{"nhtsa_id":10248173,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-01-03","date":"2023-12-11","document_id":"NCU-2023060005","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM","mfr_system":null,"summary":"Mercedes-Benz AG (\"MBAG\"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2009-2012 GL-Class, ML-Class, R-Class, and S-Class (164/166, 251, 221 platforms) vehicles, the coding for the engine control unit does not correspond to the specifications as part of the “BlueTEC update” diesel field measure (aka “Emission Modification”). This could result in the VIN number not being read out from the vehicle. This could affect the vehicle smog check. MBUSA will conduct an Emission Service Campaign in which an authorized Mercedes-Benz dealer will update the SCN coding for the engine control unit on the affected vehicles.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10248173-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10248173-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10248173","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MERCEDES BENZ","model":"GL320","year_from":2009,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"MERCEDES BENZ","model":"GL350","year_from":2009,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"MERCEDES BENZ","model":"GL450","year_from":2009,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"MERCEDES BENZ","model":"GL550","year_from":2009,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"MERCEDES BENZ","model":"ML320","year_from":2009,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"MERCEDES BENZ","model":"ML350","year_from":2009,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"MERCEDES BENZ","model":"ML500","year_from":2009,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"MERCEDES BENZ","model":"ML550","year_from":2009,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"MERCEDES BENZ","model":"ML63","year_from":2009,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"MERCEDES BENZ","model":"R320","year_from":2009,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"MERCEDES BENZ","model":"R500","year_from":2009,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"MERCEDES BENZ","model":"R63","year_from":2009,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"MERCEDES BENZ","model":"S600","year_from":2009,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"MERCEDES BENZ","model":"S63","year_from":2009,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"MERCEDES BENZ","model":"S65","year_from":2009,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG ML63","year_from":2009,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GL320","year_from":2010,"year_to":2011,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GL350","year_from":2010,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GL450","year_from":2010,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GL550","year_from":2010,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"ML320","year_from":2010,"year_to":2011,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"ML350","year_from":2010,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"ML450","year_from":2010,"year_to":2011,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"ML500","year_from":2010,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"ML550","year_from":2010,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"ML63","year_from":2010,"year_to":2011,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"R320","year_from":2010,"year_to":2010,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"R350","year_from":2009,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"S350","year_from":2012,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"S400","year_from":2010,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"S550","year_from":2010,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"S600","year_from":2010,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"S63","year_from":2010,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"S65","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":[]}