2016 2018 2019 2020 Mazda MX-5 Miata A/C Cooler Pipe. Some vehicles may experience that the A/C does not blow cold air (blows warm air) due to a refrigerant leak. This is caused by a crack in the cooler pipe (HI) A (1) due to engine vibration. To correct this issue, the material and thickness of the cooler pipe (HI) A has been changed to increase durability.
2016-2018 MX-5 with VINs lower than JM1ND******(built before )