These instructions apply to the Tesla Model X (2016-2021).
For other models, please choose your vehicle here.
The cabin air (HEPA) filter on a Tesla Model X (2016–2021) cleans the air coming into the car. A clogged filter is the usual cause of weak airflow or a musty smell, and it is an easy owner swap — it’s reached from the front trunk (frunk), not the footwell.
How to replace the Model X cabin air filter
- Open the frunk and remove the under-hood storage unit (the frunk tub) to expose the filter duct.
- Gently release the HEPA filter from the duct and lift it out of the car.
- Keep the filter’s plastic trim side facing down as you remove it, so you don’t spill debris or damage it.
- Fit the new filter into the duct the same way round and press it gently home.
- Refit the under-hood storage unit.
Replacing it every couple of years (sooner if you drive in dusty or polluted areas) keeps airflow strong and stops odours. A cabin-deodoriser/evaporator treatment at the same time helps clear a lingering musty smell.
Frequently asked questions
Where is the cabin filter on a Model X?
Under the frunk — remove the front storage tub and the HEPA filter sits in the duct beneath it.
Why does my Model X smell musty?
A clogged or damp cabin filter is the common cause. Replace it and treat the evaporator; keeping the climate fan running briefly after Drive also helps dry things out.
How often should I change it?
Roughly every 2–3 years, or sooner in dusty conditions or if airflow drops.
If an airflow or climate warning appears, you can look up the fault code on autodtcs.com.
Independent guide — not affiliated with Tesla. Always follow your official service manual and safety precautions. Read our full disclaimer.