How much do you know about five things about automobile heat dissipation?

How much do you know about five things about automobile heat dissipation?

Now cars have entered people's lives. Many people have their own cars, but most car owners can only drive, but they know little about the cars themselves. Many people call themselves old drivers, but in fact they only know a lot about cars, but they don't know much about some cold knowledge. So how much do you know about the following car cold knowledge?

First, airbags also have a life span.

The airbag of a car is the protection of people after an accident. Every owner knows the airbag and its location when buying a car, but he doesn't know that the airbag is alive.

There is no specific replacement time of automobile airbag in the manual, but it is recommended to check it every 20,000 kilometers. Although the airbag is useless, it will not pop up due to wet lines, sensor failure, gas generator leakage and other reasons.

Second, the brake pedal is higher than the accelerator pedal.

The reason for this design is that there have been many accidents of stepping on the wrong foot before. No matter what car, the brake pedal is higher than the accelerator pedal, mainly to let the driver better distinguish between the accelerator and the brake.

Third, 7200 rpm is actually not fast.

The higher the speed, the faster the speed, which is almost common sense, but in fact, high speed is not directly linked to speed. For example, if you start automatically and step on the accelerator hard, the speed on the fuel gauge will soar, but in fact it is not fast now because of the transmission ratio of the gearbox.

Fourth, the headlight height can be adjusted.

Many car owners think that car headlights is fixed, but the height of headlights can be adjusted. Many car owners have been driving for a long time, and they feel that the headlight height has changed and they can't see the road clearly. At this time, they can open the hood and find the adjustment gear behind the headlights.

Fifth, the throttle does not control the oil.

Many car owners think that the throttle is the switch of the gasoline valve, and the amount of gasoline can be directly controlled by stepping on it, but in fact, the throttle does not directly control the oil, but controls the throttle. When the accelerator is stepped deeply, the opening and closing angle of the accelerator will be relatively large, and the driving computer will send a signal to the fuel injection system according to the intake air volume, which is the complete process of stepping on the accelerator.