{"nhtsa_id":10149293,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-11-26","date":"2013-01-01","document_id":"111012","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"?N20 Engine: Repeated Juddering or Surging While Accelerating. The vehicle judders or surges repeatedly while accelerating in hot ambient temperatures between 3,000 RPM and 5,000 RPM. The Service Engine Soon lamp is not illuminated, and no fault codes are stored in the vehicle memory related to this complaint. CAUSE The EPDW (electropneumatic pressure convertor) for the turbocharger wastegate valve is binding internally.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2013/MC-10149293-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2013/MC-10149293-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10149293","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BMW","model":"320I","year_from":2013,"year_to":2014,"match":"exact","vehicle_ids":["2013_bmw_320i","2014_bmw_320i"]},{"make":"BMW","model":"328D","year_from":2014,"year_to":2014,"match":"exact","vehicle_ids":["2014_bmw_328d"]},{"make":"BMW","model":"328I","year_from":2012,"year_to":2014,"match":"exact","vehicle_ids":["2012_bmw_328i","2013_bmw_328i","2014_bmw_328i"]},{"make":"BMW","model":"335I","year_from":2012,"year_to":2014,"match":"exact","vehicle_ids":["2012_bmw_335i","2013_bmw_335i","2014_bmw_335i"]},{"make":"BMW","model":"525D XDRIVE","year_from":2014,"year_to":2014,"match":null,"vehicle_ids":[]},{"make":"BMW","model":"528I","year_from":2011,"year_to":2014,"match":"exact","vehicle_ids":["2011_bmw_528i","2012_bmw_528i","2013_bmw_528i","2014_bmw_528i"]},{"make":"BMW","model":"535D","year_from":2014,"year_to":2014,"match":"exact","vehicle_ids":["2014_bmw_535d"]},{"make":"BMW","model":"535I","year_from":2011,"year_to":2014,"match":"exact","vehicle_ids":["2011_bmw_535i","2012_bmw_535i","2013_bmw_535i","2014_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":2011,"year_to":2014,"match":"exact","vehicle_ids":["2011_bmw_550i","2012_bmw_550i","2013_bmw_550i","2014_bmw_550i"]},{"make":"BMW","model":"ACTIVE HYBRID 3","year_from":2013,"year_to":2013,"match":null,"vehicle_ids":[]},{"make":"BMW","model":"ACTIVE HYBRID 3","year_from":2014,"year_to":2014,"match":"exact","vehicle_ids":["2014_bmw_activehybrid-3"]},{"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":"M5","year_from":2013,"year_to":2014,"match":"exact","vehicle_ids":["2013_bmw_m5","2014_bmw_m5"]},{"make":"BMW","model":"X1 SAV","year_from":2012,"year_to":2014,"match":null,"vehicle_ids":[]},{"make":"BMW","model":"X3","year_from":2011,"year_to":2014,"match":"exact","vehicle_ids":["2011_bmw_x3","2012_bmw_x3","2013_bmw_x3","2014_bmw_x3"]},{"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":[]}