{"nhtsa_id":10150032,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-12-03","date":"2013-07-01","document_id":"120412","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"N55: Idle Fluctuates Briefly After a Cold Engine Start. Under certain engine cold starts, the engine idle may fluctuate during the first 10-20 seconds of operation before becoming stable. No faults will be stored in this situation, which will usually only occur at specific engine temperatures, making it difficult to reproduce in the workshop. Unfavorable DME software calibration","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2013/MC-10150032-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2013/MC-10150032-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10150032","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"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 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":"640I","year_from":2012,"year_to":2014,"match":"exact","vehicle_ids":["2012_bmw_640i","2013_bmw_640i","2014_bmw_640i"]},{"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":2013,"match":"exact","vehicle_ids":["2011_bmw_x3","2012_bmw_x3","2013_bmw_x3"]},{"make":"BMW","model":"X5","year_from":2011,"year_to":2013,"match":"exact","vehicle_ids":["2011_bmw_x5","2012_bmw_x5","2013_bmw_x5"]},{"make":"BMW","model":"X6","year_from":2011,"year_to":2014,"match":"exact","vehicle_ids":["2011_bmw_x6","2012_bmw_x6","2013_bmw_x6","2014_bmw_x6"]}],"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":[]}