For the owner, you may know all the maintenance of the car and all the keys, but you may not know much about its internal structure and performance. Often the more familiar something is, the more likely it is to be overlooked. Below, xiaobian to give you an inventory of some you may not know the car cold knowledge.

One, the life of the airbag

      Airbags are a must for many car owners before buying a car, after all, it is a matter of life safety. Everyone has heard that airbags are very important, but the actual use of airbags is still rare. But on a daily basis, the inspection of airbags cannot be ignored. Book to use side hate less, must not wait until the need for airbag to save time, only to find the airbag is wrong.

      Theoretically speaking, the service life of automobile airbag is consistent with the service life of automobile, but because there is no uniform design standard, the service life of automobile airbag is often less than the service life of automobile. Airbags generally have a service life of eight years. If your car has been running for eight years and the airbag doesn't pop out or explode, then you need to pay special attention: the quality and performance of your car's airbag may not be as good as before. Airbag is the core technology of each manufacturer, each has its own production standard, so it is recommended to go to your car brand 4S shop to replace the airbag.

Normally, a car needs to be checked for airbags and parts at a 4S shop after it has traveled 10,000 to 20,000 kilometers. Just like a car needs maintenance, regular inspection of airbags is a good way to ensure the safety of drivers in the event of an accident.

Two, brake pedal and gas pedal height is not consistent

      When we learned to drive, the coach told us that the brake pedal and the gas pedal were under the management of the right foot. But the person that just drives, because of the likelihood is nervous the gas pedal is brake, cause irreversible consequence. Generally speaking, according to the principle of human body engineering, the brake pedal designed by automobile manufacturers should be about 20mm higher than the gas pedal, but also for safety considerations, the brake pedal and the gas pedal must have a certain degree of identification, to prevent the driver when the brake pedal pedal pedal accident.

Three, why is the glass water blue

      Glass water is made up of water, alcohol, ethylene glycol, corrosion inhibitors and a variety of surfactants. Its main function is to quickly remove stains from the windshield, giving drivers a better view. When adding glass water to a car, have you ever wondered why the glass water is blue? Actually the blue of vitreous water, it is not the color of inside essential component, the pigment that adds however, have no other special meaning.

The purpose of doing so is also very simple, is to remind the majority of owners of glass water is toxic, need to be careful to use, when using and other liquid to distinguish, to avoid adding wrong. Someone once mistakenly put glass water into the brake fluid pipe to cause brake failure, the final car was killed.

Don't refuel in thunderstorms

Some netizens complained on the Internet that when they went to a gas station to fill up on a thunderstorm day, the staff refused to fill up on safety grounds. Many netizens have been attracted to comment, said also once encountered this kind of situation. In fact, it makes sense for the staff to do so.

      Thunderstorm days are full of thunder and lightning, after which the air is filled with a large number of charged particles. When thunder to fuel the oil tank, refueling gun is easy to stray current into the car tank, causing unstable performance of gasoline fire, explosion. Of course, also do not rule out some gas station violations in the thunderstorm days refueling, or suggest the owner for their own safety and the safety of others, try not to refueling in the thunderstorm days. In addition, it is not recommended to refuel when encountering heavy rain or rainstorm. The wind and rain are strong, and the rain water is easy to flow into the fuel tank along the refueling gun, causing safety risks.