{"nhtsa_id":10119816,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-10-21","date":"2016-03-18","document_id":"A171670 2040644-","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)","mfr_system":null,"summary":"A metallic whistling or grinding sound is heard from the engine compartment when the vehicle is at idle speed. The sound usually occurs when the engine is warm. The MIL is sporadically on due to DTCs being stored in the ECM. A leak in the crankcase breather module can cause this condition.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10119816-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10119816-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10119816","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null},{"id":"pcv","name":"Crankcase ventilation (PCV)","parent":"exhaust-emissions"}],"codes":[],"topics":[],"vehicles":[{"make":"AUDI","model":"A6","year_from":2013,"year_to":2016,"match":"exact","vehicle_ids":["2013_audi_a6","2014_audi_a6","2015_audi_a6","2016_audi_a6"]},{"make":"AUDI","model":"A7","year_from":2013,"year_to":2016,"match":"exact","vehicle_ids":["2013_audi_a7","2014_audi_a7","2015_audi_a7","2016_audi_a7"]},{"make":"AUDI","model":"A8","year_from":2013,"year_to":2016,"match":"exact","vehicle_ids":["2013_audi_a8","2014_audi_a8","2015_audi_a8","2016_audi_a8"]}],"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":[]}