{"nhtsa_id":10171481,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-02-18","date":"2020-01-01","document_id":"B120120","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER","mfr_system":null,"summary":"FAULTS FOR TURBOCHARGER ELECTRIC WASTEGATE STORED IN THE DME. The engine malfunction warning (MIL) is illuminated and one of the following fault codes is stored in the DME. 123518 - electrical wastegate valve 2 wastegate valve: stiff movement And/or 120408 - charging pressure control: Switch-off as a secondary reaction CAUSE The DME has an adaptation error when calculating the setpoint values of the two electric wastegates.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10171481-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10171481-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10171481","components":[{"id":"engine","name":"Engine","parent":null},{"id":"turbocharger","name":"Turbocharger or supercharger","parent":"engine"}],"codes":[],"topics":[],"vehicles":[{"make":"BMW","model":"X3","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_bmw_x3"]},{"make":"BMW","model":"X4","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_bmw_x4"]}],"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":[]}