{"nhtsa_id":10166986,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-11-04","date":"2014-02-06","document_id":"LI27.60-P-058283","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"Reverse gear cannot be engaged. The following fault code is stored in the dual clutch transmission (DKG) control unit: FC 074600 -> Pressure regulating valve 1 does not close or FC 077600 -> Pressure regulating valve 1 does not close In the extended fault freeze frame data it can be seen that both clutches are pressurized when the fault code 074600 or 077600 occurs - see Figure 1 in attachment.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10166986-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10166986-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10166986","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MERCEDES BENZ","model":"B-CLASS ELECTRIC","year_from":2014,"year_to":2016,"match":"base","vehicle_ids":["2014_mercedes-benz_b-class","2015_mercedes-benz_b-class","2016_mercedes-benz_b-class"]},{"make":"MERCEDES-BENZ","model":"B 180","year_from":2019,"year_to":2019,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"B 200","year_from":2019,"year_to":2019,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"B 220","year_from":2019,"year_to":2019,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"B 250E","year_from":2014,"year_to":2017,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"B242","year_from":2011,"year_to":2013,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"B246","year_from":2011,"year_to":2013,"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":[]}