How to Replace the Air Filter for BYD S7?

[StChase]

The air filter for BYD S7 is located on the right side of the engine compartment, and you only need to open the outer cover to replace it. The car's air filter, also known as the air cleaner, primarily filters the air entering the cylinders, mainly removing dust and sand particles. If the air entering the cylinders contains impurities, it can accelerate the wear of the piston group and cylinders, and in severe cases, may even cause serious cylinder scoring. Normally, the air filter should be replaced every 10,000 kilometers, unless you are in an area with severe air pollution, where it may need to be replaced earlier. The body dimensions of the BYD S7 are 4840mm in length, 1855mm in width, and 1720mm in height, with a wheelbase of 2735mm.

[VanNora]

As a BYD S7 owner, I'd like to share my experience replacing the air filter. First, open the engine hood and locate the black rectangular plastic box on the left side of the engine - that's the air filter housing. There are two metal clips on the side of the box that can be opened by hand. Key point: When opening the lid, be mindful of the angle and avoid pulling too hard to prevent breaking the clips. After removing the old filter, remember to wipe out dust inside the housing with a damp cloth, as residual dust can shorten the new filter's lifespan. Before installing the new filter, confirm its orientation - usually the rubber sealing edge faces upward, as installing it backward may cause air leaks. Finally, press the clips firmly until you hear a click to ensure proper installation. I recommend checking the filter monthly, especially for drivers in sandy/dusty areas. A clogged filter directly affects engine performance and fuel consumption. The whole replacement takes less than 10 minutes and is absolutely worth it.

[DiJohn]

I often perform basic maintenance on my BYD S7 in my home garage, and changing the air filter is a must-do task. The entire process requires no tools at all: lift the engine hood to locate the air filter box, which has a conspicuous yellow warning sticker. When releasing the metal clasps at both ends of the cover, pressing the middle part with your thumb makes it easier. After removing the old filter, pay special attention to inspecting the rubber groove at the bottom of the box, as leaves and debris tend to accumulate there. Make sure not to buy the wrong model for the new filter—the original part number for the S7 is BYD-3719010. During installation, ensure the entire rubber sealing strip is fully embedded in the groove; otherwise, dust can seep through the gaps. Testing is simple: start the vehicle and stomp on the accelerator—if there's no hissing sound from the engine compartment, the installation is correct. Regular replacement is crucial for protecting the engine, and filters that turn noticeably black after just 3,000 to 5,000 kilometers should be replaced immediately.

[VonAllison]

Changing the air filter for the S7 yourself is super easy! Just pop open the hood and head straight to the plastic box with clips on the front left—no tools needed. Unclipping the two silver clips feels like opening a snack can, so satisfying. The old filter might be full of leaves and dead bugs—just toss it without hesitation. A new filter costs only about 20 yuan online, and remember to choose one with activated carbon for better filtration. When installing, make sure the arrow points toward the engine—don’t put it in backward. Finally, close the lid and snap the clips shut. I change mine every quarter—low maintenance cost and great for protecting my car. Seeing a clean filter gives me a real sense of accomplishment. Just make sure the engine is off and cooled down before starting—it won’t harm the car at all.

[LeKayden]

Just replaced the air filter for my old S7 last month, sharing some practical tips. Choose a ventilated area for the operation to avoid inhaling dust. Wear gloves before opening the cover to prevent oil stains, and be especially careful not to loosen the wires around the air filter housing. Handle the old filter gently to prevent dislodged dust from entering the engine. For cleaning the housing, use a vacuum instead of an air gun, as the pressure from the air gun may damage the sensors. Don’t cheap out on aftermarket filters—poor edge sealing can allow unfiltered air to seep in. After installation, double-check that the clips are securely fastened; once I didn’t fasten them properly, causing noise in the engine compartment at high speeds. Finally, remember the replacement intervals: change every 10,000 km for city driving, or every 5,000 km for off-road or dusty roads.

[OHarper]

As a female car owner, I absolutely love DIYing simple maintenance like this. The S7 air filter box is super easy to locate—it's on the left side of the engine, marked by the red circle in the diagram. The operation only takes three steps: unclip the fastener to remove the old filter; wipe away dust from the box; then insert the new filter and snap the cover back on. The key point is to confirm the orientation of the filter first—the side with denser patterns usually faces upward. If the fastener is tight when opening the cover, gently tap the box lid before trying again. I recommend preparing a vacuum cleaner and wet wipes: after vacuuming loose dust from the box, use a damp cloth to clean the corners, which is more thorough than what most repair shops do. Every time I finish replacing it, I feel the throttle responds more smoothly—after all, a clean filter helps the engine inhale less dust and save more fuel. The whole process takes just ten minutes and gives me a great sense of accomplishment.