
The method to replace the air filter of Baojun 730 is as follows: 1. Open the hood. After parking and turning off the engine, pull the hood release lever inside the car firmly. Once the hood pops up, lift the hood latch by hand to open the hood. 2. Remove the screw covers. Insert a flat-head screwdriver into the edge of the cover and pry it upwards to remove it. There are four covers in total. 3. Remove the airbox fixing screws. Use a Phillips screwdriver to remove the four fixing screws. The screws are relatively long, so it may require some effort. 4. Unscrew the oil filler cap. The oil filler cap is not threaded and is secured by two clips. Turn it counterclockwise to the end and pull upwards firmly to remove it. 5. Take off the airbox upper cover. Lift the airbox upper cover by hand and pull it outward to release the clips from the slots, then remove the upper cover. 6. Replace the new air filter. After removing the airbox upper cover, you will see the air filter. Take it out and replace it with a new one. If the air filter is not dirty, you can blow off the dust with compressed air and continue using it. 7. Reinstall the airbox upper cover, tighten the screws, and put the decorative covers back on.

I just replaced the air filter on my old Baojun 730 by myself, and it was quite simple. After opening the engine hood, you can see a rectangular black plastic box under the windshield on the driver's side. Use a Phillips screwdriver to remove five or six screws. Be careful not to drop the screws into the engine bay—I used small magnets to hold them. Lift the top cover, and you'll see the old pleated filter. Don’t rush to pull it out; first, take a photo with your phone to note the original orientation. The new filter cost me 30 yuan online with free shipping. Press the rubber sealing edge firmly to prevent dust leakage, which could harm the engine. When reassembling, make sure the box clips snap into place with a click, and tighten the screws diagonally in turns. Finally, start the car and listen for any air leakage at the intake. The whole process took about 20 minutes, saving me 200 yuan in labor costs compared to going to the 4S shop.

As a car owner, here's a money-saving tip: The air filter of the Baojun 730 is located next to the intake pipe on the right side of the engine. Look for the plastic box with the logo, and use a regular Phillips screwdriver to remove five screws (older models have two additional screws on the side). Be gentle when lifting the lid to avoid breaking the connecting pipe. The air filter has an arrow indicating the intake direction on its side, which is often overlooked—installing it backward reduces filtration efficiency. I drive on mountain roads monthly and replace it every six months, always keeping a spare filter in the trunk. In dusty areas, you can apply some specialized sealing grease on the rubber seal in advance, but be careful not to get it on the filter paper. DIY replacement costs less than forty yuan; just buy a universal model from Mann or Mahle.

Key points from auto repair shop experience: The air filter of the Baojun 730 is located behind the battery. Only a Phillips screwdriver and a clean cloth are needed for the job. Disconnect the negative terminal of the battery before operation for safety. When removing the screws, you'll notice the water collector panel under the windshield needs to be gently lifted. Comparing the old and new filters clearly shows the level of dust accumulation. For coastal areas, it's recommended to replace every 10,000 kilometers. Special reminder: The sponge strip on the edge of the filter must be fully embedded into the slot, otherwise dust will be directly sucked in through the gap. When reassembling, first snap the bottom clips into place before tightening the screws, and finally check if the intake pipe joint is loose. The entire process takes no more than twelve minutes.


