{"nhtsa_id":10147236,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-11-05","date":"2015-09-01","document_id":"B121514","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN; ENGINE","mfr_system":null,"summary":"This Service Information bulletin supersedes SI B12 15 14 dated August 2014. designates changes to this revision SUBJECT N55 with Double-Clutch Transmission: Idle Fluctuates when Stopped. A customer may complain that after coming to a stop, the engine speed intermittently fluctuates from about 500 RPM to 1,100 RPM. This situation can be more noticeable when the air conditioner is on. CAUSE DME software (idle control adaptation).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10147236-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10147236-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10147236","components":[{"id":"engine","name":"Engine","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BMW","model":"135I","year_from":2011,"year_to":2013,"match":"exact","vehicle_ids":["2011_bmw_135i","2012_bmw_135i","2013_bmw_135i"]},{"make":"BMW","model":"135I US","year_from":2011,"year_to":2011,"match":"base","vehicle_ids":["2011_bmw_135i"]}],"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":[]}