{"nhtsa_id":10146525,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-11-05","date":"2017-02-01","document_id":"B110117","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"?N63T AND S63T ENGINE: VALVE SEAL REPLACEMENT . This SI provides a new tool and a new procedure for the N63TU valve seals replacement. Please refer to the following applicable SIBs before replacing the valve seals. SI B11 07 11 - Turbocharger Failure: Oil Supply and Return Line Blockage and Proper Repairs SI B11 01 13 - N63 and N63TU Engines: Engine Oil Consumption, Engine Oil Top-ups and Refill Capacity SI B11 03 13 - Engine Oil Consumption (all models) SI B11 04 13 - N63TU Engine: Engine Oil Consumption If the valve seals are leaking, one of the following will help determine if the seals should be replaced. Smoke from the tailpipe when starting or aggressively accelerating and decelerating the engine Excessive engine oil consumption Spark plugs fouled with engine oil.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10146525-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10146525-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10146525","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BMW","model":"1 SERIES M","year_from":2012,"year_to":2013,"match":null,"vehicle_ids":[]},{"make":"BMW","model":"525D XDRIVE","year_from":2014,"year_to":2014,"match":null,"vehicle_ids":[]},{"make":"BMW","model":"528I","year_from":2013,"year_to":2016,"match":"exact","vehicle_ids":["2013_bmw_528i","2014_bmw_528i","2015_bmw_528i","2016_bmw_528i"]},{"make":"BMW","model":"535D","year_from":2014,"year_to":2016,"match":"exact","vehicle_ids":["2014_bmw_535d","2015_bmw_535d","2016_bmw_535d"]},{"make":"BMW","model":"535I","year_from":2013,"year_to":2017,"match":"exact","vehicle_ids":["2013_bmw_535i","2014_bmw_535i","2015_bmw_535i","2016_bmw_535i","2017_bmw_535i"]},{"make":"BMW","model":"535I GRAN TURISMO","year_from":2012,"year_to":2012,"match":"base","vehicle_ids":["2012_bmw_535i"]},{"make":"BMW","model":"550I","year_from":2013,"year_to":2017,"match":"exact","vehicle_ids":["2013_bmw_550i","2014_bmw_550i","2015_bmw_550i","2016_bmw_550i","2017_bmw_550i"]},{"make":"BMW","model":"550I GRAN TURISMO","year_from":2012,"year_to":2012,"match":"base","vehicle_ids":["2012_bmw_550i"]},{"make":"BMW","model":"640I","year_from":2012,"year_to":2017,"match":"exact","vehicle_ids":["2012_bmw_640i","2013_bmw_640i","2014_bmw_640i","2015_bmw_640i","2016_bmw_640i","2017_bmw_640i"]},{"make":"BMW","model":"650I","year_from":2012,"year_to":2017,"match":"exact","vehicle_ids":["2012_bmw_650i","2013_bmw_650i","2014_bmw_650i","2015_bmw_650i","2016_bmw_650i","2017_bmw_650i"]},{"make":"BMW","model":"740I","year_from":2012,"year_to":2015,"match":"exact","vehicle_ids":["2012_bmw_740i","2013_bmw_740i","2014_bmw_740i","2015_bmw_740i"]},{"make":"BMW","model":"740LD","year_from":2015,"year_to":2015,"match":null,"vehicle_ids":[]},{"make":"BMW","model":"740LI","year_from":2012,"year_to":2015,"match":"exact","vehicle_ids":["2012_bmw_740li","2013_bmw_740li","2014_bmw_740li","2015_bmw_740li"]},{"make":"BMW","model":"750I","year_from":2012,"year_to":2015,"match":"exact","vehicle_ids":["2012_bmw_750i","2013_bmw_750i","2014_bmw_750i","2015_bmw_750i"]},{"make":"BMW","model":"750LI","year_from":2012,"year_to":2015,"match":"exact","vehicle_ids":["2012_bmw_750li","2013_bmw_750li","2014_bmw_750li","2015_bmw_750li"]},{"make":"BMW","model":"760LI","year_from":2012,"year_to":2012,"match":"exact","vehicle_ids":["2012_bmw_760li"]},{"make":"BMW","model":"760LI","year_from":2014,"year_to":2015,"match":"exact","vehicle_ids":["2014_bmw_760li","2015_bmw_760li"]},{"make":"BMW","model":"ACTIVE HYBRID 3","year_from":2015,"year_to":2015,"match":"exact","vehicle_ids":["2015_bmw_activehybrid-3"]},{"make":"BMW","model":"ACTIVE HYBRID 5","year_from":2013,"year_to":2013,"match":"exact","vehicle_ids":["2013_bmw_activehybrid-5"]},{"make":"BMW","model":"ACTIVE HYBRID 7","year_from":2012,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"BMW","model":"ACTIVE HYBRID 7","year_from":2014,"year_to":2014,"match":"exact","vehicle_ids":["2014_bmw_activehybrid-7"]},{"make":"BMW","model":"M5","year_from":2013,"year_to":2016,"match":"exact","vehicle_ids":["2013_bmw_m5","2014_bmw_m5","2015_bmw_m5","2016_bmw_m5"]},{"make":"BMW","model":"M6","year_from":2013,"year_to":2017,"match":"exact","vehicle_ids":["2013_bmw_m6","2014_bmw_m6","2015_bmw_m6","2016_bmw_m6","2017_bmw_m6"]},{"make":"BMW","model":"X5","year_from":2014,"year_to":2017,"match":"exact","vehicle_ids":["2014_bmw_x5","2015_bmw_x5","2016_bmw_x5","2017_bmw_x5"]},{"make":"BMW","model":"X6","year_from":2015,"year_to":2017,"match":"exact","vehicle_ids":["2015_bmw_x6","2016_bmw_x6","2017_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":[]}