
The air conditioning intake for the Civic is located beneath the cabin air filter. Below is relevant information about the Civic: Introduction: The Honda Civic is available in three body styles - a three-door hatchback, a hardtop coupe, a hybrid version, and a five-door sedan. The Honda Civic launched in the Chinese market shares the same production platform as the existing Dongfeng Honda model, the Honda CR-V. Exterior: The new Civic largely retains the design of its overseas counterpart, featuring full LED headlights. The side profile of the vehicle is more daring than the front, with a gently sloping C-pillar resembling that of a coupe. It sports "parenthesis-style" LED taillights with a design reminiscent of a dart shape.

The Civic's air intake is located inside the engine compartment, and you can find it by following the position of the front grille. Specifically, when you open the hood, you'll see a black plastic box connected to a tube at the front—that's the air filter box, and the opening at the end of the tube is the air intake. It's usually designed at the front right side of the vehicle, near the radiator frame, to draw in fresh air from outside. Why is it designed this way? I think it's mainly to avoid the high-temperature area around the engine, as drawing in cooler air can improve combustion efficiency. If you're replacing the air filter yourself, you'll need to unscrew the fastening clips of the air filter box first, being careful not to let leaves or debris fall inside. Note that you shouldn't arbitrarily lower this position, as driving through deep water during heavy rain could cause water to be sucked in, damaging the engine. After a few years of use, you should also check if the sealing strips have aged or developed air leaks.

My car is a tenth-generation Civic, and I just replaced the cabin air filter myself last week. The air intake is located near the front of the engine bay. If you stand in front of the bumper and look down behind the grille, you'll see the opening of a black plastic duct. It's partially enclosed by the bumper, making it hard to see from underneath. This design primarily considers two factors: first, to prevent rainwater from directly pouring in, and second, to allow cooler air intake. When I cleaned the filter myself, I noticed that leaves and bugs often get stuck in the grille gaps. If left uncleaned for a long time, it can affect the air intake volume. In fact, after the air enters here, it first passes through the filter before reaching the throttle body and then the combustion chamber. If you notice your car has poor acceleration, you can first check if this opening is blocked by debris. The maintenance manual recommends cleaning the accumulated debris around the grille every 20,000 kilometers.

The Civic's intake system design is quite ingenious. The intake inlet is positioned above the radiator support frame at the front, enclosed by the front bumper to form an air duct. This layout has aerodynamic considerations, utilizing airflow pressure during driving to improve intake efficiency. The OEM design hides the intake inlet inside, preventing direct water intake during wading. I've modified several Civics, and car enthusiasts all know this location makes it very convenient to install short ram intakes. The section from the intake inlet to the throttle body is called the intake piping, where aluminum pipes dissipate heat better than plastic ones. A 10-degree drop in intake temperature can boost power, which is why many modders relocate the intake to the grille area. However, be aware this might fail annual inspections, as the OEM design is more reliable.


