":2011,"year_to":2011,"match":"exact","vehicle_ids":["2011_bmw_528i"]},{"make":"BMW","model":"535I","year_from":2011,"year_to":2015,"match":"exact","vehicle_ids":["2011_bmw_535i","2012_bmw_535i","2013_bmw_535i","2014_bmw_535i","2015_bmw_535i"]},{"make":"BMW","model":"535I GRAN TURISMO","year_from":2010,"year_to":2012,"match":"base","vehicle_ids":["2010_bmw_535i","2011_bmw_535i","2012_bmw_535i"]},{"make":"BMW","model":"535I US","year_from":2011,"year_to":2011,"match":"base","vehicle_ids":["2011_bmw_535i"]},{"make":"BMW","model":"550I","year_from":2013,"year_to":2015,"match":"exact","vehicle_ids":["2013_bmw_550i","2014_bmw_550i","2015_bmw_550i"]},{"make":"BMW","model":"550I GRAN TURISMO","year_from":2010,"year_to":2012,"match":"base","vehicle_ids":["2010_bmw_550i","2011_bmw_550i","2012_bmw_550i"]},{"make":"BMW","model":"ACTIVE HYBRID 5","year_from":2012,"year_to":2013,"match":"exact","vehicle_ids":["2012_bmw_activehybrid-5","2013_bmw_activehybrid-5"]},{"make":"BMW","model":"X3","year_from":2011,"year_to":2012,"match":"exact","vehicle_ids":["2011_bmw_x3","2012_bmw_x3"]},{"make":"BMW","model":"X5","year_from":2007,"year_to":2013,"match":"exact","vehicle_ids":["2007_bmw_x5","2008_bmw_x5","2009_bmw_x5","2010_bmw_x5","2011_bmw_x5","2012_bmw_x5","2013_bmw_x5"]},{"make":"BMW","model":"X5 M","year_from":2010,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"BMW","model":"X6","year_from":2008,"year_to":2014,"match":"exact","vehicle_ids":["2008_bmw_x6","2009_bmw_x6","2010_bmw_x6","2011_bmw_x6","2012_bmw_x6","2013_bmw_x6","2014_bmw_x6"]},{"make":"BMW","model":"X6 M","year_from":2010,"year_to":2012,"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":[]}