How to replace the air filter
With the increase in car ownership, vehicle maintenance has become one of the focuses of car owners. Recently, among the hot topics about car maintenance on the Internet, "air filter replacement" has become a high-frequency keyword. This article will introduce the function, replacement cycle and replacement steps of the air filter in detail, and attach relevant data for reference.
1. The function of air filter
The air filter is the "mask" of the engine. Its main function is to filter dust, particles and other impurities in the air entering the engine, and protect the internal parts of the engine from wear. Regularly replacing the air filter can effectively improve engine performance and reduce fuel consumption.
| Filter type | Filtration efficiency | Service life |
|---|---|---|
| paper filter element | 95%-99% | 10,000-20,000 kilometers |
| Sponge filter element | 90%-95% | Can be washed and reused |
| Cotton yarn filter element | 85%-90% | 30,000-50,000 kilometers |
2. Replacement cycle recommendations
The air filter replacement cycle varies depending on the vehicle usage environment. Here are the official recommendations from major car brands:
| brand | city road | dusty environment |
|---|---|---|
| toyota | 20,000 kilometers | 10,000 kilometers |
| Volkswagen | 15,000 kilometers | 8000 kilometers |
| Honda | 20,000 kilometers | 12,000 kilometers |
| bmw | 30,000 kilometers | 15,000 kilometers |
3. Detailed explanation of replacement steps
1.Preparation tools: New air filter, Phillips screwdriver, gloves
2.find location: Open the engine hood. The air filter is usually located in the black square box on the left or right side of the engine.
3.Remove the casing: Use a screwdriver to loosen the fixing screws or buckles. Be careful not to completely remove the screws.
4.Take out the old filter element: Carefully take out the old filter and pay attention to the installation direction.
5.Clean filter box: Wipe the dust inside the filter box with a clean rag
6.Install new filter element: Insert the new filter in the original direction, making sure the edges are well sealed
7.reset shell:Cover the case and tighten all screws or buckles
4. Suggestions on purchasing
There are many brands of air filters on the market, and their quality varies. The following is a comparison of mainstream brands:
| brand | price range | Filtering precision | Applicable models |
|---|---|---|---|
| Man brand | 80-150 yuan | 99% | Mainly German cars |
| Mahler | 50-120 yuan | 98% | Common to multiple brands |
| Bosch | 60-130 yuan | 97% | Japanese/European |
| Original accessories | 100-300 yuan | 99.5% | Corresponding brand |
5. Frequently Asked Questions
Q: Can I replace the air filter myself?
A: Absolutely. Air filter replacement is one of the simplest items in car maintenance, requiring no specialized tools or skills.
Q: If the air filter is dirty, can it still be used after blowing it?
A: Not recommended. After the paper filter element is blown, the fiber structure will be destroyed and the filtration effect will be reduced. The sponge filter element can be cleaned and reused.
Q: What will happen if I don’t replace the air filter?
A: It will lead to insufficient air intake in the engine, reduced power, increased fuel consumption, and may damage the engine in severe cases.
6. Precautions
1. Make sure the engine is completely cool when replacing
2. Pay attention to the filter direction mark when installing.
3. Choose formal channels to purchase filters
4. Check the sealing after replacement
Through the above detailed introduction, I believe you have mastered all the key points of air filter replacement. Regularly replacing the air filter not only protects the engine, but also saves fuel costs. It is a very cost-effective maintenance item.
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