{"nhtsa_id":10205999,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-01-06","date":"2021-12-02","document_id":"01-013-21-3753a","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Coolant Leaks At Cylinder Head: Some vehicles may have coolant leaks at the cylinder head around the exhaust manifold (as shown below). There may be cracks at the stud bolt hole (1) or at the outside of the exhaust manifold (2).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10205999-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10205999-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10205999","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MAZDA","model":"CX-5","year_from":2019,"year_to":2020,"match":"exact","vehicle_ids":["2019_mazda_cx-5","2020_mazda_cx-5"]},{"make":"MAZDA","model":"CX-9","year_from":2016,"year_to":2020,"match":"exact","vehicle_ids":["2016_mazda_cx-9","2017_mazda_cx-9","2018_mazda_cx-9","2019_mazda_cx-9","2020_mazda_cx-9"]},{"make":"MAZDA","model":"MAZDA6","year_from":2018,"year_to":2020,"match":"exact","vehicle_ids":["2018_mazda_mazda6","2019_mazda_mazda6","2020_mazda_mazda6"]}],"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":[]}