A small percentage of 2017–2021 Mazda CX‑5 models with certain engines have reported cooling‑system problems that can lead to overheating, coolant loss, or cylinder head cracks. Beware of coolant leaks. They are the most common causes of head gasket failure and cylinder head warping or cylinder head cracks.
What needs to be repaired or replaced?
Repairs may involve pressure‑testing the cooling system, replacing the cylinder head or head gasket as needed, and addressing related components such as coolant hoses, thermostat, and water pump. Our Mazda technicians can quickly identify why your Mazda CX-5 is overheating or losing coolant.