The 2013 Hyundai Sonata has two air filters: the engine air filter in the engine bay and the cabin air filter behind the glove box. The engine air filter sits in a rectangular plastic housing in the engine compartment, typically toward the passenger side, with a large intake hose connected to the throttle body. The cabin air filter is housed behind the glove box on the passenger side and is accessed by lowering the glove box or removing a panel. This guide explains how to locate and access both filters.
Engine air filter location
Here is where to find the engine air filter and how to inspect or replace it.
- Locate a rectangular black plastic air box in the engine bay, usually on the passenger side near the front. A thick hose runs from the box toward the throttle body.
- Unclip or unscrew the lid to open the air box, then remove the old filter.
- Check the filter for dirt and replace it with a filter of the correct size and orientation (the arrow on the filter should point toward the throttle body).
- Re-seat the new filter, close the box, and reclip or retighten the lid securely.
Accessing the engine air filter is typically a quick job that can be completed with common hand tools, and it helps ensure proper engine performance and fuel efficiency.
Cabin air filter location
The cabin air filter sits behind the glove box. Access requires lowering or removing the glove box to reach the filter housing.
- Open the glove box and press in the sides or release the glove box stops to drop the box down.
- Look for a rectangular cover behind the glove box; remove the cover to reveal the cabin air filter.
- Take out the old filter, note the directional arrows, and clean the housing if needed.
- Install the new filter with the arrows pointing as directed, reseal the housing, and reassemble the glove box.
Regular cabin air filter replacement improves interior air quality and ensures the HVAC system operates efficiently.
Summary
For a 2013 Hyundai Sonata, the engine air filter is located in a rectangular housing in the engine bay—typically on the passenger side—while the cabin air filter sits behind the glove box on the passenger side. Both filters are accessible with basic tools, and following the replacement steps helps maintain engine performance and interior air quality. Check the owner's manual for exact replacement intervals and any model-specific instructions.