
The method for replacing the air filter element in a K3 is as follows: 1. Open the glove box; 2. Pull apart the elastic clips located above the limit rods on both sides; 3. After removing and separating the glove box, the filter element box will be visible; 4. Pry open the elastic clip of the cover, pull out the old filter element, and replace it with a new one. Taking the 2021 Kia K3 as an example, it belongs to the compact car category, with body dimensions of: length 4660mm, width 1780mm, height 1450mm, and a wheelbase of 2700mm. The 2021 Kia K3 is equipped with a 1.4T turbocharged engine, delivering a maximum horsepower of 130PS, a maximum power of 96kW, a maximum torque of 211Nm, and is paired with a 7-speed dual-clutch transmission.

















Changing the air filter for a K3 is actually quite simple, you can do it yourself in just 15 minutes. I always access it from behind the glove compartment. First, adjust the passenger seat all the way back to create space. Open the glove box and you'll see the limit clips on both sides—just squeeze them toward the middle to fully lower the glove box. Be careful when removing the buffer rubber pad inside. At the very back, you'll find a black rectangular filter cover—press the clips on both sides and lift to open. Pull out the old filter directly, and the amount of dust accumulated on it might surprise you. Insert the new filter in the direction of the arrow, making sure not to install it backward. When closing the cover, check that it's tightly sealed. Finally, when reinstalling the rubber pad and glove box limiters, listen for the 'click' sound to ensure they're properly in place. I change it every 5,000 kilometers, saving over 200 yuan compared to doing it at the dealership.

During the last , I found the K3's air filter was as dirty as a rag, and the 4S shop quoted 380. I went home, searched for a tutorial, and replaced it myself, only spending money on the filter. The steps are simple: sit in the passenger seat, bend down to look inside the glove box, press the two plastic protrusions on both sides simultaneously with your thumbs, and the glove box will completely drop down. First, remove the black buffer strap inside, then press open the white filter cover's clips. The old filter was full of willow catkins and leaves—no wonder the AC had an earthy smell. The new filter I bought was only 48 yuan, and I inserted it with the arrow pointing toward the front of the car. When reassembling, first hook the buffer strap back in place, then push the glove box back into position by holding both sides. Now, I replace it myself every maintenance—it takes just three minutes, and I don’t have to worry about being fooled.

Just changed the air filter for my buddy's K3, so easy! Crawl under the passenger side, pull open the glove box, press firmly on both protruding sides with your hands, and the entire glove box will drop down. Use your fingers to unhook the black damping cord, then pry open the four clips of the filter cover with your nails. The old filter pulled out was practically a dust collector. When inserting the new filter, make sure the text side faces up. Key point: You must hear four 'clicks' to ensure the cover is securely fastened. Align the small hook of the damping cord with the hole and hang it properly, then finally push the glove box back up into place. Recommend changing it every spring and autumn—with smooth airflow, even pressing the accelerator feels lighter.

As a mechanical engineer, I find the key to replacing the K3's air filter lies in the details. First, ensure the vehicle is turned off and power is disconnected. When removing the glove box, press the side limit blocks with your fingertips to avoid breakage. Before taking out the MAHLE OEM-spec filter element, tap off any loose dust from the packaging. During installation, observe the airflow arrow pointing toward the firewall. Pay special attention to cleaning the filter box sealing strip thoroughly, as sand particles can cause air leaks. When reinstalling the buffer pull strap, use a deft touch—first hook the top fastener, then snap the bottom into place. To verify a successful replacement, check if the gaps around the filter cover are even; gaps larger than 1mm may indicate improper latching. After this procedure, the engine's intake noise will noticeably decrease.

During my lunch break at work, I casually replaced the air filter for my K3. Crawling under the passenger side, I first located the glove compartment back panel, pressed the two protruding points inward simultaneously, and the entire compartment sagged down. Removing that black elastic hook required fingernail effort, then I unclipped the four plastic fasteners on the filter box. The dust on the old filter was a full two millimeters thick, and the new Bosch filter I bought was even cheaper than the OEM. Note that the filter's corrugations must be inserted vertically, with the side bearing text facing you. When reinstalling, first hook the buffer strap onto the metal ring, then lift the glove compartment upwards and push. After a satisfying click indicating it was back in place, I specifically started the car to test it—the air conditioner's airflow noticeably increased. Now, no need to worry about PM2.5 anymore.


