{"nhtsa_id":10205408,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-12-20","date":"2021-10-06","document_id":"LI8270P072934","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT:ELECTRICAL:INFOTAINMENT:BLUETOOTH/WIFI","mfr_system":null,"summary":"The customer states that while making a phone call from inside the vehicle using a bluetooth-paired mobile device that the called party may hear an echo shortly after speaking. The intensity and duration of the echo may change through the length of the call.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10205408-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10205408-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10205408","components":[{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MERCEDES-BENZ","model":"MERCEDES-BENZ","year_from":null,"year_to":null,"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":[]}