Cabin Air Filter Replacement — DIY Guide

The cabin air filter cleans the air you breathe inside your car. Most are behind the glove box and take 15 minutes to replace.

Symptoms

• Weak airflow from vents
• Musty smell when AC runs
• More dust on the dashboard
• Allergies worse while driving

Tools

• Just your hands on most vehicles

Steps

1. Empty the glove box: Take everything out so it can hang down freely.
2. Release the glove box stops: Most glove boxes have side stops or arms. Squeeze the sides inward and let the box drop down.
3. Locate the filter housing cover: It's usually a small rectangular plastic door behind the glove box, marked with airflow arrows.
4. Remove the cover: Squeeze the tabs and pull the cover off.
5. Slide out the old filter: Note the airflow direction arrow on the filter — the new one must go in the same way.
6. Insert the new filter: Match the airflow arrow direction. Slide it into the slot fully.
7. Replace the cover and glove box: Snap the housing cover back on, then lift the glove box up until the side stops re-engage.

Safety Notes

• Pay attention to airflow direction — backwards doesn't filter properly

FAQ

How often should I replace it?

Every 15,000-25,000 miles, or annually.

Can I clean it instead?

No, paper filters can't be cleaned effectively. Replace them.