NHTSA complaint #11749139

Owner complaint summary

I am the owner of a 2019 Mazda CX-5 with approximately 50,000 miles. I am experiencing an active engine oil leak accompanied by a burning smell and visible smoke from the engine compartment. This is consistent with a cracked cylinder head assembly — a known manufacturing defect in 2018–2021 Mazda CX-5 vehicles documented in Mazda's own Service Alert SA-031/21, which Mazda characterizes as a fire hazard. Despite this, Mazda has extended warranty coverage only to turbo-equipped models (Program CSP11), leaving non-turbo owners with the identical defect unprotected. At only 50,000 miles, this is a premature failure caused by a manufacturing defect — not normal wear and tear. Oil leaking onto a hot exhaust manifold constitutes a serious fire risk to vehicle occupants and the public. I am requesting that NHTSA investigate this pattern of failure across 2018–2021 Mazda CX-5 non-turbo models and consider whether a formal recall is warranted. I have contacted Mazda North American Operations directly requesting goodwill warranty coverage and have a case number on file. I have yet to hear a response but was initially informed my car was out of warranty.