{"nhtsa_id":10145304,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-10-09","date":"2018-06-01","document_id":"B640518","mfr_campaign":null,"replaces":null,"component":"VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:FAN/MOTOR","mfr_system":null,"summary":"EXCESS NOISE WHEN DEFROST BLOWER IS AT MAX: Loud, rushing, wind noise is heard from ventilation outlets, as shown in video, https://tinyurl.com/V640418 when defroster blower is set at maximum speed.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10145304-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10145304-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10145304","components":[{"id":"visibility","name":"Glass, wipers and mirrors","parent":null},{"id":"hvac","name":"Heating and air conditioning","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BMW","model":"X3","year_from":2018,"year_to":2018,"match":"exact","vehicle_ids":["2018_bmw_x3"]},{"make":"BMW","model":"X4","year_from":2018,"year_to":2018,"match":"exact","vehicle_ids":["2018_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":[]}