{"nhtsa_id":11019161,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-06-05","date":"2025-05-21","document_id":"SA-026-25","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER; ENGINE","mfr_system":"Cooling System","summary":"Instances of coolant leakage have been observed from the EGR bypass hose during maintenance. These issues are typically caused by improper assembly rather than defects in the parts themselves. The pipe includes a brazed R-section (see photo on bottom right). If the hose is installed by pressing it against this R-section, the clamp can shift upward, reducing clamping force and potentially leading to a coolant leak. This Service Alert outlines the correct procedure for assembling the EGR bypass hose and the inspection steps to follow when a coolant leak is detected.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11019161-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11019161-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11019161","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MAZDA","model":"CX-5","year_from":2017,"year_to":2019,"match":"exact","vehicle_ids":["2017_mazda_cx-5","2018_mazda_cx-5","2019_mazda_cx-5"]}],"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":[]}