When does the car air filter need to be replaced?

Air filter element I believe that the car friends are very familiar with, maintenance, is often met accessories. As the engine "mask", the main role is to filter the gas into the engine.

Provide clean air for engine work, prevent excessive impurities and dust into the engine, greatly reduce engine wear and damage. And the air filter element in the use of a period of time, the impurities in the air and dust will be blocked in the filter element, so the air filter element itself will be very dirty, and dirty air filter, will not play its original role, but also damage the engine.

If the dirty air filter has been used, it will lead to dust and debris in the air and other harmful substances will directly enter the engine cylinder. Will accelerate the engine valve, cylinder liner and piston ring wear, thus affecting the life of the engine. If you do not install the air filter element, although it will make the engine intake more smoothly, but the consequences are unthinkable.

And generally in the maintenance of the car, when the air filter is dirty, it is directly washed with high pressure air gun on the air filter. Although it can be very effective to cover the dust impurities on the air filter to blow clean, but often rely on blowing and washing without replacement, the gap in the air filter will become very large. Therefore, it is recommended to replace it by blowing and washing twice or so. Of course, if it is too dirty, it is not necessary to wash and replace it directly.

In addition, in the rainy season, if the air filter element is found to be in the water, it is recommended that the owner immediately turn off, because the air filter element is in the water, the engine is likely to be in the water, so as not to occur in the engine water cylinder!