Mazda is recalling MX-5 Miatas from 2016 to deal with and underbody panel and related metal bracket that was improperly welded and could come lose while the vehicle is being driven.
Mazda has identified the culprit for the problem as improper maintenance of a weld contact pin on a spot friction welding machine, resulting in a weld that isn’t as strong as it should be.
Over time the weld could weaken substantially to allow the metal bracket holding the undercover in place to fall off. If the vehicle is being driven at the time, the metal bracket will present a road hazard.
Drivers will hear a metallic rattle noise as the market comes loose and falls away. Mazda is not aware of any incidents relating to the defect, which could affect 2,566 roadsters, of which 2,476 are in the US, and another 90 in Canada.