If the A/C system in your third generation (2014, 2015, 2016, 2017 & 2018) Mazda 6 sedan hasn’t been working well recently, you probably need to clean or replace the cabin air filter element in the HVAC blower motor housing. Check out my DIY instructions for the procedure (with the compatible replacement filter part numbers) by clicking on the text link or thumbnail image below.
Mazda Mazda6 Cabin Air Filter Replacement Guide
