How to Replace the Cabin Air Filter in a Classic Focus?

[FinleyLynn]

Method for replacing the cabin air filter in a Classic Focus: 1. Pinch the two yellow clips and twist them downward; when reinstalling, simply press them back into place. 2. Remove the cabin air filter cover; during installation, align it properly and push it back into position. 3. Pull out the old cabin air filter and replace it with a new one. The installation angle of the cabin air filter can be tricky, but there's no need to worry excessively about the filter deforming during removal or installation—it will naturally expand back into shape once positioned, ensuring no impact on functionality. Functions of the cabin air filter: 1. Ensures the filter fits tightly against the housing, preventing unfiltered air from entering the cabin. 2. Separates dust, pollen, and solid particles like grinding residues from the air. 3. Adsorbs moisture, soot, ozone, odors, carbon oxides, SO2, and CO2 from the air. 4. Prevents condensation on car windows, ensuring clear visibility for drivers and passengers and enhancing driving safety. 5. Maintains clean air in the passenger compartment, preventing bacterial growth and creating a healthy environment.