How to change car air filter?

To change a car's engine air filter, open the hood, locate the black plastic air box near the intake hose, unclip or unscrew the housing cover, replace the old filter with a new OEM-spec unit, and seal the housing shut. Replacing an engine air filter takes under 10 minutes, costs $15 to $35 for parts, and requires no specialized tools.

Step-by-Step Replacement Process

Locate the Air Box: Park on flat ground, turn off the engine, open the hood, and locate the black plastic box attached to the thick rubber intake hose.

Open Housing: Unsnap the metal retaining clips or remove the housing bolts using an 8mm/10mm socket or screwdriver.

Swap Filters: Lift out the dirty filter, vacuum out any dirt or debris from the tray bottom, and drop in the fresh filter with the rubber gasket facing up.

Reseal: Secure the top cover back into its tabs and snap the clips or tighten the bolts.

Quick Comparison: Engine vs. Cabin Air Filter
Feature Engine Air Filter Cabin Air Filter
Function Protects engine combustion Cleans cabin HVAC air
Location Under the hood Behind glove box
Interval 12,000–15,000 miles 15,000–20,000 miles