November 28, 2017
WASHINGTON, D.C. (November 28, 2017) – Mazda North American Operations filed a Part 573 with NHTSA regarding a safety concern with certain Model Year 2018 Mazda3 vehicles. In certain vehicles, an incorrect exhaust valve spring may have been installed in the cylinder head of the engine. Continuous use in this condition may lead to abnormal noise, vibration and MIL-illumination. In the worst case, the exhaust valve spring may break, resulting in engine stall and the vehicle cannot be restarted.
Approximately 144 vehicles are affected.
There have been no reports of loss of control, accidents, or injuries related to this condition.
Mazda North American Operations is headquartered in Irvine, California, and oversees the sales, marketing, parts and customer service support of Mazda vehicles in the United States and Mexico through nearly 600 dealers. Operations in Mexico are managed by Mazda Motor de Mexico in Mexico City. For more information on Mazda vehicles, including photography and B-roll, please visit the online Mazda media center at InsideMazda.MazdaUSA.com/Newsroom.
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Tamara Mlynarczyk, Mazda North American Operations, 202-467-5092
Jeremy Barnes, Mazda North American Operations, 949-727-6844