
The cabin air filter in a Discovery 4 is located inside the glove compartment on the passenger side. Simply remove the glove box clips and pull it out to access the filter. The cabin air filter helps absorb dust particles, alleviates respiratory discomfort, reduces irritation for allergy sufferers, and enhances driving comfort while also protecting the vehicle's air conditioning cooling system. Taking the 2020 Land Rover Discovery 4 as an example, it features a 5-door 7-seat SUV body structure with dimensions of 4956mm in length, 2073mm in width, and 1888mm in height. It has a wheelbase of 2923mm, front track of 1692mm, rear track of 1687mm, a fuel tank capacity of 90 liters, and a curb weight of 2330kg.

I've driven this car for several years, and the location of the cabin air filter is near the passenger footwell. You'll need to open the glove compartment or remove the side panel to access it. Before opening the glove box, it's best to empty its contents first, then press the clips on both sides and gently pull to remove it. The filter is housed in a small compartment behind, usually encased in a black or white plastic frame. When replacing, make sure the model matches—the OEM version is a HEPA high-efficiency filter, though cheaper universal alternatives are available in the market. I recommend replacing it every 12 months or 10,000 km, as accumulated dust can degrade cabin air quality and trigger allergies over time. DIY replacement requires a small Phillips screwdriver and some patience—first-timers may spend around 20 minutes, saving ¥100–200 in labor costs at a repair shop. After installation, test the AC airflow to ensure proper fitment.

As an enthusiast who frequently maintains these models, the air conditioning filter of the Discovery 4 is hidden above the passenger footwell, and it can be found by removing the glove box. The specific steps are: first remove the screws or clips, then take off the glove box panel, and the filter is fixed in a rectangular slot behind it. Made of fiber cotton, it effectively filters pollen and pollutants. I remind everyone to pay attention to the replacement timing—if the airflow weakens or there's an odd smell, it's time for a change. DIY replacement requires basic tools like a screwdriver and takes about ten minutes; professional shops may charge but offer more convenience. Long-term neglect not only worsens air quality but may also clog ducts, leading to higher repair costs. Keeping this component clean is crucial for the overall performance of the air conditioning system.

Let me briefly explain. The cabin air filter is located on the passenger side, near the carpet area. Open the glove compartment, remove several clips or screws, and you'll find the filter in a small slot behind it. Before installing a new filter, double-check the size and orientation to avoid incorrect installation. It's recommended to use OEM models to ensure optimal performance. Generally, it's advised to replace it once a year - when too old, accumulated dust can make the cabin air unpleasant. It's quite simple to DIY, requiring only basic tools like a screwdriver. Even beginners can easily complete the task by following instructional videos or manuals.

Considering health and driving comfort, the air filter location in the Discovery 4 is quite well-designed, positioned in the footwell area in front of the passenger seat. Access requires removing the glovebox or lower panel. Replacing it is crucial because aged filters fail to block PM2.5 particles and bacteria. I've seen many owners neglect timely replacement, resulting in polluted cabin air causing coughing. The location isn't hard to find, but avoid forcing components during removal to prevent damaging plastic parts. Personally, I recommend keeping a spare filter for regular maintenance - it improves air quality and reduces AC failure risks. Professional shops offer more thorough inspections, but DIY is fine for tight budgets.

Replacing the air conditioning filter can save a lot of money. For the Discovery 4, the filter is located behind the glove box on the passenger side, and you can see it by removing the cover. When purchasing a filter, choose one that fits your vehicle model, and the model number is usually printed on the frame. Buying online is cheaper than in physical stores. I recommend replacing it every six months to a year because the filter's efficiency decreases over time, affecting cooling performance and increasing fuel consumption. The DIY steps are simple: remove items from the glove box, loosen the fixing screws to take out the old filter, and insert the new one in the same direction. A household Phillips screwdriver is all you need, and the whole process takes just five minutes, saving you the cost of hiring a technician.


