
The GLC has two air conditioning filters, one located in the engine compartment and the other inside the glove box on the passenger side. Here is some additional information about air conditioning filters: 1. Function of the air conditioning filter: The air conditioning filter is a type of filter installed in the car's air conditioning system that can absorb dust particles, alleviate respiratory discomfort, reduce irritation for allergy sufferers, and protect the air conditioning cooling system. 2. Hazards of poor maintenance: Poor maintenance of the air conditioning filter can lead to the accumulation of large amounts of dust and dirt on the filter plate, radiator, evaporator, and fin surfaces, causing airflow blockage. This can result in reduced cooling and heating efficiency of the air conditioning system and a shortened service life.

I've been running an auto repair shop for over a decade. For the Mercedes-Benz GLC, the cabin air filter is typically located in the passenger footwell area. To be more specific, you'll need to sit in the passenger seat, bend down, and look at the area in front of the floor mat where there's usually a small cover or panel clipped in place. Generally, after opening the glove compartment, you'll need to remove the damping rod or unscrew two small screws to reveal the filter housing behind it. When replacing it, I usually use a small screwdriver to gently pry open the housing cover, then pull out the old filter and insert the new one. This location is well-designed to prevent dust from entering the AC system. I recommend changing it every 20,000 kilometers or once a year. DIY replacement can save you about 10-15 dollars in labor costs, but be careful not to force and break the clips. You can choose either OEM or third-party filters – the key is ensuring the size matches, so just verify your model year before purchasing. Wear gloves during the process to avoid getting your hands dirty with dust.

I'm just a regular housewife who usually drives a GLC to pick up and drop off my kids. The cabin air filter is located in the front passenger footwell, and I've changed it myself twice. The first time, my husband taught me—you sit in the passenger seat, move your feet aside, lift the floor mat to see a gray plastic cover, gently press the clips on both sides to open it, and then pull out the rectangular filter housing. Remember to close the car door while working to prevent dust from getting in. When replacing, make sure the arrow on the filter points toward the front of the car; otherwise, it won’t work as well if installed backward. I usually change it once a year, buying the filter online for just a few dozen yuan—much cheaper than going to the dealership. After changing it, the air inside the car feels fresher, especially during spring when pollen is heavy, and my kids don’t sneeze as much. I also wipe around the cover with a damp cloth to prevent dust buildup during the process.

I love tinkering with my car myself, and the GLC's cabin air filter is located in the passenger footwell. Simply put: sit in the passenger seat, reach down to the front of the foot area where there's a plastic panel, and pry it open with your fingernail or a small tool. Then, pull out the filter housing and replace it with a new one. The whole process takes about five minutes. All you need is a Phillips screwdriver, though some newer models don't even require screws—just pry it open. When choosing a filter, go for an activated carbon one to better prevent odors. I check it every season and replace it if it's dirty, saving over a hundred bucks in labor costs. Wash your hands before starting to keep things clean. While you're at it, checking if the AC vents are clear can help extend the system's lifespan.


