The cabin filter in a 2020 BMW X3 is located behind the passenger-side glove box, inside the HVAC housing.
In this article, we explain where to look, how to access the filter, and how to replace it properly to keep the interior air clean and the climate system functioning smoothly.
Location and access
To locate the filter and begin replacement, start with the passenger side of the dash where the glove box sits. Access is gained by lowering or dropping the glove box to expose the filter housing on the HVAC unit.
Use the following steps to locate and replace the cabin air filter on the 2020 X3. The instructions assume a standard configuration with the glove box damper and side stops intact.
- Open the glove box fully and remove contents to create space for working.
- Gently press in the sides of the glove box or release the glove box damper so the box drops down and exposes the filter housing on the passenger side of the dash.
- Unclip or unscrew the cabin filter housing cover to access the filter itself.
- Remove the old filter and inspect the housing for dust or debris; note the correct orientation of the filter arrows.
- Insert the new cabin air filter with the arrows pointing toward the interior of the car, ensuring it seats firmly in the housing.
- Reattach the housing cover, lift the glove box back into place, and reattach the damper or stops so the glove box closes normally.
With the new filter installed and the glove box secured, start the vehicle and run the HVAC on a low setting to confirm airflow is unobstructed and there are no unusual noises.
Tips and cautions
Be careful not to tear the filter frame; if you encounter resistance, don’t force the housing. Use OEM or equivalent filters with proper fit and, if desired, activated carbon to reduce odors. If your X3 has a different trim or a particularly stiff glove box, consult the owner's manual or a BMW technician for an alternate access method.
Summary
For a 2020 BMW X3, the cabin air filter is located behind the passenger-side glove box inside the HVAC housing. Access is achieved by lowering the glove box, removing the filter housing cover, and replacing the filter with the correct orientation. Regular replacement keeps interior air clean and the climate system running efficiently.