How to Replace the Cabin Air Filter in a Classic Focus?

[VanAmelia]

Classic Focus cabin air filter replacement method: 1. First, open the glove compartment cover behind the front passenger seat. 2. Locate the fixing buckle on the right side of the glove compartment and pull it outward firmly. 3. Remove the fixing buckle of the glove compartment cover to detach it. 4. Squeeze both sides of the glove compartment inward with both hands to remove it. 5. After removing the glove compartment, you can see the cabin air filter cover. Press the fixing buckles on both sides of the cover firmly to remove it. 6. Pull the old cabin air filter outward. 7. Install the new cabin air filter and reassemble in reverse order of disassembly (pay attention to the installation direction of the cabin air filter).

[JacksonLynn]

I've been driving a Focus for over a decade and have changed the cabin air filter myself many times. First, you need to remove the glove compartment on the passenger side. There are retaining clips on both sides—just push them toward the center with your fingernail or a flathead screwdriver to release them. After the entire glove compartment hangs down, do you see that rectangular cover panel behind it? Yes, just reach in with your fingers and pull downward to open the filter compartment. When removing the old filter, pay attention to the directional markings. When installing the new one, make sure the arrow points downward—I've seen too many people get this step wrong. Finally, don't forget to clean out any leaf debris in the filter compartment, or you'll have to replace it again in a few months. Doing it yourself costs just 30 yuan, saving you over 200 compared to the dealership, and changing it quarterly is the healthiest practice.

[MacRemington]

Last week, I helped my neighbor replace the cabin air filter on their 2009 Focus. The whole process took just twenty minutes. Remember to operate when the engine is cold, and empty the glove compartment first. The retaining rod can be removed without tools—just squeeze the clips on both sides simultaneously and push forward. When the filter compartment cover slides open, be sure to take a photo to note the curvature direction of the filter, as the new filters can easily get stuck in the groove due to their elasticity. I recommend buying a dual-effect filter with activated carbon; although it costs 20 yuan more, it can filter PM2.5, which is especially helpful for people with rhinitis. When reinstalling, remember to secure the bottom clip first before pushing the cover back on, otherwise there might be gaps causing air leaks.

[LeJuniper]

As a female car owner, I'm most afraid of being fooled by auto repair shops. Actually, changing the cabin air filter for a Focus is super easy. Just rotate the damper rods on both sides of the glove box by 90 degrees to remove it - no tools needed for the whole process. Key points to note: 1. Don't touch the airbag wiring harness on the right side of the glove box; 2. Use a vacuum to clean dust inside the compartment before pulling out the old filter; 3. Gently tap the new filter a few times to unfold creases before installation. I use my phone's flashlight to check the seal - light shouldn't leak through any gaps when properly installed. Cleaning leaves monthly can triple its service life, a trick even dealerships don't mention.