If the A/C system in your third generation (2012, 2013, 2014, 2015 & 2016) Kia Rio hasn’t been working as well recently, or the air coming out of the vents smells a bit musty or moldy, you probably need to clean or change the cabin air filter element located in the HVAC blower motor housing.
2012-2016 Kia Rio Cabin Air Filter Replacement Guide
